blob: 93681cb13f43759c187e0a781be2aba1f98848fc [file] [log] [blame]
/*
* Copyright 2016 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifdef DRV_AMDGPU
#include <amdgpu.h>
#include <amdgpu_drm.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <xf86drm.h>
#include "dri.h"
#include "drv_priv.h"
#include "helpers.h"
#include "util.h"
// clang-format off
#define DRI_PATH STRINGIZE(DRI_DRIVER_DIR/radeonsi_dri.so)
// clang-format on
#define TILE_TYPE_LINEAR 0
/* DRI backend decides tiling in this case. */
#define TILE_TYPE_DRI 1
/* Height alignement for Encoder/Decoder buffers */
#define CHROME_HEIGHT_ALIGN 16
struct amdgpu_priv {
struct dri_driver dri;
int drm_version;
/* sdma */
struct drm_amdgpu_info_device dev_info;
uint32_t sdma_ctx;
uint32_t sdma_cmdbuf_bo;
uint64_t sdma_cmdbuf_addr;
uint64_t sdma_cmdbuf_size;
uint32_t *sdma_cmdbuf_map;
};
struct amdgpu_linear_vma_priv {
uint32_t handle;
uint32_t map_flags;
};
const static uint32_t render_target_formats[] = {
DRM_FORMAT_ABGR8888, DRM_FORMAT_ARGB8888, DRM_FORMAT_RGB565,
DRM_FORMAT_XBGR8888, DRM_FORMAT_XRGB8888, DRM_FORMAT_ABGR2101010,
DRM_FORMAT_ARGB2101010, DRM_FORMAT_XBGR2101010, DRM_FORMAT_XRGB2101010,
};
const static uint32_t texture_source_formats[] = { DRM_FORMAT_GR88, DRM_FORMAT_R8,
DRM_FORMAT_NV21, DRM_FORMAT_NV12,
DRM_FORMAT_YVU420_ANDROID, DRM_FORMAT_YVU420 };
static int query_dev_info(int fd, struct drm_amdgpu_info_device *dev_info)
{
struct drm_amdgpu_info info_args = { 0 };
info_args.return_pointer = (uintptr_t)dev_info;
info_args.return_size = sizeof(*dev_info);
info_args.query = AMDGPU_INFO_DEV_INFO;
return drmCommandWrite(fd, DRM_AMDGPU_INFO, &info_args, sizeof(info_args));
}
static int sdma_init(struct amdgpu_priv *priv, int fd)
{
union drm_amdgpu_ctx ctx_args = { { 0 } };
union drm_amdgpu_gem_create gem_create = { { 0 } };
struct drm_amdgpu_gem_va va_args = { 0 };
union drm_amdgpu_gem_mmap gem_map = { { 0 } };
struct drm_gem_close gem_close = { 0 };
int ret;
/* Ensure we can make a submission without BO lists. */
if (priv->drm_version < 27)
return 0;
/* Anything outside this range needs adjustments to the SDMA copy commands */
if (priv->dev_info.family < AMDGPU_FAMILY_CI || priv->dev_info.family > AMDGPU_FAMILY_NV)
return 0;
ctx_args.in.op = AMDGPU_CTX_OP_ALLOC_CTX;
ret = drmCommandWriteRead(fd, DRM_AMDGPU_CTX, &ctx_args, sizeof(ctx_args));
if (ret < 0)
return ret;
priv->sdma_ctx = ctx_args.out.alloc.ctx_id;
priv->sdma_cmdbuf_size = ALIGN(4096, priv->dev_info.virtual_address_alignment);
gem_create.in.bo_size = priv->sdma_cmdbuf_size;
gem_create.in.alignment = 4096;
gem_create.in.domains = AMDGPU_GEM_DOMAIN_GTT;
ret = drmCommandWriteRead(fd, DRM_AMDGPU_GEM_CREATE, &gem_create, sizeof(gem_create));
if (ret < 0)
goto fail_ctx;
priv->sdma_cmdbuf_bo = gem_create.out.handle;
priv->sdma_cmdbuf_addr =
ALIGN(priv->dev_info.virtual_address_offset, priv->dev_info.virtual_address_alignment);
