From 52a36e7ed6f401605cefd79cf8acd6a28cd3d5d2 Mon Sep 17 00:00:00 2001 From: Matthew Auld Date: Thu, 3 Apr 2025 11:24:47 +0100 Subject: [PATCH] drm/xe: allow non-contig VRAM kernel BO MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit If the kernel bo doesn't care about vmap(), either directly or indirectly with save/restore then we don't need to force contig for such buffers. Signed-off-by: Matthew Auld Cc: Satyanarayana K V P Cc: Thomas Hellström Cc: Matthew Brost Reviewed-by: Satyanarayana K V P Link: https://lore.kernel.org/r/20250403102440.266113-15-matthew.auld@intel.com --- drivers/gpu/drm/xe/xe_bo.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/xe/xe_bo.c b/drivers/gpu/drm/xe/xe_bo.c index 29e5849a9ae3..c337790c81ae 100644 --- a/drivers/gpu/drm/xe/xe_bo.c +++ b/drivers/gpu/drm/xe/xe_bo.c @@ -191,11 +191,18 @@ static void try_add_system(struct xe_device *xe, struct xe_bo *bo, static bool force_contiguous(u32 bo_flags) { + if (bo_flags & XE_BO_FLAG_STOLEN) + return true; /* users expect this */ + else if (bo_flags & XE_BO_FLAG_PINNED && + !(bo_flags & XE_BO_FLAG_PINNED_LATE_RESTORE)) + return true; /* needs vmap */ + /* * For eviction / restore on suspend / resume objects pinned in VRAM * must be contiguous, also only contiguous BOs support xe_bo_vmap. */ - return bo_flags & (XE_BO_FLAG_PINNED | XE_BO_FLAG_GGTT); + return bo_flags & XE_BO_FLAG_NEEDS_CPU_ACCESS && + bo_flags & XE_BO_FLAG_PINNED; } static void add_vram(struct xe_device *xe, struct xe_bo *bo, -- 2.50.1