diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-07-20 09:21:11 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-07-20 09:29:53 +0100 |
| commit | 04769652c8c7ad4779a4b943dcf889a2020226f4 (patch) | |
| tree | aeb6abe430789f85abf9aae0355e5a76b1af5a5c /drivers/gpu/drm/i915/intel_ringbuffer.h | |
| parent | c4b0930bf418d5fab1d75ab462f0a7ff155f1b33 (diff) | |
| download | linux-04769652c8c7ad4779a4b943dcf889a2020226f4.tar.gz linux-04769652c8c7ad4779a4b943dcf889a2020226f4.tar.bz2 linux-04769652c8c7ad4779a4b943dcf889a2020226f4.zip | |
drm/i915: Derive GEM requests from dma-fence
dma-buf provides a generic fence class for interoperation between
drivers. Internally we use the request structure as a fence, and so with
only a little bit of interfacing we can rebase those requests on top of
dma-buf fences. This will allow us, in the future, to pass those fences
back to userspace or between drivers.
v2: The fence_context needs to be globally unique, not just unique to
this device.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1469002875-2335-4-git-send-email-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index df7587ab1ba7..5cbafc00bfd5 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -146,6 +146,7 @@ struct intel_engine_cs { unsigned int exec_id; unsigned int hw_id; unsigned int guc_id; /* XXX same as hw_id? */ + u64 fence_context; u32 mmio_base; unsigned int irq_shift; struct intel_ringbuffer *buffer; |