/* Map the buffer into the GPU address space so we can use it from the GPU */
va_args.handle = priv->sdma_cmdbuf_bo;
va_args.operation = AMDGPU_VA_OP_MAP;
va_args.flags = AMDGPU_VM_PAGE_READABLE | AMDGPU_VM_PAGE_EXECUTABLE;
va_args.va_address = priv->sdma_cmdbuf_addr;
va_args.offset_in_bo = 0;
va_args.map_size = priv->sdma_cmdbuf_size;
ret = drmCommandWrite(fd, DRM_AMDGPU_GEM_VA, &va_args, sizeof(va_args));
if (ret)
goto fail_bo;
gem_map.in.handle = priv->sdma_cmdbuf_bo;
ret = drmIoctl(fd, DRM_IOCTL_AMDGPU_GEM_MMAP, &gem_map);
if (ret)
goto fail_va;
priv->sdma_cmdbuf_map = mmap(0, priv->sdma_cmdbuf_size, PROT_READ | PROT_WRITE, MAP_SHARED,
fd, gem_map.out.addr_ptr);
if (priv->sdma_cmdbuf_map == MAP_FAILED) {
priv->sdma_cmdbuf_map = NULL;
ret = -ENOMEM;
goto fail_va;
}
return 0;
fail_va:
va_args.operation = AMDGPU_VA_OP_UNMAP;
va_args.flags = 0;
drmCommandWrite(fd, DRM_AMDGPU_GEM_VA, &va_args, sizeof(va_args));
fail_bo:
gem_close.handle = priv->sdma_cmdbuf_bo;
drmIoctl(fd, DRM_IOCTL_GEM_CLOSE, &gem_close);
fail_ctx:
memset(&ctx_args, 0, sizeof(ctx_args));
ctx_args.in.op = AMDGPU_CTX_OP_FREE_CTX;
ctx_args.in.ctx_id = priv->sdma_ctx;
drmCommandWriteRead(fd, DRM_AMDGPU_CTX, &ctx_args, sizeof(ctx_args));
return ret;
}
static void sdma_finish(struct amdgpu_priv *priv, int fd)
{
union drm_amdgpu_ctx ctx_args = { { 0 } };
struct drm_amdgpu_gem_va va_args = { 0 };
struct drm_gem_close gem_close = { 0 };
if (!priv->sdma_cmdbuf_map)
return;
va_args.handle = priv->sdma_cmdbuf_bo;
va_args.operation = AMDGPU_VA_OP_UNMAP;
va_args.flags = 0;
va_args.va_address = priv->sdma_cmdbuf_addr;
va_args.offset_in_bo = 0;
va_args.map_size = priv->sdma_cmdbuf_size;
drmCommandWrite(fd, DRM_AMDGPU_GEM_VA, &va_args, sizeof(va_args));
gem_close.handle = priv->sdma_cmdbuf_bo;
drmIoctl(fd, DRM_IOCTL_GEM_CLOSE, &gem_close);
ctx_args.in.op = AMDGPU_CTX_OP_FREE_CTX;
ctx_args.in.ctx_id = priv->sdma_ctx;
drmCommandWriteRead(fd, DRM_AMDGPU_CTX, &ctx_args, sizeof(ctx_args));
}
static int sdma_copy(struct amdgpu_priv *priv, int fd, uint32_t src_handle, uint32_t dst_handle,
uint64_t size)
{
const uint64_t max_size_per_cmd = 0x3fff00;
const uint32_t cmd_size = 7 * sizeof(uint32_t); /* 7 dwords, see loop below. */
const uint64_t max_commands = priv->sdma_cmdbuf_size / cmd_size;
uint64_t src_addr = priv->sdma_cmdbuf_addr + priv->sdma_cmdbuf_size;
uint64_t dst_addr = src_addr + size;
struct drm_amdgpu_gem_va va_args = { 0 };
unsigned cmd = 0;
uint64_t remaining_size = size;
uint64_t cur_src_addr = src_addr;
uint64_t cur_dst_addr = dst_addr;
struct drm_amdgpu_cs_chunk_ib ib = { 0 };
struct drm_amdgpu_cs_chunk chunks[2] = { { 0 } };
uint64_t chunk_ptrs[2];
union drm_amdgpu_cs cs = { { 0 } };
struct drm_amdgpu_bo_list_in bo_list = { 0 };
struct drm_amdgpu_bo_list_entry bo_list_entries[3] = { { 0 } };
union drm_amdgpu_wait_cs wait_cs = { { 0 } };
int ret = 0;
if (size > UINT64_MAX - max_size_per_cmd ||
