drm/amdgpu: Drop BUG_ON in PDE address verification for GFX 12.1

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Update the address mask to support 52-bits addresses when validating the
PDE addresses for GFX 12.1. Currently the address mask was incorrect and
only permitted 48-bits addresses. Additionally, drop the BUG_ON() and
replace it with code to reset the invalid address and valid bit if the
address verification fails. This should help generate a page fault instead
of crashing the kernel.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Philip Yang <philip.yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Mukul Joshi 2026-07-27 16:41:28 -04:00 • committed by Alex Deucher

parent 7ceff36ab1

commit 2760bfb1fd

1 changed files with 6 additions and 1 deletions

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drivers/gpu/drm/amd/amdgpu/gmc_v12_1.c

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