Merge tag 'drm-misc-next-2024-03-28' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

Two misc-next in one.

drm-misc-next for v6.10-rc1:

The deal of a lifetime! You get ALL of the previous
drm-misc-next-2024-03-21-1 tag!!

But WAIT, there's MORE!

Cross-subsystem Changes:
- Assorted DT binding updates.

Core Changes:
- Clarify how optional wait_hpd_asserted is.
- Shuffle Kconfig names around.

Driver Changes:
- Assorted build fixes for panthor, imagination,
- Add AUO B120XAN01.0 panels.
- Assorted small fixes to panthor, panfrost.

drm-misc-next for v6.10:
UAPI Changes:
- Move some nouveau magic constants to uapi.

Cross-subsystem Changes:
- Move drm-misc to gitlab and freedesktop hosting.
- Add entries for panfrost.

Core Changes:
- Improve placement for TTM bo's in idle/busy handling.
- Improve drm/bridge init ordering.
- Add CONFIG_DRM_WERROR, and use W=1 for drm.
- Assorted documentation updates.
- Make more (drm and driver) headers self-contained and add header
  guards.
- Grab reservation lock in pin/unpin callbacks.
- Fix reservation lock handling for vmap.
- Add edp and edid panel matching, use it to fix a nearly identical
  panel.

Driver Changes:
- Add drm/panthor driver and assorted fixes.
- Assorted small fixes to xlnx, panel-edp, tidss, ci, nouveau,
  panel and bridge drivers.
- Add Samsung s6e3fa7, BOE NT116WHM-N44, CMN N116BCA-EA1,
  CrystalClear CMT430B19N00, Startek KD050HDFIA020-C020A,
  powertip PH128800T006-ZHC01 panels.
- Fix console for omapdrm.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/bea310a6-6ff6-477e-9363-f9f053cfd12a@linux.intel.com

1 files changed, 30 insertions, 13 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index db8cbf615112..1e2d28fd10dc 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -467,17 +467,14 @@ nouveau_bo_placement_set(struct nouveau_bo *nvbo, uint32_t domain,
 	set_placement_range(nvbo, domain);
 }
 
-int
-nouveau_bo_pin(struct nouveau_bo *nvbo, uint32_t domain, bool contig)
+int nouveau_bo_pin_locked(struct nouveau_bo *nvbo, uint32_t domain, bool contig)
 {
 	struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
 	struct ttm_buffer_object *bo = &nvbo->bo;
 	bool force = false, evict = false;
-	int ret;
+	int ret = 0;
 
-	ret = ttm_bo_reserve(bo, false, false, NULL);
-	if (ret)
-		return ret;
+	dma_resv_assert_held(bo->base.resv);
 
 	if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA &&
 	    domain == NOUVEAU_GEM_DOMAIN_VRAM && contig) {
@@ -540,20 +537,15 @@ nouveau_bo_pin(struct nouveau_bo *nvbo, uint32_t domain, bool contig)
 out:
 	if (force && ret)
 		nvbo->contig = false;
-	ttm_bo_unreserve(bo);
 	return ret;
 }
 
-int
-nouveau_bo_unpin(struct nouveau_bo *nvbo)
+void nouveau_bo_unpin_locked(struct nouveau_bo *nvbo)
 {
 	struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
 	struct ttm_buffer_object *bo = &nvbo->bo;
-	int ret;
 
-	ret = ttm_bo_reserve(bo, false, false, NULL);
-	if (ret)
-		return ret;
+	dma_resv_assert_held(bo->base.resv);
 
 	ttm_bo_unpin(&nvbo->bo);
 	if (!nvbo->bo.pin_count) {
@@ -568,8 +560,33 @@ nouveau_bo_unpin(struct nouveau_bo *nvbo)
 			break;
 		}
 	}
+}
+
+int nouveau_bo_pin(struct nouveau_bo *nvbo, uint32_t domain, bool contig)
+{
+	struct ttm_buffer_object *bo = &nvbo->bo;
+	int ret;
 
+	ret = ttm_bo_reserve(bo, false, false, NULL);
+	if (ret)
+		return ret;
+	ret = nouveau_bo_pin_locked(nvbo, domain, contig);
+	ttm_bo_unreserve(bo);
+
+	return ret;
+}
+
+int nouveau_bo_unpin(struct nouveau_bo *nvbo)
+{
+	struct ttm_buffer_object *bo = &nvbo->bo;
+	int ret;
+
+	ret = ttm_bo_reserve(bo, false, false, NULL);
+	if (ret)
+		return ret;
+	nouveau_bo_unpin_locked(nvbo);
 	ttm_bo_unreserve(bo);
+
 	return 0;
 }