diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/drm/i915_drm.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index d8d10d932759..b4505d55990d 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -1308,14 +1308,16 @@ struct drm_i915_reg_read { * be specified */ __u64 offset; +#define I915_REG_READ_8B_WA BIT(0) + __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. + * single instruction 8byte read, in order to workaround that pass + * flag I915_REG_READ_8B_WA in offset field. * */ |