Merge tag 'drm-misc-next-2024-09-20' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

drm-misc-next for v6.12:

UAPI Changes:
- Add panthor/DEV_QUERY_TIMESTAMP_INFO query.

Cross-subsystem Changes:
- Updated dt bindings.
- Add documentation explaining default errnos for fences.
- Mark dma-buf heaps creation functions as __init.

Core Changes:
- Split DSC helpers from DP helpers.
- Clang build fixes for drm/mm test.
- Remove simple pipeline support for gem-vram,
  no longer any users left after converting bochs.
- Add erno to drm_sched_start to distinguish between GPU and queue
  reset.
- Add drm_framebuffer testcases.
- Fix uninitialized spinlock acquisition with CONFIG_DRM_PANIC=n.
- Use read_trylock instead of read_lock in dma_fence_begin_signalling to
  quiesce lockdep.

Driver Changes:
- Assorted small fixes and updates for tegra, host1x, imagination,
  nouveau, panfrost, panthor, panel/ili9341, mali, exynos,
  panel/samsung-s6e3fa7, ast, bridge/ti-sn65dsi86, panel/himax-hx83112a,
  bridge/tc358767, bridge/imx8mp-hdmi-tx, panel/khadas-ts050,
  panel/nt36523, panel/sony-acx565akm, kmb, accel/qaic, omap, v3d.
- Add bridge/TI TDP158.
- Assorted documentation updates.
- Convert bochs from simple drm to gem shmem, and check modes
  against available memory.
- Many VC4 fixes, most related to scaling and YUV support.
- Convert some drivers to use SYSTEM_SLEEP_PM_OPS and RUNTIME_PM_OPS.
- Rockchip 4k@60 support.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/445713a6-2427-4c53-8ec2-3a894ec62405@linux.intel.com

3 files changed, 12 insertions, 1 deletions

diff --git a/include/linux/dma-fence.h b/include/linux/dma-fence.h
index e06bad467f55..e7ad819962e3 100644
--- a/include/linux/dma-fence.h
+++ b/include/linux/dma-fence.h
@@ -574,6 +574,12 @@ int dma_fence_get_status(struct dma_fence *fence);
  * rather than success. This must be set before signaling (so that the value
  * is visible before any waiters on the signal callback are woken). This
  * helper exists to help catching erroneous setting of #dma_fence.error.
+ *
+ * Examples of error codes which drivers should use:
+ *
+ * * %-ENODATA	 This operation produced no data, no other operation affected.
+ * * %-ECANCELED All operations from the same context have been canceled.
+ * * %-ETIME	 Operation caused a timeout and potentially device reset.
  */
 static inline void dma_fence_set_error(struct dma_fence *fence,
 				       int error)
diff --git a/include/linux/host1x.h b/include/linux/host1x.h
index 9c8119ed13a4..5a7a81e5f9bd 100644
--- a/include/linux/host1x.h
+++ b/include/linux/host1x.h
@@ -14,12 +14,17 @@
 
 enum host1x_class {
 	HOST1X_CLASS_HOST1X = 0x1,
+	HOST1X_CLASS_NVJPG1 = 0x7,
+	HOST1X_CLASS_NVENC = 0x21,
+	HOST1X_CLASS_NVENC1 = 0x22,
 	HOST1X_CLASS_GR2D = 0x51,
 	HOST1X_CLASS_GR2D_SB = 0x52,
 	HOST1X_CLASS_VIC = 0x5D,
 	HOST1X_CLASS_GR3D = 0x60,
+	HOST1X_CLASS_NVJPG = 0xC0,
 	HOST1X_CLASS_NVDEC = 0xF0,
 	HOST1X_CLASS_NVDEC1 = 0xF5,
+	HOST1X_CLASS_OFA = 0xF8,
 };
 
 struct host1x;
diff --git a/include/linux/host1x_context_bus.h b/include/linux/host1x_context_bus.h
index 72462737a6db..c928cb432680 100644
--- a/include/linux/host1x_context_bus.h
+++ b/include/linux/host1x_context_bus.h
@@ -9,7 +9,7 @@
 #include <linux/device.h>
 
 #ifdef CONFIG_TEGRA_HOST1X_CONTEXT_BUS
-extern struct bus_type host1x_context_device_bus_type;
+extern const struct bus_type host1x_context_device_bus_type;
 #endif
 
 #endif