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cf9ba27840
linux/drivers/gpu/drm/i915
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Chris Wilson cf9ba27840 drm/i915/selftests: Disable C-states when measuring RPS frequency response 
Let's isolate the impact of cpu frequency selection on determing the GPU
throughput in response to selection of RPS frequencies.

For real systems, we do have to be concerned with the impact of
integrating c-states, p-states and rp-states, but for the sake of
proving whether or not RPS works, one baby step at a time.

For the record, as one would hope, it does not seem to impact on the
measured performance, but we do it anyway to reduce the number of
variables. Later, we can extend the testing to encourage the the
cpu/pkg to try and sleep while the GPU is busy.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200421142236.8614-1-chris@chris-wilson.co.uk
Link: https://patchwork.freedesktop.org/patch/msgid/20200421142236.8614-1-chris@chris-wilson.co.uk
2020-04-21 16:24:34 +01:00
..
display drm/i915/display/vlv_dsi: Prefer drm_WARN_ON over WARN_ON 2020-04-21 11:23:17 +03:00
gem drm/i915/selftests: Fix i915_address_space refcnt leak 2020-04-20 20:17:50 +01:00
gt drm/i915/selftests: Disable C-states when measuring RPS frequency response 2020-04-21 16:24:34 +01:00
gvt Merge drm/drm-next into drm-intel-next-queued 2020-04-16 14:35:16 +03:00
selftests drm/i915/selftests: Move gpu energy measurement into its own little lib 2020-04-17 18:48:51 +01:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
i915_active_types.h
i915_active.c drm/i915: Allow asynchronous waits on the i915_active barriers 2020-04-06 19:48:06 +01:00
i915_active.h drm/i915: Allow asynchronous waits on the i915_active barriers 2020-04-06 19:48:06 +01:00
i915_buddy.c drm/i915/buddy: avoid double list_add 2020-03-06 14:33:08 +00:00
i915_buddy.h
i915_cmd_parser.c drm/i915/cmd_parser: conversion to struct drm_device logging macros. 2020-02-04 11:29:40 +02:00
i915_debugfs_params.c
i915_debugfs_params.h
i915_debugfs.c drm/i915/debugfs: use struct drm_device based logging 2020-04-08 13:49:35 +03:00
i915_debugfs.h drm/i915: split out display debugfs to a separate file 2020-02-14 13:26:51 +02:00
i915_drv.c drm/i915: Refactor setting dma info to a common helper 2020-04-18 07:49:11 +01:00
i915_drv.h drm/i915: Update DRIVER_DATE to 20200417 2020-04-17 09:35:00 +03:00
i915_fixed.h
i915_gem_evict.c drm/i915/evict: watch out for unevictable nodes 2020-04-08 21:39:48 +01:00
i915_gem_gtt.c drm/i915: significantly reduce the use of <drm/i915_drm.h> 2020-02-27 08:35:09 +02:00
i915_gem_gtt.h
i915_gem.c drm/i915/gem: Drop cached obj->bind_count 2020-04-02 01:17:39 +01:00
i915_gem.h
i915_getparam.c
i915_globals.c
i915_globals.h
i915_gpu_error.c drm/i915/error: prefer struct drm_device based logging 2020-04-08 13:49:35 +03:00
i915_gpu_error.h drm/i915: Track hw reported context runtime 2020-02-16 15:16:22 +00:00
i915_ioc32.c drm/i915: add i915_ioc32.h for compat 2020-03-02 13:32:37 +02:00
i915_ioc32.h drm/i915: add i915_ioc32.h for compat 2020-03-02 13:32:37 +02:00
i915_irq.c Merge drm/drm-next into drm-intel-next-queued 2020-04-16 14:35:16 +03:00
i915_irq.h drm/i915: Convert to CRTC VBLANK callbacks 2020-02-13 13:08:13 +01:00
i915_memcpy.c drm/i915: remove always-defined CONFIG_AS_MOVNTDQA 2020-04-09 00:01:59 +09:00
i915_memcpy.h
i915_mm.c
i915_params.c
i915_params.h drm/i915: Mark i915.reset as unsigned 2020-02-05 18:51:52 +00:00
i915_pci.c drm/i915: Refactor setting dma info to a common helper 2020-04-18 07:49:11 +01:00
i915_perf_types.h drm/i915/perf: Schedule oa_config after modifying the contexts 2020-03-30 18:20:34 +01:00
i915_perf.c drm/i915: Make exclusive awaits on i915_active optional 2020-04-06 19:48:05 +01:00
i915_perf.h
i915_pmu.c drm/i915/pmu: prefer struct drm_device based logging 2020-04-08 13:49:35 +03:00
