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android / kernel / google-modules / gpu / refs/heads/android-gs-raviole-5.10-android13 / . / mali_kbase / mali_kbase_core_linux.c
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// SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
/*
*
* (C) COPYRIGHT 2010-2022 ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the
* GNU General Public License version 2 as published by the Free Software
* Foundation, and any use by you of this program is subject to the terms
* of such GNU license.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you can access it online at
* http://www.gnu.org/licenses/gpl-2.0.html.
*
*/
#include <mali_kbase.h>
#include <mali_kbase_config_defaults.h>
#include <gpu/mali_kbase_gpu_regmap.h>
#include <mali_kbase_gator.h>
#include <mali_kbase_mem_linux.h>
#ifdef CONFIG_MALI_DEVFREQ
#include <linux/devfreq.h>
#include <backend/gpu/mali_kbase_devfreq.h>
#if IS_ENABLED(CONFIG_DEVFREQ_THERMAL)
#include <ipa/mali_kbase_ipa_debugfs.h>
#endif /* CONFIG_DEVFREQ_THERMAL */
#endif /* CONFIG_MALI_DEVFREQ */
#if IS_ENABLED(CONFIG_MALI_NO_MALI)
#include "backend/gpu/mali_kbase_model_linux.h"
#include <backend/gpu/mali_kbase_model_dummy.h>
#endif /* CONFIG_MALI_NO_MALI */
#include "mali_kbase_mem_profile_debugfs_buf_size.h"
#include "mali_kbase_mem.h"
#include "mali_kbase_mem_pool_debugfs.h"
#include "mali_kbase_mem_pool_group.h"
#include "mali_kbase_debugfs_helper.h"
#include "mali_kbase_regs_history_debugfs.h"
#include <mali_kbase_hwaccess_backend.h>
#include <mali_kbase_hwaccess_time.h>
#if !MALI_USE_CSF
#include <mali_kbase_hwaccess_jm.h>
#endif /* !MALI_USE_CSF */
#ifdef CONFIG_MALI_PRFCNT_SET_SELECT_VIA_DEBUG_FS
#include <mali_kbase_hwaccess_instr.h>
#endif
#include <mali_kbase_reset_gpu.h>
#include <uapi/gpu/arm/midgard/mali_kbase_ioctl.h>
#if !MALI_USE_CSF
#include "mali_kbase_kinstr_jm.h"
#endif
#include "mali_kbase_hwcnt_context.h"
#include "mali_kbase_hwcnt_virtualizer.h"
#include "mali_kbase_kinstr_prfcnt.h"
#include "mali_kbase_vinstr.h"
#if MALI_USE_CSF
#include "csf/mali_kbase_csf_firmware.h"
#include "csf/mali_kbase_csf_tiler_heap.h"
#include "csf/mali_kbase_csf_csg_debugfs.h"
#include "csf/mali_kbase_csf_cpu_queue_debugfs.h"
#include "csf/mali_kbase_csf_event.h"
#endif
#ifdef CONFIG_MALI_ARBITER_SUPPORT
#include "arbiter/mali_kbase_arbiter_pm.h"
#endif
#include "mali_kbase_cs_experimental.h"
#ifdef CONFIG_MALI_CINSTR_GWT
#include "mali_kbase_gwt.h"
#endif
#include "backend/gpu/mali_kbase_pm_internal.h"
#include "mali_kbase_dvfs_debugfs.h"
#if IS_ENABLED(CONFIG_DEBUG_FS)
#include "mali_kbase_pbha_debugfs.h"
#endif
#include <linux/module.h>
#include <linux/init.h>
#include <linux/poll.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/platform_device.h>
#include <linux/of_platform.h>
#include <linux/miscdevice.h>
#include <linux/list.h>
#include <linux/semaphore.h>
#include <linux/fs.h>
#include <linux/uaccess.h>
#include <linux/interrupt.h>
#include <linux/mm.h>
#include <linux/compat.h> /* is_compat_task/in_compat_syscall */
#include <linux/mman.h>
#include <linux/version.h>
#include <mali_kbase_hw.h>
#if defined(CONFIG_SYNC) || defined(CONFIG_SYNC_FILE)
#include <mali_kbase_sync.h>
#endif /* CONFIG_SYNC || CONFIG_SYNC_FILE */
#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/delay.h>
#include <linux/log2.h>
#include <mali_kbase_config.h>
#include <linux/pm_opp.h>
#include <linux/pm_runtime.h>
#include <tl/mali_kbase_timeline.h>
#include <mali_kbase_as_fault_debugfs.h>
#include <device/mali_kbase_device.h>
#include <context/mali_kbase_context.h>
#include <mali_kbase_caps.h>
/* GPU IRQ Tags */
#define JOB_IRQ_TAG 0
#define MMU_IRQ_TAG 1
#define GPU_IRQ_TAG 2
#define KERNEL_SIDE_DDK_VERSION_STRING "K:" MALI_RELEASE_NAME "(GPL)"
/**
* KBASE_API_VERSION - KBase API Version
* @major: Kernel major version
* @minor: Kernel minor version
*/
#define KBASE_API_VERSION(major, minor) ((((major) & 0xFFF) << 20) | \
(((minor) & 0xFFF) << 8) | \
((0 & 0xFF) << 0))
#define KBASE_API_MIN(api_version) ((api_version >> 8) & 0xFFF)
#define KBASE_API_MAJ(api_version) ((api_version >> 20) & 0xFFF)
/**
* struct mali_kbase_capability_def - kbase capabilities table
*
* @required_major: required major
* @required_minor: required minor
*/
struct mali_kbase_capability_def {
u16 required_major;
u16 required_minor;
};
/*
* This must be kept in-sync with mali_kbase_cap
*
* TODO: The alternative approach would be to embed the cap enum values
* in the table. Less efficient but potentially safer.
*/
static const struct mali_kbase_capability_def kbase_caps_table[MALI_KBASE_NUM_CAPS] = {
#if MALI_USE_CSF
{ 1, 0 }, /* SYSTEM_MONITOR */
{ 1, 0 }, /* JIT_PRESSURE_LIMIT */
{ 1, 0 }, /* MEM_GROW_ON_GPF */
{ 1, 0 } /* MEM_PROTECTED */
#else
{ 11, 15 }, /* SYSTEM_MONITOR */
{ 11, 25 }, /* JIT_PRESSURE_LIMIT */
{ 11, 2 }, /* MEM_GROW_ON_GPF */
{ 11, 2 } /* MEM_PROTECTED */
#endif
};
/**
* mali_kbase_supports_cap - Query whether a kbase capability is supported
*
* @api_version: API version to convert
* @cap: Capability to query for - see mali_kbase_caps.h
*
* Return: true if the capability is supported
*/
bool mali_kbase_supports_cap(unsigned long api_version, enum mali_kbase_cap cap)
{
bool supported = false;
unsigned long required_ver;
struct mali_kbase_capability_def const *cap_def;
if (WARN_ON(cap < 0))
return false;
if (WARN_ON(cap >= MALI_KBASE_NUM_CAPS))
return false;
cap_def = &kbase_caps_table[(int)cap];
required_ver = KBASE_API_VERSION(cap_def->required_major, cap_def->required_minor);
supported = (api_version >= required_ver);
return supported;
}
struct task_struct *kbase_create_realtime_thread(struct kbase_device *kbdev,
int (*threadfn)(void *data), void *data, const char namefmt[])
{
unsigned int i;
cpumask_t mask = { CPU_BITS_NONE };
static const struct sched_param param = {
.sched_priority = KBASE_RT_THREAD_PRIO,
};
struct task_struct *ret = kthread_create(kthread_worker_fn, data, namefmt);
if (!IS_ERR(ret)) {
for (i = KBASE_RT_THREAD_CPUMASK_MIN; i <= KBASE_RT_THREAD_CPUMASK_MAX ; i++)
cpumask_set_cpu(i, &mask);
kthread_bind_mask(ret, &mask);
wake_up_process(ret);
if (sched_setscheduler_nocheck(ret, SCHED_FIFO, &param))
dev_warn(kbdev->dev, "%s not set to RT prio", namefmt);
else
dev_dbg(kbdev->dev, "%s set to RT prio: %i",
namefmt, param.sched_priority);
}
return ret;
}
/**
* kbase_file_new - Create an object representing a device file
*
* @kbdev: An instance of the GPU platform device, allocated from the probe
* method of the driver.
* @filp: Pointer to the struct file corresponding to device file
* /dev/malixx instance, passed to the file's open method.
*
* In its initial state, the device file has no context (i.e. no GPU
* address space) and no API version number. Both must be assigned before
* kbase_file_get_kctx_if_setup_complete() can be used successfully.
*
* Return: Address of an object representing a simulated device file, or NULL
* on failure.
*/
static struct kbase_file *kbase_file_new(struct kbase_device *const kbdev,
struct file *const filp)
{
struct kbase_file *const kfile = kmalloc(sizeof(*kfile), GFP_KERNEL);
if (kfile) {
kfile->kbdev = kbdev;
kfile->filp = filp;
kfile->kctx = NULL;
kfile->api_version = 0;
atomic_set(&kfile->setup_state, KBASE_FILE_NEED_VSN);
}
return kfile;
}
/**
* kbase_file_set_api_version - Set the application programmer interface version
*
* @kfile: A device file created by kbase_file_new()
* @major: Major version number (must not exceed 12 bits)
* @minor: Major version number (must not exceed 12 bits)
*
* An application programmer interface (API) version must be specified
* before calling kbase_file_create_kctx(), otherwise an error is returned.
*
* If a version number was already set for the given @kfile (or is in the
* process of being set by another thread) then an error is returned.
*
* Return: 0 if successful, otherwise a negative error code.
*/
static int kbase_file_set_api_version(struct kbase_file *const kfile,
u16 const major, u16 const minor)
{
if (WARN_ON(!kfile))
return -EINVAL;
/* setup pending, try to signal that we'll do the setup,
* if setup was already in progress, err this call
*/
if (atomic_cmpxchg(&kfile->setup_state, KBASE_FILE_NEED_VSN,
KBASE_FILE_VSN_IN_PROGRESS) != KBASE_FILE_NEED_VSN)
return -EPERM;
/* save the proposed version number for later use */
kfile->api_version = KBASE_API_VERSION(major, minor);
atomic_set(&kfile->setup_state, KBASE_FILE_NEED_CTX);
return 0;
}
/**
* kbase_file_get_api_version - Get the application programmer interface version
*
* @kfile: A device file created by kbase_file_new()
*
* Return: The version number (encoded with KBASE_API_VERSION) or 0 if none has
* been set.
*/
static unsigned long kbase_file_get_api_version(struct kbase_file *const kfile)
{
if (WARN_ON(!kfile))
return 0;
if (atomic_read(&kfile->setup_state) < KBASE_FILE_NEED_CTX)
return 0;
return kfile->api_version;
}
/**
* kbase_file_create_kctx - Create a kernel base context
*
* @kfile: A device file created by kbase_file_new()
* @flags: Flags to set, which can be any combination of
* BASEP_CONTEXT_CREATE_KERNEL_FLAGS.
*
* This creates a new context for the GPU platform device instance that was
* specified when kbase_file_new() was called. Each context has its own GPU
* address space. If a context was already created for the given @kfile (or is
* in the process of being created for it by another thread) then an error is
* returned.
*
* An API version number must have been set by kbase_file_set_api_version()
* before calling this function, otherwise an error is returned.
*
* Return: 0 if a new context was created, otherwise a negative error code.
*/
static int kbase_file_create_kctx(struct kbase_file *kfile,
base_context_create_flags flags);
/**
* kbase_file_get_kctx_if_setup_complete - Get a kernel base context
* pointer from a device file
*
* @kfile: A device file created by kbase_file_new()
*
* This function returns an error code (encoded with ERR_PTR) if no context
* has been created for the given @kfile. This makes it safe to use in
* circumstances where the order of initialization cannot be enforced, but
* only if the caller checks the return value.
*
* Return: Address of the kernel base context associated with the @kfile, or
* NULL if no context exists.
*/
static struct kbase_context *kbase_file_get_kctx_if_setup_complete(
struct kbase_file *const kfile)
{
if (WARN_ON(!kfile) ||
atomic_read(&kfile->setup_state) != KBASE_FILE_COMPLETE ||
WARN_ON(!kfile->kctx))
return NULL;
return kfile->kctx;
}
/**
* kbase_file_delete - Destroy an object representing a device file
*
* @kfile: A device file created by kbase_file_new()
*
* If any context was created for the @kfile then it is destroyed.
*/
static void kbase_file_delete(struct kbase_file *const kfile)
{
struct kbase_device *kbdev = NULL;
if (WARN_ON(!kfile))
return;
kfile->filp->private_data = NULL;
kbdev = kfile->kbdev;
if (atomic_read(&kfile->setup_state) == KBASE_FILE_COMPLETE) {
struct kbase_context *kctx = kfile->kctx;
#if IS_ENABLED(CONFIG_DEBUG_FS)
kbasep_mem_profile_debugfs_remove(kctx);
#endif
kbase_context_debugfs_term(kctx);
kbase_destroy_context(kctx);
dev_dbg(kbdev->dev, "deleted base context\n");
}
kbase_release_device(kbdev);
kfree(kfile);
}
static int kbase_api_handshake(struct kbase_file *kfile,
struct kbase_ioctl_version_check *version)
{
int err = 0;
switch (version->major) {
case BASE_UK_VERSION_MAJOR:
/* set minor to be the lowest common */
version->minor = min_t(int, BASE_UK_VERSION_MINOR,
(int)version->minor);
break;
default:
/* We return our actual version regardless if it
* matches the version returned by userspace -
* userspace can bail if it can't handle this
* version
*/
version->major = BASE_UK_VERSION_MAJOR;
version->minor = BASE_UK_VERSION_MINOR;
break;
}
/* save the proposed version number for later use */
err = kbase_file_set_api_version(kfile, version->major, version->minor);
if (unlikely(err))
return err;
/* For backward compatibility, we may need to create the context before
* the flags have been set. Originally it was created on file open
* (with job submission disabled) but we don't support that usage.
*/
if (!mali_kbase_supports_system_monitor(kbase_file_get_api_version(kfile)))
err = kbase_file_create_kctx(kfile,
BASE_CONTEXT_SYSTEM_MONITOR_SUBMIT_DISABLED);
return err;
}
static int kbase_api_handshake_dummy(struct kbase_file *kfile,
struct kbase_ioctl_version_check *version)
{
return -EPERM;
}
static int kbase_api_kinstr_prfcnt_enum_info(
struct kbase_file *kfile,
struct kbase_ioctl_kinstr_prfcnt_enum_info *prfcnt_enum_info)
{
return kbase_kinstr_prfcnt_enum_info(kfile->kbdev->kinstr_prfcnt_ctx,
prfcnt_enum_info);
}
static int kbase_api_kinstr_prfcnt_setup(
struct kbase_file *kfile,
union kbase_ioctl_kinstr_prfcnt_setup *prfcnt_setup)
{
return kbase_kinstr_prfcnt_setup(kfile->kbdev->kinstr_prfcnt_ctx,
prfcnt_setup);
}
static struct kbase_device *to_kbase_device(struct device *dev)
{
return dev_get_drvdata(dev);
}
int assign_irqs(struct kbase_device *kbdev)
{
struct platform_device *pdev;
int i;
if (!kbdev)
return -ENODEV;
pdev = to_platform_device(kbdev->dev);
/* 3 IRQ resources */
for (i = 0; i < 3; i++) {
struct resource *irq_res;
int irqtag;
irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, i);
if (!irq_res) {
dev_err(kbdev->dev, "No IRQ resource at index %d\n", i);
return -ENOENT;
}
#if IS_ENABLED(CONFIG_OF)
if (!strncasecmp(irq_res->name, "JOB", 4)) {
irqtag = JOB_IRQ_TAG;
} else if (!strncasecmp(irq_res->name, "MMU", 4)) {
irqtag = MMU_IRQ_TAG;
} else if (!strncasecmp(irq_res->name, "GPU", 4)) {
irqtag = GPU_IRQ_TAG;
} else {
dev_err(&pdev->dev, "Invalid irq res name: '%s'\n",
irq_res->name);
return -EINVAL;
}
#else
irqtag = i;
#endif /* CONFIG_OF */
kbdev->irqs[irqtag].irq = irq_res->start;
kbdev->irqs[irqtag].flags = irq_res->flags & IRQF_TRIGGER_MASK;
}
return 0;
}
/* Find a particular kbase device (as specified by minor number), or find the "first" device if -1 is specified */
struct kbase_device *kbase_find_device(int minor)
{
struct kbase_device *kbdev = NULL;
struct list_head *entry;
const struct list_head *dev_list = kbase_device_get_list();
list_for_each(entry, dev_list) {
struct kbase_device *tmp;
tmp = list_entry(entry, struct kbase_device, entry);
if (tmp->mdev.minor == minor || minor == -1) {
kbdev = tmp;
get_device(kbdev->dev);
break;
}
}
kbase_device_put_list(dev_list);
return kbdev;
}
EXPORT_SYMBOL(kbase_find_device);
void kbase_release_device(struct kbase_device *kbdev)
{
put_device(kbdev->dev);
}
EXPORT_SYMBOL(kbase_release_device);
#if IS_ENABLED(CONFIG_DEBUG_FS)
#if KERNEL_VERSION(4, 6, 0) > LINUX_VERSION_CODE && \
!(KERNEL_VERSION(4, 4, 28) <= LINUX_VERSION_CODE && \
KERNEL_VERSION(4, 5, 0) > LINUX_VERSION_CODE)
/*
* Older versions, before v4.6, of the kernel doesn't have
* kstrtobool_from_user(), except longterm 4.4.y which had it added in 4.4.28
*/
static int kstrtobool_from_user(const char __user *s, size_t count, bool *res)
{
char buf[4];
count = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, s, count))
return -EFAULT;
buf[count] = '\0';
return strtobool(buf, res);
}
#endif
static ssize_t write_ctx_infinite_cache(struct file *f, const char __user *ubuf, size_t size, loff_t *off)
{
struct kbase_context *kctx = f->private_data;
int err;
bool value;
err = kstrtobool_from_user(ubuf, size, &value);
if (err)
return err;
if (value)
kbase_ctx_flag_set(kctx, KCTX_INFINITE_CACHE);
else
kbase_ctx_flag_clear(kctx, KCTX_INFINITE_CACHE);
return size;
}
static ssize_t read_ctx_infinite_cache(struct file *f, char __user *ubuf, size_t size, loff_t *off)
{
struct kbase_context *kctx = f->private_data;
char buf[32];
int count;
bool value;
value = kbase_ctx_flag(kctx, KCTX_INFINITE_CACHE);
count = scnprintf(buf, sizeof(buf), "%s\n", value ? "Y" : "N");
return simple_read_from_buffer(ubuf, size, off, buf, count);
}
static const struct file_operations kbase_infinite_cache_fops = {
.owner = THIS_MODULE,
.open = simple_open,
.write = write_ctx_infinite_cache,
.read = read_ctx_infinite_cache,
};
static ssize_t write_ctx_force_same_va(struct file *f, const char __user *ubuf,
size_t size, loff_t *off)
{
struct kbase_context *kctx = f->private_data;
int err;
bool value;
err = kstrtobool_from_user(ubuf, size, &value);
if (err)
return err;
if (value) {
#if defined(CONFIG_64BIT)
/* 32-bit clients cannot force SAME_VA */
if (kbase_ctx_flag(kctx, KCTX_COMPAT))
return -EINVAL;
kbase_ctx_flag_set(kctx, KCTX_FORCE_SAME_VA);
#else /* defined(CONFIG_64BIT) */
/* 32-bit clients cannot force SAME_VA */
return -EINVAL;
#endif /* defined(CONFIG_64BIT) */
} else {
kbase_ctx_flag_clear(kctx, KCTX_FORCE_SAME_VA);
}
return size;
}
static ssize_t read_ctx_force_same_va(struct file *f, char __user *ubuf,
size_t size, loff_t *off)
{
struct kbase_context *kctx = f->private_data;
char buf[32];
int count;
bool value;
value = kbase_ctx_flag(kctx, KCTX_FORCE_SAME_VA);
count = scnprintf(buf, sizeof(buf), "%s\n", value ? "Y" : "N");
return simple_read_from_buffer(ubuf, size, off, buf, count);
}
static const struct file_operations kbase_force_same_va_fops = {
.owner = THIS_MODULE,
.open = simple_open,
.write = write_ctx_force_same_va,
.read = read_ctx_force_same_va,
};
#endif /* CONFIG_DEBUG_FS */
static int kbase_file_create_kctx(struct kbase_file *const kfile,
base_context_create_flags const flags)
{
struct kbase_device *kbdev = NULL;
struct kbase_context *kctx = NULL;
#if IS_ENABLED(CONFIG_DEBUG_FS)
char kctx_name[64];
#endif
if (WARN_ON(!kfile))
return -EINVAL;
/* setup pending, try to signal that we'll do the setup,
* if setup was already in progress, err this call
*/
if (atomic_cmpxchg(&kfile->setup_state, KBASE_FILE_NEED_CTX,
KBASE_FILE_CTX_IN_PROGRESS) != KBASE_FILE_NEED_CTX)
return -EPERM;
kbdev = kfile->kbdev;
#if (KERNEL_VERSION(4, 6, 0) <= LINUX_VERSION_CODE)
kctx = kbase_create_context(kbdev, in_compat_syscall(),
flags, kfile->api_version, kfile->filp);
#else
kctx = kbase_create_context(kbdev, is_compat_task(),
flags, kfile->api_version, kfile->filp);
#endif /* (KERNEL_VERSION(4, 6, 0) <= LINUX_VERSION_CODE) */
/* if bad flags, will stay stuck in setup mode */
if (!kctx)
return -ENOMEM;
if (kbdev->infinite_cache_active_default)
kbase_ctx_flag_set(kctx, KCTX_INFINITE_CACHE);
#if IS_ENABLED(CONFIG_DEBUG_FS)
snprintf(kctx_name, 64, "%d_%d", kctx->tgid, kctx->id);
mutex_init(&kctx->mem_profile_lock);
kctx->kctx_dentry = debugfs_create_dir(kctx_name,
kbdev->debugfs_ctx_directory);
if (IS_ERR_OR_NULL(kctx->kctx_dentry)) {
/* we don't treat this as a fail - just warn about it */
dev_warn(kbdev->dev, "couldn't create debugfs dir for kctx\n");
} else {
#if (KERNEL_VERSION(4, 7, 0) > LINUX_VERSION_CODE)
/* prevent unprivileged use of debug file system
* in old kernel version
*/
debugfs_create_file("infinite_cache", 0600, kctx->kctx_dentry,
kctx, &kbase_infinite_cache_fops);
#else
debugfs_create_file("infinite_cache", 0644, kctx->kctx_dentry,
kctx, &kbase_infinite_cache_fops);
#endif
debugfs_create_file("force_same_va", 0600, kctx->kctx_dentry,
kctx, &kbase_force_same_va_fops);
kbase_context_debugfs_init(kctx);
}
#endif /* CONFIG_DEBUG_FS */
dev_dbg(kbdev->dev, "created base context\n");
kfile->kctx = kctx;
atomic_set(&kfile->setup_state, KBASE_FILE_COMPLETE);
return 0;
}
static int kbase_open(struct inode *inode, struct file *filp)
{
struct kbase_device *kbdev = NULL;
struct kbase_file *kfile;
int ret = 0;
kbdev = kbase_find_device(iminor(inode));
if (!kbdev)
return -ENODEV;
/* Device-wide firmware load is moved here from probing to comply with
* Android GKI vendor guideline.
