diff options
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 46 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 11 |
7 files changed, 74 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c index a0a9abd23a7b..cbe30ccf6162 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c @@ -822,3 +822,49 @@ void amdgpu_gmc_get_reserved_allocation(struct amdgpu_device *adev) break; } } + +int amdgpu_gmc_vram_checking(struct amdgpu_device *adev) +{ + struct amdgpu_bo *vram_bo; + uint64_t vram_gpu; + void *vram_ptr; + + int ret, size = 0x100000; + uint8_t cptr[10]; + + ret = amdgpu_bo_create_kernel(adev, size, PAGE_SIZE, + AMDGPU_GEM_DOMAIN_VRAM, + &vram_bo, + &vram_gpu, + &vram_ptr); + if (ret) + return ret; + + memset(vram_ptr, 0x86, size); + memset(cptr, 0x86, 10); + + /** + * Check the start, the mid, and the end of the memory if the content of + * each byte is the pattern "0x86". If yes, we suppose the vram bo is + * workable. + * + * Note: If check the each byte of whole 1M bo, it will cost too many + * seconds, so here, we just pick up three parts for emulation. + */ + ret = memcmp(vram_ptr, cptr, 10); + if (ret) + return ret; + + ret = memcmp(vram_ptr + (size / 2), cptr, 10); + if (ret) + return ret; + + ret = memcmp(vram_ptr + size - 10, cptr, 10); + if (ret) + return ret; + + amdgpu_bo_free_kernel(&vram_bo, &vram_gpu, + &vram_ptr); + + return 0; +} diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h index 0001631cfedb..a5e8e0e08970 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h @@ -336,4 +336,5 @@ void amdgpu_gmc_init_pdb0(struct amdgpu_device *adev); uint64_t amdgpu_gmc_vram_mc2pa(struct amdgpu_device *adev, uint64_t mc_addr); uint64_t amdgpu_gmc_vram_pa(struct amdgpu_device *adev, struct amdgpu_bo *bo); uint64_t amdgpu_gmc_vram_cpu_pa(struct amdgpu_device *adev, struct amdgpu_bo *bo); +int amdgpu_gmc_vram_checking(struct amdgpu_device *adev); #endif diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c index 4f8d356f8432..bb9a11bc644b 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c @@ -1057,6 +1057,12 @@ static int gmc_v10_0_hw_init(void *handle) if (r) return r; + if (amdgpu_emu_mode == 1) { + r = amdgpu_gmc_vram_checking(adev); + if (r) + return r; + } + if (adev->umc.funcs && adev->umc.funcs->init_registers) adev->umc.funcs->init_registers(adev); diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c index cd6c38e083d0..84f0debe8264 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c @@ -922,7 +922,10 @@ static int gmc_v6_0_hw_init(void *handle) if (r) return r; - return r; + if (amdgpu_emu_mode == 1) + return amdgpu_gmc_vram_checking(adev); + else + return r; } static int gmc_v6_0_hw_fini(void *handle) diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c index ab8adbff9e2d..8800a18b0cf6 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c @@ -1111,7 +1111,10 @@ static int gmc_v7_0_hw_init(void *handle) if (r) return r; - return r; + if (amdgpu_emu_mode == 1) + return amdgpu_gmc_vram_checking(adev); + else + return r; } static int gmc_v7_0_hw_fini(void *handle) diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c index 054733838292..1c10fa5d0db7 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c @@ -1242,7 +1242,10 @@ static int gmc_v8_0_hw_init(void *handle) if (r) return r; - return r; + if (amdgpu_emu_mode == 1) + return amdgpu_gmc_vram_checking(adev); + else + return r; } static int gmc_v8_0_hw_fini(void *handle) diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c index c76ffd1a70cd..6866e0311b49 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -1815,7 +1815,7 @@ static int gmc_v9_0_hw_init(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; bool value; - int i; + int i, r; /* The sequence of these two function calls matters.*/ gmc_v9_0_init_golden_registers(adev); @@ -1850,7 +1850,14 @@ static int gmc_v9_0_hw_init(void *handle) if (adev->umc.funcs && adev->umc.funcs->init_registers) adev->umc.funcs->init_registers(adev); - return gmc_v9_0_gart_enable(adev); + r = gmc_v9_0_gart_enable(adev); + if (r) + return r; + + if (amdgpu_emu_mode == 1) + return amdgpu_gmc_vram_checking(adev); + else + return r; } /** |