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For now both sizes are identical. A subsequent change will reserve part of the full range for VF provisioning. Assisted-by: Claude:claude-5-sonnet Signed-off-by: Piotr Piórkowski Cc: Ville Syrjälä Cc: Maarten Lankhorst --- drivers/gpu/drm/xe/xe_ggtt.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_ggtt.c b/drivers/gpu/drm/xe/xe_ggtt.c index 773777afc68a2..abcc929c08535 100644 --- a/drivers/gpu/drm/xe/xe_ggtt.c +++ b/drivers/gpu/drm/xe/xe_ggtt.c @@ -113,9 +113,11 @@ struct xe_ggtt_pt_ops { struct xe_ggtt { /** @tile: Back pointer to tile where this GGTT belongs */ struct xe_tile *tile; - /** @start: Start offset of GGTT */ + /** @start: Start offset of the assigned GGTT range */ u64 start; - /** @size: Total usable size of this GGTT */ + /** @full_size: Full size of the assigned GGTT range */ + u64 full_size; + /** @size: Size of the GGTT range for regular use */ u64 size; /** * @flags: Flags for this GGTT. @@ -240,7 +242,7 @@ u64 xe_ggtt_size(struct xe_ggtt *ggtt) static void xe_ggtt_set_pte(struct xe_ggtt *ggtt, u64 addr, u64 pte) { xe_tile_assert(ggtt->tile, !(addr & XE_PTE_MASK)); - xe_tile_assert(ggtt->tile, addr < ggtt->start + ggtt->size); + xe_tile_assert(ggtt->tile, addr < ggtt->start + ggtt->full_size); writeq(pte, &ggtt->gsm[addr >> XE_PTE_SHIFT]); } @@ -254,7 +256,7 @@ static void xe_ggtt_set_pte_and_flush(struct xe_ggtt *ggtt, u64 addr, u64 pte) static u64 xe_ggtt_get_pte(struct xe_ggtt *ggtt, u64 addr) { xe_tile_assert(ggtt->tile, !(addr & XE_PTE_MASK)); - xe_tile_assert(ggtt->tile, addr < ggtt->start + ggtt->size); + xe_tile_assert(ggtt->tile, addr < ggtt->start + ggtt->full_size); return readq(&ggtt->gsm[addr >> XE_PTE_SHIFT]); } @@ -359,6 +361,7 @@ static const struct xe_ggtt_pt_ops xelpg_pt_wa_ops = { static void __xe_ggtt_init_early(struct xe_ggtt *ggtt, u64 start, u64 size) { ggtt->start = start; + ggtt->full_size = size; ggtt->size = size; drm_mm_init(&ggtt->mm, 0, size); } -- 2.34.1