*/
ret = kbase_device_firmware_init_once(kbdev);
if (ret)
goto out;
kfile = kbase_file_new(kbdev, filp);
if (!kfile) {
ret = -ENOMEM;
goto out;
}
filp->private_data = kfile;
filp->f_mode |= FMODE_UNSIGNED_OFFSET;
return 0;
out:
kbase_release_device(kbdev);
return ret;
}
static int kbase_release(struct inode *inode, struct file *filp)
{
struct kbase_file *const kfile = filp->private_data;
kbase_file_delete(kfile);
return 0;
}
static int kbase_api_set_flags(struct kbase_file *kfile,
struct kbase_ioctl_set_flags *flags)
{
int err = 0;
unsigned long const api_version = kbase_file_get_api_version(kfile);
struct kbase_context *kctx = NULL;
/* Validate flags */
if (flags->create_flags !=
(flags->create_flags & BASEP_CONTEXT_CREATE_KERNEL_FLAGS))
return -EINVAL;
/* For backward compatibility, the context may have been created before
* the flags were set.
*/
if (mali_kbase_supports_system_monitor(api_version)) {
err = kbase_file_create_kctx(kfile, flags->create_flags);
} else {
#if !MALI_USE_CSF
struct kbasep_js_kctx_info *js_kctx_info = NULL;
unsigned long irq_flags = 0;
#endif
/* If setup is incomplete (e.g. because the API version
* wasn't set) then we have to give up.
*/
kctx = kbase_file_get_kctx_if_setup_complete(kfile);
if (unlikely(!kctx))
return -EPERM;
#if MALI_USE_CSF
/* On CSF GPUs Job Manager interface isn't used to submit jobs
* (there are no job slots). So the legacy job manager path to
* submit jobs needs to remain disabled for CSF GPUs.
*/
#else
js_kctx_info = &kctx->jctx.sched_info;
rt_mutex_lock(&js_kctx_info->ctx.jsctx_mutex);
spin_lock_irqsave(&kctx->kbdev->hwaccess_lock, irq_flags);
/* Translate the flags */
if ((flags->create_flags &
BASE_CONTEXT_SYSTEM_MONITOR_SUBMIT_DISABLED) == 0)
kbase_ctx_flag_clear(kctx, KCTX_SUBMIT_DISABLED);
spin_unlock_irqrestore(&kctx->kbdev->hwaccess_lock, irq_flags);
rt_mutex_unlock(&js_kctx_info->ctx.jsctx_mutex);
#endif
}
return err;
}
static int kbase_api_apc_request(struct kbase_file *kfile,
struct kbase_ioctl_apc_request *apc)
{
kbase_pm_apc_request(kfile->kbdev, apc->dur_usec);
return 0;
}
#if !MALI_USE_CSF
static int kbase_api_job_submit(struct kbase_context *kctx,
struct kbase_ioctl_job_submit *submit)
{
return kbase_jd_submit(kctx, u64_to_user_ptr(submit->addr),
submit->nr_atoms,
submit->stride, false);
}
#endif /* !MALI_USE_CSF */
static int kbase_api_get_gpuprops(struct kbase_file *kfile,
struct kbase_ioctl_get_gpuprops *get_props)
{
struct kbase_gpu_props *kprops = &kfile->kbdev->gpu_props;
int err;
if (get_props->flags != 0) {
dev_err(kfile->kbdev->dev, "Unsupported flags to get_gpuprops");
return -EINVAL;
}
if (get_props->size == 0)
return kprops->prop_buffer_size;
if (get_props->size < kprops->prop_buffer_size)
return -EINVAL;
err = copy_to_user(u64_to_user_ptr(get_props->buffer),
kprops->prop_buffer,
kprops->prop_buffer_size);
if (err)
return -EFAULT;
return kprops->prop_buffer_size;
}
#if !MALI_USE_CSF
static int kbase_api_post_term(struct kbase_context *kctx)
{
kbase_event_close(kctx);
return 0;
}
#endif /* !MALI_USE_CSF */
#if MALI_USE_CSF
static int kbase_api_mem_alloc_ex(struct kbase_context *kctx,
union kbase_ioctl_mem_alloc_ex *alloc_ex)
{
struct kbase_va_region *reg;
u64 flags = alloc_ex->in.flags;
u64 gpu_va;
/* Calls to this function are inherently asynchronous, with respect to
* MMU operations.
*/
const enum kbase_caller_mmu_sync_info mmu_sync_info = CALLER_MMU_ASYNC;
bool gpu_executable = (flags & BASE_MEM_PROT_GPU_EX) && kbase_has_exec_va_zone(kctx);
bool fixed_or_fixable = (flags & (BASE_MEM_FIXED | BASE_MEM_FIXABLE));
if (!kbase_mem_allow_alloc(kctx))
return -EINVAL;
/* The driver counts the number of FIXABLE and FIXED allocations because
* they're not supposed to happen at the same time. However, that is not
* a security concern: nothing bad happens if the two types of allocations
* are made at the same time. The only reason why the driver is guarding
* against them is because there's no client use case that is supposed
* to need both of them at the same time, and the driver wants to help
* the user space catch some obvious mistake.
*
* The driver is able to switch from FIXABLE allocations to FIXED and
* vice versa, if all the allocations of one kind are freed before trying
* to create allocations of a different kind.
*/
if ((flags & BASE_MEM_FIXED) && (atomic64_read(&kctx->num_fixable_allocs) > 0))
return -EINVAL;
if ((flags & BASE_MEM_FIXABLE) && (atomic64_read(&kctx->num_fixed_allocs) > 0))
return -EINVAL;
if (flags & BASEP_MEM_FLAGS_KERNEL_ONLY)
return -ENOMEM;
/* The fixed_address parameter must be either a non-zero, page-aligned
* value for FIXED allocations or zero for any other kind of allocation.
*/
if (flags & BASE_MEM_FIXED) {
u64 aligned_fixed_address = alloc_ex->in.fixed_address & PAGE_MASK;
if ((aligned_fixed_address == 0) ||
(aligned_fixed_address != alloc_ex->in.fixed_address))
return -EINVAL;
gpu_va = aligned_fixed_address;
} else if (alloc_ex->in.fixed_address != 0) {
return -EINVAL;
}
/* For 64-bit clients, force SAME_VA up to 2^(47)-1.
* For 32-bit clients, force SAME_VA up to 2^(32)-1.
*
* In both cases, the executable and fixed/fixable zones, and
* the executable+fixed/fixable zone, are all above this range.
*/
if ((!kbase_ctx_flag(kctx, KCTX_COMPAT)) &&
kbase_ctx_flag(kctx, KCTX_FORCE_SAME_VA)) {
if (!gpu_executable && !fixed_or_fixable)
flags |= BASE_MEM_SAME_VA;
}
/* If CSF event memory allocation, need to force certain flags.
* SAME_VA - GPU address needs to be used as a CPU address, explicit
* mmap has to be avoided.
* CACHED_CPU - Frequent access to the event memory by CPU.
* COHERENT_SYSTEM - No explicit cache maintenance around the access
* to event memory so need to leverage the coherency support.
*/
if (flags & BASE_MEM_CSF_EVENT) {
/* We cannot honor this request */
if (gpu_executable || fixed_or_fixable)
return -ENOMEM;
flags |= (BASE_MEM_SAME_VA |
BASE_MEM_CACHED_CPU |
BASE_MEM_COHERENT_SYSTEM);
}
reg = kbase_mem_alloc(kctx, alloc_ex->in.va_pages, alloc_ex->in.commit_pages,
alloc_ex->in.extension, &flags, &gpu_va, mmu_sync_info);
if (!reg)
return -ENOMEM;
alloc_ex->out.flags = flags;
alloc_ex->out.gpu_va = gpu_va;
return 0;
}
static int kbase_api_mem_alloc(struct kbase_context *kctx, union kbase_ioctl_mem_alloc *alloc)
{
int ret;
union kbase_ioctl_mem_alloc_ex mem_alloc_ex = { { 0 } };
mem_alloc_ex.in.va_pages = alloc->in.va_pages;
mem_alloc_ex.in.commit_pages = alloc->in.commit_pages;
mem_alloc_ex.in.extension = alloc->in.extension;
mem_alloc_ex.in.flags = alloc->in.flags;
mem_alloc_ex.in.fixed_address = 0;
ret = kbase_api_mem_alloc_ex(kctx, &mem_alloc_ex);
alloc->out.flags = mem_alloc_ex.out.flags;
alloc->out.gpu_va = mem_alloc_ex.out.gpu_va;
return ret;
}
#else
static int kbase_api_mem_alloc(struct kbase_context *kctx, union kbase_ioctl_mem_alloc *alloc)
{
struct kbase_va_region *reg;
u64 flags = alloc->in.flags;
u64 gpu_va;
/* Calls to this function are inherently asynchronous, with respect to
* MMU operations.
*/
const enum kbase_caller_mmu_sync_info mmu_sync_info = CALLER_MMU_ASYNC;
if (!kbase_mem_allow_alloc(kctx))
return -EINVAL;
if (flags & BASEP_MEM_FLAGS_KERNEL_ONLY)
return -ENOMEM;
/* Force SAME_VA if a 64-bit client.
* The only exception is GPU-executable memory if an EXEC_VA zone
* has been initialized. In that case, GPU-executable memory may
* or may not be SAME_VA.
*/
if ((!kbase_ctx_flag(kctx, KCTX_COMPAT)) && kbase_ctx_flag(kctx, KCTX_FORCE_SAME_VA)) {
if (!(flags & BASE_MEM_PROT_GPU_EX) || !kbase_has_exec_va_zone(kctx))
flags |= BASE_MEM_SAME_VA;
}
reg = kbase_mem_alloc(kctx, alloc->in.va_pages, alloc->in.commit_pages, alloc->in.extension,
&flags, &gpu_va, mmu_sync_info);
if (!reg)
return -ENOMEM;
alloc->out.flags = flags;
alloc->out.gpu_va = gpu_va;
return 0;
}
#endif /* MALI_USE_CSF */
static int kbase_api_mem_query(struct kbase_context *kctx,
union kbase_ioctl_mem_query *query)
{
return kbase_mem_query(kctx, query->in.gpu_addr,
query->in.query, &query->out.value);
}
static int kbase_api_mem_free(struct kbase_context *kctx,
struct kbase_ioctl_mem_free *free)
{
return kbase_mem_free(kctx, free->gpu_addr);
}
#if !MALI_USE_CSF
static int kbase_api_kinstr_jm_fd(struct kbase_context *kctx,
union kbase_kinstr_jm_fd *arg)
{
return kbase_kinstr_jm_get_fd(kctx->kinstr_jm, arg);
}
#endif
static int kbase_api_hwcnt_reader_setup(struct kbase_context *kctx,
struct kbase_ioctl_hwcnt_reader_setup *setup)
{
return kbase_vinstr_hwcnt_reader_setup(kctx->kbdev->vinstr_ctx, setup);
}
static int kbase_api_get_cpu_gpu_timeinfo(struct kbase_context *kctx,
union kbase_ioctl_get_cpu_gpu_timeinfo *timeinfo)
{
u32 flags = timeinfo->in.request_flags;
struct timespec64 ts;
u64 timestamp;
u64 cycle_cnt;
kbase_pm_context_active(kctx->kbdev);
kbase_backend_get_gpu_time(kctx->kbdev,
(flags & BASE_TIMEINFO_CYCLE_COUNTER_FLAG) ? &cycle_cnt : NULL,
(flags & BASE_TIMEINFO_TIMESTAMP_FLAG) ? &timestamp : NULL,
(flags & BASE_TIMEINFO_MONOTONIC_FLAG) ? &ts : NULL);
if (flags & BASE_TIMEINFO_TIMESTAMP_FLAG)
timeinfo->out.timestamp = timestamp;
if (flags & BASE_TIMEINFO_CYCLE_COUNTER_FLAG)
timeinfo->out.cycle_counter = cycle_cnt;
if (flags & BASE_TIMEINFO_MONOTONIC_FLAG) {
timeinfo->out.sec = ts.tv_sec;
timeinfo->out.nsec = ts.tv_nsec;
}
kbase_pm_context_idle(kctx->kbdev);
return 0;
}
#if IS_ENABLED(CONFIG_MALI_NO_MALI)
static int kbase_api_hwcnt_set(struct kbase_context *kctx,
struct kbase_ioctl_hwcnt_values *values)
{
gpu_model_set_dummy_prfcnt_sample(
(u32 __user *)(uintptr_t)values->data,
values->size);
return 0;
}
#endif /* CONFIG_MALI_NO_MALI */
static int kbase_api_disjoint_query(struct kbase_context *kctx,
struct kbase_ioctl_disjoint_query *query)
{
query->counter = kbase_disjoint_event_get(kctx->kbdev);
return 0;
}
static int kbase_api_get_ddk_version(struct kbase_context *kctx,
struct kbase_ioctl_get_ddk_version *version)
{
int ret;
int len = sizeof(KERNEL_SIDE_DDK_VERSION_STRING);
if (version->version_buffer == 0)
return len;
if (version->size < len)
return -EOVERFLOW;
ret = copy_to_user(u64_to_user_ptr(version->version_buffer),
KERNEL_SIDE_DDK_VERSION_STRING,
sizeof(KERNEL_SIDE_DDK_VERSION_STRING));
if (ret)
return -EFAULT;
return len;
}
/* Defaults for legacy just-in-time memory allocator initialization
* kernel calls
*/
#define DEFAULT_MAX_JIT_ALLOCATIONS 255
#define JIT_LEGACY_TRIM_LEVEL (0) /* No trimming */
static int kbase_api_mem_jit_init_10_2(struct kbase_context *kctx,
struct kbase_ioctl_mem_jit_init_10_2 *jit_init)
{
kctx->jit_version = 1;
/* since no phys_pages parameter, use the maximum: va_pages */
return kbase_region_tracker_init_jit(kctx, jit_init->va_pages,
DEFAULT_MAX_JIT_ALLOCATIONS,
JIT_LEGACY_TRIM_LEVEL, BASE_MEM_GROUP_DEFAULT,
jit_init->va_pages);
}
static int kbase_api_mem_jit_init_11_5(struct kbase_context *kctx,
struct kbase_ioctl_mem_jit_init_11_5 *jit_init)
{
int i;
kctx->jit_version = 2;
for (i = 0; i < sizeof(jit_init->padding); i++) {
/* Ensure all padding bytes are 0 for potential future
* extension
*/
if (jit_init->padding[i])
return -EINVAL;
}
/* since no phys_pages parameter, use the maximum: va_pages */
return kbase_region_tracker_init_jit(kctx, jit_init->va_pages,
jit_init->max_allocations, jit_init->trim_level,
jit_init->group_id, jit_init->va_pages);
}
static int kbase_api_mem_jit_init(struct kbase_context *kctx,
struct kbase_ioctl_mem_jit_init *jit_init)
{
int i;
kctx->jit_version = 3;
for (i = 0; i < sizeof(jit_init->padding); i++) {
/* Ensure all padding bytes are 0 for potential future
* extension
*/
if (jit_init->padding[i])
return -EINVAL;
}
return kbase_region_tracker_init_jit(kctx, jit_init->va_pages,
jit_init->max_allocations, jit_init->trim_level,
jit_init->group_id, jit_init->phys_pages);
}
static int kbase_api_mem_exec_init(struct kbase_context *kctx,
struct kbase_ioctl_mem_exec_init *exec_init)
{
return kbase_region_tracker_init_exec(kctx, exec_init->va_pages);
}
static int kbase_api_mem_sync(struct kbase_context *kctx,
struct kbase_ioctl_mem_sync *sync)
{
struct basep_syncset sset = {
.mem_handle.basep.handle = sync->handle,
.user_addr = sync->user_addr,
.size = sync->size,
.type = sync->type
};
return kbase_sync_now(kctx, &sset);
}
static int kbase_api_mem_find_cpu_offset(struct kbase_context *kctx,
union kbase_ioctl_mem_find_cpu_offset *find)
{
return kbasep_find_enclosing_cpu_mapping_offset(
kctx,
find->in.cpu_addr,
find->in.size,
&find->out.offset);
}
static int kbase_api_mem_find_gpu_start_and_offset(struct kbase_context *kctx,
union kbase_ioctl_mem_find_gpu_start_and_offset *find)
{
return kbasep_find_enclosing_gpu_mapping_start_and_offset(
kctx,
find->in.gpu_addr,
find->in.size,
&find->out.start,
&find->out.offset);
}
static int kbase_api_get_context_id(struct kbase_context *kctx,
struct kbase_ioctl_get_context_id *info)
{
info->id = kctx->id;
return 0;
}
static int kbase_api_tlstream_acquire(struct kbase_context *kctx,
struct kbase_ioctl_tlstream_acquire *acquire)
{
return kbase_timeline_io_acquire(kctx->kbdev, acquire->flags);
}
static int kbase_api_tlstream_flush(struct kbase_context *kctx)
{
kbase_timeline_streams_flush(kctx->kbdev->timeline);
return 0;
}
static int kbase_api_mem_commit(struct kbase_context *kctx,
struct kbase_ioctl_mem_commit *commit)
{
return kbase_mem_commit(kctx, commit->gpu_addr, commit->pages);
}
static int kbase_api_mem_alias(struct kbase_context *kctx,
union kbase_ioctl_mem_alias *alias)
{
struct base_mem_aliasing_info *ai;
u64 flags;
int err;
if (alias->in.nents == 0 || alias->in.nents > BASE_MEM_ALIAS_MAX_ENTS)
return -EINVAL;
ai = vmalloc(sizeof(*ai) * alias->in.nents);
if (!ai)
return -ENOMEM;
err = copy_from_user(ai,
u64_to_user_ptr(alias->in.aliasing_info),
sizeof(*ai) * alias->in.nents);
if (err) {
vfree(ai);
return -EFAULT;
}
flags = alias->in.flags;
if (flags & BASEP_MEM_FLAGS_KERNEL_ONLY) {
vfree(ai);
return -EINVAL;
}
alias->out.gpu_va = kbase_mem_alias(kctx, &flags,
alias->in.stride, alias->in.nents,
ai, &alias->out.va_pages);
alias->out.flags = flags;
vfree(ai);
if (alias->out.gpu_va == 0)
return -ENOMEM;
return 0;
}
static int kbase_api_mem_import(struct kbase_context *kctx,
union kbase_ioctl_mem_import *import)
{
int ret;
u64 flags = import->in.flags;
if (flags & BASEP_MEM_FLAGS_KERNEL_ONLY)
return -ENOMEM;
ret = kbase_mem_import(kctx,
import->in.type,
u64_to_user_ptr(import->in.phandle),
import->in.padding,
&import->out.gpu_va,
&import->out.va_pages,
&flags);
import->out.flags = flags;
return ret;
}
static int kbase_api_mem_flags_change(struct kbase_context *kctx,
struct kbase_ioctl_mem_flags_change *change)
{
if (change->flags & BASEP_MEM_FLAGS_KERNEL_ONLY)
return -ENOMEM;
return kbase_mem_flags_change(kctx, change->gpu_va,
change->flags, change->mask);
}
static int kbase_api_stream_create(struct kbase_context *kctx,
struct kbase_ioctl_stream_create *stream)
{
#if defined(CONFIG_SYNC) || defined(CONFIG_SYNC_FILE)
int fd, ret;
/* Name must be NULL-terminated and padded with NULLs, so check last
* character is NULL
*/
if (stream->name[sizeof(stream->name)-1] != 0)
return -EINVAL;
ret = kbase_sync_fence_stream_create(stream->name, &fd);
if (ret)
return ret;
return fd;
#else
return -ENOENT;
#endif
}
static int kbase_api_fence_validate(struct kbase_context *kctx,
struct kbase_ioctl_fence_validate *validate)
{
#if defined(CONFIG_SYNC) || defined(CONFIG_SYNC_FILE)
return kbase_sync_fence_validate(validate->fd);
#else
return -ENOENT;
#endif
}
static int kbase_api_mem_profile_add(struct kbase_context *kctx,
struct kbase_ioctl_mem_profile_add *data)
{
char *buf;
int err;
if (data->len > KBASE_MEM_PROFILE_MAX_BUF_SIZE) {
dev_err(kctx->kbdev->dev, "mem_profile_add: buffer too big\n");
return -EINVAL;
}
buf = kmalloc(data->len, GFP_KERNEL);
if (ZERO_OR_NULL_PTR(buf))
return -ENOMEM;
err = copy_from_user(buf, u64_to_user_ptr(data->buffer),
data->len);
if (err) {
kfree(buf);
return -EFAULT;
}
return kbasep_mem_profile_debugfs_insert(kctx, buf, data->len);
}
#if !MALI_USE_CSF
static int kbase_api_soft_event_update(struct kbase_context *kctx,
struct kbase_ioctl_soft_event_update *update)
{
if (update->flags != 0)
return -EINVAL;
return kbase_soft_event_update(kctx, update->event, update->new_status);
}
#endif /* !MALI_USE_CSF */
static int kbase_api_sticky_resource_map(struct kbase_context *kctx,
struct kbase_ioctl_sticky_resource_map *map)
{
int ret;
u64 i;
u64 gpu_addr[BASE_EXT_RES_COUNT_MAX];
if (!map->count || map->count > BASE_EXT_RES_COUNT_MAX)
return -EOVERFLOW;
ret = copy_from_user(gpu_addr, u64_to_user_ptr(map->address),
sizeof(u64) * map->count);
if (ret != 0)
return -EFAULT;
kbase_gpu_vm_lock(kctx);
for (i = 0; i < map->count; i++) {
if (!kbase_sticky_resource_acquire(kctx, gpu_addr[i])) {
/* Invalid resource */
ret = -EINVAL;
break;
}
}
if (ret != 0) {
while (i > 0) {
i--;
kbase_sticky_resource_release_force(kctx, NULL, gpu_addr[i]);
}
}
kbase_gpu_vm_unlock(kctx);
return ret;
}
static int kbase_api_sticky_resource_unmap(struct kbase_context *kctx,
struct kbase_ioctl_sticky_resource_unmap *unmap)
{
int ret;
u64 i;
u64 gpu_addr[BASE_EXT_RES_COUNT_MAX];
if (!unmap->count || unmap->count > BASE_EXT_RES_COUNT_MAX)
return -EOVERFLOW;
ret = copy_from_user(gpu_addr, u64_to_user_ptr(unmap->address),
sizeof(u64) * unmap->count);
if (ret != 0)
return -EFAULT;
kbase_gpu_vm_lock(kctx);
for (i = 0; i < unmap->count; i++) {
if (!kbase_sticky_resource_release_force(kctx, NULL, gpu_addr[i])) {
/* Invalid resource, but we keep going anyway */
ret = -EINVAL;
}
}
kbase_gpu_vm_unlock(kctx);
return ret;
}
#if MALI_UNIT_TEST
static int kbase_api_tlstream_stats(struct kbase_context *kctx,
struct kbase_ioctl_tlstream_stats *stats)
{
kbase_timeline_stats(kctx->kbdev->timeline,
&stats->bytes_collected,
&stats->bytes_generated);
return 0;
}
#endif /* MALI_UNIT_TEST */
#if MALI_USE_CSF
static int kbasep_cs_event_signal(struct kbase_context *kctx)
{
kbase_csf_event_signal_notify_gpu(kctx);
return 0;
}
static int kbasep_cs_queue_register(struct kbase_context *kctx,
struct kbase_ioctl_cs_queue_register *reg)
{
kctx->jit_group_id = BASE_MEM_GROUP_DEFAULT;
return kbase_csf_queue_register(kctx, reg);
}
static int kbasep_cs_queue_register_ex(struct kbase_context *kctx,
struct kbase_ioctl_cs_queue_register_ex *reg)
{
kctx->jit_group_id = BASE_MEM_GROUP_DEFAULT;
return kbase_csf_queue_register_ex(kctx, reg);
}
static int kbasep_cs_queue_terminate(struct kbase_context *kctx,
struct kbase_ioctl_cs_queue_terminate *term)
{
kbase_csf_queue_terminate(kctx, term);
return 0;
}
static int kbasep_cs_queue_bind(struct kbase_context *kctx,
union kbase_ioctl_cs_queue_bind *bind)
{
return kbase_csf_queue_bind(kctx, bind);
}
static int kbasep_cs_queue_kick(struct kbase_context *kctx,
struct kbase_ioctl_cs_queue_kick *kick)
{
return kbase_csf_queue_kick(kctx, kick);
}
static int kbasep_cs_queue_group_create_1_6(
