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drm/amdgpu/mes: Fix hung_queue_db_array loop limit for multi-XCC

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The loop iterated only AMDGPU_MAX_MES_PIPES times, leaving entries
uninitialized for multi-XCC GPUs. This causes null pointer dereferences
when accessing arrays indexed by XCC ID >= 2. Extend the loop to cover
all XCCs (AMDGPU_MAX_MES_PIPES * num_xcc), matching other per-XCC
arrays.

Fixes: a132fc9bc2 ("drm/amdgpu: Fixup boost mes detect hang array size")
Signed-off-by: Geoffrey McRae <geoffrey.mcrae@amd.com>
Reviewed-by: Amber Lin <amber.lin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Geoffrey McRae 2026-06-28 15:37:02 +10:00 committed by Alex Deucher
parent 3d4e5f211e
commit 2c256086a3
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
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@ -237,7 +237,7 @@ int amdgpu_mes_init(struct amdgpu_device *adev)
}
if (adev->mes.hung_queue_db_array_size) {
for (i = 0; i < AMDGPU_MAX_MES_PIPES; i++) {
for (i = 0; i < AMDGPU_MAX_MES_PIPES * num_xcc; i++) {
r = amdgpu_bo_create_kernel(adev,
adev->mes.hung_queue_db_array_size * sizeof(u32),
PAGE_SIZE,