DIV_ROUND_UP(size, max_size_per_cmd) > max_commands)
return -ENOMEM;
/* Map both buffers into the GPU address space so we can access them from the GPU. */
va_args.handle = src_handle;
va_args.operation = AMDGPU_VA_OP_MAP;
va_args.flags = AMDGPU_VM_PAGE_READABLE | AMDGPU_VM_DELAY_UPDATE;
va_args.va_address = src_addr;
va_args.map_size = size;
ret = drmCommandWrite(fd, DRM_AMDGPU_GEM_VA, &va_args, sizeof(va_args));
if (ret)
return ret;
va_args.handle = dst_handle;
va_args.flags = AMDGPU_VM_PAGE_READABLE | AMDGPU_VM_PAGE_WRITEABLE | AMDGPU_VM_DELAY_UPDATE;
va_args.va_address = dst_addr;
ret = drmCommandWrite(fd, DRM_AMDGPU_GEM_VA, &va_args, sizeof(va_args));
if (ret)
goto unmap_src;
while (remaining_size) {
uint64_t cur_size = remaining_size;
if (cur_size > max_size_per_cmd)
cur_size = max_size_per_cmd;
priv->sdma_cmdbuf_map[cmd++] = 0x01; /* linear copy */
priv->sdma_cmdbuf_map[cmd++] =
priv->dev_info.family >= AMDGPU_FAMILY_AI ? (cur_size - 1) : cur_size;
priv->sdma_cmdbuf_map[cmd++] = 0;
priv->sdma_cmdbuf_map[cmd++] = cur_src_addr;
priv->sdma_cmdbuf_map[cmd++] = cur_src_addr >> 32;
priv->sdma_cmdbuf_map[cmd++] = cur_dst_addr;
priv->sdma_cmdbuf_map[cmd++] = cur_dst_addr >> 32;
remaining_size -= cur_size;
cur_src_addr += cur_size;
cur_dst_addr += cur_size;
}
ib.va_start = priv->sdma_cmdbuf_addr;
ib.ib_bytes = cmd * 4;
ib.ip_type = AMDGPU_HW_IP_DMA;
chunks[1].chunk_id = AMDGPU_CHUNK_ID_IB;
chunks[1].length_dw = sizeof(ib) / 4;
chunks[1].chunk_data = (uintptr_t)&ib;
bo_list_entries[0].bo_handle = priv->sdma_cmdbuf_bo;
bo_list_entries[0].bo_priority = 8; /* Middle of range, like RADV. */
bo_list_entries[1].bo_handle = src_handle;
bo_list_entries[1].bo_priority = 8;
bo_list_entries[2].bo_handle = dst_handle;
bo_list_entries[2].bo_priority = 8;
bo_list.bo_number = 3;
bo_list.bo_info_size = sizeof(bo_list_entries[0]);
bo_list.bo_info_ptr = (uintptr_t)bo_list_entries;
chunks[0].chunk_id = AMDGPU_CHUNK_ID_BO_HANDLES;
chunks[0].length_dw = sizeof(bo_list) / 4;
chunks[0].chunk_data = (uintptr_t)&bo_list;
chunk_ptrs[0] = (uintptr_t)&chunks[0];
chunk_ptrs[1] = (uintptr_t)&chunks[1];
cs.in.ctx_id = priv->sdma_ctx;
cs.in.num_chunks = 2;
cs.in.chunks = (uintptr_t)chunk_ptrs;
ret = drmCommandWriteRead(fd, DRM_AMDGPU_CS, &cs, sizeof(cs));
if (ret) {
drv_log("SDMA copy command buffer submission failed %d\n", ret);
goto unmap_dst;
}
wait_cs.in.handle = cs.out.handle;
wait_cs.in.ip_type = AMDGPU_HW_IP_DMA;
wait_cs.in.ctx_id = priv->sdma_ctx;
wait_cs.in.timeout = INT64_MAX;
ret = drmCommandWriteRead(fd, DRM_AMDGPU_WAIT_CS, &wait_cs, sizeof(wait_cs));
if (ret) {
drv_log("Could not wait for CS to finish\n");
} else if (wait_cs.out.status) {
drv_log("Infinite wait timed out, likely GPU hang.\n");
ret = -ENODEV;
}
unmap_dst:
va_args.handle = dst_handle;
va_args.operation = AMDGPU_VA_OP_UNMAP;
va_args.flags = AMDGPU_VM_DELAY_UPDATE;
va_args.va_address = dst_addr;