struct kbase_context *kctx,
union kbase_ioctl_cs_queue_group_create_1_6 *create)
{
union kbase_ioctl_cs_queue_group_create
new_create = { .in = {
.tiler_mask = create->in.tiler_mask,
.fragment_mask =
create->in.fragment_mask,
.compute_mask = create->in.compute_mask,
.cs_min = create->in.cs_min,
.priority = create->in.priority,
.tiler_max = create->in.tiler_max,
.fragment_max = create->in.fragment_max,
.compute_max = create->in.compute_max,
} };
int ret = kbase_csf_queue_group_create(kctx, &new_create);
create->out.group_handle = new_create.out.group_handle;
create->out.group_uid = new_create.out.group_uid;
return ret;
}
static int kbasep_cs_queue_group_create(struct kbase_context *kctx,
union kbase_ioctl_cs_queue_group_create *create)
{
return kbase_csf_queue_group_create(kctx, create);
}
static int kbasep_cs_queue_group_terminate(struct kbase_context *kctx,
struct kbase_ioctl_cs_queue_group_term *term)
{
kbase_csf_queue_group_terminate(kctx, term->group_handle);
return 0;
}
static int kbasep_kcpu_queue_new(struct kbase_context *kctx,
struct kbase_ioctl_kcpu_queue_new *new)
{
return kbase_csf_kcpu_queue_new(kctx, new);
}
static int kbasep_kcpu_queue_delete(struct kbase_context *kctx,
struct kbase_ioctl_kcpu_queue_delete *delete)
{
return kbase_csf_kcpu_queue_delete(kctx, delete);
}
static int kbasep_kcpu_queue_enqueue(struct kbase_context *kctx,
struct kbase_ioctl_kcpu_queue_enqueue *enqueue)
{
return kbase_csf_kcpu_queue_enqueue(kctx, enqueue);
}
static int kbasep_cs_tiler_heap_init(struct kbase_context *kctx,
union kbase_ioctl_cs_tiler_heap_init *heap_init)
{
kctx->jit_group_id = heap_init->in.group_id;
return kbase_csf_tiler_heap_init(kctx, heap_init->in.chunk_size,
heap_init->in.initial_chunks, heap_init->in.max_chunks,
heap_init->in.target_in_flight,
&heap_init->out.gpu_heap_va, &heap_init->out.first_chunk_va);
}
static int kbasep_cs_tiler_heap_term(struct kbase_context *kctx,
struct kbase_ioctl_cs_tiler_heap_term *heap_term)
{
return kbase_csf_tiler_heap_term(kctx, heap_term->gpu_heap_va);
}
static int kbase_ioctl_cs_get_glb_iface(struct kbase_context *kctx,
union kbase_ioctl_cs_get_glb_iface *param)
{
struct basep_cs_stream_control *stream_data = NULL;
struct basep_cs_group_control *group_data = NULL;
void __user *user_groups, *user_streams;
int err = 0;
u32 const max_group_num = param->in.max_group_num;
u32 const max_total_stream_num = param->in.max_total_stream_num;
if (max_group_num > MAX_SUPPORTED_CSGS)
return -EINVAL;
if (max_total_stream_num >
MAX_SUPPORTED_CSGS * MAX_SUPPORTED_STREAMS_PER_GROUP)
return -EINVAL;
user_groups = u64_to_user_ptr(param->in.groups_ptr);
user_streams = u64_to_user_ptr(param->in.streams_ptr);
if (max_group_num > 0) {
if (!user_groups)
err = -EINVAL;
else {
group_data = kcalloc(max_group_num,
sizeof(*group_data), GFP_KERNEL);
if (!group_data)
err = -ENOMEM;
}
}
if (max_total_stream_num > 0) {
if (!user_streams)
err = -EINVAL;
else {
stream_data = kcalloc(max_total_stream_num,
sizeof(*stream_data), GFP_KERNEL);
if (!stream_data)
err = -ENOMEM;
}
}
if (!err) {
param->out.total_stream_num = kbase_csf_firmware_get_glb_iface(
kctx->kbdev, group_data, max_group_num, stream_data,
max_total_stream_num, &param->out.glb_version,
&param->out.features, &param->out.group_num,
&param->out.prfcnt_size, &param->out.instr_features);
if (copy_to_user(user_groups, group_data,
MIN(max_group_num, param->out.group_num) *
sizeof(*group_data)))
err = -EFAULT;
}
if (!err)
if (copy_to_user(user_streams, stream_data,
MIN(max_total_stream_num, param->out.total_stream_num) *
sizeof(*stream_data)))
err = -EFAULT;
kfree(group_data);
kfree(stream_data);
return err;
}
static int kbasep_ioctl_cs_cpu_queue_dump(struct kbase_context *kctx,
struct kbase_ioctl_cs_cpu_queue_info *cpu_queue_info)
{
return kbase_csf_cpu_queue_dump(kctx, cpu_queue_info->buffer,
cpu_queue_info->size);
}
#endif /* MALI_USE_CSF */
static int kbasep_ioctl_context_priority_check(struct kbase_context *kctx,
struct kbase_ioctl_context_priority_check *priority_check)
{
#if MALI_USE_CSF
priority_check->priority = kbase_csf_priority_check(kctx->kbdev, priority_check->priority);
#else
base_jd_prio req_priority = (base_jd_prio)priority_check->priority;
priority_check->priority = (u8)kbase_js_priority_check(kctx->kbdev, req_priority);
#endif
return 0;
}
#define KBASE_HANDLE_IOCTL(cmd, function, arg) \
do { \
int ret; \
BUILD_BUG_ON(_IOC_DIR(cmd) != _IOC_NONE); \
dev_dbg(arg->kbdev->dev, "Enter ioctl %s\n", #function); \
ret = function(arg); \
dev_dbg(arg->kbdev->dev, "Return %d from ioctl %s\n", ret, \
#function); \
return ret; \
} while (0)
#define KBASE_HANDLE_IOCTL_IN(cmd, function, type, arg) \
do { \
type param; \
int ret, err; \
dev_dbg(arg->kbdev->dev, "Enter ioctl %s\n", #function); \
BUILD_BUG_ON(_IOC_DIR(cmd) != _IOC_WRITE); \
BUILD_BUG_ON(sizeof(param) != _IOC_SIZE(cmd)); \
err = copy_from_user(&param, uarg, sizeof(param)); \
if (err) \
return -EFAULT; \
ret = function(arg, &param); \
dev_dbg(arg->kbdev->dev, "Return %d from ioctl %s\n", ret, \
#function); \
return ret; \
} while (0)
#define KBASE_HANDLE_IOCTL_OUT(cmd, function, type, arg) \
do { \
type param; \
int ret, err; \
dev_dbg(arg->kbdev->dev, "Enter ioctl %s\n", #function); \
BUILD_BUG_ON(_IOC_DIR(cmd) != _IOC_READ); \
BUILD_BUG_ON(sizeof(param) != _IOC_SIZE(cmd)); \
memset(&param, 0, sizeof(param)); \
ret = function(arg, &param); \
err = copy_to_user(uarg, &param, sizeof(param)); \
if (err) \
return -EFAULT; \
dev_dbg(arg->kbdev->dev, "Return %d from ioctl %s\n", ret, \
#function); \
return ret; \
} while (0)
#define KBASE_HANDLE_IOCTL_INOUT(cmd, function, type, arg) \
do { \
type param; \
int ret, err; \
dev_dbg(arg->kbdev->dev, "Enter ioctl %s\n", #function); \
BUILD_BUG_ON(_IOC_DIR(cmd) != (_IOC_WRITE | _IOC_READ)); \
BUILD_BUG_ON(sizeof(param) != _IOC_SIZE(cmd)); \
err = copy_from_user(&param, uarg, sizeof(param)); \
if (err) \
return -EFAULT; \
ret = function(arg, &param); \
err = copy_to_user(uarg, &param, sizeof(param)); \
if (err) \
return -EFAULT; \
dev_dbg(arg->kbdev->dev, "Return %d from ioctl %s\n", ret, \
#function); \
return ret; \
} while (0)
static int kbasep_ioctl_set_limited_core_count(struct kbase_context *kctx,
struct kbase_ioctl_set_limited_core_count *set_limited_core_count)
{
const u64 shader_core_mask =
kbase_pm_get_present_cores(kctx->kbdev, KBASE_PM_CORE_SHADER);
const u64 limited_core_mask =
((u64)1 << (set_limited_core_count->max_core_count)) - 1;
if ((shader_core_mask & limited_core_mask) == 0) {
/* At least one shader core must be available after applying the mask */
return -EINVAL;
}
kctx->limited_core_mask = limited_core_mask;
return 0;
}
static long kbase_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
struct kbase_file *const kfile = filp->private_data;
struct kbase_context *kctx = NULL;
struct kbase_device *kbdev = kfile->kbdev;
void __user *uarg = (void __user *)arg;
/* Only these ioctls are available until setup is complete */
switch (cmd) {
case KBASE_IOCTL_VERSION_CHECK:
KBASE_HANDLE_IOCTL_INOUT(KBASE_IOCTL_VERSION_CHECK,
kbase_api_handshake,
struct kbase_ioctl_version_check,
kfile);
break;
case KBASE_IOCTL_VERSION_CHECK_RESERVED:
KBASE_HANDLE_IOCTL_INOUT(KBASE_IOCTL_VERSION_CHECK_RESERVED,
kbase_api_handshake_dummy,
struct kbase_ioctl_version_check,
kfile);
break;
case KBASE_IOCTL_SET_FLAGS:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_SET_FLAGS,
kbase_api_set_flags,
struct kbase_ioctl_set_flags,
kfile);
break;
case KBASE_IOCTL_APC_REQUEST:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_APC_REQUEST,
kbase_api_apc_request,
struct kbase_ioctl_apc_request,
kfile);
break;
case KBASE_IOCTL_KINSTR_PRFCNT_ENUM_INFO:
KBASE_HANDLE_IOCTL_INOUT(
KBASE_IOCTL_KINSTR_PRFCNT_ENUM_INFO,
kbase_api_kinstr_prfcnt_enum_info,
struct kbase_ioctl_kinstr_prfcnt_enum_info, kfile);
break;
case KBASE_IOCTL_KINSTR_PRFCNT_SETUP:
KBASE_HANDLE_IOCTL_INOUT(KBASE_IOCTL_KINSTR_PRFCNT_SETUP,
kbase_api_kinstr_prfcnt_setup,
union kbase_ioctl_kinstr_prfcnt_setup,
kfile);
break;
case KBASE_IOCTL_GET_GPUPROPS:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_GET_GPUPROPS, kbase_api_get_gpuprops,
struct kbase_ioctl_get_gpuprops, kfile);
break;
}
kctx = kbase_file_get_kctx_if_setup_complete(kfile);
if (unlikely(!kctx))
return -EPERM;
/* Normal ioctls */
switch (cmd) {
#if !MALI_USE_CSF
case KBASE_IOCTL_JOB_SUBMIT:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_JOB_SUBMIT,
kbase_api_job_submit,
struct kbase_ioctl_job_submit,
kctx);
break;
#endif /* !MALI_USE_CSF */
#if !MALI_USE_CSF
case KBASE_IOCTL_POST_TERM:
KBASE_HANDLE_IOCTL(KBASE_IOCTL_POST_TERM,
kbase_api_post_term,
kctx);
break;
#endif /* !MALI_USE_CSF */
case KBASE_IOCTL_MEM_ALLOC:
KBASE_HANDLE_IOCTL_INOUT(KBASE_IOCTL_MEM_ALLOC,
kbase_api_mem_alloc,
union kbase_ioctl_mem_alloc,
kctx);
break;
#if MALI_USE_CSF
case KBASE_IOCTL_MEM_ALLOC_EX:
KBASE_HANDLE_IOCTL_INOUT(KBASE_IOCTL_MEM_ALLOC_EX, kbase_api_mem_alloc_ex,
union kbase_ioctl_mem_alloc_ex, kctx);
break;
#endif
case KBASE_IOCTL_MEM_QUERY:
KBASE_HANDLE_IOCTL_INOUT(KBASE_IOCTL_MEM_QUERY,
kbase_api_mem_query,
union kbase_ioctl_mem_query,
kctx);
break;
case KBASE_IOCTL_MEM_FREE:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_MEM_FREE,
kbase_api_mem_free,
struct kbase_ioctl_mem_free,
kctx);
break;
case KBASE_IOCTL_DISJOINT_QUERY:
KBASE_HANDLE_IOCTL_OUT(KBASE_IOCTL_DISJOINT_QUERY,
kbase_api_disjoint_query,
struct kbase_ioctl_disjoint_query,
kctx);
break;
case KBASE_IOCTL_GET_DDK_VERSION:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_GET_DDK_VERSION,
kbase_api_get_ddk_version,
struct kbase_ioctl_get_ddk_version,
kctx);
break;
case KBASE_IOCTL_MEM_JIT_INIT_10_2:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_MEM_JIT_INIT_10_2,
kbase_api_mem_jit_init_10_2,
struct kbase_ioctl_mem_jit_init_10_2,
kctx);
break;
case KBASE_IOCTL_MEM_JIT_INIT_11_5:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_MEM_JIT_INIT_11_5,
kbase_api_mem_jit_init_11_5,
struct kbase_ioctl_mem_jit_init_11_5,
kctx);
break;
case KBASE_IOCTL_MEM_JIT_INIT:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_MEM_JIT_INIT,
kbase_api_mem_jit_init,
struct kbase_ioctl_mem_jit_init,
kctx);
break;
case KBASE_IOCTL_MEM_EXEC_INIT:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_MEM_EXEC_INIT,
kbase_api_mem_exec_init,
struct kbase_ioctl_mem_exec_init,
kctx);
break;
case KBASE_IOCTL_MEM_SYNC:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_MEM_SYNC,
kbase_api_mem_sync,
struct kbase_ioctl_mem_sync,
kctx);
break;
case KBASE_IOCTL_MEM_FIND_CPU_OFFSET:
KBASE_HANDLE_IOCTL_INOUT(KBASE_IOCTL_MEM_FIND_CPU_OFFSET,
kbase_api_mem_find_cpu_offset,
union kbase_ioctl_mem_find_cpu_offset,
kctx);
break;
case KBASE_IOCTL_MEM_FIND_GPU_START_AND_OFFSET:
KBASE_HANDLE_IOCTL_INOUT(KBASE_IOCTL_MEM_FIND_GPU_START_AND_OFFSET,
kbase_api_mem_find_gpu_start_and_offset,
union kbase_ioctl_mem_find_gpu_start_and_offset,
kctx);
break;
case KBASE_IOCTL_GET_CONTEXT_ID:
KBASE_HANDLE_IOCTL_OUT(KBASE_IOCTL_GET_CONTEXT_ID,
kbase_api_get_context_id,
struct kbase_ioctl_get_context_id,
kctx);
break;
case KBASE_IOCTL_TLSTREAM_ACQUIRE:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_TLSTREAM_ACQUIRE,
kbase_api_tlstream_acquire,
struct kbase_ioctl_tlstream_acquire,
kctx);
break;
case KBASE_IOCTL_TLSTREAM_FLUSH:
KBASE_HANDLE_IOCTL(KBASE_IOCTL_TLSTREAM_FLUSH,
kbase_api_tlstream_flush,
kctx);
break;
case KBASE_IOCTL_MEM_COMMIT:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_MEM_COMMIT,
kbase_api_mem_commit,
struct kbase_ioctl_mem_commit,
kctx);
break;
case KBASE_IOCTL_MEM_ALIAS:
KBASE_HANDLE_IOCTL_INOUT(KBASE_IOCTL_MEM_ALIAS,
kbase_api_mem_alias,
union kbase_ioctl_mem_alias,
kctx);
break;
case KBASE_IOCTL_MEM_IMPORT:
KBASE_HANDLE_IOCTL_INOUT(KBASE_IOCTL_MEM_IMPORT,
kbase_api_mem_import,
union kbase_ioctl_mem_import,
kctx);
break;
case KBASE_IOCTL_MEM_FLAGS_CHANGE:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_MEM_FLAGS_CHANGE,
kbase_api_mem_flags_change,
struct kbase_ioctl_mem_flags_change,
kctx);
break;
case KBASE_IOCTL_STREAM_CREATE:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_STREAM_CREATE,
kbase_api_stream_create,
struct kbase_ioctl_stream_create,
kctx);
break;
case KBASE_IOCTL_FENCE_VALIDATE:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_FENCE_VALIDATE,
kbase_api_fence_validate,
struct kbase_ioctl_fence_validate,
kctx);
break;
case KBASE_IOCTL_MEM_PROFILE_ADD:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_MEM_PROFILE_ADD,
kbase_api_mem_profile_add,
struct kbase_ioctl_mem_profile_add,
kctx);
break;
#if !MALI_USE_CSF
case KBASE_IOCTL_SOFT_EVENT_UPDATE:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_SOFT_EVENT_UPDATE,
kbase_api_soft_event_update,
struct kbase_ioctl_soft_event_update,
kctx);
break;
#endif /* !MALI_USE_CSF */
case KBASE_IOCTL_STICKY_RESOURCE_MAP:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_STICKY_RESOURCE_MAP,
kbase_api_sticky_resource_map,
struct kbase_ioctl_sticky_resource_map,
kctx);
break;
case KBASE_IOCTL_STICKY_RESOURCE_UNMAP:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_STICKY_RESOURCE_UNMAP,
kbase_api_sticky_resource_unmap,
struct kbase_ioctl_sticky_resource_unmap,
kctx);
break;
/* Instrumentation. */
#if !MALI_USE_CSF
case KBASE_IOCTL_KINSTR_JM_FD:
KBASE_HANDLE_IOCTL_INOUT(KBASE_IOCTL_KINSTR_JM_FD,
kbase_api_kinstr_jm_fd,
union kbase_kinstr_jm_fd,
kctx);
break;
#endif
case KBASE_IOCTL_HWCNT_READER_SETUP:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_HWCNT_READER_SETUP,
kbase_api_hwcnt_reader_setup,
struct kbase_ioctl_hwcnt_reader_setup,
kctx);
break;
case KBASE_IOCTL_GET_CPU_GPU_TIMEINFO:
KBASE_HANDLE_IOCTL_INOUT(KBASE_IOCTL_GET_CPU_GPU_TIMEINFO,
kbase_api_get_cpu_gpu_timeinfo,
union kbase_ioctl_get_cpu_gpu_timeinfo,
kctx);
break;
#if IS_ENABLED(CONFIG_MALI_NO_MALI)
case KBASE_IOCTL_HWCNT_SET:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_HWCNT_SET,
kbase_api_hwcnt_set,
struct kbase_ioctl_hwcnt_values,
kctx);
break;
#endif /* CONFIG_MALI_NO_MALI */
#ifdef CONFIG_MALI_CINSTR_GWT
case KBASE_IOCTL_CINSTR_GWT_START:
KBASE_HANDLE_IOCTL(KBASE_IOCTL_CINSTR_GWT_START,
kbase_gpu_gwt_start,
kctx);
break;
case KBASE_IOCTL_CINSTR_GWT_STOP:
KBASE_HANDLE_IOCTL(KBASE_IOCTL_CINSTR_GWT_STOP,
kbase_gpu_gwt_stop,
kctx);
break;
case KBASE_IOCTL_CINSTR_GWT_DUMP:
KBASE_HANDLE_IOCTL_INOUT(KBASE_IOCTL_CINSTR_GWT_DUMP,
kbase_gpu_gwt_dump,
union kbase_ioctl_cinstr_gwt_dump,
kctx);
break;
#endif
#if MALI_USE_CSF
case KBASE_IOCTL_CS_EVENT_SIGNAL:
KBASE_HANDLE_IOCTL(KBASE_IOCTL_CS_EVENT_SIGNAL,
kbasep_cs_event_signal,
kctx);
break;
case KBASE_IOCTL_CS_QUEUE_REGISTER:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_CS_QUEUE_REGISTER,
kbasep_cs_queue_register,
struct kbase_ioctl_cs_queue_register,
kctx);
break;
case KBASE_IOCTL_CS_QUEUE_REGISTER_EX:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_CS_QUEUE_REGISTER_EX,
kbasep_cs_queue_register_ex,
struct kbase_ioctl_cs_queue_register_ex,
kctx);
break;
case KBASE_IOCTL_CS_QUEUE_TERMINATE:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_CS_QUEUE_TERMINATE,
kbasep_cs_queue_terminate,
struct kbase_ioctl_cs_queue_terminate,
kctx);
break;
case KBASE_IOCTL_CS_QUEUE_BIND:
KBASE_HANDLE_IOCTL_INOUT(KBASE_IOCTL_CS_QUEUE_BIND,
kbasep_cs_queue_bind,
union kbase_ioctl_cs_queue_bind,
kctx);
break;
case KBASE_IOCTL_CS_QUEUE_KICK:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_CS_QUEUE_KICK,
kbasep_cs_queue_kick,
struct kbase_ioctl_cs_queue_kick,
kctx);
break;
case KBASE_IOCTL_CS_QUEUE_GROUP_CREATE_1_6:
KBASE_HANDLE_IOCTL_INOUT(
KBASE_IOCTL_CS_QUEUE_GROUP_CREATE_1_6,
kbasep_cs_queue_group_create_1_6,
union kbase_ioctl_cs_queue_group_create_1_6, kctx);
break;
case KBASE_IOCTL_CS_QUEUE_GROUP_CREATE:
KBASE_HANDLE_IOCTL_INOUT(KBASE_IOCTL_CS_QUEUE_GROUP_CREATE,
kbasep_cs_queue_group_create,
union kbase_ioctl_cs_queue_group_create,
kctx);
break;
case KBASE_IOCTL_CS_QUEUE_GROUP_TERMINATE:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_CS_QUEUE_GROUP_TERMINATE,
kbasep_cs_queue_group_terminate,
struct kbase_ioctl_cs_queue_group_term,
kctx);
break;
case KBASE_IOCTL_KCPU_QUEUE_CREATE:
KBASE_HANDLE_IOCTL_OUT(KBASE_IOCTL_KCPU_QUEUE_CREATE,
kbasep_kcpu_queue_new,
struct kbase_ioctl_kcpu_queue_new,
kctx);
break;
case KBASE_IOCTL_KCPU_QUEUE_DELETE:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_KCPU_QUEUE_DELETE,
kbasep_kcpu_queue_delete,
struct kbase_ioctl_kcpu_queue_delete,
kctx);
break;
case KBASE_IOCTL_KCPU_QUEUE_ENQUEUE:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_KCPU_QUEUE_ENQUEUE,
kbasep_kcpu_queue_enqueue,
struct kbase_ioctl_kcpu_queue_enqueue,
kctx);
break;
case KBASE_IOCTL_CS_TILER_HEAP_INIT:
KBASE_HANDLE_IOCTL_INOUT(KBASE_IOCTL_CS_TILER_HEAP_INIT,
kbasep_cs_tiler_heap_init,
union kbase_ioctl_cs_tiler_heap_init,
kctx);
break;
case KBASE_IOCTL_CS_TILER_HEAP_TERM:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_CS_TILER_HEAP_TERM,
kbasep_cs_tiler_heap_term,
struct kbase_ioctl_cs_tiler_heap_term,
kctx);
break;
case KBASE_IOCTL_CS_GET_GLB_IFACE:
KBASE_HANDLE_IOCTL_INOUT(KBASE_IOCTL_CS_GET_GLB_IFACE,
kbase_ioctl_cs_get_glb_iface,
union kbase_ioctl_cs_get_glb_iface,
kctx);
break;
case KBASE_IOCTL_CS_CPU_QUEUE_DUMP:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_CS_CPU_QUEUE_DUMP,
kbasep_ioctl_cs_cpu_queue_dump,
struct kbase_ioctl_cs_cpu_queue_info,
kctx);
break;
#endif /* MALI_USE_CSF */
#if MALI_UNIT_TEST
case KBASE_IOCTL_TLSTREAM_STATS:
KBASE_HANDLE_IOCTL_OUT(KBASE_IOCTL_TLSTREAM_STATS,
kbase_api_tlstream_stats,
struct kbase_ioctl_tlstream_stats,
kctx);
break;
#endif /* MALI_UNIT_TEST */
case KBASE_IOCTL_CONTEXT_PRIORITY_CHECK:
KBASE_HANDLE_IOCTL_INOUT(KBASE_IOCTL_CONTEXT_PRIORITY_CHECK,
kbasep_ioctl_context_priority_check,
struct kbase_ioctl_context_priority_check,
kctx);
break;
case KBASE_IOCTL_SET_LIMITED_CORE_COUNT:
KBASE_HANDLE_IOCTL_IN(KBASE_IOCTL_SET_LIMITED_CORE_COUNT,
kbasep_ioctl_set_limited_core_count,
struct kbase_ioctl_set_limited_core_count,
kctx);
break;
}
dev_warn(kbdev->dev, "Unknown ioctl 0x%x nr:%d", cmd, _IOC_NR(cmd));
return -ENOIOCTLCMD;
}
#if MALI_USE_CSF
static ssize_t kbase_read(struct file *filp, char __user *buf, size_t count, loff_t *f_pos)
{
struct kbase_file *const kfile = filp->private_data;
struct kbase_context *const kctx =
kbase_file_get_kctx_if_setup_complete(kfile);
struct base_csf_notification event_data = {
.type = BASE_CSF_NOTIFICATION_EVENT };
const size_t data_size = sizeof(event_data);
bool read_event = false, read_error = false;
if (unlikely(!kctx))
return -EPERM;
if (atomic_read(&kctx->event_count))
read_event = true;
else
read_error = kbase_csf_event_read_error(kctx, &event_data);
if (!read_event && !read_error) {
bool dump = kbase_csf_cpu_queue_read_dump_req(kctx,
&event_data);
/* This condition is not treated as an error.
