[Libva] [LIBVA_INTEL_DRIVER][PATCH V3 1/4] Query the kernel API to check the EU counts of GPU device

[Xiang, Haihao]

Thanks for the patched, pushed to git.

>-----Original Message-----
>From: Libva [mailto:libva-bounces at lists.freedesktop.org] On Behalf Of Zhao
>Yakui
>Sent: Monday, November 21, 2016 3:42 AM
>To: libva at lists.freedesktop.org
>Subject: [Libva] [LIBVA_INTEL_DRIVER][PATCH V3 1/4] Query the kernel API
>to check the EU counts of GPU device
>
>This info can be used to configure the max EU threads of GPU device.
>>eu_total * 6
>
>V2->V3: Refresh the patches again.
>V1->V2: Remove the extra bit_field of has_eu_flag. Instead the eu_total
>V1->> 0
>can be used.
>
>Signed-off-by: Zhao Yakui <yakui.zhao at intel.com>
>Reviewed-by: Charles Daniel <daniel.charles at intel.com>
>---
> src/intel_driver.c | 11 +++++++++++
> src/intel_driver.h |  2 ++
> 2 files changed, 13 insertions(+)
>
>diff --git a/src/intel_driver.c b/src/intel_driver.c index bb19401..67d7de1
>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 +148,11 @@ intel_driver_init(VADriverContextP ctx)
>     if (intel_driver_get_param(intel, LOCAL_I915_PARAM_HAS_HUC,
>&ret_value))
>         intel->has_huc = !!ret_value;
>
>+    intel->eu_total = 0;
>+    if (intel_driver_get_param(intel, LOCAL_I915_PARAM_EU_TOTAL,
>&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 4ff707d..036e150
>100644
>--- a/src/intel_driver.h
>+++ b/src/intel_driver.h
>@@ -189,6 +189,8 @@ struct intel_driver_data
>     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? */
>
>+    int eu_total;
>+
>     const struct intel_device_info *device_info;  };
>
>--
>2.8.3
>
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