6.12-stable review patch. If anyone has any objections, please let me know.
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From: Matthew Brost matthew.brost@intel.com
commit c9a95dbe06102cf01afee4cd83ecb29f8d587a72 upstream.
CIRC_SPACE does not work unless the size argument is a power of 2, allocate PF queue size on power of 2 boundary.
Cc: stable@vger.kernel.org Fixes: 3338e4f90c14 ("drm/xe: Use topology to determine page fault queue size") Fixes: 29582e0ea75c ("drm/xe: Add page queue multiplier") Signed-off-by: Matthew Brost matthew.brost@intel.com Reviewed-by: Francois Dugast francois.dugast@intel.com Link: https://lore.kernel.org/r/20250702213511.3226167-1-matthew.brost@intel.com (cherry picked from commit 491b9783126303755717c0cbde0b08ee59b6abab) Signed-off-by: Lucas De Marchi lucas.demarchi@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/xe/xe_gt_pagefault.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/gpu/drm/xe/xe_gt_pagefault.c +++ b/drivers/gpu/drm/xe/xe_gt_pagefault.c @@ -432,6 +432,7 @@ static int xe_alloc_pf_queue(struct xe_g #define PF_MULTIPLIER 8 pf_queue->num_dw = (num_eus + XE_NUM_HW_ENGINES) * PF_MSG_LEN_DW * PF_MULTIPLIER; + pf_queue->num_dw = roundup_pow_of_two(pf_queue->num_dw); #undef PF_MULTIPLIER
pf_queue->gt = gt;