* It is possible that event handling thread was woken up due
* to a fault/error that occurred for a queue group, but before
* the corresponding fault data was read by the thread the
* queue group was already terminated by the userspace.
*/
if (!dump)
dev_dbg(kctx->kbdev->dev,
"Neither event nor error signaled");
}
if (copy_to_user(buf, &event_data, data_size) != 0) {
dev_warn(kctx->kbdev->dev,
"Failed to copy data\n");
return -EFAULT;
}
if (read_event)
atomic_set(&kctx->event_count, 0);
return data_size;
}
#else /* MALI_USE_CSF */
static ssize_t kbase_read(struct file *filp, char __user *buf, size_t count, loff_t *f_pos)
{
struct kbase_file *const kfile = filp->private_data;
struct kbase_context *const kctx =
kbase_file_get_kctx_if_setup_complete(kfile);
struct base_jd_event_v2 uevent;
int out_count = 0;
if (unlikely(!kctx))
return -EPERM;
if (count < sizeof(uevent))
return -ENOBUFS;
memset(&uevent, 0, sizeof(uevent));
do {
while (kbase_event_dequeue(kctx, &uevent)) {
if (out_count > 0)
goto out;
if (filp->f_flags & O_NONBLOCK)
return -EAGAIN;
if (wait_event_interruptible(kctx->event_queue,
kbase_event_pending(kctx)) != 0)
return -ERESTARTSYS;
}
if (uevent.event_code == BASE_JD_EVENT_DRV_TERMINATED) {
if (out_count == 0)
return -EPIPE;
goto out;
}
if (copy_to_user(buf, &uevent, sizeof(uevent)) != 0)
return -EFAULT;
buf += sizeof(uevent);
out_count++;
count -= sizeof(uevent);
} while (count >= sizeof(uevent));
out:
return out_count * sizeof(uevent);
}
#endif /* MALI_USE_CSF */
static unsigned int kbase_poll(struct file *filp, poll_table *wait)
{
struct kbase_file *const kfile = filp->private_data;
struct kbase_context *const kctx =
kbase_file_get_kctx_if_setup_complete(kfile);
if (unlikely(!kctx))
return POLLERR;
poll_wait(filp, &kctx->event_queue, wait);
if (kbase_event_pending(kctx))
return POLLIN | POLLRDNORM;
return 0;
}
void _kbase_event_wakeup(struct kbase_context *kctx, bool sync)
{
KBASE_DEBUG_ASSERT(kctx);
if(sync) {
dev_dbg(kctx->kbdev->dev,
"Waking event queue for context %pK (sync)\n", (void *)kctx);
wake_up_interruptible_sync(&kctx->event_queue);
}
else {
dev_dbg(kctx->kbdev->dev,
"Waking event queue for context %pK (nosync)\n",(void *)kctx);
wake_up_interruptible(&kctx->event_queue);
}
}
KBASE_EXPORT_TEST_API(_kbase_event_wakeup);
#if MALI_USE_CSF
int kbase_event_pending(struct kbase_context *ctx)
{
WARN_ON_ONCE(!ctx);
return (atomic_read(&ctx->event_count) != 0) ||
kbase_csf_event_error_pending(ctx) ||
kbase_csf_cpu_queue_dump_needed(ctx);
}
#else
int kbase_event_pending(struct kbase_context *ctx)
{
KBASE_DEBUG_ASSERT(ctx);
return (atomic_read(&ctx->event_count) != 0) ||
(atomic_read(&ctx->event_closed) != 0);
}
#endif
KBASE_EXPORT_TEST_API(kbase_event_pending);
static int kbase_mmap(struct file *const filp, struct vm_area_struct *const vma)
{
struct kbase_file *const kfile = filp->private_data;
struct kbase_context *const kctx =
kbase_file_get_kctx_if_setup_complete(kfile);
if (unlikely(!kctx))
return -EPERM;
return kbase_context_mmap(kctx, vma);
}
static int kbase_check_flags(int flags)
{
/* Enforce that the driver keeps the O_CLOEXEC flag so that execve() always
* closes the file descriptor in a child process.
*/
if (0 == (flags & O_CLOEXEC))
return -EINVAL;
return 0;
}
static unsigned long kbase_get_unmapped_area(struct file *const filp,
const unsigned long addr, const unsigned long len,
const unsigned long pgoff, const unsigned long flags)
{
struct kbase_file *const kfile = filp->private_data;
struct kbase_context *const kctx =
kbase_file_get_kctx_if_setup_complete(kfile);
if (unlikely(!kctx))
return -EPERM;
return kbase_context_get_unmapped_area(kctx, addr, len, pgoff, flags);
}
static const struct file_operations kbase_fops = {
.owner = THIS_MODULE,
.open = kbase_open,
.release = kbase_release,
.read = kbase_read,
.poll = kbase_poll,
.unlocked_ioctl = kbase_ioctl,
.compat_ioctl = kbase_ioctl,
.mmap = kbase_mmap,
.check_flags = kbase_check_flags,
.get_unmapped_area = kbase_get_unmapped_area,
};
/**
* power_policy_show - Show callback for the power_policy sysfs file.
*
* @dev: The device this sysfs file is for
* @attr: The attributes of the sysfs file
* @buf: The output buffer for the sysfs file contents
*
* This function is called to get the contents of the power_policy sysfs
* file. This is a list of the available policies with the currently active one
* surrounded by square brackets.
*
* Return: The number of bytes output to @buf.
*/
static ssize_t power_policy_show(struct device *dev, struct device_attribute *attr, char *const buf)
{
struct kbase_device *kbdev;
const struct kbase_pm_policy *current_policy;
const struct kbase_pm_policy *const *policy_list;
int policy_count;
int i;
ssize_t ret = 0;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
current_policy = kbase_pm_get_policy(kbdev);
policy_count = kbase_pm_list_policies(kbdev, &policy_list);
for (i = 0; i < policy_count && ret < PAGE_SIZE; i++) {
if (policy_list[i] == current_policy)
ret += scnprintf(buf + ret, PAGE_SIZE - ret, "[%s] ", policy_list[i]->name);
else
ret += scnprintf(buf + ret, PAGE_SIZE - ret, "%s ", policy_list[i]->name);
}
if (ret < PAGE_SIZE - 1) {
ret += scnprintf(buf + ret, PAGE_SIZE - ret, "\n");
} else {
buf[PAGE_SIZE - 2] = '\n';
buf[PAGE_SIZE - 1] = '\0';
ret = PAGE_SIZE - 1;
}
return ret;
}
/**
* power_policy_store - Store callback for the power_policy sysfs file.
*
* @dev: The device with sysfs file is for
* @attr: The attributes of the sysfs file
* @buf: The value written to the sysfs file
* @count: The number of bytes to write to the sysfs file
*
* This function is called when the power_policy sysfs file is written to.
* It matches the requested policy against the available policies and if a
* matching policy is found calls kbase_pm_set_policy() to change the
* policy.
*
* Return: @count if the function succeeded. An error code on failure.
*/
static ssize_t power_policy_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
struct kbase_device *kbdev;
const struct kbase_pm_policy *new_policy = NULL;
const struct kbase_pm_policy *const *policy_list;
int policy_count;
int i;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
policy_count = kbase_pm_list_policies(kbdev, &policy_list);
for (i = 0; i < policy_count; i++) {
if (sysfs_streq(policy_list[i]->name, buf)) {
new_policy = policy_list[i];
break;
}
}
if (!new_policy) {
dev_err(dev, "power_policy: policy not found\n");
return -EINVAL;
}
kbase_pm_set_policy(kbdev, new_policy);
return count;
}
/*
* The sysfs file power_policy.
*
* This is used for obtaining information about the available policies,
* determining which policy is currently active, and changing the active
* policy.
*/
static DEVICE_ATTR_RW(power_policy);
/*
* core_mask_show - Show callback for the core_mask sysfs file.
*
* @dev: The device this sysfs file is for
* @attr: The attributes of the sysfs file
* @buf: The output buffer for the sysfs file contents
*
* This function is called to get the contents of the core_mask sysfs file.
*
* Return: The number of bytes output to @buf.
*/
static ssize_t core_mask_show(struct device *dev, struct device_attribute *attr, char * const buf)
{
struct kbase_device *kbdev;
unsigned long flags;
ssize_t ret = 0;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
spin_lock_irqsave(&kbdev->hwaccess_lock, flags);
#if MALI_USE_CSF
ret += scnprintf(buf + ret, PAGE_SIZE - ret,
"Current debug core mask : 0x%llX\n",
kbdev->pm.debug_core_mask);
ret += scnprintf(buf + ret, PAGE_SIZE - ret,
"Current desired core mask : 0x%llX\n",
kbase_pm_ca_get_core_mask(kbdev));
ret += scnprintf(buf + ret, PAGE_SIZE - ret,
"Current in use core mask : 0x%llX\n",
kbdev->pm.backend.shaders_avail);
#else
ret += scnprintf(buf + ret, PAGE_SIZE - ret,
"Current core mask (JS0) : 0x%llX\n",
kbdev->pm.debug_core_mask[0]);
ret += scnprintf(buf + ret, PAGE_SIZE - ret,
"Current core mask (JS1) : 0x%llX\n",
kbdev->pm.debug_core_mask[1]);
ret += scnprintf(buf + ret, PAGE_SIZE - ret,
"Current core mask (JS2) : 0x%llX\n",
kbdev->pm.debug_core_mask[2]);
#endif /* MALI_USE_CSF */
ret += scnprintf(buf + ret, PAGE_SIZE - ret,
"Available core mask : 0x%llX\n",
kbdev->gpu_props.props.raw_props.shader_present);
spin_unlock_irqrestore(&kbdev->hwaccess_lock, flags);
return ret;
}
/**
* core_mask_store - Store callback for the core_mask sysfs file.
*
* @dev: The device with sysfs file is for
* @attr: The attributes of the sysfs file
* @buf: The value written to the sysfs file
* @count: The number of bytes to write to the sysfs file
*
* This function is called when the core_mask sysfs file is written to.
*
* Return: @count if the function succeeded. An error code on failure.
*/
static ssize_t core_mask_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
struct kbase_device *kbdev;
#if MALI_USE_CSF
u64 new_core_mask;
#else
u64 new_core_mask[3];
u64 group0_core_mask;
int i;
#endif /* MALI_USE_CSF */
int items;
ssize_t err = count;
unsigned long flags;
u64 shader_present;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
#if MALI_USE_CSF
items = sscanf(buf, "%llx", &new_core_mask);
if (items != 1) {
dev_err(kbdev->dev,
"Couldn't process core mask write operation.\n"
"Use format <core_mask>\n");
err = -EINVAL;
goto end;
}
#else
items = sscanf(buf, "%llx %llx %llx",
&new_core_mask[0], &new_core_mask[1],
&new_core_mask[2]);
if (items != 1 && items != 3) {
dev_err(kbdev->dev, "Couldn't process core mask write operation.\n"
"Use format <core_mask>\n"
"or <core_mask_js0> <core_mask_js1> <core_mask_js2>\n");
err = -EINVAL;
goto end;
}
if (items == 1)
new_core_mask[1] = new_core_mask[2] = new_core_mask[0];
#endif
mutex_lock(&kbdev->pm.lock);
spin_lock_irqsave(&kbdev->hwaccess_lock, flags);
shader_present = kbdev->gpu_props.props.raw_props.shader_present;
#if MALI_USE_CSF
if ((new_core_mask & shader_present) != new_core_mask) {
dev_err(dev,
"Invalid core mask 0x%llX: Includes non-existent cores (present = 0x%llX)",
new_core_mask, shader_present);
err = -EINVAL;
goto unlock;
} else if (!(new_core_mask & shader_present &
kbdev->pm.backend.ca_cores_enabled)) {
dev_err(dev,
"Invalid core mask 0x%llX: No intersection with currently available cores (present = 0x%llX, CA enabled = 0x%llX\n",
new_core_mask,
kbdev->gpu_props.props.raw_props.shader_present,
kbdev->pm.backend.ca_cores_enabled);
err = -EINVAL;
goto unlock;
}
if (kbdev->pm.debug_core_mask != new_core_mask)
kbase_pm_set_debug_core_mask(kbdev, new_core_mask);
#else
group0_core_mask = kbdev->gpu_props.props.coherency_info.group[0].core_mask;
for (i = 0; i < 3; ++i) {
if ((new_core_mask[i] & shader_present) != new_core_mask[i]) {
dev_err(dev, "Invalid core mask 0x%llX for JS %d: Includes non-existent cores (present = 0x%llX)",
new_core_mask[i], i, shader_present);
err = -EINVAL;
goto unlock;
} else if (!(new_core_mask[i] & shader_present & kbdev->pm.backend.ca_cores_enabled)) {
dev_err(dev, "Invalid core mask 0x%llX for JS %d: No intersection with currently available cores (present = 0x%llX, CA enabled = 0x%llX\n",
new_core_mask[i], i,
kbdev->gpu_props.props.raw_props.shader_present,
kbdev->pm.backend.ca_cores_enabled);
err = -EINVAL;
goto unlock;
} else if (!(new_core_mask[i] & group0_core_mask)) {
dev_err(dev, "Invalid core mask 0x%llX for JS %d: No intersection with group 0 core mask 0x%llX\n",
new_core_mask[i], i, group0_core_mask);
err = -EINVAL;
goto unlock;
} else if (!(new_core_mask[i] & kbdev->gpu_props.curr_config.shader_present)) {
dev_err(dev, "Invalid core mask 0x%llX for JS %d: No intersection with current core mask 0x%llX\n",
new_core_mask[i], i, kbdev->gpu_props.curr_config.shader_present);
err = -EINVAL;
goto unlock;
}
}
if (kbdev->pm.debug_core_mask[0] != new_core_mask[0] ||
kbdev->pm.debug_core_mask[1] !=
new_core_mask[1] ||
kbdev->pm.debug_core_mask[2] !=
new_core_mask[2]) {
kbase_pm_set_debug_core_mask(kbdev, new_core_mask[0],
new_core_mask[1], new_core_mask[2]);
}
#endif /* MALI_USE_CSF */
unlock:
spin_unlock_irqrestore(&kbdev->hwaccess_lock, flags);
mutex_unlock(&kbdev->pm.lock);
end:
return err;
}
/*
* The sysfs file core_mask.
*
* This is used to restrict shader core availability for debugging purposes.
* Reading it will show the current core mask and the mask of cores available.
* Writing to it will set the current core mask.
*/
static DEVICE_ATTR_RW(core_mask);
#if !MALI_USE_CSF
/**
* soft_job_timeout_store - Store callback for the soft_job_timeout sysfs
* file.
*
* @dev: The device this sysfs file is for.
* @attr: The attributes of the sysfs file.
* @buf: The value written to the sysfs file.
* @count: The number of bytes to write to the sysfs file.
*
* This allows setting the timeout for software jobs. Waiting soft event wait
* jobs will be cancelled after this period expires, while soft fence wait jobs
* will print debug information if the fence debug feature is enabled.
*
* This is expressed in milliseconds.
*
* Return: count if the function succeeded. An error code on failure.
*/
static ssize_t soft_job_timeout_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct kbase_device *kbdev;
int soft_job_timeout_ms;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
if ((kstrtoint(buf, 0, &soft_job_timeout_ms) != 0) ||
(soft_job_timeout_ms <= 0))
return -EINVAL;
atomic_set(&kbdev->js_data.soft_job_timeout_ms,
soft_job_timeout_ms);
return count;
}
/**
* soft_job_timeout_show - Show callback for the soft_job_timeout sysfs
* file.
*
* @dev: The device this sysfs file is for.
* @attr: The attributes of the sysfs file.
* @buf: The output buffer for the sysfs file contents.
*
* This will return the timeout for the software jobs.
*
* Return: The number of bytes output to buf.
*/
static ssize_t soft_job_timeout_show(struct device *dev,
struct device_attribute *attr,
char * const buf)
{
struct kbase_device *kbdev;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
return scnprintf(buf, PAGE_SIZE, "%i\n",
atomic_read(&kbdev->js_data.soft_job_timeout_ms));
}
static DEVICE_ATTR_RW(soft_job_timeout);
static u32 timeout_ms_to_ticks(struct kbase_device *kbdev, long timeout_ms,
int default_ticks, u32 old_ticks)
{
if (timeout_ms > 0) {
u64 ticks = timeout_ms * 1000000ULL;
do_div(ticks, kbdev->js_data.scheduling_period_ns);
if (!ticks)
return 1;
return ticks;
} else if (timeout_ms < 0) {
return default_ticks;
} else {
return old_ticks;
}
}
/**
* js_timeouts_store - Store callback for the js_timeouts sysfs file.
*
* @dev: The device with sysfs file is for
* @attr: The attributes of the sysfs file
* @buf: The value written to the sysfs file
* @count: The number of bytes to write to the sysfs file
*
* This function is called to get the contents of the js_timeouts sysfs
* file. This file contains five values separated by whitespace. The values
* are basically the same as %JS_SOFT_STOP_TICKS, %JS_HARD_STOP_TICKS_SS,
* %JS_HARD_STOP_TICKS_DUMPING, %JS_RESET_TICKS_SS, %JS_RESET_TICKS_DUMPING
* configuration values (in that order), with the difference that the js_timeout
* values are expressed in MILLISECONDS.
*
* The js_timeouts sysfile file allows the current values in
* use by the job scheduler to get override. Note that a value needs to
* be other than 0 for it to override the current job scheduler value.
*
* Return: @count if the function succeeded. An error code on failure.
*/
static ssize_t js_timeouts_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
struct kbase_device *kbdev;
int items;
long js_soft_stop_ms;
long js_soft_stop_ms_cl;
long js_hard_stop_ms_ss;
long js_hard_stop_ms_cl;
long js_hard_stop_ms_dumping;
long js_reset_ms_ss;
long js_reset_ms_cl;
long js_reset_ms_dumping;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
items = sscanf(buf, "%ld %ld %ld %ld %ld %ld %ld %ld",
&js_soft_stop_ms, &js_soft_stop_ms_cl,
&js_hard_stop_ms_ss, &js_hard_stop_ms_cl,
&js_hard_stop_ms_dumping, &js_reset_ms_ss,
&js_reset_ms_cl, &js_reset_ms_dumping);
if (items == 8) {
struct kbasep_js_device_data *js_data = &kbdev->js_data;
unsigned long flags;
spin_lock_irqsave(&kbdev->hwaccess_lock, flags);
#define UPDATE_TIMEOUT(ticks_name, ms_name, default) do {\
js_data->ticks_name = timeout_ms_to_ticks(kbdev, ms_name, \
default, js_data->ticks_name); \
dev_dbg(kbdev->dev, "Overriding " #ticks_name \
" with %lu ticks (%lu ms)\n", \
(unsigned long)js_data->ticks_name, \
ms_name); \
} while (0)
UPDATE_TIMEOUT(soft_stop_ticks, js_soft_stop_ms,
DEFAULT_JS_SOFT_STOP_TICKS);
UPDATE_TIMEOUT(soft_stop_ticks_cl, js_soft_stop_ms_cl,
DEFAULT_JS_SOFT_STOP_TICKS_CL);
UPDATE_TIMEOUT(hard_stop_ticks_ss, js_hard_stop_ms_ss,
DEFAULT_JS_HARD_STOP_TICKS_SS);
UPDATE_TIMEOUT(hard_stop_ticks_cl, js_hard_stop_ms_cl,
DEFAULT_JS_HARD_STOP_TICKS_CL);
UPDATE_TIMEOUT(hard_stop_ticks_dumping,
js_hard_stop_ms_dumping,
DEFAULT_JS_HARD_STOP_TICKS_DUMPING);
UPDATE_TIMEOUT(gpu_reset_ticks_ss, js_reset_ms_ss,
DEFAULT_JS_RESET_TICKS_SS);
UPDATE_TIMEOUT(gpu_reset_ticks_cl, js_reset_ms_cl,
DEFAULT_JS_RESET_TICKS_CL);
UPDATE_TIMEOUT(gpu_reset_ticks_dumping, js_reset_ms_dumping,
DEFAULT_JS_RESET_TICKS_DUMPING);
kbase_js_set_timeouts(kbdev);
spin_unlock_irqrestore(&kbdev->hwaccess_lock, flags);
return count;
}
dev_err(kbdev->dev, "Couldn't process js_timeouts write operation.\n"
"Use format <soft_stop_ms> <soft_stop_ms_cl> <hard_stop_ms_ss> <hard_stop_ms_cl> <hard_stop_ms_dumping> <reset_ms_ss> <reset_ms_cl> <reset_ms_dumping>\n"
"Write 0 for no change, -1 to restore default timeout\n");
return -EINVAL;
}
static unsigned long get_js_timeout_in_ms(
u32 scheduling_period_ns,
u32 ticks)
{
u64 ms = (u64)ticks * scheduling_period_ns;
do_div(ms, 1000000UL);
return ms;
}
/**
* js_timeouts_show - Show callback for the js_timeouts sysfs file.
