drm/amdgpu: use DISCOVERY_TMR_SIZE in ACPI TMR fallback

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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: 01bdc7e219 ("drm/amdgpu: New interface to get IP discovery binary v3")
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Suggested-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Jesse Zhang <jesse.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Jesse.Zhang 2026-03-23 13:31:54 +08:00 • committed by Alex Deucher

parent bdb2b9e1e0

commit 5c82adf957

1 changed files with 1 additions and 1 deletions

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

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