blob: 6dfc48b63b718b4c4e6f5c62794db5ce279b18a4 [file] [log] [blame]
/*
* Copyright(c) 2011-2016 Intel Corporation. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Authors:
* Kevin Tian <kevin.tian@intel.com>
* Eddie Dong <eddie.dong@intel.com>
*
* Contributors:
* Niu Bing <bing.niu@intel.com>
* Zhi Wang <zhi.a.wang@intel.com>
*
*/
#ifndef _GVT_H_
#define _GVT_H_
#include "debug.h"
#include "hypercall.h"
#include "mmio.h"
#include "reg.h"
#include "interrupt.h"
#include "gtt.h"
#include "display.h"
#include "edid.h"
#include "execlist.h"
#include "scheduler.h"
#include "sched_policy.h"
#include "render.h"
#include "cmd_parser.h"
#define GVT_MAX_VGPU 8
enum {
INTEL_GVT_HYPERVISOR_XEN = 0,
INTEL_GVT_HYPERVISOR_KVM,
};
struct intel_gvt_host {
bool initialized;
int hypervisor_type;
struct intel_gvt_mpt *mpt;
};
extern struct intel_gvt_host intel_gvt_host;
/* Describe per-platform limitations. */
struct intel_gvt_device_info {
u32 max_support_vgpus;
u32 cfg_space_size;
u32 mmio_size;
u32 mmio_bar;
unsigned long msi_cap_offset;
u32 gtt_start_offset;
u32 gtt_entry_size;
u32 gtt_entry_size_shift;
int gmadr_bytes_in_cmd;
u32 max_surface_size;
};
/* GM resources owned by a vGPU */
struct intel_vgpu_gm {
u64 aperture_sz;
u64 hidden_sz;
struct drm_mm_node low_gm_node;
struct drm_mm_node high_gm_node;
};
#define INTEL_GVT_MAX_NUM_FENCES 32
/* Fences owned by a vGPU */
struct intel_vgpu_fence {
struct drm_i915_fence_reg *regs[INTEL_GVT_MAX_NUM_FENCES];
u32 base;
u32 size;
};
struct intel_vgpu_mmio {
void *vreg;
void *sreg;
bool disable_warn_untrack;
};
#define INTEL_GVT_MAX_CFG_SPACE_SZ 256
#define INTEL_GVT_MAX_BAR_NUM 4
struct intel_vgpu_pci_bar {
u64 size;
bool tracked;
};
struct intel_vgpu_cfg_space {
unsigned char virtual_cfg_space[INTEL_GVT_MAX_CFG_SPACE_SZ];
struct intel_vgpu_pci_bar bar[INTEL_GVT_MAX_BAR_NUM];
};
#define vgpu_cfg_space(vgpu) ((vgpu)->cfg_space.virtual_cfg_space)
#define INTEL_GVT_MAX_PIPE 4
struct intel_vgpu_irq {
bool irq_warn_once[INTEL_GVT_EVENT_MAX];
DECLARE_BITMAP(flip_done_event[INTEL_GVT_MAX_PIPE],
INTEL_GVT_EVENT_MAX);
};
struct intel_vgpu_opregion {
void *va;
u32 gfn[INTEL_GVT_OPREGION_PAGES];
struct page *pages[INTEL_GVT_OPREGION_PAGES];
};
#define vgpu_opregion(vgpu) (&(vgpu->opregion))
#define INTEL_GVT_MAX_PORT 5
struct intel_vgpu_display {
struct intel_vgpu_i2c_edid i2c_edid;
struct intel_vgpu_port ports[INTEL_GVT_MAX_PORT];
struct intel_vgpu_sbi sbi;
};
struct intel_vgpu {
struct intel_gvt *gvt;
int id;
unsigned long handle; /* vGPU handle used by hypervisor MPT modules */
bool active;
bool pv_notified;
bool failsafe;
bool resetting;
void *sched_data;
struct intel_vgpu_fence fence;
struct intel_vgpu_gm gm;
struct intel_vgpu_cfg_space cfg_space;
struct intel_vgpu_mmio mmio;
struct intel_vgpu_irq irq;
struct intel_vgpu_gtt gtt;
struct intel_vgpu_opregion opregion;
struct intel_vgpu_display display;
struct intel_vgpu_execlist execlist[I915_NUM_ENGINES];
struct list_head workload_q_head[I915_NUM_ENGINES];
