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| author | Daniel Phillips <daniel.phillips@amd.com> | 2022-07-25 08:48:00 -0700 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-08-10 14:58:44 -0400 |
| commit | aec208eecfb833b05597bbc28696fb1ab62f732c (patch) | |
| tree | 201a9e1a0d12e297c48928ace1d0570ec9121c71 /drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | |
| parent | f59966779deac642541c3f7d772a3bf5972727ed (diff) | |
| download | linux-aec208eecfb833b05597bbc28696fb1ab62f732c.tar.bz2 | |
drm/amdgpu: Remove rounding from vram allocation path
Rounding up allocations in the allocation path caused test regressions,
so now just round in the availability path.
Signed-off-by: Daniel Phillips <daniel.phillips@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c index a699134a1e8c..2d2ef633c561 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c @@ -40,10 +40,10 @@ #define AMDGPU_USERPTR_RESTORE_DELAY_MS 1 /* - * Align VRAM allocations to 2MB to avoid fragmentation caused by 4K allocations in the tail 2MB + * Align VRAM availability to 2MB to avoid fragmentation caused by 4K allocations in the tail 2MB * BO chunk */ -#define VRAM_ALLOCATION_ALIGN (1 << 21) +#define VRAM_AVAILABLITY_ALIGN (1 << 21) /* Impose limit on how much memory KFD can use */ static struct { @@ -149,7 +149,7 @@ int amdgpu_amdkfd_reserve_mem_limit(struct amdgpu_device *adev, * to avoid fragmentation caused by 4K allocations in the tail * 2M BO chunk. */ - vram_needed = ALIGN(size, VRAM_ALLOCATION_ALIGN); + vram_needed = size; } else if (alloc_flag & KFD_IOC_ALLOC_MEM_FLAGS_USERPTR) { system_mem_needed = size; } else if (!(alloc_flag & @@ -204,7 +204,7 @@ void amdgpu_amdkfd_unreserve_mem_limit(struct amdgpu_device *adev, WARN_ONCE(!adev, "adev reference can't be null when alloc mem flags vram is set"); if (adev) - adev->kfd.vram_used -= ALIGN(size, VRAM_ALLOCATION_ALIGN); + adev->kfd.vram_used -= size; } else if (alloc_flag & KFD_IOC_ALLOC_MEM_FLAGS_USERPTR) { kfd_mem_limit.system_mem_used -= size; } else if (!(alloc_flag & @@ -1608,7 +1608,6 @@ size_t amdgpu_amdkfd_get_available_memory(struct amdgpu_device *adev) uint64_t reserved_for_pt = ESTIMATE_PT_SIZE(amdgpu_amdkfd_total_mem_size); size_t available; - spin_lock(&kfd_mem_limit.mem_limit_lock); available = adev->gmc.real_vram_size - adev->kfd.vram_used @@ -1616,7 +1615,7 @@ size_t amdgpu_amdkfd_get_available_memory(struct amdgpu_device *adev) - reserved_for_pt; spin_unlock(&kfd_mem_limit.mem_limit_lock); - return ALIGN_DOWN(available, VRAM_ALLOCATION_ALIGN); + return ALIGN_DOWN(available, VRAM_AVAILABLITY_ALIGN); } int amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu( |