drmCommandWrite(fd, DRM_AMDGPU_GEM_VA, &va_args, sizeof(va_args));
unmap_src:
va_args.handle = src_handle;
va_args.operation = AMDGPU_VA_OP_UNMAP;
va_args.flags = AMDGPU_VM_DELAY_UPDATE;
va_args.va_address = src_addr;
drmCommandWrite(fd, DRM_AMDGPU_GEM_VA, &va_args, sizeof(va_args));
return ret;
}
static int amdgpu_init(struct driver *drv)
{
struct amdgpu_priv *priv;
drmVersionPtr drm_version;
struct format_metadata metadata;
uint64_t use_flags = BO_USE_RENDER_MASK;
priv = calloc(1, sizeof(struct amdgpu_priv));
if (!priv)
return -ENOMEM;
drm_version = drmGetVersion(drv_get_fd(drv));
if (!drm_version) {
free(priv);
return -ENODEV;
}
priv->drm_version = drm_version->version_minor;
drmFreeVersion(drm_version);
drv->priv = priv;
if (query_dev_info(drv_get_fd(drv), &priv->dev_info)) {
free(priv);
drv->priv = NULL;
return -ENODEV;
}
if (dri_init(drv, DRI_PATH, "radeonsi")) {
free(priv);
drv->priv = NULL;
return -ENODEV;
}
if (sdma_init(priv, drv_get_fd(drv))) {
drv_log("SDMA init failed\n");
/* Continue, as we can still succesfully map things without SDMA. */
}
metadata.tiling = TILE_TYPE_LINEAR;
metadata.priority = 1;
metadata.modifier = DRM_FORMAT_MOD_LINEAR;
drv_add_combinations(drv, render_target_formats, ARRAY_SIZE(render_target_formats),
&metadata, use_flags);
drv_add_combinations(drv, texture_source_formats, ARRAY_SIZE(texture_source_formats),
&metadata, BO_USE_TEXTURE_MASK);
/* NV12 format for camera, display, decoding and encoding. */
drv_modify_combination(drv, DRM_FORMAT_NV12, &metadata,
BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE | BO_USE_SCANOUT |
BO_USE_HW_VIDEO_DECODER | BO_USE_HW_VIDEO_ENCODER);
/* Android CTS tests require this. */
drv_add_combination(drv, DRM_FORMAT_BGR888, &metadata, BO_USE_SW_MASK);
/* Linear formats supported by display. */
drv_modify_combination(drv, DRM_FORMAT_ARGB8888, &metadata, BO_USE_CURSOR | BO_USE_SCANOUT);
drv_modify_combination(drv, DRM_FORMAT_XRGB8888, &metadata, BO_USE_CURSOR | BO_USE_SCANOUT);
drv_modify_combination(drv, DRM_FORMAT_ABGR8888, &metadata, BO_USE_SCANOUT);
drv_modify_combination(drv, DRM_FORMAT_XBGR8888, &metadata, BO_USE_SCANOUT);
drv_modify_combination(drv, DRM_FORMAT_ABGR2101010, &metadata, BO_USE_SCANOUT);
drv_modify_combination(drv, DRM_FORMAT_ARGB2101010, &metadata, BO_USE_SCANOUT);
drv_modify_combination(drv, DRM_FORMAT_XBGR2101010, &metadata, BO_USE_SCANOUT);
drv_modify_combination(drv, DRM_FORMAT_XRGB2101010, &metadata, BO_USE_SCANOUT);
drv_modify_combination(drv, DRM_FORMAT_NV21, &metadata, BO_USE_SCANOUT);
/*
* R8 format is used for Android's HAL_PIXEL_FORMAT_BLOB and is used for JPEG snapshots
* from camera and input/output from hardware decoder/encoder.
*/
drv_modify_combination(drv, DRM_FORMAT_R8, &metadata,
BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE | BO_USE_HW_VIDEO_DECODER |
BO_USE_HW_VIDEO_ENCODER);
/*
* The following formats will be allocated by the DRI backend and may be potentially tiled.