*
* @dev: The device this sysfs file is for
* @attr: The attributes of the sysfs file
* @buf: The output buffer for the sysfs file contents
*
* This function is called to get the contents of the js_timeouts sysfs
* file. It returns the last set values written to the js_timeouts sysfs file.
* If the file didn't get written yet, the values will be current setting in
* use.
*
* Return: The number of bytes output to @buf.
*/
static ssize_t js_timeouts_show(struct device *dev, struct device_attribute *attr, char * const buf)
{
struct kbase_device *kbdev;
ssize_t ret;
unsigned long js_soft_stop_ms;
unsigned long js_soft_stop_ms_cl;
unsigned long js_hard_stop_ms_ss;
unsigned long js_hard_stop_ms_cl;
unsigned long js_hard_stop_ms_dumping;
unsigned long js_reset_ms_ss;
unsigned long js_reset_ms_cl;
unsigned long js_reset_ms_dumping;
u32 scheduling_period_ns;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
scheduling_period_ns = kbdev->js_data.scheduling_period_ns;
#define GET_TIMEOUT(name) get_js_timeout_in_ms(\
scheduling_period_ns, \
kbdev->js_data.name)
js_soft_stop_ms = GET_TIMEOUT(soft_stop_ticks);
js_soft_stop_ms_cl = GET_TIMEOUT(soft_stop_ticks_cl);
js_hard_stop_ms_ss = GET_TIMEOUT(hard_stop_ticks_ss);
js_hard_stop_ms_cl = GET_TIMEOUT(hard_stop_ticks_cl);
js_hard_stop_ms_dumping = GET_TIMEOUT(hard_stop_ticks_dumping);
js_reset_ms_ss = GET_TIMEOUT(gpu_reset_ticks_ss);
js_reset_ms_cl = GET_TIMEOUT(gpu_reset_ticks_cl);
js_reset_ms_dumping = GET_TIMEOUT(gpu_reset_ticks_dumping);
#undef GET_TIMEOUT
ret = scnprintf(buf, PAGE_SIZE, "%lu %lu %lu %lu %lu %lu %lu %lu\n",
js_soft_stop_ms, js_soft_stop_ms_cl,
js_hard_stop_ms_ss, js_hard_stop_ms_cl,
js_hard_stop_ms_dumping, js_reset_ms_ss,
js_reset_ms_cl, js_reset_ms_dumping);
if (ret >= PAGE_SIZE) {
buf[PAGE_SIZE - 2] = '\n';
buf[PAGE_SIZE - 1] = '\0';
ret = PAGE_SIZE - 1;
}
return ret;
}
/*
* The sysfs file js_timeouts.
*
* This is used to override the current job scheduler values for
* JS_STOP_STOP_TICKS_SS
* JS_STOP_STOP_TICKS_CL
* JS_HARD_STOP_TICKS_SS
* JS_HARD_STOP_TICKS_CL
* JS_HARD_STOP_TICKS_DUMPING
* JS_RESET_TICKS_SS
* JS_RESET_TICKS_CL
* JS_RESET_TICKS_DUMPING.
*/
static DEVICE_ATTR_RW(js_timeouts);
static u32 get_new_js_timeout(
u32 old_period,
u32 old_ticks,
u32 new_scheduling_period_ns)
{
u64 ticks = (u64)old_period * (u64)old_ticks;
do_div(ticks, new_scheduling_period_ns);
return ticks?ticks:1;
}
/**
* js_scheduling_period_store - Store callback for the js_scheduling_period sysfs
* file
* @dev: The device the sysfs file is for
* @attr: The attributes of the sysfs file
* @buf: The value written to the sysfs file
* @count: The number of bytes to write to the sysfs file
*
* This function is called when the js_scheduling_period sysfs file is written
* to. It checks the data written, and if valid updates the js_scheduling_period
* value
*
* Return: @count if the function succeeded. An error code on failure.
*/
static ssize_t js_scheduling_period_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct kbase_device *kbdev;
int ret;
unsigned int js_scheduling_period;
u32 new_scheduling_period_ns;
u32 old_period;
struct kbasep_js_device_data *js_data;
unsigned long flags;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
js_data = &kbdev->js_data;
ret = kstrtouint(buf, 0, &js_scheduling_period);
if (ret || !js_scheduling_period) {
dev_err(kbdev->dev, "Couldn't process js_scheduling_period write operation.\n"
"Use format <js_scheduling_period_ms>\n");
return -EINVAL;
}
new_scheduling_period_ns = js_scheduling_period * 1000000;
/* Update scheduling timeouts */
mutex_lock(&js_data->runpool_mutex);
spin_lock_irqsave(&kbdev->hwaccess_lock, flags);
/* If no contexts have been scheduled since js_timeouts was last written
* to, the new timeouts might not have been latched yet. So check if an
* update is pending and use the new values if necessary.
*/
/* Use previous 'new' scheduling period as a base if present. */
old_period = js_data->scheduling_period_ns;
#define SET_TIMEOUT(name) \
(js_data->name = get_new_js_timeout(\
old_period, \
kbdev->js_data.name, \
new_scheduling_period_ns))
SET_TIMEOUT(soft_stop_ticks);
SET_TIMEOUT(soft_stop_ticks_cl);
SET_TIMEOUT(hard_stop_ticks_ss);
SET_TIMEOUT(hard_stop_ticks_cl);
SET_TIMEOUT(hard_stop_ticks_dumping);
SET_TIMEOUT(gpu_reset_ticks_ss);
SET_TIMEOUT(gpu_reset_ticks_cl);
SET_TIMEOUT(gpu_reset_ticks_dumping);
#undef SET_TIMEOUT
js_data->scheduling_period_ns = new_scheduling_period_ns;
kbase_js_set_timeouts(kbdev);
spin_unlock_irqrestore(&kbdev->hwaccess_lock, flags);
mutex_unlock(&js_data->runpool_mutex);
dev_dbg(kbdev->dev, "JS scheduling period: %dms\n",
js_scheduling_period);
return count;
}
/**
* js_scheduling_period_show - Show callback for the js_scheduling_period sysfs
* entry.
* @dev: The device this sysfs file is for.
* @attr: The attributes of the sysfs file.
* @buf: The output buffer to receive the GPU information.
*
* This function is called to get the current period used for the JS scheduling
* period.
*
* Return: The number of bytes output to @buf.
*/
static ssize_t js_scheduling_period_show(struct device *dev,
struct device_attribute *attr, char * const buf)
{
struct kbase_device *kbdev;
u32 period;
ssize_t ret;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
period = kbdev->js_data.scheduling_period_ns;
ret = scnprintf(buf, PAGE_SIZE, "%d\n",
period / 1000000);
return ret;
}
static DEVICE_ATTR_RW(js_scheduling_period);
#ifdef CONFIG_MALI_DEBUG
static ssize_t js_softstop_always_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct kbase_device *kbdev;
int ret;
int softstop_always;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
ret = kstrtoint(buf, 0, &softstop_always);
if (ret || ((softstop_always != 0) && (softstop_always != 1))) {
dev_err(kbdev->dev, "Couldn't process js_softstop_always write operation.\n"
"Use format <soft_stop_always>\n");
return -EINVAL;
}
kbdev->js_data.softstop_always = (bool) softstop_always;
dev_dbg(kbdev->dev, "Support for softstop on a single context: %s\n",
(kbdev->js_data.softstop_always) ?
"Enabled" : "Disabled");
return count;
}
static ssize_t js_softstop_always_show(struct device *dev,
struct device_attribute *attr, char * const buf)
{
struct kbase_device *kbdev;
ssize_t ret;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
ret = scnprintf(buf, PAGE_SIZE, "%d\n", kbdev->js_data.softstop_always);
if (ret >= PAGE_SIZE) {
buf[PAGE_SIZE - 2] = '\n';
buf[PAGE_SIZE - 1] = '\0';
ret = PAGE_SIZE - 1;
}
return ret;
}
/*
* By default, soft-stops are disabled when only a single context is present.
* The ability to enable soft-stop when only a single context is present can be
* used for debug and unit-testing purposes.
* (see CL t6xx_stress_1 unit-test as an example whereby this feature is used.)
*/
static DEVICE_ATTR_RW(js_softstop_always);
#endif /* CONFIG_MALI_DEBUG */
#endif /* !MALI_USE_CSF */
#ifdef CONFIG_MALI_DEBUG
typedef void kbasep_debug_command_func(struct kbase_device *);
enum kbasep_debug_command_code {
KBASEP_DEBUG_COMMAND_DUMPTRACE,
/* This must be the last enum */
KBASEP_DEBUG_COMMAND_COUNT
};
struct kbasep_debug_command {
char *str;
kbasep_debug_command_func *func;
};
static void kbasep_ktrace_dump_wrapper(struct kbase_device *kbdev)
{
KBASE_KTRACE_DUMP(kbdev);
}
/* Debug commands supported by the driver */
static const struct kbasep_debug_command debug_commands[] = {
{
.str = "dumptrace",
.func = &kbasep_ktrace_dump_wrapper,
}
};
/**
* debug_command_show - Show callback for the debug_command sysfs file.
*
* @dev: The device this sysfs file is for
* @attr: The attributes of the sysfs file
* @buf: The output buffer for the sysfs file contents
*
* This function is called to get the contents of the debug_command sysfs
* file. This is a list of the available debug commands, separated by newlines.
*
* Return: The number of bytes output to @buf.
*/
static ssize_t debug_command_show(struct device *dev, struct device_attribute *attr, char * const buf)
{
struct kbase_device *kbdev;
int i;
ssize_t ret = 0;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
for (i = 0; i < KBASEP_DEBUG_COMMAND_COUNT && ret < PAGE_SIZE; i++)
ret += scnprintf(buf + ret, PAGE_SIZE - ret, "%s\n", debug_commands[i].str);
if (ret >= PAGE_SIZE) {
buf[PAGE_SIZE - 2] = '\n';
buf[PAGE_SIZE - 1] = '\0';
ret = PAGE_SIZE - 1;
}
return ret;
}
/**
* debug_command_store - Store callback for the debug_command sysfs file.
*
* @dev: The device with sysfs file is for
* @attr: The attributes of the sysfs file
* @buf: The value written to the sysfs file
* @count: The number of bytes written to the sysfs file
*
* This function is called when the debug_command sysfs file is written to.
* It matches the requested command against the available commands, and if
* a matching command is found calls the associated function from
* @debug_commands to issue the command.
*
* Return: @count if the function succeeded. An error code on failure.
*/
static ssize_t debug_command_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
struct kbase_device *kbdev;
int i;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
for (i = 0; i < KBASEP_DEBUG_COMMAND_COUNT; i++) {
if (sysfs_streq(debug_commands[i].str, buf)) {
debug_commands[i].func(kbdev);
return count;
}
}
/* Debug Command not found */
dev_err(dev, "debug_command: command not known\n");
return -EINVAL;
}
/* The sysfs file debug_command.
*
* This is used to issue general debug commands to the device driver.
* Reading it will produce a list of debug commands, separated by newlines.
* Writing to it with one of those commands will issue said command.
*/
static DEVICE_ATTR_RW(debug_command);
#endif /* CONFIG_MALI_DEBUG */
/**
* gpuinfo_show - Show callback for the gpuinfo sysfs entry.
* @dev: The device this sysfs file is for.
* @attr: The attributes of the sysfs file.
* @buf: The output buffer to receive the GPU information.
*
* This function is called to get a description of the present Mali
* GPU via the gpuinfo sysfs entry. This includes the GPU family, the
* number of cores, the hardware version and the raw product id. For
* example
*
* Mali-T60x MP4 r0p0 0x6956
*
* Return: The number of bytes output to @buf.
*/
static ssize_t gpuinfo_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
static const struct gpu_product_id_name {
unsigned int id;
char *name;
} gpu_product_id_names[] = {
{ .id = GPU_ID2_PRODUCT_TMIX >> KBASE_GPU_ID_VERSION_PRODUCT_ID_SHIFT,
.name = "Mali-G71" },
{ .id = GPU_ID2_PRODUCT_THEX >> KBASE_GPU_ID_VERSION_PRODUCT_ID_SHIFT,
.name = "Mali-G72" },
{ .id = GPU_ID2_PRODUCT_TSIX >> KBASE_GPU_ID_VERSION_PRODUCT_ID_SHIFT,
.name = "Mali-G51" },
{ .id = GPU_ID2_PRODUCT_TNOX >> KBASE_GPU_ID_VERSION_PRODUCT_ID_SHIFT,
.name = "Mali-G76" },
{ .id = GPU_ID2_PRODUCT_TDVX >> KBASE_GPU_ID_VERSION_PRODUCT_ID_SHIFT,
.name = "Mali-G31" },
{ .id = GPU_ID2_PRODUCT_TGOX >> KBASE_GPU_ID_VERSION_PRODUCT_ID_SHIFT,
.name = "Mali-G52" },
{ .id = GPU_ID2_PRODUCT_TTRX >> KBASE_GPU_ID_VERSION_PRODUCT_ID_SHIFT,
.name = "Mali-G77" },
{ .id = GPU_ID2_PRODUCT_TBEX >> KBASE_GPU_ID_VERSION_PRODUCT_ID_SHIFT,
.name = "Mali-G78" },
{ .id = GPU_ID2_PRODUCT_TBAX >> KBASE_GPU_ID_VERSION_PRODUCT_ID_SHIFT,
.name = "Mali-G78AE" },
{ .id = GPU_ID2_PRODUCT_LBEX >> KBASE_GPU_ID_VERSION_PRODUCT_ID_SHIFT,
.name = "Mali-G68" },
{ .id = GPU_ID2_PRODUCT_TNAX >> KBASE_GPU_ID_VERSION_PRODUCT_ID_SHIFT,
.name = "Mali-G57" },
{ .id = GPU_ID2_PRODUCT_TODX >> KBASE_GPU_ID_VERSION_PRODUCT_ID_SHIFT,
.name = "Mali-G710" },
{ .id = GPU_ID2_PRODUCT_LODX >> KBASE_GPU_ID_VERSION_PRODUCT_ID_SHIFT,
.name = "Mali-G610" },
{ .id = GPU_ID2_PRODUCT_TGRX >> KBASE_GPU_ID_VERSION_PRODUCT_ID_SHIFT,
.name = "Mali-G510" },
{ .id = GPU_ID2_PRODUCT_TVAX >> KBASE_GPU_ID_VERSION_PRODUCT_ID_SHIFT,
.name = "Mali-G310" },
{ .id = GPU_ID2_PRODUCT_TTUX >> KBASE_GPU_ID_VERSION_PRODUCT_ID_SHIFT,
.name = "Mali-TTUX" },
{ .id = GPU_ID2_PRODUCT_LTUX >> KBASE_GPU_ID_VERSION_PRODUCT_ID_SHIFT,
.name = "Mali-LTUX" },
};
const char *product_name = "(Unknown Mali GPU)";
struct kbase_device *kbdev;
u32 gpu_id;
unsigned int product_id, product_id_mask;
unsigned int i;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
gpu_id = kbdev->gpu_props.props.raw_props.gpu_id;
product_id = gpu_id >> KBASE_GPU_ID_VERSION_PRODUCT_ID_SHIFT;
product_id_mask = GPU_ID2_PRODUCT_MODEL >> KBASE_GPU_ID_VERSION_PRODUCT_ID_SHIFT;
for (i = 0; i < ARRAY_SIZE(gpu_product_id_names); ++i) {
const struct gpu_product_id_name *p = &gpu_product_id_names[i];
if ((p->id & product_id_mask) ==
(product_id & product_id_mask)) {
product_name = p->name;
break;
}
}
return scnprintf(buf, PAGE_SIZE, "%s %d cores r%dp%d 0x%04X\n", product_name,
kbdev->gpu_props.num_cores,
(gpu_id & GPU_ID_VERSION_MAJOR) >> KBASE_GPU_ID_VERSION_MAJOR_SHIFT,
(gpu_id & GPU_ID_VERSION_MINOR) >> KBASE_GPU_ID_VERSION_MINOR_SHIFT,
product_id);
}
static DEVICE_ATTR_RO(gpuinfo);
/**
* dvfs_period_store - Store callback for the dvfs_period sysfs file.
* @dev: The device with sysfs file is for
* @attr: The attributes of the sysfs file
* @buf: The value written to the sysfs file
* @count: The number of bytes written to the sysfs file
*
* This function is called when the dvfs_period sysfs file is written to. It
* checks the data written, and if valid updates the DVFS period variable,
*
* Return: @count if the function succeeded. An error code on failure.
*/
static ssize_t dvfs_period_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct kbase_device *kbdev;
int ret;
int dvfs_period;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
ret = kstrtoint(buf, 0, &dvfs_period);
if (ret || dvfs_period <= 0) {
dev_err(kbdev->dev, "Couldn't process dvfs_period write operation.\n"
"Use format <dvfs_period_ms>\n");
return -EINVAL;
}
kbdev->pm.dvfs_period = dvfs_period;
dev_dbg(kbdev->dev, "DVFS period: %dms\n", dvfs_period);
return count;
}
/**
* dvfs_period_show - Show callback for the dvfs_period sysfs entry.
* @dev: The device this sysfs file is for.
* @attr: The attributes of the sysfs file.
* @buf: The output buffer to receive the GPU information.
*
* This function is called to get the current period used for the DVFS sample
* timer.
*
* Return: The number of bytes output to @buf.
*/
static ssize_t dvfs_period_show(struct device *dev,
struct device_attribute *attr, char * const buf)
{
struct kbase_device *kbdev;
ssize_t ret;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
ret = scnprintf(buf, PAGE_SIZE, "%d\n", kbdev->pm.dvfs_period);
return ret;
}
static DEVICE_ATTR_RW(dvfs_period);
/**
* pm_poweroff_store - Store callback for the pm_poweroff sysfs file.
* @dev: The device with sysfs file is for
* @attr: The attributes of the sysfs file
* @buf: The value written to the sysfs file
* @count: The number of bytes written to the sysfs file
*
* This function is called when the pm_poweroff sysfs file is written to.
*
* This file contains three values separated by whitespace. The values
* are gpu_poweroff_time (the period of the poweroff timer, in ns),
* poweroff_shader_ticks (the number of poweroff timer ticks before an idle
* shader is powered off), and poweroff_gpu_ticks (the number of poweroff timer
* ticks before the GPU is powered off), in that order.
*
* Return: @count if the function succeeded. An error code on failure.
*/
static ssize_t pm_poweroff_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct kbase_device *kbdev;
struct kbasep_pm_tick_timer_state *stt;
int items;
u64 gpu_poweroff_time;
unsigned int poweroff_shader_ticks, poweroff_gpu_ticks;
unsigned long flags;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
items = sscanf(buf, "%llu %u %u", &gpu_poweroff_time,
&poweroff_shader_ticks,
&poweroff_gpu_ticks);
if (items != 3) {
dev_err(kbdev->dev, "Couldn't process pm_poweroff write operation.\n"
"Use format <gpu_poweroff_time_ns> <poweroff_shader_ticks> <poweroff_gpu_ticks>\n");
return -EINVAL;
}
spin_lock_irqsave(&kbdev->hwaccess_lock, flags);
stt = &kbdev->pm.backend.shader_tick_timer;
stt->configured_interval = HR_TIMER_DELAY_NSEC(gpu_poweroff_time);
stt->default_ticks = poweroff_shader_ticks;
stt->configured_ticks = stt->default_ticks;
spin_unlock_irqrestore(&kbdev->hwaccess_lock, flags);
if (poweroff_gpu_ticks != 0)
dev_warn(kbdev->dev, "Separate GPU poweroff delay no longer supported.\n");
return count;
}
/**
* pm_poweroff_show - Show callback for the pm_poweroff sysfs entry.
* @dev: The device this sysfs file is for.
* @attr: The attributes of the sysfs file.
* @buf: The output buffer to receive the GPU information.
*
* This function is called to get the current period used for the DVFS sample
* timer.
*
* Return: The number of bytes output to @buf.
*/
static ssize_t pm_poweroff_show(struct device *dev,
struct device_attribute *attr, char * const buf)
{
struct kbase_device *kbdev;
struct kbasep_pm_tick_timer_state *stt;
ssize_t ret;
unsigned long flags;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
spin_lock_irqsave(&kbdev->hwaccess_lock, flags);
stt = &kbdev->pm.backend.shader_tick_timer;
ret = scnprintf(buf, PAGE_SIZE, "%llu %u 0\n",
ktime_to_ns(stt->configured_interval),
stt->default_ticks);
spin_unlock_irqrestore(&kbdev->hwaccess_lock, flags);
return ret;
}
static DEVICE_ATTR_RW(pm_poweroff);
/**
* reset_timeout_store - Store callback for the reset_timeout sysfs file.
* @dev: The device with sysfs file is for
* @attr: The attributes of the sysfs file
* @buf: The value written to the sysfs file
* @count: The number of bytes written to the sysfs file
*
* This function is called when the reset_timeout sysfs file is written to. It
* checks the data written, and if valid updates the reset timeout.
*
* Return: @count if the function succeeded. An error code on failure.
*/
static ssize_t reset_timeout_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct kbase_device *kbdev;
int ret;
int reset_timeout;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
ret = kstrtoint(buf, 0, &reset_timeout);
if (ret || reset_timeout <= 0) {
dev_err(kbdev->dev, "Couldn't process reset_timeout write operation.\n"
"Use format <reset_timeout_ms>\n");
return -EINVAL;
}
kbdev->reset_timeout_ms = reset_timeout;
dev_dbg(kbdev->dev, "Reset timeout: %dms\n", reset_timeout);
return count;
}
/**
* reset_timeout_show - Show callback for the reset_timeout sysfs entry.
* @dev: The device this sysfs file is for.
* @attr: The attributes of the sysfs file.
* @buf: The output buffer to receive the GPU information.
*
* This function is called to get the current reset timeout.
