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authorChris Wilson <chris@chris-wilson.co.uk>2016-10-28 13:58:46 +0100
committerChris Wilson <chris@chris-wilson.co.uk>2016-10-28 20:53:51 +0100
commit73cb97010d4fdd2a29f00cac14d206c7641c23d2 (patch)
tree12b4cce6baf04b330478ecfd85f002fd2c978db9 /drivers/gpu/drm/i915/i915_gem.h
parentc004a90b7263e3d5811f6ec7de0abb143f3099b3 (diff)
downloadtalos-obmc-linux-73cb97010d4fdd2a29f00cac14d206c7641c23d2.tar.gz
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drm/i915: Combine seqno + tracking into a global timeline struct
Our timelines are more than just a seqno. They also provide an ordered list of requests to be executed. Due to the restriction of handling individual address spaces, we are limited to a timeline per address space but we use a fence context per engine within. Our first step to introducing independent timelines per context (i.e. to allow each context to have a queue of requests to execute that have a defined set of dependencies on other requests) is to provide a timeline abstraction for the global execution queue. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20161028125858.23563-23-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem.h')
-rw-r--r--drivers/gpu/drm/i915/i915_gem.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.h b/drivers/gpu/drm/i915/i915_gem.h
index 8292e797d9b5..735580d72eb1 100644
--- a/drivers/gpu/drm/i915/i915_gem.h
+++ b/drivers/gpu/drm/i915/i915_gem.h
@@ -31,4 +31,6 @@
#define GEM_BUG_ON(expr)
#endif
+#define I915_NUM_ENGINES 5
+
#endif /* __I915_GEM_H__ */
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