* Since format modifier support hasn't been implemented fully yet, it's not
* possible to enumerate the different types of buffers (like i915 can).
*/
use_flags &= ~BO_USE_RENDERSCRIPT;
use_flags &= ~BO_USE_SW_WRITE_OFTEN;
use_flags &= ~BO_USE_SW_READ_OFTEN;
use_flags &= ~BO_USE_LINEAR;
metadata.tiling = TILE_TYPE_DRI;
metadata.priority = 2;
drv_add_combinations(drv, render_target_formats, ARRAY_SIZE(render_target_formats),
&metadata, use_flags);
/* Potentially tiled formats supported by display. */
drv_modify_combination(drv, DRM_FORMAT_ARGB8888, &metadata, BO_USE_CURSOR | BO_USE_SCANOUT);
drv_modify_combination(drv, DRM_FORMAT_XRGB8888, &metadata, BO_USE_CURSOR | BO_USE_SCANOUT);
drv_modify_combination(drv, DRM_FORMAT_ABGR8888, &metadata, BO_USE_SCANOUT);
drv_modify_combination(drv, DRM_FORMAT_XBGR8888, &metadata, BO_USE_SCANOUT);
drv_modify_combination(drv, DRM_FORMAT_ABGR2101010, &metadata, BO_USE_SCANOUT);
drv_modify_combination(drv, DRM_FORMAT_ARGB2101010, &metadata, BO_USE_SCANOUT);
drv_modify_combination(drv, DRM_FORMAT_XBGR2101010, &metadata, BO_USE_SCANOUT);
drv_modify_combination(drv, DRM_FORMAT_XRGB2101010, &metadata, BO_USE_SCANOUT);
return 0;
}
static void amdgpu_close(struct driver *drv)
{
sdma_finish(drv->priv, drv_get_fd(drv));
dri_close(drv);
free(drv->priv);
drv->priv = NULL;
}
static int amdgpu_create_bo_linear(struct bo *bo, uint32_t width, uint32_t height, uint32_t format,
uint64_t use_flags)
{
int ret;
size_t num_planes;
uint32_t plane, stride;
union drm_amdgpu_gem_create gem_create = { { 0 } };
struct amdgpu_priv *priv = bo->drv->priv;
stride = drv_stride_from_format(format, width, 0);
num_planes = drv_num_planes_from_format(format);
/*
* For multiplane formats, align the stride to 512 to ensure that subsample strides are 256
* aligned. This uses more memory than necessary since the first plane only needs to be
* 256 aligned, but it's acceptable for a short-term fix. It's probably safe for other gpu
* families, but let's restrict it to Raven for now (b/171013552).
* */
if (priv->dev_info.family == AMDGPU_FAMILY_RV && num_planes > 1)
stride = ALIGN(stride, 512);
else
stride = ALIGN(stride, 256);
/*
* Currently, allocator used by chrome aligns the height for Encoder/
* Decoder buffers while allocator used by android(gralloc/minigbm)
* doesn't provide any aligment.
*
* See b/153130069
*/
if (use_flags & (BO_USE_HW_VIDEO_DECODER | BO_USE_HW_VIDEO_ENCODER))
height = ALIGN(height, CHROME_HEIGHT_ALIGN);
drv_bo_from_format(bo, stride, height, format);
gem_create.in.bo_size =
ALIGN(bo->meta.total_size, priv->dev_info.virtual_address_alignment);
gem_create.in.alignment = 256;
gem_create.in.domain_flags = 0;
if (use_flags & (BO_USE_LINEAR | BO_USE_SW_MASK))
gem_create.in.domain_flags |= AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
gem_create.in.domains = AMDGPU_GEM_DOMAIN_GTT;
/* Scanout in GTT requires USWC, otherwise try to use cachable memory
* for buffers that are read often, because uncacheable reads can be
* very slow. USWC should be faster on the GPU though. */
if ((use_flags & BO_USE_SCANOUT) || !(use_flags & BO_USE_SW_READ_OFTEN))
gem_create.in.domain_flags |= AMDGPU_GEM_CREATE_CPU_GTT_USWC;
/* Allocate the buffer with the preferred heap. */
ret = drmCommandWriteRead(drv_get_fd(bo->drv), DRM_AMDGPU_GEM_CREATE, &gem_create,
sizeof(gem_create));
if (ret < 0)
return ret;
for (plane = 0; plane < bo->meta.num_planes; plane++)
bo->handles[plane].u32 = gem_create.out.handle;
bo->meta.format_modifiers[0] = DRM_FORMAT_MOD_LINEAR;
return 0;
}
static int amdgpu_create_bo(struct bo *bo, uint32_t width, uint32_t height, uint32_t format,
uint64_t use_flags)
{
struct combination *combo;
combo = drv_get_combination(bo->drv, format, use_flags);
if (!combo)
return -EINVAL;
if (combo->metadata.tiling == TILE_TYPE_DRI) {
bool needs_alignment = false;
#ifdef __ANDROID__
/*
* Currently, the gralloc API doesn't differentiate between allocation time and map
* time strides. A workaround for amdgpu DRI buffers is to always to align to 256 at
* allocation time.