struct kmem_cache *workloads;
atomic_t running_workload_num;
DECLARE_BITMAP(tlb_handle_pending, I915_NUM_ENGINES);
struct i915_gem_context *shadow_ctx;
#if IS_ENABLED(CONFIG_DRM_I915_GVT_KVMGT)
struct {
struct mdev_device *mdev;
struct vfio_region *region;
int num_regions;
struct eventfd_ctx *intx_trigger;
struct eventfd_ctx *msi_trigger;
struct rb_root cache;
struct mutex cache_lock;
struct notifier_block iommu_notifier;
struct notifier_block group_notifier;
struct kvm *kvm;
struct work_struct release_work;
atomic_t released;
} vdev;
#endif
};
struct intel_gvt_gm {
unsigned long vgpu_allocated_low_gm_size;
unsigned long vgpu_allocated_high_gm_size;
};
struct intel_gvt_fence {
unsigned long vgpu_allocated_fence_num;
};
#define INTEL_GVT_MMIO_HASH_BITS 9
struct intel_gvt_mmio {
u32 *mmio_attribute;
DECLARE_HASHTABLE(mmio_info_table, INTEL_GVT_MMIO_HASH_BITS);
};
struct intel_gvt_firmware {
void *cfg_space;
void *mmio;
bool firmware_loaded;
};
struct intel_gvt_opregion {
void *opregion_va;
u32 opregion_pa;
};
#define NR_MAX_INTEL_VGPU_TYPES 20
struct intel_vgpu_type {
char name[16];
unsigned int avail_instance;
unsigned int low_gm_size;
unsigned int high_gm_size;
unsigned int fence;
enum intel_vgpu_edid resolution;
};
struct intel_gvt {
struct mutex lock;
struct drm_i915_private *dev_priv;
struct idr vgpu_idr; /* vGPU IDR pool */
struct intel_gvt_device_info device_info;
struct intel_gvt_gm gm;
struct intel_gvt_fence fence;
struct intel_gvt_mmio mmio;
struct intel_gvt_firmware firmware;
struct intel_gvt_irq irq;
struct intel_gvt_gtt gtt;
struct intel_gvt_opregion opregion;
struct intel_gvt_workload_scheduler scheduler;
struct notifier_block shadow_ctx_notifier_block[I915_NUM_ENGINES];
DECLARE_HASHTABLE(cmd_table, GVT_CMD_HASH_BITS);
struct intel_vgpu_type *types;
unsigned int num_types;
struct task_struct *service_thread;
wait_queue_head_t service_thread_wq;
unsigned long service_request;
};
static inline struct intel_gvt *to_gvt(struct drm_i915_private *i915)
{
return i915->gvt;
}
enum {
INTEL_GVT_REQUEST_EMULATE_VBLANK = 0,
};
static inline void intel_gvt_request_service(struct intel_gvt *gvt,
int service)
{
set_bit(service, (void *)&gvt->service_request);
wake_up(&gvt->service_thread_wq);
}
void intel_gvt_free_firmware(struct intel_gvt *gvt);
int intel_gvt_load_firmware(struct intel_gvt *gvt);
/* Aperture/GM space definitions for GVT device */
#define MB_TO_BYTES(mb) ((mb) << 20ULL)
#define BYTES_TO_MB(b) ((b) >> 20ULL)
#define HOST_LOW_GM_SIZE MB_TO_BYTES(128)
#define HOST_HIGH_GM_SIZE MB_TO_BYTES(384)
#define HOST_FENCE 4
/* Aperture/GM space definitions for GVT device */
#define gvt_aperture_sz(gvt) (gvt->dev_priv->ggtt.mappable_end)
#define gvt_aperture_pa_base(gvt) (gvt->dev_priv->ggtt.mappable_base)
#define gvt_ggtt_gm_sz(gvt) (gvt->dev_priv->ggtt.base.total)
#define gvt_ggtt_sz(gvt) \
((gvt->dev_priv->ggtt.base.total >> PAGE_SHIFT) << 3)
#define gvt_hidden_sz(gvt) (gvt_ggtt_gm_sz(gvt) - gvt_aperture_sz(gvt))
#define gvt_aperture_gmadr_base(gvt) (0)
