[Intel-gfx] [PATCH 0/7] drm/i915/perf: add OA interrupt support
Hi all, This is a revival of an earlier patch series submitted by Lionel Landwerlin - https://patchwork.freedesktop.org/series/54280/ The patches enable interrupt support for the perf OA unit in i915, further details can be found in the orignal series linked above. Regards, Umesh Lionel Landwerlin (7): drm/i915/perf: rework aging tail workaround drm/i915/perf: move pollin setup to non hw specific code drm/i915/perf: only append status when data is available drm/i915/perf: add new open param to configure polling of OA buffer drm/i915: handle interrupts from the OA unit drm/i915/perf: add interrupt enabling parameter drm/i915/perf: add flushing ioctl drivers/gpu/drm/i915/gt/intel_gt_irq.c| 29 +- drivers/gpu/drm/i915/gt/intel_gt_irq.h| 1 + drivers/gpu/drm/i915/gt/intel_gt_pm_irq.c | 34 +- .../gpu/drm/i915/gt/intel_ring_submission.c | 2 + drivers/gpu/drm/i915/i915_perf.c | 421 +++--- drivers/gpu/drm/i915/i915_perf_types.h| 54 ++- drivers/gpu/drm/i915/i915_reg.h | 9 + include/uapi/drm/i915_drm.h | 41 ++ 8 files changed, 401 insertions(+), 190 deletions(-) -- 2.20.1 ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
Re: [Intel-gfx] [PATCH 0/7] drm/i915/perf: add OA interrupt support
Any taker? -Lionel On 16/01/2019 15:36, Lionel Landwerlin wrote: Taking the RFC off this series. To quite the vTune team that tried the previous version : "It reduces data collection overhead in VTune by 11x. It is great!" The GPA team's report on the previous version was a drop in CPU consumption from 17~20% down to 2~3%. This version includes : - a fix for an issue reported by Chris on the IMR register access on Haswell - the ability to completely disable the i915 OA head/tail polling - a new ioctl on the perf stream file descript (not the i915 drm master/render node) to force i915 to look at the OA head/tail register (see explanation in last patch). Cheers, Lionel Landwerlin (7): drm/i915/perf: rework aging tail workaround drm/i915/perf: reset pollin when perf stream is enabled drm/i915/perf: only append status when data is available drm/i915/perf: add new open param to configure polling of OA buffer drm/i915: handle interrupts from the OA unit drm/i915/perf: add interrupt enabling parameter drm/i915/perf: add flushing ioctl drivers/gpu/drm/i915/i915_drv.h | 59 +++- drivers/gpu/drm/i915/i915_irq.c | 39 ++- drivers/gpu/drm/i915/i915_perf.c| 388 +++- drivers/gpu/drm/i915/i915_reg.h | 7 + drivers/gpu/drm/i915/intel_ringbuffer.c | 2 + include/uapi/drm/i915_drm.h | 35 +++ 6 files changed, 357 insertions(+), 173 deletions(-) -- 2.20.1 ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
[Intel-gfx] [PATCH 0/7] drm/i915/perf: add OA interrupt support
Taking the RFC off this series. To quite the vTune team that tried the previous version : "It reduces data collection overhead in VTune by 11x. It is great!" The GPA team's report on the previous version was a drop in CPU consumption from 17~20% down to 2~3%. This version includes : - a fix for an issue reported by Chris on the IMR register access on Haswell - the ability to completely disable the i915 OA head/tail polling - a new ioctl on the perf stream file descript (not the i915 drm master/render node) to force i915 to look at the OA head/tail register (see explanation in last patch). Cheers, Lionel Landwerlin (7): drm/i915/perf: rework aging tail workaround drm/i915/perf: reset pollin when perf stream is enabled drm/i915/perf: only append status when data is available drm/i915/perf: add new open param to configure polling of OA buffer drm/i915: handle interrupts from the OA unit drm/i915/perf: add interrupt enabling parameter drm/i915/perf: add flushing ioctl drivers/gpu/drm/i915/i915_drv.h | 59 +++- drivers/gpu/drm/i915/i915_irq.c | 39 ++- drivers/gpu/drm/i915/i915_perf.c| 388 +++- drivers/gpu/drm/i915/i915_reg.h | 7 + drivers/gpu/drm/i915/intel_ringbuffer.c | 2 + include/uapi/drm/i915_drm.h | 35 +++ 6 files changed, 357 insertions(+), 173 deletions(-) -- 2.20.1 ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