*
* Return: The number of bytes output to @buf.
*/
static ssize_t reset_timeout_show(struct device *dev,
struct device_attribute *attr, char * const buf)
{
struct kbase_device *kbdev;
ssize_t ret;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
ret = scnprintf(buf, PAGE_SIZE, "%d\n", kbdev->reset_timeout_ms);
return ret;
}
static DEVICE_ATTR_RW(reset_timeout);
static ssize_t mem_pool_size_show(struct device *dev,
struct device_attribute *attr, char * const buf)
{
struct kbase_device *const kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
return kbase_debugfs_helper_get_attr_to_string(buf, PAGE_SIZE,
kbdev->mem_pools.small, MEMORY_GROUP_MANAGER_NR_GROUPS,
kbase_mem_pool_debugfs_size);
}
static ssize_t mem_pool_size_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct kbase_device *const kbdev = to_kbase_device(dev);
int err;
if (!kbdev)
return -ENODEV;
err = kbase_debugfs_helper_set_attr_from_string(buf,
kbdev->mem_pools.small, MEMORY_GROUP_MANAGER_NR_GROUPS,
kbase_mem_pool_debugfs_trim);
return err ? err : count;
}
static DEVICE_ATTR_RW(mem_pool_size);
static ssize_t mem_pool_max_size_show(struct device *dev,
struct device_attribute *attr, char * const buf)
{
struct kbase_device *const kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
return kbase_debugfs_helper_get_attr_to_string(buf, PAGE_SIZE,
kbdev->mem_pools.small, MEMORY_GROUP_MANAGER_NR_GROUPS,
kbase_mem_pool_debugfs_max_size);
}
static ssize_t mem_pool_max_size_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct kbase_device *const kbdev = to_kbase_device(dev);
int err;
if (!kbdev)
return -ENODEV;
err = kbase_debugfs_helper_set_attr_from_string(buf,
kbdev->mem_pools.small, MEMORY_GROUP_MANAGER_NR_GROUPS,
kbase_mem_pool_debugfs_set_max_size);
return err ? err : count;
}
static DEVICE_ATTR_RW(mem_pool_max_size);
/**
* lp_mem_pool_size_show - Show size of the large memory pages pool.
* @dev: The device this sysfs file is for.
* @attr: The attributes of the sysfs file.
* @buf: The output buffer to receive the pool size.
*
* This function is called to get the number of large memory pages which currently populate the kbdev pool.
*
* Return: The number of bytes output to @buf.
*/
static ssize_t lp_mem_pool_size_show(struct device *dev,
struct device_attribute *attr, char * const buf)
{
struct kbase_device *const kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
return kbase_debugfs_helper_get_attr_to_string(buf, PAGE_SIZE,
kbdev->mem_pools.large, MEMORY_GROUP_MANAGER_NR_GROUPS,
kbase_mem_pool_debugfs_size);
}
/**
* lp_mem_pool_size_store - Set size of the large memory pages pool.
* @dev: The device this sysfs file is for.
* @attr: The attributes of the sysfs file.
* @buf: The value written to the sysfs file.
* @count: The number of bytes written to the sysfs file.
*
* This function is called to set the number of large memory pages which should populate the kbdev pool.
* This may cause existing pages to be removed from the pool, or new pages to be created and then added to the pool.
*
* Return: @count if the function succeeded. An error code on failure.
*/
static ssize_t lp_mem_pool_size_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct kbase_device *const kbdev = to_kbase_device(dev);
int err;
if (!kbdev)
return -ENODEV;
err = kbase_debugfs_helper_set_attr_from_string(buf,
kbdev->mem_pools.large, MEMORY_GROUP_MANAGER_NR_GROUPS,
kbase_mem_pool_debugfs_trim);
return err ? err : count;
}
static DEVICE_ATTR_RW(lp_mem_pool_size);
/**
* lp_mem_pool_max_size_show - Show maximum size of the large memory pages pool.
* @dev: The device this sysfs file is for.
* @attr: The attributes of the sysfs file.
* @buf: The output buffer to receive the pool size.
*
* This function is called to get the maximum number of large memory pages that the kbdev pool can possibly contain.
*
* Return: The number of bytes output to @buf.
*/
static ssize_t lp_mem_pool_max_size_show(struct device *dev,
struct device_attribute *attr, char * const buf)
{
struct kbase_device *const kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
return kbase_debugfs_helper_get_attr_to_string(buf, PAGE_SIZE,
kbdev->mem_pools.large, MEMORY_GROUP_MANAGER_NR_GROUPS,
kbase_mem_pool_debugfs_max_size);
}
/**
* lp_mem_pool_max_size_store - Set maximum size of the large memory pages pool.
* @dev: The device this sysfs file is for.
* @attr: The attributes of the sysfs file.
* @buf: The value written to the sysfs file.
* @count: The number of bytes written to the sysfs file.
*
* This function is called to set the maximum number of large memory pages that the kbdev pool can possibly contain.
*
* Return: @count if the function succeeded. An error code on failure.
*/
static ssize_t lp_mem_pool_max_size_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct kbase_device *const kbdev = to_kbase_device(dev);
int err;
if (!kbdev)
return -ENODEV;
err = kbase_debugfs_helper_set_attr_from_string(buf,
kbdev->mem_pools.large, MEMORY_GROUP_MANAGER_NR_GROUPS,
kbase_mem_pool_debugfs_set_max_size);
return err ? err : count;
}
static DEVICE_ATTR_RW(lp_mem_pool_max_size);
/**
* show_simplified_mem_pool_max_size - Show the maximum size for the memory
* pool 0 of small (4KiB) pages.
* @dev: The device this sysfs file is for.
* @attr: The attributes of the sysfs file.
* @buf: The output buffer to receive the max size.
*
* This function is called to get the maximum size for the memory pool 0 of
* small (4KiB) pages. It is assumed that the maximum size value is same for
* all the pools.
*
* Return: The number of bytes output to @buf.
*/
static ssize_t show_simplified_mem_pool_max_size(struct device *dev,
struct device_attribute *attr, char * const buf)
{
struct kbase_device *const kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
return kbase_debugfs_helper_get_attr_to_string(buf, PAGE_SIZE,
kbdev->mem_pools.small, 1, kbase_mem_pool_debugfs_max_size);
}
/**
* set_simplified_mem_pool_max_size - Set the same maximum size for all the
* memory pools of small (4KiB) pages.
* @dev: The device with sysfs file is for
* @attr: The attributes of the sysfs file
* @buf: The value written to the sysfs file
* @count: The number of bytes written to the sysfs file
*
* This function is called to set the same maximum size for all the memory
* pools of small (4KiB) pages.
*
* Return: The number of bytes output to @buf.
*/
static ssize_t set_simplified_mem_pool_max_size(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct kbase_device *const kbdev = to_kbase_device(dev);
unsigned long new_size;
int gid;
int err;
if (!kbdev)
return -ENODEV;
err = kstrtoul(buf, 0, &new_size);
if (err)
return -EINVAL;
for (gid = 0; gid < MEMORY_GROUP_MANAGER_NR_GROUPS; ++gid)
kbase_mem_pool_debugfs_set_max_size(
kbdev->mem_pools.small, gid, (size_t)new_size);
return count;
}
static DEVICE_ATTR(max_size, 0600, show_simplified_mem_pool_max_size,
set_simplified_mem_pool_max_size);
/**
* show_simplified_lp_mem_pool_max_size - Show the maximum size for the memory
* pool 0 of large (2MiB) pages.
* @dev: The device this sysfs file is for.
* @attr: The attributes of the sysfs file.
* @buf: The output buffer to receive the total current pool size.
*
* This function is called to get the maximum size for the memory pool 0 of
* large (2MiB) pages. It is assumed that the maximum size value is same for
* all the pools.
*
* Return: The number of bytes output to @buf.
*/
static ssize_t show_simplified_lp_mem_pool_max_size(struct device *dev,
struct device_attribute *attr, char * const buf)
{
struct kbase_device *const kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
return kbase_debugfs_helper_get_attr_to_string(buf, PAGE_SIZE,
kbdev->mem_pools.large, 1, kbase_mem_pool_debugfs_max_size);
}
/**
* set_simplified_lp_mem_pool_max_size - Set the same maximum size for all the
* memory pools of large (2MiB) pages.
* @dev: The device with sysfs file is for
* @attr: The attributes of the sysfs file
* @buf: The value written to the sysfs file
* @count: The number of bytes written to the sysfs file
*
* This function is called to set the same maximum size for all the memory
* pools of large (2MiB) pages.
*
* Return: The number of bytes output to @buf.
*/
static ssize_t set_simplified_lp_mem_pool_max_size(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct kbase_device *const kbdev = to_kbase_device(dev);
unsigned long new_size;
int gid;
int err;
if (!kbdev)
return -ENODEV;
err = kstrtoul(buf, 0, &new_size);
if (err)
return -EINVAL;
for (gid = 0; gid < MEMORY_GROUP_MANAGER_NR_GROUPS; ++gid)
kbase_mem_pool_debugfs_set_max_size(
kbdev->mem_pools.large, gid, (size_t)new_size);
return count;
}
static DEVICE_ATTR(lp_max_size, 0600, show_simplified_lp_mem_pool_max_size,
set_simplified_lp_mem_pool_max_size);
/**
* show_simplified_ctx_default_max_size - Show the default maximum size for the
* memory pool 0 of small (4KiB) pages.
* @dev: The device this sysfs file is for.
* @attr: The attributes of the sysfs file.
* @buf: The output buffer to receive the pool size.
*
* This function is called to get the default ctx maximum size for the memory
* pool 0 of small (4KiB) pages. It is assumed that maximum size value is same
* for all the pools. The maximum size for the pool of large (2MiB) pages will
* be same as max size of the pool of small (4KiB) pages in terms of bytes.
*
* Return: The number of bytes output to @buf.
*/
static ssize_t show_simplified_ctx_default_max_size(struct device *dev,
struct device_attribute *attr, char * const buf)
{
struct kbase_device *kbdev = to_kbase_device(dev);
size_t max_size;
if (!kbdev)
return -ENODEV;
max_size = kbase_mem_pool_config_debugfs_max_size(
kbdev->mem_pool_defaults.small, 0);
return scnprintf(buf, PAGE_SIZE, "%zu\n", max_size);
}
/**
* set_simplified_ctx_default_max_size - Set the same default maximum size for
* all the pools created for new
* contexts. This covers the pool of
* large pages as well and its max size
* will be same as max size of the pool
* of small pages in terms of bytes.
* @dev: The device this sysfs file is for.
* @attr: The attributes of the sysfs file.
* @buf: The value written to the sysfs file.
* @count: The number of bytes written to the sysfs file.
*
* This function is called to set the same maximum size for all pools created
* for new contexts.
*
* Return: @count if the function succeeded. An error code on failure.
*/
static ssize_t set_simplified_ctx_default_max_size(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct kbase_device *kbdev;
unsigned long new_size;
int err;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
err = kstrtoul(buf, 0, &new_size);
if (err)
return -EINVAL;
kbase_mem_pool_group_config_set_max_size(
&kbdev->mem_pool_defaults, (size_t)new_size);
return count;
}
static DEVICE_ATTR(ctx_default_max_size, 0600,
show_simplified_ctx_default_max_size,
set_simplified_ctx_default_max_size);
#if !MALI_USE_CSF
/**
* js_ctx_scheduling_mode_show - Show callback for js_ctx_scheduling_mode sysfs
* entry.
* @dev: The device this sysfs file is for.
* @attr: The attributes of the sysfs file.
* @buf: The output buffer to receive the context scheduling mode information.
*
* This function is called to get the context scheduling mode being used by JS.
*
* Return: The number of bytes output to @buf.
*/
static ssize_t js_ctx_scheduling_mode_show(struct device *dev,
struct device_attribute *attr, char * const buf)
{
struct kbase_device *kbdev;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
return scnprintf(buf, PAGE_SIZE, "%u\n", kbdev->js_ctx_scheduling_mode);
}
/**
* js_ctx_scheduling_mode_store - Set callback for js_ctx_scheduling_mode sysfs
* entry.
* @dev: The device this sysfs file is for.
* @attr: The attributes of the sysfs file.
* @buf: The value written to the sysfs file.
* @count: The number of bytes written to the sysfs file.
*
* This function is called when the js_ctx_scheduling_mode sysfs file is written
* to. It checks the data written, and if valid updates the ctx scheduling mode
* being by JS.
*
* Return: @count if the function succeeded. An error code on failure.
*/
static ssize_t js_ctx_scheduling_mode_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct kbase_context *kctx;
u32 new_js_ctx_scheduling_mode;
struct kbase_device *kbdev;
unsigned long flags;
int ret;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
ret = kstrtouint(buf, 0, &new_js_ctx_scheduling_mode);
if (ret || new_js_ctx_scheduling_mode >= KBASE_JS_PRIORITY_MODE_COUNT) {
dev_err(kbdev->dev, "Couldn't process js_ctx_scheduling_mode"
" write operation.\n"
"Use format <js_ctx_scheduling_mode>\n");
return -EINVAL;
}
if (new_js_ctx_scheduling_mode == kbdev->js_ctx_scheduling_mode)
return count;
mutex_lock(&kbdev->kctx_list_lock);
spin_lock_irqsave(&kbdev->hwaccess_lock, flags);
/* Update the context priority mode */
kbdev->js_ctx_scheduling_mode = new_js_ctx_scheduling_mode;
/* Adjust priority of all the contexts as per the new mode */
list_for_each_entry(kctx, &kbdev->kctx_list, kctx_list_link)
kbase_js_update_ctx_priority(kctx);
spin_unlock_irqrestore(&kbdev->hwaccess_lock, flags);
mutex_unlock(&kbdev->kctx_list_lock);
dev_dbg(kbdev->dev, "JS ctx scheduling mode: %u\n", new_js_ctx_scheduling_mode);
return count;
}
static DEVICE_ATTR_RW(js_ctx_scheduling_mode);
/* Number of entries in serialize_jobs_settings[] */
#define NR_SERIALIZE_JOBS_SETTINGS 5
/* Maximum string length in serialize_jobs_settings[].name */
#define MAX_SERIALIZE_JOBS_NAME_LEN 16
static struct
{
char *name;
u8 setting;
} serialize_jobs_settings[NR_SERIALIZE_JOBS_SETTINGS] = {
{"none", 0},
{"intra-slot", KBASE_SERIALIZE_INTRA_SLOT},
{"inter-slot", KBASE_SERIALIZE_INTER_SLOT},
{"full", KBASE_SERIALIZE_INTRA_SLOT | KBASE_SERIALIZE_INTER_SLOT},
{"full-reset", KBASE_SERIALIZE_INTRA_SLOT | KBASE_SERIALIZE_INTER_SLOT |
KBASE_SERIALIZE_RESET}
};
/**
* update_serialize_jobs_setting - Update the serialization setting for the
* submission of GPU jobs.
*
* @kbdev: An instance of the GPU platform device, allocated from the probe
* method of the driver.
* @buf: Buffer containing the value written to the sysfs/debugfs file.
* @count: The number of bytes to write to the sysfs/debugfs file.
*
* This function is called when the serialize_jobs sysfs/debugfs file is
* written to. It matches the requested setting against the available settings
* and if a matching setting is found updates kbdev->serialize_jobs.
*
* Return: @count if the function succeeded. An error code on failure.
*/
static ssize_t update_serialize_jobs_setting(struct kbase_device *kbdev,
const char *buf, size_t count)
{
int i;
bool valid = false;
for (i = 0; i < NR_SERIALIZE_JOBS_SETTINGS; i++) {
if (sysfs_streq(serialize_jobs_settings[i].name, buf)) {
kbdev->serialize_jobs =
serialize_jobs_settings[i].setting;
valid = true;
break;
}
}
if (!valid) {
dev_err(kbdev->dev, "serialize_jobs: invalid setting");
return -EINVAL;
}
return count;
}
#if IS_ENABLED(CONFIG_DEBUG_FS)
/**
* kbasep_serialize_jobs_seq_debugfs_show - Show callback for the serialize_jobs
* debugfs file
* @sfile: seq_file pointer
* @data: Private callback data
*
* This function is called to get the contents of the serialize_jobs debugfs
* file. This is a list of the available settings with the currently active one
* surrounded by square brackets.
*
* Return: 0 on success, or an error code on error
*/
static int kbasep_serialize_jobs_seq_debugfs_show(struct seq_file *sfile,
void *data)
{
struct kbase_device *kbdev = sfile->private;
int i;
CSTD_UNUSED(data);
for (i = 0; i < NR_SERIALIZE_JOBS_SETTINGS; i++) {
if (kbdev->serialize_jobs == serialize_jobs_settings[i].setting)
seq_printf(sfile, "[%s] ",
serialize_jobs_settings[i].name);
else
seq_printf(sfile, "%s ",
serialize_jobs_settings[i].name);
}
seq_puts(sfile, "\n");
return 0;
}
/**
* kbasep_serialize_jobs_debugfs_write - Store callback for the serialize_jobs
* debugfs file.
* @file: File pointer
* @ubuf: User buffer containing data to store
* @count: Number of bytes in user buffer
* @ppos: File position
*
* This function is called when the serialize_jobs debugfs file is written to.
* It matches the requested setting against the available settings and if a
* matching setting is found updates kbdev->serialize_jobs.
*
* Return: @count if the function succeeded. An error code on failure.
*/
static ssize_t kbasep_serialize_jobs_debugfs_write(struct file *file,
const char __user *ubuf, size_t count, loff_t *ppos)
{
struct seq_file *s = file->private_data;
struct kbase_device *kbdev = s->private;
char buf[MAX_SERIALIZE_JOBS_NAME_LEN];
CSTD_UNUSED(ppos);
count = min_t(size_t, sizeof(buf) - 1, count);
if (copy_from_user(buf, ubuf, count))
return -EFAULT;
buf[count] = 0;
return update_serialize_jobs_setting(kbdev, buf, count);
}
/**
* kbasep_serialize_jobs_debugfs_open - Open callback for the serialize_jobs
* debugfs file
* @in: inode pointer
* @file: file pointer
*
* Return: Zero on success, error code on failure
*/
static int kbasep_serialize_jobs_debugfs_open(struct inode *in,
struct file *file)
{
return single_open(file, kbasep_serialize_jobs_seq_debugfs_show,
in->i_private);
}
static const struct file_operations kbasep_serialize_jobs_debugfs_fops = {
.owner = THIS_MODULE,
.open = kbasep_serialize_jobs_debugfs_open,
.read = seq_read,
.write = kbasep_serialize_jobs_debugfs_write,
.llseek = seq_lseek,
.release = single_release,
};
#endif /* CONFIG_DEBUG_FS */
/**
* show_serialize_jobs_sysfs - Show callback for serialize_jobs sysfs file.
*
* @dev: The device this sysfs file is for
* @attr: The attributes of the sysfs file
* @buf: The output buffer for the sysfs file contents
*
* This function is called to get the contents of the serialize_jobs sysfs
* file. This is a list of the available settings with the currently active
* one surrounded by square brackets.
*
* Return: The number of bytes output to @buf.
*/
static ssize_t show_serialize_jobs_sysfs(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct kbase_device *kbdev = to_kbase_device(dev);
ssize_t ret = 0;
int i;
for (i = 0; i < NR_SERIALIZE_JOBS_SETTINGS; i++) {
if (kbdev->serialize_jobs ==
serialize_jobs_settings[i].setting)
ret += scnprintf(buf + ret, PAGE_SIZE - ret, "[%s]",
serialize_jobs_settings[i].name);
else
ret += scnprintf(buf + ret, PAGE_SIZE - ret, "%s ",
serialize_jobs_settings[i].name);
}
if (ret < PAGE_SIZE - 1) {
ret += scnprintf(buf + ret, PAGE_SIZE - ret, "\n");
} else {
buf[PAGE_SIZE - 2] = '\n';
buf[PAGE_SIZE - 1] = '\0';
ret = PAGE_SIZE - 1;
}
return ret;
}
/**
* store_serialize_jobs_sysfs - Store callback for serialize_jobs sysfs file.
*
* @dev: The device this sysfs file is for
* @attr: The attributes of the sysfs file
* @buf: The value written to the sysfs file
* @count: The number of bytes to write to the sysfs file
*
* This function is called when the serialize_jobs sysfs file is written to.
* It matches the requested setting against the available settings and if a
* matching setting is found updates kbdev->serialize_jobs.
*
* Return: @count if the function succeeded. An error code on failure.
*/
static ssize_t store_serialize_jobs_sysfs(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
return update_serialize_jobs_setting(to_kbase_device(dev), buf, count);
}
static DEVICE_ATTR(serialize_jobs, 0600, show_serialize_jobs_sysfs,
store_serialize_jobs_sysfs);
#endif /* !MALI_USE_CSF */
static void kbasep_protected_mode_hwcnt_disable_worker(struct work_struct *data)
{
struct kbase_device *kbdev = container_of(data, struct kbase_device,
protected_mode_hwcnt_disable_work);
spinlock_t *backend_lock;
unsigned long flags;
bool do_disable;
#if MALI_USE_CSF
backend_lock = &kbdev->csf.scheduler.interrupt_lock;
#else
backend_lock = &kbdev->hwaccess_lock;
#endif
spin_lock_irqsave(backend_lock, flags);
do_disable = !kbdev->protected_mode_hwcnt_desired &&
!kbdev->protected_mode_hwcnt_disabled;
spin_unlock_irqrestore(backend_lock, flags);
if (!do_disable)
return;
kbase_hwcnt_context_disable(kbdev->hwcnt_gpu_ctx);
spin_lock_irqsave(backend_lock, flags);
do_disable = !kbdev->protected_mode_hwcnt_desired &&
!kbdev->protected_mode_hwcnt_disabled;
if (do_disable) {
/* Protected mode state did not change while we were doing the
* disable, so commit the work we just performed and continue
* the state machine.
*/
kbdev->protected_mode_hwcnt_disabled = true;
#if !MALI_USE_CSF
kbase_backend_slot_update(kbdev);
#endif /* !MALI_USE_CSF */
} else {
/* Protected mode state was updated while we were doing the
* disable, so we need to undo the disable we just performed.
