diff options
| author | Philip Yang <Philip.Yang@amd.com> | 2023-03-23 15:45:56 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 17:36:51 +0300 |
| commit | 25f50704343de1bea70100ad41621b5737a6a96b (patch) | |
| tree | 028c4ab23f52b6dd44909b12c8f2be1d353914d7 /drivers/gpu/drm/amd/amdkfd/kfd_svm.c | |
| parent | 1c77527a69d5ca19cb276e2728992d922b687f35 (diff) | |
| download | linux-25f50704343de1bea70100ad41621b5737a6a96b.tar.xz | |
drm/amdkfd: APU mode set max svm range pages
svm_migrate_init set the max svm range pages based on the KFD nodes
partition size. APU mode don't init pgmap because there is no migration.
kgd2kfd_device_init calls svm_migrate_init after KFD nodes allocation
and initialization.
Signed-off-by: Philip Yang <Philip.Yang@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/amdkfd/kfd_svm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c index c1ab70faf36e..206851c9e642 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c @@ -1938,14 +1938,19 @@ void svm_range_set_max_pages(struct amdgpu_device *adev) { uint64_t max_pages; uint64_t pages, _pages; + uint64_t min_pages = 0; + int i; + + for (i = 0; i < adev->kfd.dev->num_nodes; i++) { + pages = KFD_XCP_MEMORY_SIZE(adev, adev->kfd.dev->nodes[i]->xcp->id) >> 17; + pages = clamp(pages, 1ULL << 9, 1ULL << 18); + pages = rounddown_pow_of_two(pages); + min_pages = min_not_zero(min_pages, pages); + } - /* 1/32 VRAM size in pages */ - pages = adev->gmc.real_vram_size >> 17; - pages = clamp(pages, 1ULL << 9, 1ULL << 18); - pages = rounddown_pow_of_two(pages); do { max_pages = READ_ONCE(max_svm_range_pages); - _pages = min_not_zero(max_pages, pages); + _pages = min_not_zero(max_pages, min_pages); } while (cmpxchg(&max_svm_range_pages, max_pages, _pages) != max_pages); } |