Release 4.11 drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
/*
* Copyright 2016 Advanced Micro Devices, Inc.
*
* 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
*
*/
#include "amdgpu.h"
int amdgpu_allocate_static_csa(struct amdgpu_device *adev)
{
int r;
void *ptr;
r = amdgpu_bo_create_kernel(adev, AMDGPU_CSA_SIZE, PAGE_SIZE,
AMDGPU_GEM_DOMAIN_VRAM, &adev->virt.csa_obj,
&adev->virt.csa_vmid0_addr, &ptr);
if (r)
return r;
memset(ptr, 0, AMDGPU_CSA_SIZE);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Monk Liu | 66 | 100.00% | 1 | 100.00% |
| Total | 66 | 100.00% | 1 | 100.00% |
/*
* amdgpu_map_static_csa should be called during amdgpu_vm_init
* it maps virtual address "AMDGPU_VA_RESERVED_SIZE - AMDGPU_CSA_SIZE"
* to this VM, and each command submission of GFX should use this virtual
* address within META_DATA init package to support SRIOV gfx preemption.
*/
int amdgpu_map_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm)
{
int r;
struct amdgpu_bo_va *bo_va;
struct ww_acquire_ctx ticket;
struct list_head list;
struct amdgpu_bo_list_entry pd;
struct ttm_validate_buffer csa_tv;
INIT_LIST_HEAD(&list);
INIT_LIST_HEAD(&csa_tv.head);
csa_tv.bo = &adev->virt.csa_obj->tbo;
csa_tv.shared = true;
list_add(&csa_tv.head, &list);
amdgpu_vm_get_pd_bo(vm, &list, &pd);
r = ttm_eu_reserve_buffers(&ticket, &list, true, NULL);
if (r) {
DRM_ERROR("failed to reserve CSA,PD BOs: err=%d\n", r);
return r;
}
bo_va = amdgpu_vm_bo_add(adev, vm, adev->virt.csa_obj);
if (!bo_va) {
ttm_eu_backoff_reservation(&ticket, &list);
DRM_ERROR("failed to create bo_va for static CSA\n");
return -ENOMEM;
}
r = amdgpu_vm_bo_map(adev, bo_va, AMDGPU_CSA_VADDR, 0,AMDGPU_CSA_SIZE,
AMDGPU_PTE_READABLE | AMDGPU_PTE_WRITEABLE |
AMDGPU_PTE_EXECUTABLE);
if (r) {
DRM_ERROR("failed to do bo_map on static CSA, err=%d\n", r);
amdgpu_vm_bo_rmv(adev, bo_va);
ttm_eu_backoff_reservation(&ticket, &list);
return r;
}
vm->csa_bo_va = bo_va;
ttm_eu_backoff_reservation(&ticket, &list);
return 0;
}
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| Monk Liu | 236 | 100.00% | 1 | 100.00% |
| Total | 236 | 100.00% | 1 | 100.00% |
void amdgpu_virt_init_setting(struct amdgpu_device *adev)
{
/* enable virtual display */
adev->mode_info.num_crtc = 1;
adev->enable_virtual_display = true;
mutex_init(&adev->virt.lock);
}
Contributors
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| Xiangliang Yu | 35 | 100.00% | 2 | 100.00% |
| Total | 35 | 100.00% | 2 | 100.00% |
uint32_t amdgpu_virt_kiq_rreg(struct amdgpu_device *adev, uint32_t reg)
{
signed long r;
uint32_t val;
struct dma_fence *f;
struct amdgpu_kiq *kiq = &adev->gfx.kiq;
struct amdgpu_ring *ring = &kiq->ring;
BUG_ON(!ring->funcs->emit_rreg);
mutex_lock(&adev->virt.lock);
amdgpu_ring_alloc(ring, 32);
amdgpu_ring_emit_hdp_flush(ring);
amdgpu_ring_emit_rreg(ring, reg);
amdgpu_ring_emit_hdp_invalidate(ring);
amdgpu_fence_emit(ring, &f);
amdgpu_ring_commit(ring);
mutex_unlock(&adev->virt.lock);
r = dma_fence_wait(f, false);
if (r)
DRM_ERROR("wait for kiq fence error: %ld.\n", r);
dma_fence_put(f);