#define gvt_aperture_gmadr_end(gvt) (gvt_aperture_gmadr_base(gvt) \
+ gvt_aperture_sz(gvt) - 1)
#define gvt_hidden_gmadr_base(gvt) (gvt_aperture_gmadr_base(gvt) \
+ gvt_aperture_sz(gvt))
#define gvt_hidden_gmadr_end(gvt) (gvt_hidden_gmadr_base(gvt) \
+ gvt_hidden_sz(gvt) - 1)
#define gvt_fence_sz(gvt) (gvt->dev_priv->num_fence_regs)
/* Aperture/GM space definitions for vGPU */
#define vgpu_aperture_offset(vgpu) ((vgpu)->gm.low_gm_node.start)
#define vgpu_hidden_offset(vgpu) ((vgpu)->gm.high_gm_node.start)
#define vgpu_aperture_sz(vgpu) ((vgpu)->gm.aperture_sz)
#define vgpu_hidden_sz(vgpu) ((vgpu)->gm.hidden_sz)
#define vgpu_aperture_pa_base(vgpu) \
(gvt_aperture_pa_base(vgpu->gvt) + vgpu_aperture_offset(vgpu))
#define vgpu_ggtt_gm_sz(vgpu) ((vgpu)->gm.aperture_sz + (vgpu)->gm.hidden_sz)
#define vgpu_aperture_pa_end(vgpu) \
(vgpu_aperture_pa_base(vgpu) + vgpu_aperture_sz(vgpu) - 1)
#define vgpu_aperture_gmadr_base(vgpu) (vgpu_aperture_offset(vgpu))
#define vgpu_aperture_gmadr_end(vgpu) \
(vgpu_aperture_gmadr_base(vgpu) + vgpu_aperture_sz(vgpu) - 1)
#define vgpu_hidden_gmadr_base(vgpu) (vgpu_hidden_offset(vgpu))
#define vgpu_hidden_gmadr_end(vgpu) \
(vgpu_hidden_gmadr_base(vgpu) + vgpu_hidden_sz(vgpu) - 1)
#define vgpu_fence_base(vgpu) (vgpu->fence.base)
#define vgpu_fence_sz(vgpu) (vgpu->fence.size)
struct intel_vgpu_creation_params {
__u64 handle;
__u64 low_gm_sz; /* in MB */
__u64 high_gm_sz; /* in MB */
__u64 fence_sz;
__u64 resolution;
__s32 primary;
__u64 vgpu_id;
};
int intel_vgpu_alloc_resource(struct intel_vgpu *vgpu,
struct intel_vgpu_creation_params *param);
void intel_vgpu_reset_resource(struct intel_vgpu *vgpu);
void intel_vgpu_free_resource(struct intel_vgpu *vgpu);
void intel_vgpu_write_fence(struct intel_vgpu *vgpu,
u32 fence, u64 value);
/* Macros for easily accessing vGPU virtual/shadow register */
#define vgpu_vreg(vgpu, reg) \
(*(u32 *)(vgpu->mmio.vreg + INTEL_GVT_MMIO_OFFSET(reg)))
#define vgpu_vreg8(vgpu, reg) \
(*(u8 *)(vgpu->mmio.vreg + INTEL_GVT_MMIO_OFFSET(reg)))
#define vgpu_vreg16(vgpu, reg) \
(*(u16 *)(vgpu->mmio.vreg + INTEL_GVT_MMIO_OFFSET(reg)))
#define vgpu_vreg64(vgpu, reg) \
(*(u64 *)(vgpu->mmio.vreg + INTEL_GVT_MMIO_OFFSET(reg)))
#define vgpu_sreg(vgpu, reg) \
(*(u32 *)(vgpu->mmio.sreg + INTEL_GVT_MMIO_OFFSET(reg)))
#define vgpu_sreg8(vgpu, reg) \
(*(u8 *)(vgpu->mmio.sreg + INTEL_GVT_MMIO_OFFSET(reg)))
#define vgpu_sreg16(vgpu, reg) \
(*(u16 *)(vgpu->mmio.sreg + INTEL_GVT_MMIO_OFFSET(reg)))
#define vgpu_sreg64(vgpu, reg) \
(*(u64 *)(vgpu->mmio.sreg + INTEL_GVT_MMIO_OFFSET(reg)))
#define for_each_active_vgpu(gvt, vgpu, id) \
idr_for_each_entry((&(gvt)->vgpu_idr), (vgpu), (id)) \
for_each_if(vgpu->active)
static inline void intel_vgpu_write_pci_bar(struct intel_vgpu *vgpu,
u32 offset, u32 val, bool low)
{
u32 *pval;
/* BAR offset should be 32 bits algiend */
offset = rounddown(offset, 4);
pval = (u32 *)(vgpu_cfg_space(vgpu) + offset);
if (low) {
/*
* only update bit 31 - bit 4,
* leave the bit 3 - bit 0 unchanged.
