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drm/amdgpu: add vram reservation based on vram_usagebyfirmware_v2_2

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Move TMR region from top of FB to 2MB for FFBM, so we need to
reserve TMR region firstly to make sure TMR can be allocated at 2MB

Signed-off-by: Tong Liu01 <Tong.Liu01@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tong Liu01
2022-11-10 17:31:36 +08:00
committed by Alex Deucher
parent 3e93136809
commit 4864f2ee9e
4 changed files with 191 additions and 32 deletions
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51
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
View File

@@ -1561,6 +1561,23 @@ static void amdgpu_ttm_fw_reserve_vram_fini(struct amdgpu_device *adev)
NULL, &adev->mman.fw_vram_usage_va);
}
/*
* Driver Reservation functions
*/
/**
* amdgpu_ttm_drv_reserve_vram_fini - free drv reserved vram
*
* @adev: amdgpu_device pointer
*
* free drv reserved vram if it has been reserved.
*/
static void amdgpu_ttm_drv_reserve_vram_fini(struct amdgpu_device *adev)
{
amdgpu_bo_free_kernel(&adev->mman.drv_vram_usage_reserved_bo,
NULL,
NULL);
}
/**
* amdgpu_ttm_fw_reserve_vram_init - create bo vram reservation from fw
*
@@ -1587,6 +1604,31 @@ static int amdgpu_ttm_fw_reserve_vram_init(struct amdgpu_device *adev)
&adev->mman.fw_vram_usage_va);
}
/**
* amdgpu_ttm_drv_reserve_vram_init - create bo vram reservation from driver
*
* @adev: amdgpu_device pointer
*
* create bo vram reservation from drv.
*/
static int amdgpu_ttm_drv_reserve_vram_init(struct amdgpu_device *adev)
{
uint64_t vram_size = adev->gmc.visible_vram_size;
adev->mman.drv_vram_usage_reserved_bo = NULL;
if (adev->mman.drv_vram_usage_size == 0 ||
adev->mman.drv_vram_usage_size > vram_size)
return 0;
return amdgpu_bo_create_kernel_at(adev,
adev->mman.drv_vram_usage_start_offset,
adev->mman.drv_vram_usage_size,
AMDGPU_GEM_DOMAIN_VRAM,
&adev->mman.drv_vram_usage_reserved_bo,
NULL);
}
/*
* Memoy training reservation functions
*/
@@ -1754,6 +1796,14 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
return r;
}
/*
*The reserved vram for driver must be pinned to the specified
*place on the VRAM, so reserve it early.
*/
r = amdgpu_ttm_drv_reserve_vram_init(adev);
if (r)
return r;
/*
* only NAVI10 and onwards ASIC support for IP discovery.
* If IP discovery enabled, a block of memory should be
@@ -1879,6 +1929,7 @@ void amdgpu_ttm_fini(struct amdgpu_device *adev)
amdgpu_bo_free_kernel(&adev->mman.sdma_access_bo, NULL,
&adev->mman.sdma_access_ptr);
amdgpu_ttm_fw_reserve_vram_fini(adev);
amdgpu_ttm_drv_reserve_vram_fini(adev);
if (drm_dev_enter(adev_to_drm(adev), &idx)) {