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authorMatthew Auld <matthew.auld@intel.com>2025-10-22 17:38:34 +0100
committerMatthew Auld <matthew.auld@intel.com>2025-10-23 10:48:38 +0100
commit0171dcce33fb0c5c26129d8334cd13e511b5522a (patch)
treebea7262cdbe7f800a55cc3bd25e65f50f617dbb3
parent1413329456aaf5d209ab9c73ae710fb88785ef78 (diff)
drm/xe/migrate: trim batch buffer sizing
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
-rw-r--r--drivers/gpu/drm/xe/xe_migrate.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/xe/xe_migrate.c b/drivers/gpu/drm/xe/xe_migrate.c
index fa87e0eddd09..95aefe2e71f5 100644
--- a/drivers/gpu/drm/xe/xe_migrate.c
+++ b/drivers/gpu/drm/xe/xe_migrate.c
@@ -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;