Commit 5c82adf9 authored by Jesse.Zhang's avatar Jesse.Zhang Committed by Alex Deucher
Browse files

drm/amdgpu: use DISCOVERY_TMR_SIZE in ACPI TMR fallback 



amdgpu_acpi_get_tmr_info() returns the full TMR region size, not the IP
discovery table size. Using tmr_size as discovery.size can lead to oversized
allocations and probe failure.

In the ACPI fallback path, keep discovery.size as DISCOVERY_TMR_SIZE and only
use ACPI data for offset calculation.

Fixes: 01bdc7e2 ("drm/amdgpu: New interface to get IP discovery binary v3")
Reviewed-by: default avatarLijo Lazar <lijo.lazar@amd.com>
Suggested-by: default avatarLijo Lazar <lijo.lazar@amd.com>
Signed-off-by: default avatarJesse Zhang <jesse.zhang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent bdb2b9e1

drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c

+1 −1
Original line number Diff line number Diff line
@@ -324,7 +324,7 @@ static int amdgpu_discovery_get_tmr_info(struct amdgpu_device *adev, 
			ret = amdgpu_acpi_get_tmr_info(adev, &tmr_offset, &tmr_size);

			if (ret)

				return ret;

			adev->discovery.size = (u32)tmr_size;

			adev->discovery.size = DISCOVERY_TMR_SIZE;

			adev->discovery.offset = tmr_offset + tmr_size - DISCOVERY_TMR_OFFSET;

		}

	}