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| author | Samuel Zhang <guoqing.zhang@amd.com> | 2025-05-08 14:36:35 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-06-18 12:19:15 -0400 |
| commit | 4108c2be12ebe78accb40d43f4713a7cc481b18a (patch) | |
| tree | c3c8e9f0679ee0968f0262d9cb43418b7aa2413e /rust/helpers/page.c | |
| parent | 2f405eb45c5523aadf6faea1ca465cf3e6ad7866 (diff) | |
drm/amdgpu: fix fence fallback timer expired error
IH is not working after switching a new gpu index for the first time.
During VM resume, QEMU programming of VF MSIX table (register GFXMSIX_VECT0_ADDR_LO)
may not work.The access could be blocked by nBIF protection as VF isn't in
exclusive access mode. Exclusive access is enabled now, disable/enable MSIX
so that QEMU reprograms MSIX table.
call amdgpu_restore_msix on resume to restore msix table.
Signed-off-by: Samuel Zhang <guoqing.zhang@amd.com>
Acked-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'rust/helpers/page.c')
0 files changed, 0 insertions, 0 deletions