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drm/xe/migrate: Handle clear ccs logic for xe2 dgfx

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For Xe2 dGPU, we clear the bo by modifying the VRAM using an
uncompressed pat index which then indirectly updates the
compression status as uncompressed i.e zeroed CCS.
So xe_migrate_clear() should be updated for BMG to not
emit CCS surf copy commands.

v2: Moved xe_device_needs_ccs_emit() to xe_migrate.c and changed
name to xe_migrate_needs_ccs_emit() since its very specific to
migration.(Matt)

Signed-off-by: Akshata Jahagirdar <akshata.jahagirdar@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/8dd869dd8dda5e17ace28c04f1a48675f5540874.1721250309.git.akshata.jahagirdar@intel.com
This commit is contained in:
Akshata Jahagirdar 2024-07-17 21:10:02 +00:00 committed by Matt Roper
parent 452bca0edb
commit 108c972a11
1 changed files with 8 additions and 3 deletions
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11
drivers/gpu/drm/xe/xe_migrate.c
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@ -347,6 +347,11 @@ static u32 xe_migrate_usm_logical_mask(struct xe_gt *gt)
return logical_mask;
}
static bool xe_migrate_needs_ccs_emit(struct xe_device *xe)
{
return xe_device_has_flat_ccs(xe) && !(GRAPHICS_VER(xe) >= 20 && IS_DGFX(xe));
}
/**
* xe_migrate_init() - Initialize a migrate context
* @tile: Back-pointer to the tile we're initializing for.
@ -420,7 +425,7 @@ struct xe_migrate *xe_migrate_init(struct xe_tile *tile)
return ERR_PTR(err);
if (IS_DGFX(xe)) {
if (xe_device_has_flat_ccs(xe))
if (xe_migrate_needs_ccs_emit(xe))
/* min chunk size corresponds to 4K of CCS Metadata */
m->min_chunk_size = SZ_4K * SZ_64K /
xe_device_ccs_bytes(xe, SZ_64K);
@ -1034,7 +1039,7 @@ struct dma_fence *xe_migrate_clear(struct xe_migrate *m,
clear_system_ccs ? 0 : emit_clear_cmd_len(gt), 0,
avail_pts);
if (xe_device_has_flat_ccs(xe))
if (xe_migrate_needs_ccs_emit(xe))
batch_size += EMIT_COPY_CCS_DW;
/* Clear commands */
@ -1062,7 +1067,7 @@ struct dma_fence *xe_migrate_clear(struct xe_migrate *m,
if (!clear_system_ccs)
emit_clear(gt, bb, clear_L0_ofs, clear_L0, XE_PAGE_SIZE, clear_vram);
if (xe_device_has_flat_ccs(xe)) {
if (xe_migrate_needs_ccs_emit(xe)) {
emit_copy_ccs(gt, bb, clear_L0_ofs, true,
m->cleared_mem_ofs, false, clear_L0);
flush_flags = MI_FLUSH_DW_CCS;