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drm/amdgpu: Add stolen_reserved reserve-region

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Use reserve region helpers for initializing/reserving stolen_reserved region.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Lijo Lazar 2026-03-25 17:08:45 +05:30 committed by Alex Deucher
parent 941c50330e
commit 272a9c8f6f
3 changed files with 4 additions and 17 deletions
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7
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
View File

@ -1041,9 +1041,6 @@ void amdgpu_gmc_get_vbios_allocations(struct amdgpu_device *adev)
* Some ASICs need to reserve a region of video memory to avoid access
* from driver
*/
adev->mman.stolen_reserved_offset = 0;
adev->mman.stolen_reserved_size = 0;
/*
* TODO:
* Currently there is a bug where some memory client outside
@ -1060,8 +1057,8 @@ void amdgpu_gmc_get_vbios_allocations(struct amdgpu_device *adev)
*/
#ifdef CONFIG_X86
if (amdgpu_sriov_vf(adev) && hypervisor_is_type(X86_HYPER_MS_HYPERV)) {
adev->mman.stolen_reserved_offset = 0x500000;
adev->mman.stolen_reserved_size = 0x200000;
amdgpu_ttm_init_vram_resv(adev, AMDGPU_RESV_STOLEN_RESERVED,
0x500000, 0x200000, false);
}
#endif
break;

10
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
View File

@ -2214,11 +2214,7 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
if (r)
return r;
r = amdgpu_bo_create_kernel_at(adev,
adev->mman.stolen_reserved_offset,
adev->mman.stolen_reserved_size,
&adev->mman.stolen_reserved_memory,
NULL);
r = amdgpu_ttm_mark_vram_reserved(adev, AMDGPU_RESV_STOLEN_RESERVED);
if (r)
return r;
} else {
@ -2342,9 +2338,7 @@ void amdgpu_ttm_fini(struct amdgpu_device *adev)
NULL);
amdgpu_bo_free_kernel(&adev->mman.fw_reserved_memory_extend, NULL,
NULL);
if (adev->mman.stolen_reserved_size)
amdgpu_bo_free_kernel(&adev->mman.stolen_reserved_memory,
NULL, NULL);
amdgpu_ttm_unmark_vram_reserved(adev, AMDGPU_RESV_STOLEN_RESERVED);
}
amdgpu_bo_free_kernel(&adev->mman.sdma_access_bo, NULL,
&adev->mman.sdma_access_ptr);

4
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
View File

@ -105,10 +105,6 @@ struct amdgpu_mman {
bool keep_stolen_vga_memory;
struct amdgpu_bo *stolen_reserved_memory;
uint64_t stolen_reserved_offset;
uint64_t stolen_reserved_size;
/* fw reserved memory */
struct amdgpu_bo *fw_reserved_memory;
struct amdgpu_bo *fw_reserved_memory_extend;