Commit c9a95dbe authored by Matthew Brost's avatar Matthew Brost Committed by Lucas De Marchi
Browse files

drm/xe: Allocate PF queue size on pow2 boundary 



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: 3338e4f9 ("drm/xe: Use topology to determine page fault queue size")
Fixes: 29582e0e ("drm/xe: Add page queue multiplier")
Signed-off-by: default avatarMatthew Brost <matthew.brost@intel.com>
Reviewed-by: default avatarFrancois Dugast <francois.dugast@intel.com>
Link: https://lore.kernel.org/r/20250702213511.3226167-1-matthew.brost@intel.com


(cherry picked from commit 491b9783)
Signed-off-by: default avatarLucas De Marchi <lucas.demarchi@intel.com>
parent 705a412a

drivers/gpu/drm/xe/xe_gt_pagefault.c

+1 −0
Original line number Diff line number Diff line
@@ -444,6 +444,7 @@ static int xe_alloc_pf_queue(struct xe_gt *gt, struct pf_queue *pf_queue) 
#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;