path: root/include/uapi/drm/i915_drm.h
diff options
authorAnusha Srivatsa <>2017-01-18 08:05:58 -0800
committerJani Nikula <>2017-01-19 11:19:10 +0200
commit5464cd657632502c61c64775dffef1cc7ebd4839 (patch)
tree3299ee0544710a33b221cfbeb1944c46ce77a59f /include/uapi/drm/i915_drm.h
parentdac84a388528ab002b517213be47f53dc0fd978a (diff)
drm/i915/get_params: Add HuC status to getparams
This patch will allow for getparams to return the status of the HuC. As the HuC has to be validated by the GuC this patch uses the validated status to show when the HuC is loaded and ready for use. You cannot use the loaded status as with the GuC as the HuC is verified after it is loaded and is not usable until it is verified. v2: removed the forewakes as the registers are already force-woken. (T.Ursulin) v3: rebased on top of drm-tip. Removed any reference to intel_huc.h v4: rebased. Rename I915_PARAM_HAS_HUC to I915_PARAM_HUC_STATUS. Remove intel_is_huc_valid() since it is used only in one place. Put the case of I915_PARAM_HAS_HUC() in the right place. v5: rebased. Add a comment to specify that I915_READ(reg) does not read garbage value. The register HUC_STATUS2 is force woken and no rpm is needed. Signed-off-by: Anusha Srivatsa <> Signed-off-by: Peter Antoine <> Reviewed-by: Arkadiusz Hiler <> Signed-off-by: Jani Nikula <> Link:
Diffstat (limited to 'include/uapi/drm/i915_drm.h')
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h
index da32c2f6c3f9..57093b455db6 100644
--- a/include/uapi/drm/i915_drm.h
+++ b/include/uapi/drm/i915_drm.h
@@ -395,6 +395,7 @@ typedef struct drm_i915_irq_wait {
* priorities and the driver will attempt to execute batches in priority order.
+#define I915_PARAM_HUC_STATUS 42
typedef struct drm_i915_getparam {
__s32 param;