AuxXxilium/linux_dsm_epyc7002
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43c29e1f44
linux_dsm_epyc7002/drivers/gpu/drm/i915/gvt
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Changbin Du 43c29e1f44 drm/i915/gvt: remove redundant ring id check which cause significant CPU misprediction 
From perf data, found a significant overhead at ring id check in the
function get_opcode. This inline function is frequently used.

Since Intel static predictor will predict the branch to fall through
so the prediction most fail. This is wasting CPU pipeline resource.
We do not need check the engine id everywhere, it should be reliable.

Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2017-04-12 13:57:51 +08:00
..
aperture_gm.c drm/i915/gvt: replace the gvt_err with gvt_vgpu_err 2017-03-17 16:46:45 +08:00
cfg_space.c drm/i915/gvt: protect RO and Rsvd bits of virtual vgpu configuration space 2017-03-06 17:29:02 +08:00
cmd_parser.c drm/i915/gvt: remove redundant ring id check which cause significant CPU misprediction 2017-04-12 13:57:51 +08:00
cmd_parser.h drm/i915/gvt: vGPU command scanner 2016-10-14 18:15:25 +08:00
debug.h drm/i915/gvt: replace the gvt_err with gvt_vgpu_err 2017-03-17 16:46:45 +08:00
display.c drm/i915/gvt: Add KBL dispatch logic in each function. 2017-03-29 15:28:51 +08:00
display.h drm/i915/gvt: add resolution definition for vGPU type 2017-02-24 13:25:18 +08:00
edid.c drm/i915/gvt: replace the gvt_err with gvt_vgpu_err 2017-03-17 16:46:45 +08:00
edid.h drm/i915/gvt: Fix static checker warning on intel_gvt_i2c_handle_aux_ch_write() 2016-11-14 18:06:44 +08:00
execlist.c drm/i915/gvt: remove workload from intel_shadow_wa_ctx structure 2017-03-29 15:29:21 +08:00
execlist.h drm/i915/gvt: fix crash in vgpu_reset_execlist 2016-11-14 18:06:43 +08:00
firmware.c drm/i915/gvt: set default value to 0 for unhandled mmio regs 2017-02-23 17:32:16 +08:00
gtt.c drm/i915/gvt: Add KBL dispatch logic in each function. 2017-03-29 15:28:51 +08:00
gtt.h drm/i915/gvt: introuduce intel_vgpu_reset_gtt() to reset gtt 2017-01-13 15:05:38 +08:00
gvt.c drm/i915/gvt: create an idle vGPU 2017-03-30 13:34:07 +08:00
gvt.h drm/i915/gvt: create an idle vGPU 2017-03-30 13:34:07 +08:00
handlers.c drm/i915/gvt: add some statistic routine for scheduler 2017-03-30 13:32:28 +08:00
hypercall.h drm/i915/gvt: remove detect_host() MPT hook 2017-02-07 17:21:44 +08:00
interrupt.c drm/i915/gvt: Add KBL dispatch logic in each function. 2017-03-29 15:28:51 +08:00
interrupt.h drm/i915/gvt: vGPU command scanner 2016-10-14 18:15:25 +08:00
kvmgt.c drm/i915/gvt: define weight according to vGPU type 2017-03-30 13:33:58 +08:00
Makefile drm/i915/gvt/kvmgt: add vfio/mdev support to KVMGT 2016-12-16 16:55:26 +08:00
mmio.c drm/i915/gvt: replace the gvt_err with gvt_vgpu_err 2017-03-17 16:46:45 +08:00
mmio.h drm/i915/gvt: Add KBL platform definition. 2017-03-29 15:28:51 +08:00
mpt.h drm/i915/gvt: remove detect_host() MPT hook 2017-02-07 17:21:44 +08:00
opregion.c drm/i915/gvt: replace the gvt_err with gvt_vgpu_err 2017-03-17 16:46:45 +08:00
reg.h drm/i915/gvt: cleanup opregion memory allocation code 2017-01-09 11:11:32 +08:00
render.c drm/i915/gvt: remove redundant platform check for mocs load/restore 2017-04-12 13:57:46 +08:00
render.h drm/i915/gvt: vGPU context switch 2016-10-14 18:15:13 +08:00
sched_policy.c drm/i915/gvt: cleanup some too chatty scheduler message 2017-04-06 17:33:39 +08:00
sched_policy.h drm/i915/gvt: use hrtimer replace delayed_work in scheduler 2017-03-30 13:32:24 +08:00
scheduler.c drm/i915/gvt: Add KBL dispatch logic in each function. 2017-03-29 15:28:51 +08:00
scheduler.h drm/i915/gvt: remove workload from intel_shadow_wa_ctx structure 2017-03-29 15:29:21 +08:00
trace_points.c drm/i915/gvt: trace stub 2016-10-14 18:12:11 +08:00
trace.h drm/i915/gvt: vGPU command scanner 2016-10-14 18:15:25 +08:00
vgpu.c drm/i915/gvt: create an idle vGPU 2017-03-30 13:34:07 +08:00