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drm/amdgpu: Reuse fw_vram_usage_* for dynamic critical region in SRIOV

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- 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>
This commit is contained in:
Ellen Pan
2025-10-08 15:01:10 -05:00
committed by Alex Deucher
parent 07009df649
commit 13ccaa8443
3 changed files with 30 additions and 18 deletions
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10
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
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@@ -1941,17 +1941,17 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
return r;
/*
*The reserved vram for driver must be pinned to the specified
*place on the VRAM, so reserve it early.
* The reserved VRAM for the driver must be pinned to a specific
* location in VRAM, so reserve it early.
*/
r = amdgpu_ttm_drv_reserve_vram_init(adev);
if (r)
return r;
/*
* only NAVI10 and onwards ASIC support for IP discovery.
* If IP discovery enabled, a block of memory should be
* reserved for IP discovey.
* only NAVI10 and later ASICs support IP discovery.
* If IP discovery is enabled, a block of memory should be
* reserved for it.
*/
if (adev->discovery.reserve_tmr) {
r = amdgpu_ttm_reserve_tmr(adev);