val = adev->wb.wb[adev->virt.reg_val_offs];
return val;
}
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| Xiangliang Yu | 157 | 100.00% | 1 | 100.00% |
| Total | 157 | 100.00% | 1 | 100.00% |
void amdgpu_virt_kiq_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v)
{
signed long r;
struct dma_fence *f;
struct amdgpu_kiq *kiq = &adev->gfx.kiq;
struct amdgpu_ring *ring = &kiq->ring;
BUG_ON(!ring->funcs->emit_wreg);
mutex_lock(&adev->virt.lock);
amdgpu_ring_alloc(ring, 32);
amdgpu_ring_emit_hdp_flush(ring);
amdgpu_ring_emit_wreg(ring, reg, v);
amdgpu_ring_emit_hdp_invalidate(ring);
amdgpu_fence_emit(ring, &f);
amdgpu_ring_commit(ring);
mutex_unlock(&adev->virt.lock);
r = dma_fence_wait(f, false);
if (r)
DRM_ERROR("wait for kiq fence error: %ld.\n", r);
dma_fence_put(f);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Xiangliang Yu | 141 | 100.00% | 1 | 100.00% |
| Total | 141 | 100.00% | 1 | 100.00% |
/**
* amdgpu_virt_request_full_gpu() - request full gpu access
* @amdgpu: amdgpu device.
* @init: is driver init time.
* When start to init/fini driver, first need to request full gpu access.
* Return: Zero if request success, otherwise will return error.
*/
int amdgpu_virt_request_full_gpu(struct amdgpu_device *adev, bool init)
{
struct amdgpu_virt *virt = &adev->virt;
int r;
if (virt->ops && virt->ops->req_full_gpu) {
r = virt->ops->req_full_gpu(adev, init);
if (r)
return r;
adev->virt.caps &= ~AMDGPU_SRIOV_CAPS_RUNTIME;
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Xiangliang Yu | 72 | 100.00% | 1 | 100.00% |
| Total | 72 | 100.00% | 1 | 100.00% |
/**
* amdgpu_virt_release_full_gpu() - release full gpu access
* @amdgpu: amdgpu device.
* @init: is driver init time.
* When finishing driver init/fini, need to release full gpu access.
* Return: Zero if release success, otherwise will returen error.
*/
int amdgpu_virt_release_full_gpu(struct amdgpu_device *adev, bool init)
{
struct amdgpu_virt *virt = &adev->virt;
int r;
if (virt->ops && virt->ops->rel_full_gpu) {
r = virt->ops->rel_full_gpu(adev, init);
if (r)
return r;
adev->virt.caps |= AMDGPU_SRIOV_CAPS_RUNTIME;
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Xiangliang Yu | 71 | 100.00% | 1 | 100.00% |
| Total | 71 | 100.00% | 1 | 100.00% |
/**
* amdgpu_virt_reset_gpu() - reset gpu
* @amdgpu: amdgpu device.
* Send reset command to GPU hypervisor to reset GPU that VM is using
* Return: Zero if reset success, otherwise will return error.
*/
int amdgpu_virt_reset_gpu(struct amdgpu_device *adev)
{
struct amdgpu_virt *virt = &adev->virt;
int r;
if (virt->ops && virt->ops->reset_gpu) {
r = virt->ops->reset_gpu(adev);
if (r)
return r;
adev->virt.caps &= ~AMDGPU_SRIOV_CAPS_RUNTIME;
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Xiangliang Yu | 67 | 100.00% | 1 | 100.00% |
| Total | 67 | 100.00% | 1 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Xiangliang Yu | 546 | 64.01% | 3 | 75.00% |
| Monk Liu | 307 | 35.99% | 1 | 25.00% |
| Total | 853 | 100.00% | 4 | 100.00% |
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