diff options
| author | Christian König <christian.koenig@amd.com> | 2017-11-27 16:22:05 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-12-06 12:48:31 -0500 |
| commit | 97489129c220ef67195c886f9f2bad9651edd601 (patch) | |
| tree | 656cfcc8985ca50d147917e57c09fec819649e5f /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | |
| parent | f3368128bacece315aa0384b54b7da9e6f0909cd (diff) | |
drm/amdgpu: allow specifying vm_block_size for multi level PDs v2
This patch allows specifying the vm_block_size even when multi level
page directories are active.
v2: fix signed/unsigned compare warning
Signed-off-by: Christian König <christian.koenig@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_vm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 44430c4820cc..7de519b86b78 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -2600,18 +2600,21 @@ void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint32_t vm_size, adev->vm_manager.max_pfn = (uint64_t)vm_size << 18; tmp = roundup_pow_of_two(adev->vm_manager.max_pfn); + if (amdgpu_vm_block_size != -1) + tmp >>= amdgpu_vm_block_size - 9; tmp = DIV_ROUND_UP(fls64(tmp) - 1, 9) - 1; adev->vm_manager.num_level = min(max_level, (unsigned)tmp); /* block size depends on vm size and hw setup*/ - if (adev->vm_manager.num_level > 1) - /* Use fixed block_size for multi level page tables */ - adev->vm_manager.block_size = 9; - else if (amdgpu_vm_block_size == -1) + if (amdgpu_vm_block_size != -1) adev->vm_manager.block_size = - amdgpu_vm_get_block_size(vm_size); + min((unsigned)amdgpu_vm_block_size, max_bits + - AMDGPU_GPU_PAGE_SHIFT + - 9 * adev->vm_manager.num_level); + else if (adev->vm_manager.num_level > 1) + adev->vm_manager.block_size = 9; else - adev->vm_manager.block_size = amdgpu_vm_block_size; + adev->vm_manager.block_size = amdgpu_vm_get_block_size(tmp); if (amdgpu_vm_fragment_size == -1) adev->vm_manager.fragment_size = fragment_size_default; |