AuxXxilium/linux_dsm_epyc7002
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717065907f
linux_dsm_epyc7002/drivers/gpu/drm
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Akash Goel 717065907f drm/i915: Use SSE4.1 movntdqa based memcpy for sampling GuC log buffer 
To ensure that we always get the up-to-date data from log buffer, its
better to access the buffer through an uncached CPU mapping. Also the way
buffer is accessed from GuC & Host side, manually doing cache flush may
not be effective always if cached CPU mapping is used. In order to avoid
any performance drop & have fast reads from the GuC log buffer, used SSE4.1
movntdqa based memcpy function i915_memcpy_from_wc, as copying using
movntqda from WC type memory is almost as fast as reading from WB memory.
This way log buffer sampling time will not get increased and so would be
able to deal with the flush interrupt storm when GuC is generating logs at
a very high rate.
Ideally SSE 4.1 should be present on all chipsets supporting GuC based
submisssions, but if not then logging will not be enabled.

v2: Rebase.

v3: Squash the WC type vmalloc mapping patch with this patch. (Chris)

Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Akash Goel <akash.goel@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
2016-10-25 09:34:23 +01:00
..
amd Merge tag 'topic/drm-misc-2016-10-24' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-10-25 16:35:20 +10:00
arc drm: Don't swallow error codes in drm_dev_alloc() 2016-09-22 04:03:48 -07:00
arm drm/arm: Use per-plane rotation property 2016-10-21 18:24:04 +02:00
armada Merge branch 'drm-armada-fixes' of git://git.armlinux.org.uk/~rmk/linux-arm into drm-fixes 2016-10-21 13:26:15 +10:00
ast drm: use drm_file to tag vm-bos 2016-09-19 11:22:08 +02:00
atmel-hlcdc drm/atmel-hlcdc: Use per-plane rotation property 2016-10-21 18:24:09 +02:00
bochs bugfixes for qemu (bochs, qxl and virtio-gpu) drm drivers 2016-09-28 13:23:07 +10:00
bridge drm/bridge: Drop drm_connector_unregister and call drm_connector_cleanup directly 2016-10-10 11:19:42 +02:00
cirrus drm: cirrus: Replace drm_fb_get_bpp_depth() with drm_format_plane_cpp() 2016-10-18 15:22:06 +05:30
etnaviv Merge tag 'topic/drm-misc-2016-10-24' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-10-25 16:35:20 +10:00
exynos Merge tag 'topic/drm-misc-2016-10-24' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-10-25 16:35:20 +10:00
fsl-dcu drm/fsl-dcu: enable pixel clock when enabling CRTC 2016-10-19 17:03:02 -07:00
gma500 drm: gma500: Replace drm_fb_get_bpp_depth() with drm_format_info() 2016-10-18 15:22:38 +05:30
hisilicon drm: Don't swallow error codes in drm_dev_alloc() 2016-09-22 04:03:48 -07:00
i2c Revert "drm/i2c: tda998x: don't register the connector" 2016-09-23 03:29:50 -07:00
i810
i915 drm/i915: Use SSE4.1 movntdqa based memcpy for sampling GuC log buffer 2016-10-25 09:34:23 +01:00
imx Linux 4.8-rc8 2016-09-28 12:08:49 +10:00
mediatek drm: Add reference counting to drm_atomic_state 2016-10-17 08:19:57 +02:00
mga
mgag200 drm: use drm_file to tag vm-bos 2016-09-19 11:22:08 +02:00
msm Merge tag 'topic/drm-misc-2016-10-24' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-10-25 16:35:20 +10:00
nouveau Merge tag 'topic/drm-misc-2016-10-24' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-10-25 16:35:20 +10:00
omapdrm drm/omap: Use per-plane rotation property 2016-10-21 18:25:47 +02:00
panel drm/panel: Add JDI LT070ME05000 WUXGA DSI Panel 2016-09-16 17:32:48 +02:00
qxl bugfixes for qemu (bochs, qxl and virtio-gpu) drm drivers 2016-09-28 13:23:07 +10:00
r128
radeon Merge tag 'topic/drm-misc-2016-10-24' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-10-25 16:35:20 +10:00
rcar-du drm: Add reference counting to drm_atomic_state 2016-10-17 08:19:57 +02:00
rockchip gpu: Remove depends on RESET_CONTROLLER when not a provider 2016-10-19 09:26:15 +02:00
savage drm/savage: dereferencing an error pointer 2016-10-13 07:56:14 +02:00
shmobile
sis
sti drm: Add reference counting to drm_atomic_state 2016-10-17 08:19:57 +02:00
sun4i Allwinner sun4i DRM fixes for 4.9 2016-09-28 11:23:15 +10:00
tdfx
tegra gpu: Remove depends on RESET_CONTROLLER when not a provider 2016-10-19 09:26:15 +02:00
tilcdc drm: tilcdc: Replace drm_fb_get_bpp_depth() with drm_format_plane_cpp() 2016-10-18 15:21:57 +05:30
