drm/i915/bxt: Export pooled eu info to userspace

Pooled EU is a bxt only feature and kernel changes are already merged. This
feature is not yet exposed to userspace as the support was not yet
available. Beignet team expressed interest and added patches to use this.

Since we now have a user and patches to use them, expose them from the
kernel side as well.

v2: fix compile error

[1] https://lists.freedesktop.org/archives/beignet/2016-June/007698.html
[2] https://lists.freedesktop.org/archives/beignet/2016-June/007699.html

Cc: Winiarski, Michal <michal.winiarski@intel.com>
Cc: Zou, Nanhai <nanhai.zou@intel.com>
Cc: Yang, Rong R <rong.r.yang@intel.com>
Cc: Tim Gore <tim.gore@intel.com>
Cc: Jeff McGee <jeff.mcgee@intel.com>
Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1467369782-25992-1-git-send-email-arun.siluvery@linux.intel.com
Acked-by: Jani Nikula <jani.nikula@intel.com>

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index c580e24095b096bdea04b284b039ce2408ae6c87..8a2674013aef24da8c418458b2d8a0523762df4a 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -365,6 +365,12 @@ static int i915_getparam(struct drm_device *dev, void *data,
        case I915_PARAM_HAS_EXEC_SOFTPIN:
                value = 1;
                break;
+       case I915_PARAM_HAS_POOLED_EU:
+               value = HAS_POOLED_EU(dev);
+               break;
+       case I915_PARAM_MIN_EU_IN_POOL:
+               value = INTEL_INFO(dev)->min_eu_in_pool;
+               break;
        default:
                DRM_DEBUG("Unknown parameter %d\n", param->param);
                return -EINVAL;

diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h
index c17d63d8b54379be763de966b7a9ce8b70028aaa..a642bbc7777dcf6aaf8e48c67f3e27577c3836f6 100644 (file)
--- a/include/uapi/drm/i915_drm.h
+++ b/include/uapi/drm/i915_drm.h
@@ -361,6 +361,8 @@ typedef struct drm_i915_irq_wait {
 #define I915_PARAM_HAS_GPU_RESET        35
 #define I915_PARAM_HAS_RESOURCE_STREAMER 36
 #define I915_PARAM_HAS_EXEC_SOFTPIN     37
+#define I915_PARAM_HAS_POOLED_EU        38
+#define I915_PARAM_MIN_EU_IN_POOL       39
 
 typedef struct drm_i915_getparam {
        __s32 param;