diff options
| author | Ellen Pan <yunru.pan@amd.com> | 2025-10-08 15:01:10 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-10-20 18:28:08 -0400 |
| commit | 13ccaa84430efa78f9eedb3a04cac2f9af254d77 (patch) | |
| tree | ac22df4d163ddaf85085102d9046caf8c6e3c863 /drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | |
| parent | 07009df6494dc9272b233eeddc10d26f545ff09a (diff) | |
drm/amdgpu: Reuse fw_vram_usage_* for dynamic critical region in SRIOV
- During guest driver init, asa VFs receive PF msg to
init dynamic critical region(v2), VFs reuse fw_vram_usage_*
from ttm to store critical region tables in a 5MB chunk.
Signed-off-by: Ellen Pan <yunru.pan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c index 1779b1ac30d2..7cabcbdb50e1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c @@ -1008,6 +1008,15 @@ int amdgpu_virt_init_critical_region(struct amdgpu_device *adev) init_data_hdr->bad_page_size_in_kb; } + /* reserved memory starts from crit region base offset with the size of 5MB */ + adev->mman.fw_vram_usage_start_offset = adev->virt.crit_regn.offset; + adev->mman.fw_vram_usage_size = adev->virt.crit_regn.size_kb << 10; + dev_info(adev->dev, + "critical region v%d requested to reserve memory start at %08llx with %llu KB.\n", + init_data_hdr->version, + adev->mman.fw_vram_usage_start_offset, + adev->mman.fw_vram_usage_size >> 10); + adev->virt.is_dynamic_crit_regn_enabled = true; out: |