*
* See b/115946221,b/117942643
*/
if (use_flags & (BO_USE_SW_MASK))
needs_alignment = true;
#endif
// See b/122049612
if (use_flags & (BO_USE_SCANOUT))
needs_alignment = true;
if (needs_alignment) {
uint32_t bytes_per_pixel = drv_bytes_per_pixel_from_format(format, 0);
width = ALIGN(width, 256 / bytes_per_pixel);
}
return dri_bo_create(bo, width, height, format, use_flags);
}
return amdgpu_create_bo_linear(bo, width, height, format, use_flags);
}
static int amdgpu_create_bo_with_modifiers(struct bo *bo, uint32_t width, uint32_t height,
uint32_t format, const uint64_t *modifiers,
uint32_t count)
{
bool only_use_linear = true;
for (uint32_t i = 0; i < count; ++i)
if (modifiers[i] != DRM_FORMAT_MOD_LINEAR)
only_use_linear = false;
if (only_use_linear)
return amdgpu_create_bo_linear(bo, width, height, format, BO_USE_SCANOUT);
return dri_bo_create_with_modifiers(bo, width, height, format, modifiers, count);
}
static int amdgpu_import_bo(struct bo *bo, struct drv_import_fd_data *data)
{
bool dri_tiling = data->format_modifiers[0] != DRM_FORMAT_MOD_LINEAR;
if (data->format_modifiers[0] == DRM_FORMAT_MOD_INVALID) {
struct combination *combo;
combo = drv_get_combination(bo->drv, data->format, data->use_flags);
if (!combo)
return -EINVAL;
dri_tiling = combo->metadata.tiling == TILE_TYPE_DRI;
}
if (dri_tiling)
return dri_bo_import(bo, data);
else
return drv_prime_bo_import(bo, data);
}
static int amdgpu_destroy_bo(struct bo *bo)
{
if (bo->priv)
return dri_bo_destroy(bo);
else
return drv_gem_bo_destroy(bo);
}
static void *amdgpu_map_bo(struct bo *bo, struct vma *vma, size_t plane, uint32_t map_flags)
{
void *addr = MAP_FAILED;
int ret;
union drm_amdgpu_gem_mmap gem_map = { { 0 } };
struct drm_amdgpu_gem_create_in bo_info = { 0 };
struct drm_amdgpu_gem_op gem_op = { 0 };
uint32_t handle = bo->handles[plane].u32;
struct amdgpu_linear_vma_priv *priv = NULL;
struct amdgpu_priv *drv_priv;
if (bo->priv)
return dri_bo_map(bo, vma, plane, map_flags);
drv_priv = bo->drv->priv;
gem_op.handle = handle;
gem_op.op = AMDGPU_GEM_OP_GET_GEM_CREATE_INFO;
gem_op.value = (uintptr_t)&bo_info;
ret = drmCommandWriteRead(bo->drv->fd, DRM_AMDGPU_GEM_OP, &gem_op, sizeof(gem_op));
if (ret)
return MAP_FAILED;
vma->length = bo_info.bo_size;
if (((bo_info.domains & AMDGPU_GEM_DOMAIN_VRAM) ||
(bo_info.domain_flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC)) &&
drv_priv->sdma_cmdbuf_map) {
union drm_amdgpu_gem_create gem_create = { { 0 } };
priv = calloc(1, sizeof(struct amdgpu_linear_vma_priv));
if (!priv)
return MAP_FAILED;
gem_create.in.bo_size = bo_info.bo_size;
gem_create.in.alignment = 4096;
gem_create.in.domains = AMDGPU_GEM_DOMAIN_GTT;
ret = drmCommandWriteRead(bo->drv->fd, DRM_AMDGPU_GEM_CREATE, &gem_create,
sizeof(gem_create));
if (ret < 0) {
