[PATCH 1/3] i-g-t: check whether kernel has dual bsd ring

From: Zhipeng Gong <zhipeng.gong@intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: rodrigo.vivi@intel.com
Subject: [PATCH 1/3] i-g-t: check whether kernel has dual bsd ring
Date: Tue, 13 Jan 2015 08:50:19 +0800	[thread overview]
Message-ID: <1421110221-15634-2-git-send-email-zhipeng.gong@intel.com> (raw)
In-Reply-To: <1421110221-15634-1-git-send-email-zhipeng.gong@intel.com>

v2: change the number to be consistent with upstream (Zhipeng)

Signed-off-by: Zhipeng Gong <zhipeng.gong@intel.com>
---
 lib/ioctl_wrappers.c | 16 ++++++++++++++++
 lib/ioctl_wrappers.h |  1 +
 2 files changed, 17 insertions(+)

diff --git a/lib/ioctl_wrappers.c b/lib/ioctl_wrappers.c
index 5bca455..19a457a 100644
--- a/lib/ioctl_wrappers.c
+++ b/lib/ioctl_wrappers.c
@@ -854,6 +854,22 @@ bool gem_has_vebox(int fd)
 	return gem_has_enable_ring(fd,LOCAL_I915_PARAM_HAS_VEBOX);
 }
 
+#define LOCAL_I915_PARAM_HAS_BSD2 31
+/**
+ * gem_has_bsd2:
+ * @fd: open i915 drm file descriptor
+ *
+ * Feature test macro to query whether the BSD2 ring is available. This is simply
+ * a specific version of gem_has_enable_ring() for the BSD2 ring.
+ *
+ * Note that recent Bspec calls this the VCS ring for Video Command Submission.
+ *
+ * Returns: Whether the BSD ring is avaible or not.
+ */
+bool gem_has_bsd2(int fd)
+{
+	return gem_has_enable_ring(fd,LOCAL_I915_PARAM_HAS_BSD2);
+}
 /**
  * gem_available_aperture_size:
  * @fd: open i915 drm file descriptor
diff --git a/lib/ioctl_wrappers.h b/lib/ioctl_wrappers.h
index 2aa4198..30ab836 100644
--- a/lib/ioctl_wrappers.h
+++ b/lib/ioctl_wrappers.h
@@ -89,6 +89,7 @@ bool gem_has_enable_ring(int fd,int param);
 bool gem_has_bsd(int fd);
 bool gem_has_blt(int fd);
 bool gem_has_vebox(int fd);
+bool gem_has_bsd2(int fd);
 bool gem_uses_aliasing_ppgtt(int fd);
 int gem_available_fences(int fd);
 uint64_t gem_available_aperture_size(int fd);
-- 
1.8.3.1

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