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drm/xe/migrate: trim batch buffer sizing

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We have an extra two dwords, but it looks like we should only need one
for the extra bb_end. Likely this is just leftover from back when the
arb handling was moved into the ring programming.

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20251022163836.191405-6-matthew.auld@intel.com
This commit is contained in:
Matthew Auld
2025-10-22 17:38:34 +01:00
parent 1413329456
commit 0171dcce33
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/xe/xe_migrate.c
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@@ -847,7 +847,7 @@ struct dma_fence *xe_migrate_copy(struct xe_migrate *m,
&ccs_it);
while (size) {
u32 batch_size = 2; /* arb_clear() + MI_BATCH_BUFFER_END */
u32 batch_size = 1; /* MI_BATCH_BUFFER_END */
struct xe_sched_job *job;
struct xe_bb *bb;
u32 flush_flags = 0;
@@ -1312,7 +1312,7 @@ struct dma_fence *xe_migrate_clear(struct xe_migrate *m,
/* Calculate final sizes and batch size.. */
pte_flags = clear_vram ? PTE_UPDATE_FLAG_IS_VRAM : 0;
batch_size = 2 +
batch_size = 1 +
pte_update_size(m, pte_flags, src, &src_it,
&clear_L0, &clear_L0_ofs, &clear_L0_pt,
clear_bo_data ? emit_clear_cmd_len(gt) : 0, 0,
@@ -1876,7 +1876,7 @@ static struct dma_fence *xe_migrate_vram(struct xe_migrate *m,
struct xe_device *xe = gt_to_xe(gt);
bool use_usm_batch = xe->info.has_usm;
struct dma_fence *fence = NULL;
u32 batch_size = 2;
u32 batch_size = 1;
u64 src_L0_ofs, dst_L0_ofs;
struct xe_sched_job *job;
struct xe_bb *bb;