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drm/xe: Allocate PF queue size on pow2 boundary

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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: 3338e4f90c ("drm/xe: Use topology to determine page fault queue size")
Fixes: 29582e0ea7 ("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 491b978312)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
This commit is contained in:
Matthew Brost 2025-07-02 14:35:11 -07:00 committed by Lucas De Marchi
parent 705a412a36
commit c9a95dbe06
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/xe/xe_gt_pagefault.c
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@ -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;