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authorDave Airlie <airlied@redhat.com>2015-07-24 11:52:09 +1000
committerDave Airlie <airlied@redhat.com>2015-07-24 11:52:09 +1000
commit4db9a82f1efa18304e51d68ef056b045050b9153 (patch)
tree1c55391c98b4c4f61a66ddf9e4e205512c19386a /include/uapi
parent762043aa77ad6de79236f3a9e6281f84e4fe9788 (diff)
parent648a9bc5308d952f2c80772301b339f73026f013 (diff)
Merge tag 'drm-intel-fixes-2015-07-23' of git://anongit.freedesktop.org/drm-intel into drm-fixes
arb_timer kernel side fix from Chris. * tag 'drm-intel-fixes-2015-07-23' of git://anongit.freedesktop.org/drm-intel: drm/i915: Use two 32bit reads for select 64bit REG_READ ioctls
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/drm/i915_drm.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h
index 6e1a2ed116cb..db809b722985 100644
--- a/include/uapi/drm/i915_drm.h
+++ b/include/uapi/drm/i915_drm.h
@@ -1070,6 +1070,14 @@ struct drm_i915_reg_read {
__u64 offset;
__u64 val; /* Return value */
};
+/* Known registers:
+ *
+ * Render engine timestamp - 0x2358 + 64bit - gen7+
+ * - Note this register returns an invalid value if using the default
+ * single instruction 8byte read, in order to workaround that use
+ * offset (0x2538 | 1) instead.
+ *
+ */
struct drm_i915_reset_stats {
__u32 ctx_id;