6.12-stable review patch. If anyone has any objections, please let me know.
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From: Tomasz Rusinowicz tomasz.rusinowicz@intel.com
commit 50af7cab7520e46680cf4633bba6801443b75856 upstream.
The `struct ttm_resource->placement` contains TTM_PL_FLAG_* flags, but it was incorrectly tested for XE_PL_* flags. This caused xe_dma_buf_pin() to always fail when invoked for the second time. Fix this by checking the `mem_type` field instead.
Fixes: 7764222d54b7 ("drm/xe: Disallow pinning dma-bufs in VRAM") Cc: Thomas Hellström thomas.hellstrom@linux.intel.com Cc: Rodrigo Vivi rodrigo.vivi@intel.com Cc: Lucas De Marchi lucas.demarchi@intel.com Cc: "Thomas Hellström" thomas.hellstrom@linux.intel.com Cc: Michal Wajdeczko michal.wajdeczko@intel.com Cc: Matthew Brost matthew.brost@intel.com Cc: Matthew Auld matthew.auld@intel.com Cc: Nirmoy Das nirmoy.das@intel.com Cc: Jani Nikula jani.nikula@intel.com Cc: intel-xe@lists.freedesktop.org Cc: stable@vger.kernel.org # v6.8+ Signed-off-by: Tomasz Rusinowicz tomasz.rusinowicz@intel.com Signed-off-by: Jacek Lawrynowicz jacek.lawrynowicz@linux.intel.com Reviewed-by: Matthew Brost matthew.brost@intel.com Link: https://patchwork.freedesktop.org/patch/msgid/20250218100353.2137964-1-jacek... Signed-off-by: Thomas Hellström thomas.hellstrom@linux.intel.com (cherry picked from commit b96dabdba9b95f71ded50a1c094ee244408b2a8e) Signed-off-by: Thomas Hellström thomas.hellstrom@linux.intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/xe/xe_bo.h | 2 -- drivers/gpu/drm/xe/xe_dma_buf.c | 2 +- 2 files changed, 1 insertion(+), 3 deletions(-)
--- a/drivers/gpu/drm/xe/xe_bo.h +++ b/drivers/gpu/drm/xe/xe_bo.h @@ -314,7 +314,6 @@ static inline unsigned int xe_sg_segment
#define i915_gem_object_flush_if_display(obj) ((void)(obj))
-#if IS_ENABLED(CONFIG_DRM_XE_KUNIT_TEST) /** * xe_bo_is_mem_type - Whether the bo currently resides in the given * TTM memory type @@ -329,4 +328,3 @@ static inline bool xe_bo_is_mem_type(str return bo->ttm.resource->mem_type == mem_type; } #endif -#endif --- a/drivers/gpu/drm/xe/xe_dma_buf.c +++ b/drivers/gpu/drm/xe/xe_dma_buf.c @@ -58,7 +58,7 @@ static int xe_dma_buf_pin(struct dma_buf * 1) Avoid pinning in a placement not accessible to some importers. * 2) Pinning in VRAM requires PIN accounting which is a to-do. */ - if (xe_bo_is_pinned(bo) && bo->ttm.resource->placement != XE_PL_TT) { + if (xe_bo_is_pinned(bo) && !xe_bo_is_mem_type(bo, XE_PL_TT)) { drm_dbg(&xe->drm, "Can't migrate pinned bo for dma-buf pin.\n"); return -EINVAL; }