6.15-stable review patch. If anyone has any objections, please let me know.
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From: Matthew Brost matthew.brost@intel.com
commit daa099fed50a39256feb37d3fac146bf0d74152f upstream.
This reverts commit fe0154cf8222d9e38c60ccc124adb2f9b5272371.
Seeing some unexplained random failures during LRC context switches with indirect ring state enabled. The failures were always there, but the repro rate increased with the addition of WA BB as a separate BO. Commit 3a1edef8f4b5 ("drm/xe: Make WA BB part of LRC BO") helped to reduce the issues in the context switches, but didn't eliminate them completely.
Indirect ring state is not required for any current features, so disable for now until failures can be root caused.
Cc: stable@vger.kernel.org Fixes: fe0154cf8222 ("drm/xe/xe2: Enable Indirect Ring State support for Xe2") Signed-off-by: Matthew Brost matthew.brost@intel.com Reviewed-by: Lucas De Marchi lucas.demarchi@intel.com Link: https://lore.kernel.org/r/20250702035846.3178344-1-matthew.brost@intel.com Signed-off-by: Lucas De Marchi lucas.demarchi@intel.com (cherry picked from commit 03d85ab36bcbcbe9dc962fccd3f8e54d7bb93b35) Signed-off-by: Lucas De Marchi lucas.demarchi@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/xe/xe_pci.c | 1 - 1 file changed, 1 deletion(-)
--- a/drivers/gpu/drm/xe/xe_pci.c +++ b/drivers/gpu/drm/xe/xe_pci.c @@ -137,7 +137,6 @@ static const struct xe_graphics_desc gra .has_asid = 1, \ .has_atomic_enable_pte_bit = 1, \ .has_flat_ccs = 1, \ - .has_indirect_ring_state = 1, \ .has_range_tlb_invalidation = 1, \ .has_usm = 1, \ .has_64bit_timestamp = 1, \