drv_log("GEM create failed\n");
free(priv);
return MAP_FAILED;
}
priv->map_flags = map_flags;
handle = priv->handle = gem_create.out.handle;
ret = sdma_copy(bo->drv->priv, bo->drv->fd, bo->handles[0].u32, priv->handle,
bo_info.bo_size);
if (ret) {
drv_log("SDMA copy for read failed\n");
goto fail;
}
}
gem_map.in.handle = handle;
ret = drmIoctl(bo->drv->fd, DRM_IOCTL_AMDGPU_GEM_MMAP, &gem_map);
if (ret) {
drv_log("DRM_IOCTL_AMDGPU_GEM_MMAP failed\n");
goto fail;
}
addr = mmap(0, bo->meta.total_size, drv_get_prot(map_flags), MAP_SHARED, bo->drv->fd,
gem_map.out.addr_ptr);
if (addr == MAP_FAILED)
goto fail;
vma->priv = priv;
return addr;
fail:
if (priv) {
struct drm_gem_close gem_close = { 0 };
gem_close.handle = priv->handle;
drmIoctl(bo->drv->fd, DRM_IOCTL_GEM_CLOSE, &gem_close);
free(priv);
}
return MAP_FAILED;
}
static int amdgpu_unmap_bo(struct bo *bo, struct vma *vma)
{
if (bo->priv)
return dri_bo_unmap(bo, vma);
else {
int r = munmap(vma->addr, vma->length);
if (r)
return r;
if (vma->priv) {
struct amdgpu_linear_vma_priv *priv = vma->priv;
struct drm_gem_close gem_close = { 0 };
if (BO_MAP_WRITE & priv->map_flags) {
r = sdma_copy(bo->drv->priv, bo->drv->fd, priv->handle,
bo->handles[0].u32, vma->length);
if (r)
return r;
}
gem_close.handle = priv->handle;
r = drmIoctl(bo->drv->fd, DRM_IOCTL_GEM_CLOSE, &gem_close);
}
return 0;
}
}
static int amdgpu_bo_invalidate(struct bo *bo, struct mapping *mapping)
{
int ret;
union drm_amdgpu_gem_wait_idle wait_idle = { { 0 } };
if (bo->priv)
return 0;
wait_idle.in.handle = bo->handles[0].u32;
wait_idle.in.timeout = AMDGPU_TIMEOUT_INFINITE;
ret = drmCommandWriteRead(bo->drv->fd, DRM_AMDGPU_GEM_WAIT_IDLE, &wait_idle,
sizeof(wait_idle));
if (ret < 0) {
drv_log("DRM_AMDGPU_GEM_WAIT_IDLE failed with %d\n", ret);
return ret;
}
if (ret == 0 && wait_idle.out.status)
drv_log("DRM_AMDGPU_GEM_WAIT_IDLE BO is busy\n");
return 0;
}
static uint32_t amdgpu_resolve_format(struct driver *drv, uint32_t format, uint64_t use_flags)
{
switch (format) {
case DRM_FORMAT_FLEX_IMPLEMENTATION_DEFINED:
/* Camera subsystem requires NV12. */
if (use_flags & (BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE))
return DRM_FORMAT_NV12;
/*HACK: See b/28671744 */
return DRM_FORMAT_XBGR8888;
case DRM_FORMAT_FLEX_YCbCr_420_888:
return DRM_FORMAT_NV12;
default:
return format;
}
}
const struct backend backend_amdgpu = {
.name = "amdgpu",
.init = amdgpu_init,
.close = amdgpu_close,
.bo_create = amdgpu_create_bo,
.bo_create_with_modifiers = amdgpu_create_bo_with_modifiers,
.bo_destroy = amdgpu_destroy_bo,
.bo_import = amdgpu_import_bo,
.bo_map = amdgpu_map_bo,
.bo_unmap = amdgpu_unmap_bo,
.bo_invalidate = amdgpu_bo_invalidate,
.resolve_format = amdgpu_resolve_format,
.num_planes_from_modifier = dri_num_planes_from_modifier,
};
#endif