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drm/amdgpu: Add helper to set gart size

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Add a helper to make any adjustments to gart size based on other
parameters or conditions.

Suggested-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Christian König <christian.koenig@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 2026-04-30 11:01:47 +05:30 committed by Alex Deucher
parent d12d05c4bc
commit 035542d9fe
2 changed files with 11 additions and 0 deletions
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9
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
View File

@ -280,6 +280,15 @@ void amdgpu_gmc_sysvm_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc
mc->gart_size >> 20, mc->gart_start, mc->gart_end);
}
void amdgpu_gmc_set_gart_size(struct amdgpu_device *adev, u64 default_size)
{
if (amdgpu_gart_size == -1)
adev->gmc.gart_size =
default_size + adev->pm.smu_prv_buffer_size;
else
adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
}
/**
* amdgpu_gmc_gart_location - try to find GART location
*

2
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
View File

@ -486,4 +486,6 @@ void amdgpu_gmc_init_sw_mem_ranges(struct amdgpu_device *adev,
struct amdgpu_mem_partition_info *mem_ranges);
int amdgpu_gmc_get_vram_info(struct amdgpu_device *adev,
int *vram_width, int *vram_type, int *vram_vendor);
void amdgpu_gmc_set_gart_size(struct amdgpu_device *adev, u64 default_size);
#endif