summaryrefslogtreecommitdiffstats
path: root/tools/include/uapi/drm
diff options
context:
space:
mode:
authorLinus Walleij <linus.walleij@linaro.org>2020-05-27 16:15:52 +0200
committerLinus Walleij <linus.walleij@linaro.org>2020-05-27 16:15:52 +0200
commitce1d966a302229a88bcb4398a5ca76d657b06848 (patch)
tree812671d666fef8b5a955087cff5dc7b3cd555a35 /tools/include/uapi/drm
parentMerge tag 'gpio-updates-for-v5.8-part2' of git://git.kernel.org/pub/scm/linux... (diff)
parentLinux 5.7-rc7 (diff)
downloadlinux-ce1d966a302229a88bcb4398a5ca76d657b06848.tar.xz
linux-ce1d966a302229a88bcb4398a5ca76d657b06848.zip
Merge tag 'v5.7-rc7' into devel
Linux 5.7-rc7
Diffstat (limited to 'tools/include/uapi/drm')
-rw-r--r--tools/include/uapi/drm/drm.h2
-rw-r--r--tools/include/uapi/drm/i915_drm.h21
2 files changed, 23 insertions, 0 deletions
diff --git a/tools/include/uapi/drm/drm.h b/tools/include/uapi/drm/drm.h
index 868bf7996c0f..808b48a93330 100644
--- a/tools/include/uapi/drm/drm.h
+++ b/tools/include/uapi/drm/drm.h
@@ -948,6 +948,8 @@ extern "C" {
#define DRM_IOCTL_SYNCOBJ_TRANSFER DRM_IOWR(0xCC, struct drm_syncobj_transfer)
#define DRM_IOCTL_SYNCOBJ_TIMELINE_SIGNAL DRM_IOWR(0xCD, struct drm_syncobj_timeline_array)
+#define DRM_IOCTL_MODE_GETFB2 DRM_IOWR(0xCE, struct drm_mode_fb_cmd2)
+
/**
* Device specific ioctls should only be in their respective headers
* The device specific ioctl range is from 0x40 to 0x9f.
diff --git a/tools/include/uapi/drm/i915_drm.h b/tools/include/uapi/drm/i915_drm.h
index 829c0a48577f..2813e579b480 100644
--- a/tools/include/uapi/drm/i915_drm.h
+++ b/tools/include/uapi/drm/i915_drm.h
@@ -1619,6 +1619,27 @@ struct drm_i915_gem_context_param {
* By default, new contexts allow persistence.
*/
#define I915_CONTEXT_PARAM_PERSISTENCE 0xb
+
+/*
+ * I915_CONTEXT_PARAM_RINGSIZE:
+ *
+ * Sets the size of the CS ringbuffer to use for logical ring contexts. This
+ * applies a limit of how many batches can be queued to HW before the caller
+ * is blocked due to lack of space for more commands.
+ *
+ * Only reliably possible to be set prior to first use, i.e. during
+ * construction. At any later point, the current execution must be flushed as
+ * the ring can only be changed while the context is idle. Note, the ringsize
+ * can be specified as a constructor property, see
+ * I915_CONTEXT_CREATE_EXT_SETPARAM, but can also be set later if required.
+ *
+ * Only applies to the current set of engine and lost when those engines
+ * are replaced by a new mapping (see I915_CONTEXT_PARAM_ENGINES).
+ *
+ * Must be between 4 - 512 KiB, in intervals of page size [4 KiB].
+ * Default is 16 KiB.
+ */
+#define I915_CONTEXT_PARAM_RINGSIZE 0xc
/* Must be kept compact -- no holes and well documented */
__u64 value;