i915_pmu.h drm/i915: significantly reduce the use of <drm/i915_drm.h> 2020-02-27 08:35:09 +02:00
i915_priolist_types.h
i915_pvinfo.h
i915_query.c
i915_query.h
i915_reg.h drm/i915/selftests: Check RPS controls 2020-04-20 20:08:06 +01:00
i915_request.c drm/i915: Keep a per-engine request pool 2020-04-03 15:20:03 +01:00
i915_request.h drm/i915: Keep a per-engine request pool 2020-04-03 15:20:03 +01:00
i915_scatterlist.c
i915_scatterlist.h
i915_scheduler_types.h
i915_scheduler.c drm/i915/gt: Include a few tracek for timeslicing 2020-03-31 21:42:12 +01:00
i915_scheduler.h
i915_selftest.h
i915_suspend.c drm/i915: significantly reduce the use of <drm/i915_drm.h> 2020-02-27 08:35:09 +02:00
i915_suspend.h
i915_sw_fence_work.c drm/i915: Immediately execute the fenced work 2020-03-25 13:05:04 +00:00
i915_sw_fence_work.h drm/i915: Immediately execute the fenced work 2020-03-25 13:05:04 +00:00
i915_sw_fence.c drm/i915: Prefer '%ps' for printing function symbol names 2020-03-19 16:18:14 +00:00
i915_sw_fence.h drm/i915/gem: Don't leak non-persistent requests on changing engines 2020-02-11 21:58:39 +00:00
i915_switcheroo.c drm/i915/switcheroo: use struct drm_device based logging 2020-04-08 13:49:35 +03:00
i915_switcheroo.h
i915_syncmap.c
i915_syncmap.h
i915_sysfs.c drm/i915/gt: Expose engine properties via sysfs 2020-02-28 22:03:19 +00:00
i915_sysfs.h
i915_trace_points.c
i915_trace.h
i915_user_extensions.c
i915_user_extensions.h
i915_utils.c drm/i915: Avoid setting timer->expires to 0 2020-04-03 16:33:09 +01:00
i915_utils.h drm/i915: be more solid in checking the alignment 2020-03-11 23:12:39 +02:00
i915_vgpu.c drm/i915/vgpu: improve vgpu abstractions 2020-03-03 17:46:54 +02:00
i915_vgpu.h drm/i915/vgpu: improve vgpu abstractions 2020-03-03 17:46:54 +02:00
i915_vma_types.h drm/i915/gem: Extract transient execbuf flags from i915_vma 2020-03-03 21:52:51 +00:00
i915_vma.c drm/i915: Make exclusive awaits on i915_active optional 2020-04-06 19:48:05 +01:00
i915_vma.h drm/i915/gt: Make fence revocation unequivocal 2020-04-01 23:34:17 +01:00
intel_device_info.c drm/i915: Refactor setting dma info to a common helper 2020-04-18 07:49:11 +01:00
intel_device_info.h drm/i915: Refactor setting dma info to a common helper 2020-04-18 07:49:11 +01:00
intel_dram.c drm/i915/dram: prefer struct drm_device based logging 2020-04-08 13:49:35 +03:00
intel_dram.h drm/i915: split out intel_dram.[ch] from i915_drv.c 2020-02-27 09:16:01 +02:00
intel_gvt.c drm/i915/gvt: make intel_gvt_active internal to intel_gvt 2020-03-03 17:47:03 +02:00
intel_gvt.h
intel_memory_region.c
intel_memory_region.h
intel_pch.c
intel_pch.h
intel_pm.c drm/i915: drop a bunch of superfluous inlines 2020-04-21 09:31:37 +03:00
intel_pm.h drm/i915: Add pre/post plane updates for SAGV 2020-04-17 20:41:00 +03:00
intel_region_lmem.c
intel_region_lmem.h
intel_runtime_pm.c
intel_runtime_pm.h
intel_sideband.c drm/i915: drop a bunch of superfluous inlines 2020-04-21 09:31:37 +03:00
intel_sideband.h
intel_uncore.c drm/i915/icl: Update forcewake firmware ranges 2020-04-17 19:35:43 +01:00
intel_uncore.h drm/i915/selftests: Measure the energy consumed while in RC6 2020-03-25 11:33:05 +00:00
intel_wakeref.c drm/i915: Extend intel_wakeref to support delayed puts 2020-03-23 12:51:05 +00:00
intel_wakeref.h drm/i915: Extend intel_wakeref to support delayed puts 2020-03-23 12:51:05 +00:00
intel_wopcm.c drm/i915: drop a bunch of superfluous inlines 2020-04-21 09:31:37 +03:00
intel_wopcm.h
Kconfig drm/i915: Update drm/i915 bug filing URL 2020-02-17 21:16:45 +02:00
Kconfig.debug
Kconfig.profile drm/i915/gen12: Disable preemption timeout 2020-03-12 13:46:01 +00:00
Kconfig.unstable
Makefile drm/i915/selftests: Move gpu energy measurement into its own little lib 2020-04-17 18:48:51 +01:00
vlv_suspend.c drm/i915: switch vlv_suspend to use intel uncore register accessors 2020-02-17 11:29:51 +02:00
vlv_suspend.h drm/i915: split out vlv/chv specific suspend/resume code 2020-02-17 11:29:35 +02:00