*/
kbase_hwcnt_context_enable(kbdev->hwcnt_gpu_ctx);
}
spin_unlock_irqrestore(backend_lock, flags);
}
#ifndef PLATFORM_PROTECTED_CALLBACKS
static int kbasep_protected_mode_enable(struct protected_mode_device *pdev)
{
struct kbase_device *kbdev = pdev->data;
return kbase_pm_protected_mode_enable(kbdev);
}
static int kbasep_protected_mode_disable(struct protected_mode_device *pdev)
{
struct kbase_device *kbdev = pdev->data;
return kbase_pm_protected_mode_disable(kbdev);
}
static const struct protected_mode_ops kbasep_native_protected_ops = {
.protected_mode_enable = kbasep_protected_mode_enable,
.protected_mode_disable = kbasep_protected_mode_disable
};
#define PLATFORM_PROTECTED_CALLBACKS (&kbasep_native_protected_ops)
#endif /* PLATFORM_PROTECTED_CALLBACKS */
int kbase_protected_mode_init(struct kbase_device *kbdev)
{
/* Use native protected ops */
kbdev->protected_dev = kzalloc(sizeof(*kbdev->protected_dev),
GFP_KERNEL);
if (!kbdev->protected_dev)
return -ENOMEM;
kbdev->protected_dev->data = kbdev;
kbdev->protected_ops = PLATFORM_PROTECTED_CALLBACKS;
INIT_WORK(&kbdev->protected_mode_hwcnt_disable_work,
kbasep_protected_mode_hwcnt_disable_worker);
kbdev->protected_mode_hwcnt_desired = true;
kbdev->protected_mode_hwcnt_disabled = false;
return 0;
}
void kbase_protected_mode_term(struct kbase_device *kbdev)
{
cancel_work_sync(&kbdev->protected_mode_hwcnt_disable_work);
kfree(kbdev->protected_dev);
}
#if IS_ENABLED(CONFIG_MALI_NO_MALI)
static int kbase_common_reg_map(struct kbase_device *kbdev)
{
return 0;
}
static void kbase_common_reg_unmap(struct kbase_device * const kbdev)
{
}
#else /* CONFIG_MALI_NO_MALI */
static int kbase_common_reg_map(struct kbase_device *kbdev)
{
int err = 0;
if (!request_mem_region(kbdev->reg_start, kbdev->reg_size, dev_name(kbdev->dev))) {
dev_err(kbdev->dev, "Register window unavailable\n");
err = -EIO;
goto out_region;
}
kbdev->reg = ioremap(kbdev->reg_start, kbdev->reg_size);
if (!kbdev->reg) {
dev_err(kbdev->dev, "Can't remap register window\n");
err = -EINVAL;
goto out_ioremap;
}
return err;
out_ioremap:
release_mem_region(kbdev->reg_start, kbdev->reg_size);
out_region:
return err;
}
static void kbase_common_reg_unmap(struct kbase_device * const kbdev)
{
if (kbdev->reg) {
iounmap(kbdev->reg);
release_mem_region(kbdev->reg_start, kbdev->reg_size);
kbdev->reg = NULL;
kbdev->reg_start = 0;
kbdev->reg_size = 0;
}
}
#endif /* CONFIG_MALI_NO_MALI */
int registers_map(struct kbase_device * const kbdev)
{
/* the first memory resource is the physical address of the GPU
* registers.
*/
struct platform_device *pdev = to_platform_device(kbdev->dev);
struct resource *reg_res;
int err;
reg_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!reg_res) {
dev_err(kbdev->dev, "Invalid register resource\n");
return -ENOENT;
}
kbdev->reg_start = reg_res->start;
kbdev->reg_size = resource_size(reg_res);
#if MALI_USE_CSF
if (kbdev->reg_size <
(CSF_HW_DOORBELL_PAGE_OFFSET +
CSF_NUM_DOORBELL * CSF_HW_DOORBELL_PAGE_SIZE)) {
dev_err(kbdev->dev, "Insufficient register space, will override to the required size\n");
kbdev->reg_size = CSF_HW_DOORBELL_PAGE_OFFSET +
CSF_NUM_DOORBELL * CSF_HW_DOORBELL_PAGE_SIZE;
}
#endif
err = kbase_common_reg_map(kbdev);
if (err) {
dev_err(kbdev->dev, "Failed to map registers\n");
return err;
}
return 0;
}
void registers_unmap(struct kbase_device *kbdev)
{
kbase_common_reg_unmap(kbdev);
}
#if defined(CONFIG_MALI_ARBITER_SUPPORT) && defined(CONFIG_OF)
static bool kbase_is_pm_enabled(const struct device_node *gpu_node)
{
const struct device_node *power_model_node;
const void *cooling_cells_node;
const void *operating_point_node;
bool is_pm_enable = false;
power_model_node = of_get_child_by_name(gpu_node,
"power_model");
if (power_model_node)
is_pm_enable = true;
cooling_cells_node = of_get_property(gpu_node,
"#cooling-cells", NULL);
if (cooling_cells_node)
is_pm_enable = true;
operating_point_node = of_get_property(gpu_node,
"operating-points", NULL);
if (operating_point_node)
is_pm_enable = true;
return is_pm_enable;
}
static bool kbase_is_pv_enabled(const struct device_node *gpu_node)
{
const void *arbiter_if_node;
arbiter_if_node = of_get_property(gpu_node,
"arbiter_if", NULL);
return arbiter_if_node ? true : false;
}
static bool kbase_is_full_coherency_enabled(const struct device_node *gpu_node)
{
const void *coherency_dts;
u32 coherency;
coherency_dts = of_get_property(gpu_node,
"system-coherency",
NULL);
if (coherency_dts) {
coherency = be32_to_cpup(coherency_dts);
if (coherency == COHERENCY_ACE)
return true;
}
return false;
}
#endif /* CONFIG_MALI_ARBITER_SUPPORT && CONFIG_OF */
int kbase_device_pm_init(struct kbase_device *kbdev)
{
int err = 0;
#if defined(CONFIG_MALI_ARBITER_SUPPORT) && defined(CONFIG_OF)
u32 gpu_id;
u32 product_id;
u32 gpu_model_id;
if (kbase_is_pv_enabled(kbdev->dev->of_node)) {
dev_info(kbdev->dev, "Arbitration interface enabled\n");
if (kbase_is_pm_enabled(kbdev->dev->of_node)) {
/* Arbitration AND power management invalid */
dev_err(kbdev->dev, "Invalid combination of arbitration AND power management\n");
return -EPERM;
}
if (kbase_is_full_coherency_enabled(kbdev->dev->of_node)) {
/* Arbitration AND full coherency invalid */
dev_err(kbdev->dev, "Invalid combination of arbitration AND full coherency\n");
return -EPERM;
}
err = kbase_arbiter_pm_early_init(kbdev);
if (err == 0) {
/* Check if Arbitration is running on
* supported GPU platform
*/
kbase_pm_register_access_enable(kbdev);
gpu_id = kbase_reg_read(kbdev, GPU_CONTROL_REG(GPU_ID));
kbase_pm_register_access_disable(kbdev);
product_id =
KBASE_UBFX32(gpu_id, KBASE_GPU_ID_VERSION_PRODUCT_ID_SHIFT, 16);
gpu_model_id = GPU_ID2_MODEL_MATCH_VALUE(product_id);
if (gpu_model_id != GPU_ID2_PRODUCT_TGOX
&& gpu_model_id != GPU_ID2_PRODUCT_TNOX
&& gpu_model_id != GPU_ID2_PRODUCT_TBAX) {
kbase_arbiter_pm_early_term(kbdev);
dev_err(kbdev->dev, "GPU platform not suitable for arbitration\n");
return -EPERM;
}
}
} else {
kbdev->arb.arb_if = NULL;
kbdev->arb.arb_dev = NULL;
err = power_control_init(kbdev);
}
#else
err = power_control_init(kbdev);
#endif /* CONFIG_MALI_ARBITER_SUPPORT && CONFIG_OF */
return err;
}
void kbase_device_pm_term(struct kbase_device *kbdev)
{
#ifdef CONFIG_MALI_ARBITER_SUPPORT
#if IS_ENABLED(CONFIG_OF)
if (kbase_is_pv_enabled(kbdev->dev->of_node))
kbase_arbiter_pm_early_term(kbdev);
else
power_control_term(kbdev);
#endif /* CONFIG_OF */
#else
power_control_term(kbdev);
#endif
}
int power_control_init(struct kbase_device *kbdev)
{
#ifndef CONFIG_OF
/* Power control initialization requires at least the capability to get
* regulators and clocks from the device tree, as well as parsing
* arrays of unsigned integer values.
*
* The whole initialization process shall simply be skipped if the
* minimum capability is not available.
*/
return 0;
#else
struct platform_device *pdev;
int err = 0;
unsigned int i;
#if defined(CONFIG_REGULATOR)
static const char * const regulator_names[] = {
"mali", "shadercores"
};
BUILD_BUG_ON(ARRAY_SIZE(regulator_names) < BASE_MAX_NR_CLOCKS_REGULATORS);
#endif /* CONFIG_REGULATOR */
if (!kbdev)
return -ENODEV;
pdev = to_platform_device(kbdev->dev);
#if defined(CONFIG_REGULATOR)
/* Since the error code EPROBE_DEFER causes the entire probing
* procedure to be restarted from scratch at a later time,
* all regulators will be released before returning.
*
* Any other error is ignored and the driver will continue
* operating with a partial initialization of regulators.
*/
for (i = 0; i < BASE_MAX_NR_CLOCKS_REGULATORS; i++) {
kbdev->regulators[i] = regulator_get_optional(kbdev->dev,
regulator_names[i]);
if (IS_ERR_OR_NULL(kbdev->regulators[i])) {
err = PTR_ERR(kbdev->regulators[i]);
kbdev->regulators[i] = NULL;
break;
}
}
if (err == -EPROBE_DEFER) {
while ((i > 0) && (i < BASE_MAX_NR_CLOCKS_REGULATORS))
regulator_put(kbdev->regulators[--i]);
return err;
}
kbdev->nr_regulators = i;
dev_dbg(&pdev->dev, "Regulators probed: %u\n", kbdev->nr_regulators);
#endif
/* Having more clocks than regulators is acceptable, while the
* opposite shall not happen.
*
* Since the error code EPROBE_DEFER causes the entire probing
* procedure to be restarted from scratch at a later time,
* all clocks and regulators will be released before returning.
*
* Any other error is ignored and the driver will continue
* operating with a partial initialization of clocks.
*/
for (i = 0; i < BASE_MAX_NR_CLOCKS_REGULATORS; i++) {
kbdev->clocks[i] = of_clk_get(kbdev->dev->of_node, i);
if (IS_ERR_OR_NULL(kbdev->clocks[i])) {
err = PTR_ERR(kbdev->clocks[i]);
kbdev->clocks[i] = NULL;
break;
}
err = clk_prepare_enable(kbdev->clocks[i]);
if (err) {
dev_err(kbdev->dev,
"Failed to prepare and enable clock (%d)\n",
err);
clk_put(kbdev->clocks[i]);
break;
}
}
if (err == -EPROBE_DEFER) {
while ((i > 0) && (i < BASE_MAX_NR_CLOCKS_REGULATORS)) {
clk_disable_unprepare(kbdev->clocks[--i]);
clk_put(kbdev->clocks[i]);
}
goto clocks_probe_defer;
}
kbdev->nr_clocks = i;
dev_dbg(&pdev->dev, "Clocks probed: %u\n", kbdev->nr_clocks);
/* Any error in parsing the OPP table from the device file
* shall be ignored. The fact that the table may be absent or wrong
* on the device tree of the platform shouldn't prevent the driver
* from completing its initialization.
*/
#if defined(CONFIG_PM_OPP)
#if ((KERNEL_VERSION(4, 10, 0) <= LINUX_VERSION_CODE) && \
defined(CONFIG_REGULATOR))
if (kbdev->nr_regulators > 0) {
kbdev->opp_table = dev_pm_opp_set_regulators(kbdev->dev,
regulator_names, BASE_MAX_NR_CLOCKS_REGULATORS);
}
#endif /* (KERNEL_VERSION(4, 10, 0) <= LINUX_VERSION_CODE */
err = dev_pm_opp_of_add_table(kbdev->dev);
CSTD_UNUSED(err);
#endif /* CONFIG_PM_OPP */
return 0;
clocks_probe_defer:
#if defined(CONFIG_REGULATOR)
for (i = 0; i < BASE_MAX_NR_CLOCKS_REGULATORS; i++)
regulator_put(kbdev->regulators[i]);
#endif
return err;
#endif /* CONFIG_OF */
}
void power_control_term(struct kbase_device *kbdev)
{
unsigned int i;
#if defined(CONFIG_PM_OPP)
dev_pm_opp_of_remove_table(kbdev->dev);
#if ((KERNEL_VERSION(4, 10, 0) <= LINUX_VERSION_CODE) && \
defined(CONFIG_REGULATOR))
if (!IS_ERR_OR_NULL(kbdev->opp_table))
dev_pm_opp_put_regulators(kbdev->opp_table);
#endif /* (KERNEL_VERSION(4, 10, 0) <= LINUX_VERSION_CODE */
#endif /* CONFIG_PM_OPP */
for (i = 0; i < BASE_MAX_NR_CLOCKS_REGULATORS; i++) {
if (kbdev->clocks[i]) {
if (__clk_is_enabled(kbdev->clocks[i]))
clk_disable_unprepare(kbdev->clocks[i]);
clk_put(kbdev->clocks[i]);
kbdev->clocks[i] = NULL;
} else
break;
}
#if defined(CONFIG_OF) && defined(CONFIG_REGULATOR)
for (i = 0; i < BASE_MAX_NR_CLOCKS_REGULATORS; i++) {
if (kbdev->regulators[i]) {
regulator_put(kbdev->regulators[i]);
kbdev->regulators[i] = NULL;
}
}
#endif
}
#if IS_ENABLED(CONFIG_DEBUG_FS)
static void trigger_reset(struct kbase_device *kbdev)
{
kbase_pm_context_active(kbdev);
if (kbase_prepare_to_reset_gpu(kbdev, RESET_FLAGS_NONE))
kbase_reset_gpu(kbdev);
kbase_pm_context_idle(kbdev);
}
#define MAKE_QUIRK_ACCESSORS(type) \
static int type##_quirks_set(void *data, u64 val) \
{ \
struct kbase_device *kbdev; \
kbdev = (struct kbase_device *)data; \
kbdev->hw_quirks_##type = (u32)val; \
trigger_reset(kbdev); \
return 0;\
} \
\
static int type##_quirks_get(void *data, u64 *val) \
{ \
struct kbase_device *kbdev;\
kbdev = (struct kbase_device *)data;\
*val = kbdev->hw_quirks_##type;\
return 0;\
} \
DEFINE_SIMPLE_ATTRIBUTE(fops_##type##_quirks, type##_quirks_get,\
type##_quirks_set, "%llu\n")
MAKE_QUIRK_ACCESSORS(sc);
MAKE_QUIRK_ACCESSORS(tiler);
MAKE_QUIRK_ACCESSORS(mmu);
MAKE_QUIRK_ACCESSORS(gpu);
/**
* kbase_device_debugfs_reset_write() - Reset the GPU
*
* @data: Pointer to the Kbase device.
* @wait_for_reset: Value written to the file.
*
* This function will perform the GPU reset, and if the value written to
* the file is 1 it will also wait for the reset to complete.
*
* Return: 0 in case of no error otherwise a negative value.
*/
static int kbase_device_debugfs_reset_write(void *data, u64 wait_for_reset)
{
struct kbase_device *kbdev = data;
trigger_reset(kbdev);
if (wait_for_reset == 1)
return kbase_reset_gpu_wait(kbdev);
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(fops_trigger_reset,
NULL, &kbase_device_debugfs_reset_write, "%llu\n");
/**
* debugfs_protected_debug_mode_read - "protected_debug_mode" debugfs read
* @file: File object to read is for
* @buf: User buffer to populate with data
* @len: Length of user buffer
* @ppos: Offset within file object
*
* Retrieves the current status of protected debug mode
* (0 = disabled, 1 = enabled)
*
* Return: Number of bytes added to user buffer
*/
static ssize_t debugfs_protected_debug_mode_read(struct file *file,
char __user *buf, size_t len, loff_t *ppos)
{
struct kbase_device *kbdev = (struct kbase_device *)file->private_data;
u32 gpu_status;
ssize_t ret_val;
kbase_pm_context_active(kbdev);
gpu_status = kbase_reg_read(kbdev, GPU_CONTROL_REG(GPU_STATUS));
kbase_pm_context_idle(kbdev);
if (gpu_status & GPU_DBGEN)
ret_val = simple_read_from_buffer(buf, len, ppos, "1\n", 2);
else
ret_val = simple_read_from_buffer(buf, len, ppos, "0\n", 2);
return ret_val;
}
/*
* struct fops_protected_debug_mode - "protected_debug_mode" debugfs fops
*
* Contains the file operations for the "protected_debug_mode" debugfs file
*/
static const struct file_operations fops_protected_debug_mode = {
.owner = THIS_MODULE,
.open = simple_open,
.read = debugfs_protected_debug_mode_read,
.llseek = default_llseek,
};
static int kbase_device_debugfs_mem_pool_max_size_show(struct seq_file *sfile,
void *data)
{
CSTD_UNUSED(data);
return kbase_debugfs_helper_seq_read(sfile,
MEMORY_GROUP_MANAGER_NR_GROUPS,
kbase_mem_pool_config_debugfs_max_size);
}
static ssize_t kbase_device_debugfs_mem_pool_max_size_write(struct file *file,
const char __user *ubuf, size_t count, loff_t *ppos)
{
int err = 0;
CSTD_UNUSED(ppos);
err = kbase_debugfs_helper_seq_write(file, ubuf, count,
MEMORY_GROUP_MANAGER_NR_GROUPS,
kbase_mem_pool_config_debugfs_set_max_size);
return err ? err : count;
}
static int kbase_device_debugfs_mem_pool_max_size_open(struct inode *in,
struct file *file)
{
return single_open(file, kbase_device_debugfs_mem_pool_max_size_show,
in->i_private);
}
static const struct file_operations
kbase_device_debugfs_mem_pool_max_size_fops = {
.owner = THIS_MODULE,
.open = kbase_device_debugfs_mem_pool_max_size_open,
.read = seq_read,
.write = kbase_device_debugfs_mem_pool_max_size_write,
.llseek = seq_lseek,
.release = single_release,
};
int kbase_device_debugfs_init(struct kbase_device *kbdev)
{
struct dentry *debugfs_ctx_defaults_directory;
int err;
/* prevent unprivileged use of debug file system
* in old kernel version
*/
#if (KERNEL_VERSION(4, 7, 0) <= LINUX_VERSION_CODE)
/* only for newer kernel version debug file system is safe */
const mode_t mode = 0644;
#else
const mode_t mode = 0600;
#endif
kbdev->mali_debugfs_directory = debugfs_create_dir(kbdev->devname,
NULL);
if (IS_ERR_OR_NULL(kbdev->mali_debugfs_directory)) {
dev_err(kbdev->dev,
"Couldn't create mali debugfs directory: %s\n",
kbdev->devname);
err = -ENOMEM;
goto out;
}
kbdev->debugfs_ctx_directory = debugfs_create_dir("ctx",
kbdev->mali_debugfs_directory);
if (IS_ERR_OR_NULL(kbdev->debugfs_ctx_directory)) {
dev_err(kbdev->dev, "Couldn't create mali debugfs ctx directory\n");
err = -ENOMEM;
goto out;
}
kbdev->debugfs_instr_directory = debugfs_create_dir("instrumentation",
kbdev->mali_debugfs_directory);
if (IS_ERR_OR_NULL(kbdev->debugfs_instr_directory)) {
dev_err(kbdev->dev, "Couldn't create mali debugfs instrumentation directory\n");
err = -ENOMEM;
goto out;
}
debugfs_ctx_defaults_directory = debugfs_create_dir("defaults",
kbdev->debugfs_ctx_directory);
if (IS_ERR_OR_NULL(debugfs_ctx_defaults_directory)) {
dev_err(kbdev->dev, "Couldn't create mali debugfs ctx defaults directory\n");
err = -ENOMEM;
goto out;
}
kbasep_regs_history_debugfs_init(kbdev);
#if !MALI_USE_CSF
kbase_debug_job_fault_debugfs_init(kbdev);
#endif /* !MALI_USE_CSF */
kbasep_gpu_memory_debugfs_init(kbdev);
kbase_as_fault_debugfs_init(kbdev);
#ifdef CONFIG_MALI_PRFCNT_SET_SELECT_VIA_DEBUG_FS
kbase_instr_backend_debugfs_init(kbdev);
#endif
kbase_pbha_debugfs_init(kbdev);
/* fops_* variables created by invocations of macro
* MAKE_QUIRK_ACCESSORS() above.
*/
debugfs_create_file("quirks_sc", 0644,
kbdev->mali_debugfs_directory, kbdev,
&fops_sc_quirks);
debugfs_create_file("quirks_tiler", 0644,
kbdev->mali_debugfs_directory, kbdev,
&fops_tiler_quirks);
debugfs_create_file("quirks_mmu", 0644,
kbdev->mali_debugfs_directory, kbdev,
&fops_mmu_quirks);
debugfs_create_file("quirks_gpu", 0644, kbdev->mali_debugfs_directory,
kbdev, &fops_gpu_quirks);
debugfs_create_bool("infinite_cache", mode,
debugfs_ctx_defaults_directory,
&kbdev->infinite_cache_active_default);
debugfs_create_file("mem_pool_max_size", mode,
debugfs_ctx_defaults_directory,
&kbdev->mem_pool_defaults.small,
&kbase_device_debugfs_mem_pool_max_size_fops);
debugfs_create_file("lp_mem_pool_max_size", mode,
debugfs_ctx_defaults_directory,
&kbdev->mem_pool_defaults.large,
&kbase_device_debugfs_mem_pool_max_size_fops);
if (kbase_hw_has_feature(kbdev, BASE_HW_FEATURE_PROTECTED_DEBUG_MODE)) {
debugfs_create_file("protected_debug_mode", 0444,
kbdev->mali_debugfs_directory, kbdev,
&fops_protected_debug_mode);
}
debugfs_create_file("reset", 0644,
kbdev->mali_debugfs_directory, kbdev,
&fops_trigger_reset);
kbase_ktrace_debugfs_init(kbdev);
#ifdef CONFIG_MALI_DEVFREQ
#if IS_ENABLED(CONFIG_DEVFREQ_THERMAL)
if (kbdev->devfreq)
kbase_ipa_debugfs_init(kbdev);
#endif /* CONFIG_DEVFREQ_THERMAL */
#endif /* CONFIG_MALI_DEVFREQ */
#if !MALI_USE_CSF
debugfs_create_file("serialize_jobs", 0644,
kbdev->mali_debugfs_directory, kbdev,
&kbasep_serialize_jobs_debugfs_fops);
#endif
kbase_dvfs_status_debugfs_init(kbdev);
return 0;
out:
debugfs_remove_recursive(kbdev->mali_debugfs_directory);
return err;
}
void kbase_device_debugfs_term(struct kbase_device *kbdev)
{
debugfs_remove_recursive(kbdev->mali_debugfs_directory);
}
#endif /* CONFIG_DEBUG_FS */
int kbase_device_coherency_init(struct kbase_device *kbdev)
{
#if IS_ENABLED(CONFIG_OF)
u32 supported_coherency_bitmap =
kbdev->gpu_props.props.raw_props.coherency_mode;
const void *coherency_override_dts;
bool dma_coherent;
u32 override_coherency, gpu_id;
unsigned int prod_id;
gpu_id = kbdev->gpu_props.props.raw_props.gpu_id;
gpu_id &= GPU_ID_VERSION_PRODUCT_ID;
prod_id = gpu_id >> KBASE_GPU_ID_VERSION_PRODUCT_ID_SHIFT;
/* Only for tMIx :
* (COHERENCY_ACE_LITE | COHERENCY_ACE) was incorrectly
* documented for tMIx so force correct value here.
