In order to detect whether the predicate source registers can be used in a
later patch we will need to know the version number for the command parser.
This patch just adds a member to intel_screen and does an ioctl to get the
version.
---
src/mesa/drivers/dri/i965/intel_screen.c | 7 +++++++
src/mesa/drivers/dri/i965/intel_screen.h | 8 +++++++-
2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/src/mesa/drivers/dri/i965/intel_screen.c
b/src/mesa/drivers/dri/i965/intel_screen.c
index 6618c1a..ab7ac85 100644
--- a/src/mesa/drivers/dri/i965/intel_screen.c
+++ b/src/mesa/drivers/dri/i965/intel_screen.c
@@ -1362,6 +1362,13 @@ __DRIconfig **intelInitScreen2(__DRIscreen *psp)
(ret != -1 || errno != EINVAL);
}
+ struct drm_i915_getparam getparam;
+ getparam.param = I915_PARAM_CMD_PARSER_VERSION;
+ getparam.value = &intelScreen->cmd_parser_version;
+ const int ret = drmIoctl(psp->fd, DRM_IOCTL_I915_GETPARAM, &getparam);
+ if (ret == -1)
+ intelScreen->cmd_parser_version = 0;
+
psp->extensions = !intelScreen->has_context_reset_notification
? intelScreenExtensions : intelRobustScreenExtensions;
diff --git a/src/mesa/drivers/dri/i965/intel_screen.h
b/src/mesa/drivers/dri/i965/intel_screen.h
index 393315e..a7706b3 100644
--- a/src/mesa/drivers/dri/i965/intel_screen.h
+++ b/src/mesa/drivers/dri/i965/intel_screen.h
@@ -115,7 +115,13 @@ struct intel_screen
* Configuration cache with default values for all contexts
*/
driOptionCache optionCache;
-};
+
+ /**
+ * Version of the command parser reported by the
+ * I915_PARAM_CMD_PARSER_VERSION parameter
+ */
+ int cmd_parser_version;
+ };
extern void intelDestroyContext(__DRIcontext * driContextPriv);
--
1.9.3
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