*/
*pval = (val & GENMASK(31, 4)) | (*pval & GENMASK(3, 0));
} else {
*pval = val;
}
}
int intel_gvt_init_vgpu_types(struct intel_gvt *gvt);
void intel_gvt_clean_vgpu_types(struct intel_gvt *gvt);
struct intel_vgpu *intel_gvt_create_vgpu(struct intel_gvt *gvt,
struct intel_vgpu_type *type);
void intel_gvt_destroy_vgpu(struct intel_vgpu *vgpu);
void intel_gvt_reset_vgpu_locked(struct intel_vgpu *vgpu, bool dmlr,
unsigned int engine_mask);
void intel_gvt_reset_vgpu(struct intel_vgpu *vgpu);
/* validating GM functions */
#define vgpu_gmadr_is_aperture(vgpu, gmadr) \
((gmadr >= vgpu_aperture_gmadr_base(vgpu)) && \
(gmadr <= vgpu_aperture_gmadr_end(vgpu)))
#define vgpu_gmadr_is_hidden(vgpu, gmadr) \
((gmadr >= vgpu_hidden_gmadr_base(vgpu)) && \
(gmadr <= vgpu_hidden_gmadr_end(vgpu)))
#define vgpu_gmadr_is_valid(vgpu, gmadr) \
((vgpu_gmadr_is_aperture(vgpu, gmadr) || \
(vgpu_gmadr_is_hidden(vgpu, gmadr))))
#define gvt_gmadr_is_aperture(gvt, gmadr) \
((gmadr >= gvt_aperture_gmadr_base(gvt)) && \
(gmadr <= gvt_aperture_gmadr_end(gvt)))
#define gvt_gmadr_is_hidden(gvt, gmadr) \
((gmadr >= gvt_hidden_gmadr_base(gvt)) && \
(gmadr <= gvt_hidden_gmadr_end(gvt)))
#define gvt_gmadr_is_valid(gvt, gmadr) \
(gvt_gmadr_is_aperture(gvt, gmadr) || \
gvt_gmadr_is_hidden(gvt, gmadr))
bool intel_gvt_ggtt_validate_range(struct intel_vgpu *vgpu, u64 addr, u32 size);
int intel_gvt_ggtt_gmadr_g2h(struct intel_vgpu *vgpu, u64 g_addr, u64 *h_addr);
int intel_gvt_ggtt_gmadr_h2g(struct intel_vgpu *vgpu, u64 h_addr, u64 *g_addr);
int intel_gvt_ggtt_index_g2h(struct intel_vgpu *vgpu, unsigned long g_index,
unsigned long *h_index);
int intel_gvt_ggtt_h2g_index(struct intel_vgpu *vgpu, unsigned long h_index,
unsigned long *g_index);
void intel_vgpu_init_cfg_space(struct intel_vgpu *vgpu,
bool primary);
void intel_vgpu_reset_cfg_space(struct intel_vgpu *vgpu);
int intel_vgpu_emulate_cfg_read(struct intel_vgpu *vgpu, unsigned int offset,
void *p_data, unsigned int bytes);
int intel_vgpu_emulate_cfg_write(struct intel_vgpu *vgpu, unsigned int offset,
void *p_data, unsigned int bytes);
void intel_gvt_clean_opregion(struct intel_gvt *gvt);
int intel_gvt_init_opregion(struct intel_gvt *gvt);
void intel_vgpu_clean_opregion(struct intel_vgpu *vgpu);
int intel_vgpu_init_opregion(struct intel_vgpu *vgpu, u32 gpa);
int intel_vgpu_emulate_opregion_request(struct intel_vgpu *vgpu, u32 swsci);
void populate_pvinfo_page(struct intel_vgpu *vgpu);
struct intel_gvt_ops {
int (*emulate_cfg_read)(struct intel_vgpu *, unsigned int, void *,
unsigned int);
int (*emulate_cfg_write)(struct intel_vgpu *, unsigned int, void *,
unsigned int);
int (*emulate_mmio_read)(struct intel_vgpu *, u64, void *,
unsigned int);
int (*emulate_mmio_write)(struct intel_vgpu *, u64, void *,
unsigned int);
struct intel_vgpu *(*vgpu_create)(struct intel_gvt *,
struct intel_vgpu_type *);
void (*vgpu_destroy)(struct intel_vgpu *);
void (*vgpu_reset)(struct intel_vgpu *);
};
enum {
GVT_FAILSAFE_UNSUPPORTED_GUEST,
GVT_FAILSAFE_INSUFFICIENT_RESOURCE,
};
#include "mpt.h"
#endif