From c9a95dbe06102cf01afee4cd83ecb29f8d587a72 Mon Sep 17 00:00:00 2001 From: Matthew Brost Date: Wed, 2 Jul 2025 14:35:11 -0700 Subject: [PATCH] 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: 3338e4f90c14 ("drm/xe: Use topology to determine page fault queue size") Fixes: 29582e0ea75c ("drm/xe: Add page queue multiplier") Signed-off-by: Matthew Brost Reviewed-by: Francois Dugast Link: https://lore.kernel.org/r/20250702213511.3226167-1-matthew.brost@intel.com (cherry picked from commit 491b9783126303755717c0cbde0b08ee59b6abab) Signed-off-by: Lucas De Marchi --- drivers/gpu/drm/xe/xe_gt_pagefault.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/xe/xe_gt_pagefault.c b/drivers/gpu/drm/xe/xe_gt_pagefault.c index 10622ca471a28..6717a636b1d9c 100644 --- a/drivers/gpu/drm/xe/xe_gt_pagefault.c +++ b/drivers/gpu/drm/xe/xe_gt_pagefault.c @@ -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; -- 2.47.2