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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
commitf4cdf7ca9a1fdcca413157df19753f388a5a224e (patch)
tree60a31895b2446cd7fa27514e8c2843534a0de0da /include/drm/drm_ras.h
downloadlinux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.tar.gz
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Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted
Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ...
Diffstat (limited to 'include/drm/drm_ras.h')
-rw-r--r--include/drm/drm_ras.h88
1 files changed, 88 insertions, 0 deletions
diff --git a/include/drm/drm_ras.h b/include/drm/drm_ras.h
new file mode 100644
index 000000000..0beede3dd
--- /dev/null
+++ b/include/drm/drm_ras.h
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2026 Intel Corporation
+ */
+
+#ifndef __DRM_RAS_H__
+#define __DRM_RAS_H__
+
+#include <linux/types.h>
+
+#include <uapi/drm/drm_ras.h>
+
+/**
+ * struct drm_ras_node - A DRM RAS Node
+ */
+struct drm_ras_node {
+ /** @id: Unique identifier for the node. Dynamically assigned. */
+ u32 id;
+ /**
+ * @device_name: Human-readable name of the device. Given by the driver.
+ */
+ const char *device_name;
+ /** @node_name: Human-readable name of the node. Given by the driver. */
+ const char *node_name;
+ /** @type: Type of the node (enum drm_ras_node_type). */
+ enum drm_ras_node_type type;
+
+ /* Error-Counter Related Callback and Variables */
+
+ /** @error_counter_range: Range of valid Error IDs for this node. */
+ struct {
+ /** @first: First valid Error ID. */
+ u32 first;
+ /** @last: Last valid Error ID. Mandatory entry. */
+ u32 last;
+ } error_counter_range;
+
+ /**
+ * @query_error_counter:
+ *
+ * This callback is used by drm-ras to query a specific error counter.
+ * Used for input check and to iterate all error counters in a node.
+ *
+ * Driver should expect query_error_counter() to be called with
+ * error_id from `error_counter_range.first` to
+ * `error_counter_range.last`.
+ *
+ * The @query_error_counter is a mandatory callback for
+ * error_counter_node.
+ *
+ * Returns: 0 on success,
+ * -ENOENT when error_id is not supported as an indication that
+ * drm_ras should silently skip this entry. Used for
+ * supporting non-contiguous error ranges.
+ * Driver is responsible for maintaining the list of
+ * supported error IDs in the range of first to last.
+ * Other negative values on errors that should terminate the
+ * netlink query.
+ */
+ int (*query_error_counter)(struct drm_ras_node *node, u32 error_id,
+ const char **name, u32 *val);
+
+ /**
+ * @clear_error_counter:
+ *
+ * This callback is used by drm_ras to clear a specific error counter.
+ * Driver should implement this callback to support clearing error counters
+ * of a node.
+ *
+ * Returns: 0 on success, negative error code on failure.
+ */
+ int (*clear_error_counter)(struct drm_ras_node *node, u32 error_id);
+
+ /** @priv: Driver private data */
+ void *priv;
+};
+
+struct drm_device;
+
+#if IS_ENABLED(CONFIG_DRM_RAS)
+int drm_ras_node_register(struct drm_ras_node *node);
+void drm_ras_node_unregister(struct drm_ras_node *node);
+#else
+static inline int drm_ras_node_register(struct drm_ras_node *node) { return 0; }
+static inline void drm_ras_node_unregister(struct drm_ras_node *node) { }
+#endif
+
+#endif