On 11/18/2016 08:47 AM, Xiang, Haihao wrote:
On Wed, 2016-11-16 at 21:06 -0500, Zhao Yakui wrote:
This info can be used to configure the max EU threads of GPU device.
eu_total * 6
Signed-off-by: Zhao Yakui<[email protected]>
---
src/intel_driver.c | 13 +++++++++++++
src/intel_driver.h | 3 +++
2 files changed, 16 insertions(+)
diff --git a/src/intel_driver.c b/src/intel_driver.c
index bb19401..a2c8c71 100644
--- a/src/intel_driver.c
+++ b/src/intel_driver.c
@@ -50,6 +50,12 @@ uint32_t g_intel_debug_option_flags = 0;
#define LOCAL_I915_PARAM_HAS_HUC 42
#endif
+#ifdef I915_PARAM_EU_TOTAL
+#define LOCAL_I915_PARAM_EU_TOTAL I915_PARAM_EU_TOTAL
+#else
+#define LOCAL_I915_PARAM_EU_TOTAL 34
+#endif
+
static Bool
intel_driver_get_param(struct intel_driver_data *intel, int param,
int *value)
{
@@ -142,6 +148,13 @@ intel_driver_init(VADriverContextP ctx)
if (intel_driver_get_param(intel, LOCAL_I915_PARAM_HAS_HUC,
&ret_value))
intel->has_huc = !!ret_value;
+ intel->has_eu_flag = 0;
+ intel->eu_total = 0;
+ if (intel_driver_get_param(intel, LOCAL_I915_PARAM_EU_TOTAL,
&ret_value)) {
+ intel->has_eu_flag = !!ret_value;
+ intel->eu_total = ret_value;
+ }
+
intel_driver_get_revid(intel,&intel->revision);
return true;
}
diff --git a/src/intel_driver.h b/src/intel_driver.h
index dcdc03b..a02bfa8 100644
--- a/src/intel_driver.h
+++ b/src/intel_driver.h
@@ -182,6 +182,9 @@ struct intel_driver_data
unsigned int has_vebox : 1; /* Flag: has VEBOX unit */
unsigned int has_bsd2 : 1; /* Flag: has the second BSD video
ring unit */
unsigned int has_huc : 1; /* Flag: has a fully loaded HuC
firmware? */
+ unsigned int has_eu_flag : 1; /* Flag: Kernel will return EU
counts */
+
+ int eu_total;
adding eu_total is enough, we can use the following if ... else
statement later
In fact the has_eu_flag is equal to the condition check.
> if (intel->eu_total > 0)
It only use extra bit_field to avoid calling it every time.
if (intel->eu_total> 0) {
...
} else {
...
}
It avoids setting the number of thread to 0 (although it is unlikely)
as well.
const struct intel_device_info *device_info;
};
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