*/
if (GPU_ID2_MODEL_MATCH_VALUE(prod_id) ==
GPU_ID2_PRODUCT_TMIX)
if (supported_coherency_bitmap ==
COHERENCY_FEATURE_BIT(COHERENCY_ACE))
supported_coherency_bitmap |=
COHERENCY_FEATURE_BIT(COHERENCY_ACE_LITE);
#endif /* CONFIG_OF */
kbdev->system_coherency = COHERENCY_NONE;
/* device tree may override the coherency */
#if IS_ENABLED(CONFIG_OF)
/* treat "dma-coherency" as a synonym for ACE-lite */
dma_coherent = of_dma_is_coherent(kbdev->dev->of_node);
coherency_override_dts = of_get_property(kbdev->dev->of_node,
"system-coherency",
NULL);
if (coherency_override_dts || dma_coherent) {
if (coherency_override_dts) {
override_coherency = be32_to_cpup(coherency_override_dts);
if (dma_coherent && override_coherency != COHERENCY_ACE_LITE) {
dev_err(kbdev->dev,
"system-coherency needs to be 0 when dma-coherent is set\n");
return -EINVAL;
}
} else {
/* dma-coherent set and system-coherency not specified */
override_coherency = COHERENCY_ACE_LITE;
}
#if MALI_USE_CSF && !IS_ENABLED(CONFIG_MALI_NO_MALI)
/* ACE coherency mode is not supported by Driver on CSF GPUs.
* Return an error to signal the invalid device tree configuration.
*/
if (override_coherency == COHERENCY_ACE) {
dev_err(kbdev->dev,
"ACE coherency not supported, wrong DT configuration");
return -EINVAL;
}
#endif
if ((override_coherency <= COHERENCY_NONE) &&
(supported_coherency_bitmap &
COHERENCY_FEATURE_BIT(override_coherency))) {
kbdev->system_coherency = override_coherency;
dev_info(kbdev->dev,
"Using coherency mode %u set from dtb",
override_coherency);
} else
dev_warn(kbdev->dev,
"Ignoring unsupported coherency mode %u set from dtb",
override_coherency);
}
#endif /* CONFIG_OF */
kbdev->gpu_props.props.raw_props.coherency_mode =
kbdev->system_coherency;
return 0;
}
#if MALI_USE_CSF
/**
* csg_scheduling_period_store - Store callback for the csg_scheduling_period
* sysfs file.
* @dev: The device with sysfs file is for
* @attr: The attributes of the sysfs file
* @buf: The value written to the sysfs file
* @count: The number of bytes written to the sysfs file
*
* This function is called when the csg_scheduling_period sysfs file is written
* to. It checks the data written, and if valid updates the reset timeout.
*
* Return: @count if the function succeeded. An error code on failure.
*/
static ssize_t csg_scheduling_period_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct kbase_device *kbdev;
int ret;
unsigned int csg_scheduling_period;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
ret = kstrtouint(buf, 0, &csg_scheduling_period);
if (ret || csg_scheduling_period == 0) {
dev_err(kbdev->dev,
"Couldn't process csg_scheduling_period write operation.\n"
"Use format 'csg_scheduling_period_ms', and csg_scheduling_period_ms > 0\n");
return -EINVAL;
}
kbase_csf_scheduler_lock(kbdev);
kbdev->csf.scheduler.csg_scheduling_period_ms = csg_scheduling_period;
dev_dbg(kbdev->dev, "CSG scheduling period: %ums\n",
csg_scheduling_period);
kbase_csf_scheduler_unlock(kbdev);
return count;
}
/**
* csg_scheduling_period_show - Show callback for the csg_scheduling_period
* sysfs entry.
* @dev: The device this sysfs file is for.
* @attr: The attributes of the sysfs file.
* @buf: The output buffer to receive the GPU information.
*
* This function is called to get the current reset timeout.
*
* Return: The number of bytes output to @buf.
*/
static ssize_t csg_scheduling_period_show(struct device *dev,
struct device_attribute *attr,
char *const buf)
{
struct kbase_device *kbdev;
ssize_t ret;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
ret = scnprintf(buf, PAGE_SIZE, "%u\n",
kbdev->csf.scheduler.csg_scheduling_period_ms);
return ret;
}
static DEVICE_ATTR_RW(csg_scheduling_period);
/**
* fw_timeout_store - Store callback for the fw_timeout sysfs file.
* @dev: The device with sysfs file is for
* @attr: The attributes of the sysfs file
* @buf: The value written to the sysfs file
* @count: The number of bytes written to the sysfs file
*
* This function is called when the fw_timeout sysfs file is written to. It
* checks the data written, and if valid updates the reset timeout.
*
* Return: @count if the function succeeded. An error code on failure.
*/
static ssize_t fw_timeout_store(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
struct kbase_device *kbdev;
int ret;
unsigned int fw_timeout;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
ret = kstrtouint(buf, 0, &fw_timeout);
if (ret || fw_timeout == 0) {
dev_err(kbdev->dev, "%s\n%s\n%u",
"Couldn't process fw_timeout write operation.",
"Use format 'fw_timeout_ms', and fw_timeout_ms > 0",
FIRMWARE_PING_INTERVAL_MS);
return -EINVAL;
}
kbase_csf_scheduler_lock(kbdev);
kbdev->csf.fw_timeout_ms = fw_timeout;
kbase_csf_scheduler_unlock(kbdev);
dev_dbg(kbdev->dev, "Firmware timeout: %ums\n", fw_timeout);
return count;
}
/**
* fw_timeout_show - Show callback for the firmware timeout sysfs entry.
* @dev: The device this sysfs file is for.
* @attr: The attributes of the sysfs file.
* @buf: The output buffer to receive the GPU information.
*
* This function is called to get the current reset timeout.
*
* Return: The number of bytes output to @buf.
*/
static ssize_t fw_timeout_show(struct device *dev,
struct device_attribute *attr, char *const buf)
{
struct kbase_device *kbdev;
ssize_t ret;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
ret = scnprintf(buf, PAGE_SIZE, "%u\n", kbdev->csf.fw_timeout_ms);
return ret;
}
static DEVICE_ATTR_RW(fw_timeout);
/**
* idle_hysteresis_time_store - Store callback for CSF idle_hysteresis_time
* sysfs file.
* @dev: The device with sysfs file is for
* @attr: The attributes of the sysfs file
* @buf: The value written to the sysfs file
* @count: The number of bytes written to the sysfs file
*
* This function is called when the idle_hysteresis_time sysfs file is
* written to.
*
* This file contains values of the idle hysteresis duration.
*
* Return: @count if the function succeeded. An error code on failure.
*/
static ssize_t idle_hysteresis_time_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct kbase_device *kbdev;
u32 dur = 0;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
if (kstrtou32(buf, 0, &dur)) {
dev_err(kbdev->dev, "Couldn't process idle_hysteresis_time write operation.\n"
"Use format <idle_hysteresis_time>\n");
return -EINVAL;
}
kbase_csf_firmware_set_gpu_idle_hysteresis_time(kbdev, dur);
return count;
}
/**
* idle_hysteresis_time_show - Show callback for CSF idle_hysteresis_time
* sysfs entry.
* @dev: The device this sysfs file is for.
* @attr: The attributes of the sysfs file.
* @buf: The output buffer to receive the GPU information.
*
* This function is called to get the current idle hysteresis duration in ms.
*
* Return: The number of bytes output to @buf.
*/
static ssize_t idle_hysteresis_time_show(struct device *dev,
struct device_attribute *attr, char * const buf)
{
struct kbase_device *kbdev;
ssize_t ret;
u32 dur;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
dur = kbase_csf_firmware_get_gpu_idle_hysteresis_time(kbdev);
ret = scnprintf(buf, PAGE_SIZE, "%u\n", dur);
return ret;
}
static DEVICE_ATTR_RW(idle_hysteresis_time);
#endif /* MALI_USE_CSF */
static struct attribute *kbase_scheduling_attrs[] = {
#if !MALI_USE_CSF
&dev_attr_serialize_jobs.attr,
#endif /* !MALI_USE_CSF */
NULL
};
static ssize_t total_gpu_mem_show(
struct device *dev,
struct device_attribute *attr,
char *const buf)
{
struct kbase_device *kbdev;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
return sysfs_emit(buf, "%lu\n",
(unsigned long) kbdev->total_gpu_pages << PAGE_SHIFT);
}
static DEVICE_ATTR_RO(total_gpu_mem);
static ssize_t dma_buf_gpu_mem_show(
struct device *dev,
struct device_attribute *attr,
char *const buf)
{
struct kbase_device *kbdev;
kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
return sysfs_emit(buf, "%lu\n",
(unsigned long) kbdev->dma_buf_pages << PAGE_SHIFT);
}
static DEVICE_ATTR_RO(dma_buf_gpu_mem);
static struct attribute *kbase_attrs[] = {
#ifdef CONFIG_MALI_DEBUG
&dev_attr_debug_command.attr,
#if !MALI_USE_CSF
&dev_attr_js_softstop_always.attr,
#endif /* !MALI_USE_CSF */
#endif
#if !MALI_USE_CSF
&dev_attr_js_timeouts.attr,
&dev_attr_soft_job_timeout.attr,
#endif /* !MALI_USE_CSF */
&dev_attr_gpuinfo.attr,
&dev_attr_dvfs_period.attr,
&dev_attr_pm_poweroff.attr,
&dev_attr_reset_timeout.attr,
#if !MALI_USE_CSF
&dev_attr_js_scheduling_period.attr,
#else
&dev_attr_csg_scheduling_period.attr,
&dev_attr_fw_timeout.attr,
&dev_attr_idle_hysteresis_time.attr,
#endif /* !MALI_USE_CSF */
&dev_attr_power_policy.attr,
&dev_attr_core_mask.attr,
&dev_attr_mem_pool_size.attr,
&dev_attr_mem_pool_max_size.attr,
&dev_attr_lp_mem_pool_size.attr,
&dev_attr_lp_mem_pool_max_size.attr,
#if !MALI_USE_CSF
&dev_attr_js_ctx_scheduling_mode.attr,
#endif /* !MALI_USE_CSF */
&dev_attr_total_gpu_mem.attr,
&dev_attr_dma_buf_gpu_mem.attr,
NULL
};
static struct attribute *kbase_mempool_attrs[] = {
&dev_attr_max_size.attr,
&dev_attr_lp_max_size.attr,
&dev_attr_ctx_default_max_size.attr,
NULL
};
#define SYSFS_SCHEDULING_GROUP "scheduling"
static const struct attribute_group kbase_scheduling_attr_group = {
.name = SYSFS_SCHEDULING_GROUP,
.attrs = kbase_scheduling_attrs,
};
#define SYSFS_MEMPOOL_GROUP "mempool"
static const struct attribute_group kbase_mempool_attr_group = {
.name = SYSFS_MEMPOOL_GROUP,
.attrs = kbase_mempool_attrs,
};
static const struct attribute_group kbase_attr_group = {
.attrs = kbase_attrs,
};
int kbase_sysfs_init(struct kbase_device *kbdev)
{
int err = 0;
kbdev->mdev.minor = MISC_DYNAMIC_MINOR;
kbdev->mdev.name = kbdev->devname;
kbdev->mdev.fops = &kbase_fops;
kbdev->mdev.parent = get_device(kbdev->dev);
kbdev->mdev.mode = 0666;
err = sysfs_create_group(&kbdev->dev->kobj, &kbase_attr_group);
if (err)
return err;
err = sysfs_create_group(&kbdev->dev->kobj,
&kbase_scheduling_attr_group);
if (err) {
dev_err(kbdev->dev, "Creation of %s sysfs group failed",
SYSFS_SCHEDULING_GROUP);
sysfs_remove_group(&kbdev->dev->kobj,
&kbase_attr_group);
return err;
}
err = sysfs_create_group(&kbdev->dev->kobj,
&kbase_mempool_attr_group);
if (err) {
dev_err(kbdev->dev, "Creation of %s sysfs group failed",
SYSFS_MEMPOOL_GROUP);
sysfs_remove_group(&kbdev->dev->kobj,
&kbase_scheduling_attr_group);
sysfs_remove_group(&kbdev->dev->kobj,
&kbase_attr_group);
}
kbdev->proc_sysfs_node = kobject_create_and_add("kprcs",
&kbdev->dev->kobj);
return err;
}
void kbase_sysfs_term(struct kbase_device *kbdev)
{
sysfs_remove_group(&kbdev->dev->kobj, &kbase_mempool_attr_group);
sysfs_remove_group(&kbdev->dev->kobj, &kbase_scheduling_attr_group);
sysfs_remove_group(&kbdev->dev->kobj, &kbase_attr_group);
kobject_del(kbdev->proc_sysfs_node);
kobject_put(kbdev->proc_sysfs_node);
put_device(kbdev->dev);
}
static int kbase_platform_device_remove(struct platform_device *pdev)
{
struct kbase_device *kbdev = to_kbase_device(&pdev->dev);
if (!kbdev)
return -ENODEV;
kbase_device_term(kbdev);
dev_set_drvdata(kbdev->dev, NULL);
kbase_device_free(kbdev);
return 0;
}
void kbase_backend_devfreq_term(struct kbase_device *kbdev)
{
#ifdef CONFIG_MALI_DEVFREQ
if (kbdev->devfreq)
kbase_devfreq_term(kbdev);
#endif
}
int kbase_backend_devfreq_init(struct kbase_device *kbdev)
{
#ifdef CONFIG_MALI_DEVFREQ
/* Devfreq uses hardware counters, so must be initialized after it. */
int err = kbase_devfreq_init(kbdev);
if (err)
dev_err(kbdev->dev, "Continuing without devfreq\n");
#endif /* CONFIG_MALI_DEVFREQ */
return 0;
}
static int kbase_platform_device_probe(struct platform_device *pdev)
{
struct kbase_device *kbdev;
int err = 0;
mali_kbase_print_cs_experimental();
kbdev = kbase_device_alloc();
if (!kbdev) {
dev_err(&pdev->dev, "Allocate device failed\n");
return -ENOMEM;
}
kbdev->dev = &pdev->dev;
dev_set_drvdata(kbdev->dev, kbdev);
err = kbase_device_init(kbdev);
if (err) {
if (err == -EPROBE_DEFER)
dev_info(kbdev->dev,
"Device initialization Deferred\n");
else
dev_err(kbdev->dev, "Device initialization failed\n");
dev_set_drvdata(kbdev->dev, NULL);
kbase_device_free(kbdev);
} else {
dev_info(kbdev->dev,
"Probed as %s\n", dev_name(kbdev->mdev.this_device));
kbase_increment_device_id();
#ifdef CONFIG_MALI_ARBITER_SUPPORT
mutex_lock(&kbdev->pm.lock);
kbase_arbiter_pm_vm_event(kbdev, KBASE_VM_GPU_INITIALIZED_EVT);
mutex_unlock(&kbdev->pm.lock);
#endif
}
return err;
}
#undef KBASEP_DEFAULT_REGISTER_HISTORY_SIZE
/**
* kbase_device_suspend - Suspend callback from the OS.
*
* @dev: The device to suspend
*
* This is called by Linux when the device should suspend.
*
* Return: A standard Linux error code on failure, 0 otherwise.
*/
static int kbase_device_suspend(struct device *dev)
{
struct kbase_device *kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
if (kbase_pm_suspend(kbdev)) {
dev_warn(kbdev->dev, "Abort suspend as GPU suspension failed");
return -EBUSY;
}
#ifdef CONFIG_MALI_MIDGARD_DVFS
kbase_pm_metrics_stop(kbdev);
#endif
#ifdef CONFIG_MALI_DEVFREQ
dev_dbg(dev, "Callback %s\n", __func__);
if (kbdev->devfreq) {
kbase_devfreq_enqueue_work(kbdev, DEVFREQ_WORK_SUSPEND);
flush_workqueue(kbdev->devfreq_queue.workq);
}
#endif
return 0;
}
/**
* kbase_device_resume - Resume callback from the OS.
*
* @dev: The device to resume
*
* This is called by Linux when the device should resume from suspension.
*
* Return: A standard Linux error code
*/
static int kbase_device_resume(struct device *dev)
{
struct kbase_device *kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
kbase_pm_resume(kbdev);
#ifdef CONFIG_MALI_MIDGARD_DVFS
kbase_pm_metrics_start(kbdev);
#endif
#ifdef CONFIG_MALI_DEVFREQ
dev_dbg(dev, "Callback %s\n", __func__);
if (kbdev->devfreq) {
mutex_lock(&kbdev->pm.lock);
if (kbdev->pm.active_count > 0)
kbase_devfreq_enqueue_work(kbdev, DEVFREQ_WORK_RESUME);
mutex_unlock(&kbdev->pm.lock);
flush_workqueue(kbdev->devfreq_queue.workq);
}
#endif
return 0;
}
/**
* kbase_device_runtime_suspend - Runtime suspend callback from the OS.
*
* @dev: The device to suspend
*
* This is called by Linux when the device should prepare for a condition in
* which it will not be able to communicate with the CPU(s) and RAM due to
* power management.
*
* Return: A standard Linux error code
*/
#ifdef KBASE_PM_RUNTIME
static int kbase_device_runtime_suspend(struct device *dev)
{
struct kbase_device *kbdev = to_kbase_device(dev);
int ret = 0;
if (!kbdev)
return -ENODEV;
dev_dbg(dev, "Callback %s\n", __func__);
KBASE_KTRACE_ADD(kbdev, PM_RUNTIME_SUSPEND_CALLBACK, NULL, 0);
#if MALI_USE_CSF
ret = kbase_pm_handle_runtime_suspend(kbdev);
if (ret)
return ret;
#endif
#ifdef CONFIG_MALI_MIDGARD_DVFS
kbase_pm_metrics_stop(kbdev);
#endif
#ifdef CONFIG_MALI_DEVFREQ
if (kbdev->devfreq)
kbase_devfreq_enqueue_work(kbdev, DEVFREQ_WORK_SUSPEND);
#endif
if (kbdev->pm.backend.callback_power_runtime_off) {
kbdev->pm.backend.callback_power_runtime_off(kbdev);
dev_dbg(dev, "runtime suspend\n");
}
return ret;
}
#endif /* KBASE_PM_RUNTIME */
/**
* kbase_device_runtime_resume - Runtime resume callback from the OS.
*
* @dev: The device to suspend
*
* This is called by Linux when the device should go into a fully active state.
*
* Return: A standard Linux error code
*/
#ifdef KBASE_PM_RUNTIME
static int kbase_device_runtime_resume(struct device *dev)
{
int ret = 0;
struct kbase_device *kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
dev_dbg(dev, "Callback %s\n", __func__);
KBASE_KTRACE_ADD(kbdev, PM_RUNTIME_RESUME_CALLBACK, NULL, 0);
if (kbdev->pm.backend.callback_power_runtime_on) {
ret = kbdev->pm.backend.callback_power_runtime_on(kbdev);
dev_dbg(dev, "runtime resume\n");
}
#ifdef CONFIG_MALI_MIDGARD_DVFS
kbase_pm_metrics_start(kbdev);
#endif
#ifdef CONFIG_MALI_DEVFREQ
if (kbdev->devfreq)
kbase_devfreq_enqueue_work(kbdev, DEVFREQ_WORK_RESUME);
#endif
return ret;
}
#endif /* KBASE_PM_RUNTIME */
#ifdef KBASE_PM_RUNTIME
/**
* kbase_device_runtime_idle - Runtime idle callback from the OS.
* @dev: The device to suspend
*
* This is called by Linux when the device appears to be inactive and it might
* be placed into a low power state.
*
* Return: 0 if device can be suspended, non-zero to avoid runtime autosuspend,
* otherwise a standard Linux error code
*/
static int kbase_device_runtime_idle(struct device *dev)
{
struct kbase_device *kbdev = to_kbase_device(dev);
if (!kbdev)
return -ENODEV;
dev_dbg(dev, "Callback %s\n", __func__);
/* Use platform specific implementation if it exists. */
if (kbdev->pm.backend.callback_power_runtime_idle)
return kbdev->pm.backend.callback_power_runtime_idle(kbdev);
/* Just need to update the device's last busy mark. Kernel will respect
* the autosuspend delay and so won't suspend the device immediately.
*/
pm_runtime_mark_last_busy(kbdev->dev);
return 0;
}
#endif /* KBASE_PM_RUNTIME */
/* The power management operations for the platform driver.
*/
static const struct dev_pm_ops kbase_pm_ops = {
.suspend = kbase_device_suspend,
.resume = kbase_device_resume,
#ifdef KBASE_PM_RUNTIME
.runtime_suspend = kbase_device_runtime_suspend,
.runtime_resume = kbase_device_runtime_resume,
.runtime_idle = kbase_device_runtime_idle,
#endif /* KBASE_PM_RUNTIME */
};
#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id kbase_dt_ids[] = {
{ .compatible = "arm,malit6xx" },
{ .compatible = "arm,mali-midgard" },
{ .compatible = "arm,mali-bifrost" },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, kbase_dt_ids);
#endif
static struct platform_driver kbase_platform_driver = {
.probe = kbase_platform_device_probe,
.remove = kbase_platform_device_remove,
.driver = {
.name = kbase_drv_name,
.pm = &kbase_pm_ops,
.of_match_table = of_match_ptr(kbase_dt_ids),
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
};
/*
* The driver will not provide a shortcut to create the Mali platform device
* anymore when using Device Tree.
*/
#if IS_ENABLED(CONFIG_OF)
module_platform_driver(kbase_platform_driver);
#else
static int __init kbase_driver_init(void)
{
int ret;
ret = kbase_platform_register();
if (ret)
return ret;
ret = platform_driver_register(&kbase_platform_driver);
if (ret)
kbase_platform_unregister();
return ret;
}
static void __exit kbase_driver_exit(void)
{
platform_driver_unregister(&kbase_platform_driver);
kbase_platform_unregister();
}
module_init(kbase_driver_init);
module_exit(kbase_driver_exit);
#endif /* CONFIG_OF */
MODULE_LICENSE("GPL");
MODULE_VERSION(MALI_RELEASE_NAME " (UK version " \
__stringify(BASE_UK_VERSION_MAJOR) "." \
__stringify(BASE_UK_VERSION_MINOR) ")");
MODULE_SOFTDEP("pre: mali_pixel");
MODULE_INFO(import_ns, "DMA_BUF");
#define CREATE_TRACE_POINTS
/* Create the trace points (otherwise we just get code to call a tracepoint) */
#include "mali_linux_trace.h"
#ifdef CONFIG_MALI_GATOR_SUPPORT
EXPORT_TRACEPOINT_SYMBOL_GPL(mali_job_slots_event);
EXPORT_TRACEPOINT_SYMBOL_GPL(mali_pm_status);
EXPORT_TRACEPOINT_SYMBOL_GPL(mali_page_fault_insert_pages);
EXPORT_TRACEPOINT_SYMBOL_GPL(mali_total_alloc_pages_change);
void kbase_trace_mali_pm_status(u32 dev_id, u32 event, u64 value)
{
trace_mali_pm_status(dev_id, event, value);
}
void kbase_trace_mali_job_slots_event(u32 dev_id, u32 event, const struct kbase_context *kctx, u8 atom_id)
{
trace_mali_job_slots_event(dev_id, event,
(kctx != NULL ? kctx->tgid : 0),
(kctx != NULL ? kctx->pid : 0),
atom_id);
}
void kbase_trace_mali_page_fault_insert_pages(u32 dev_id, int event, u32 value)
{
trace_mali_page_fault_insert_pages(dev_id, event, value);
}
void kbase_trace_mali_total_alloc_pages_change(u32 dev_id, long long event)
{
trace_mali_total_alloc_pages_change(dev_id, event);
}
#endif /* CONFIG_MALI_GATOR_SUPPORT */