V1->V2: Follow Daniel's comment to do the following update:
a. consider the stolen check for BDW in kernel/early-quirks.c in patch 01
b. update the comment in Patch 04
c. use the simple ping-pong mechanism to add the support of dual BSD rings.
The further optimization will be considered in another patch set.
This is the patch set that tries to add the support of dual BSD rings on BDW
GT3. Based on hardware spec, the BDW GT3 has two independent BSD rings, which
can be used to process the video commands. To be simpler, it is transparent
to user-space driver/middleware. In such case the kernel driver will decide
which ring is to dispatch the BSD video command.
As every BSD ring is powerful, it is enough to dispatch the BSD video command
based on the drm fd. In such case the different BSD ring is used for video playing
back and encoding.
Zhao Yakui (6):
drm/i915: Split the BDW device definition to prepare for dual BSD
rings on BDW GT3
drm/i915:Initialize the second BSD ring on BDW GT3 machine
drm/i915:Handle the irq interrupt for the second BSD ring
drm/i915:Add the VCS2 switch in Intel_ring_setup_status_page for Gen7 to
remove the switch check warning
drm/i915:Update the restrict check to filter out wrong Ring ID
passed by user-space
drm/i915:Use the coarse ping-pong mechanism based on drm fd to dispatch the
BSD command on BDW GT3
drivers/gpu/drm/i915/i915_dma.c | 3 ++
drivers/gpu/drm/i915/i915_drv.c | 26 +++++++++++-
drivers/gpu/drm/i915/i915_drv.h | 5 +++
drivers/gpu/drm/i915/i915_gem.c | 9 ++++-
drivers/gpu/drm/i915/i915_gem_execbuffer.c | 39 +++++++++++++++++-
drivers/gpu/drm/i915/i915_gpu_error.c | 1 +
drivers/gpu/drm/i915/i915_irq.c | 5 ++-
drivers/gpu/drm/i915/i915_reg.h | 1 +
drivers/gpu/drm/i915/intel_ringbuffer.c | 59 ++++++++++++++++++++++++++++
drivers/gpu/drm/i915/intel_ringbuffer.h | 5 ++-
include/drm/i915_pciids.h | 22 ++++++++---
11 files changed, 163 insertions(+), 12 deletions(-)
--
1.7.10.1
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