ttm drm/ttm: remove cpu_address member from ttm_tt 2016-09-16 15:53:05 -04:00
udl Merge tag 'drm-for-v4.9' of git://people.freedesktop.org/~airlied/linux 2016-10-11 18:12:22 -07:00
vc4 Merge tag 'topic/drm-misc-2016-10-24' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-10-25 16:35:20 +10:00
vgem drm: Don't swallow error codes in drm_dev_alloc() 2016-09-22 04:03:48 -07:00
via mm: replace get_user_pages() write/force parameters with gup_flags 2016-10-19 08:11:43 -07:00
virtio drm/virtio: kconfig: Fixup white space. 2016-10-21 10:49:06 -04:00
vmwgfx Merge tag 'topic/drm-misc-2016-10-24' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-10-25 16:35:20 +10:00
ati_pcigart.c
drm_agpsupport.c
drm_atomic_helper.c drm: Add drm_rotation_90_or_270() 2016-10-21 18:21:33 +02:00
drm_atomic.c drm: Add support for optional per-plane rotation property 2016-10-21 18:23:50 +02:00
drm_auth.c
drm_blend.c drm: Add support for optional per-plane rotation property 2016-10-21 18:23:50 +02:00
drm_bridge.c drm: Extract drm_bridge.h 2016-09-19 15:04:15 +02:00
drm_bufs.c GPU-DRM: Replace a kzalloc() call by kcalloc() in drm_legacy_addbufs_sg() 2016-09-21 13:24:27 +02:00
drm_cache.c
drm_color_mgmt.c drm/doc: Document color space handling 2016-09-22 00:04:03 -07:00
drm_connector.c drm: Release resources with a safer function 2016-10-10 11:20:48 +02:00
drm_context.c
drm_crtc_helper_internal.h drm/fb-helper: Fix sparse warnings 2016-09-19 16:45:15 +02:00
drm_crtc_helper.c
drm_crtc_internal.h drm: Extract drm_color_mgmt.[hc] 2016-09-22 00:04:02 -07:00
drm_crtc.c drm: Add drm_rotation_90_or_270() 2016-10-21 18:21:33 +02:00
drm_debugfs_crc.c drm: fix sparse warnings on undeclared symbols in crc debugfs 2016-10-19 14:10:29 +03:00
drm_debugfs.c Merge tag 'topic/drm-misc-2016-10-24' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-10-25 16:35:20 +10:00
drm_dma.c
drm_dp_aux_dev.c drm: Don't export dp-aux devnode functions 2016-08-16 18:49:26 +02:00
drm_dp_dual_mode_helper.c drm: Fix LSPCON kernel-doc 2016-10-19 18:20:40 +03:00
drm_dp_helper.c Merge tag 'drm-for-v4.9' of git://people.freedesktop.org/~airlied/linux 2016-10-11 18:12:22 -07:00
drm_dp_mst_topology.c
drm_drv.c drm: Simplify drm_printk to reduce object size quite a bit 2016-10-04 08:23:14 +02:00
drm_edid_load.c
drm_edid.c drm/edid: Use block local to refer to the block 2016-10-17 14:28:06 +02:00
drm_encoder_slave.c
drm_encoder.c drm: Fix typo in encoder docs 2016-09-21 13:33:50 +02:00
drm_fb_cma_helper.c drm/fb_cma_helper: do not free fbdev if there is none 2016-10-20 09:05:34 +02:00
drm_fb_helper.c drm: Add support for optional per-plane rotation property 2016-10-21 18:23:50 +02:00
drm_flip_work.c
drm_fops.c drm/fence: release fence reference when canceling event 2016-10-21 15:35:07 +02:00
drm_fourcc.c drm: Don't export the drm_fb_get_bpp_depth() function 2016-10-18 15:24:08 +05:30
drm_framebuffer.c drm: WARN when calling drm_format_info() for an unsupported format 2016-10-18 15:21:38 +05:30
drm_gem_cma_helper.c
drm_gem.c drm: use drm_file to tag vm-bos 2016-09-19 11:22:08 +02:00
drm_global.c drm: modify drm_global_item_ref to avoid two times of writing ref->object 2016-09-14 15:10:29 -04:00
drm_hashtab.c drm: fix signed integer overflow 2016-09-06 13:56:41 -04:00
drm_info.c drm: Print device information again in debugfs 2016-10-17 16:20:53 +10:00
drm_internal.h drm: Add API for capturing frame CRCs 2016-10-17 16:44:34 +02:00
drm_ioc32.c drm: drop obsolete drm_core.h 2016-09-19 13:57:38 +02:00
drm_ioctl.c drm: drop obsolete drm_core.h 2016-09-19 13:57:38 +02:00
drm_irq.c drm: avoid uninitialized timestamp use in wait_vblank 2016-10-18 09:45:17 +02:00
drm_kms_helper_common.c drm: Don't export dp-aux devnode functions 2016-08-16 18:49:26 +02:00
drm_legacy.h
drm_lock.c
drm_memory.c
drm_mipi_dsi.c drm/dsi: Implement DCS set/get display brightness 2016-08-24 13:34:00 +02:00
drm_mm.c
drm_mode_object.c drm: Move property validation to a helper, v2. 2016-09-12 10:32:49 -04:00
drm_modes.c drm: Use u64 for intermediate dotclock calculations 2016-10-21 20:23:16 +02:00
drm_modeset_helper.c drm: Don't export the drm_fb_get_bpp_depth() function 2016-10-18 15:24:08 +05:30
drm_modeset_lock.c
drm_of.c
drm_panel.c
drm_pci.c drm: Don't swallow error codes in drm_dev_alloc() 2016-09-22 04:03:48 -07:00
drm_plane_helper.c drm: Fix kerneldoc in drm_plane_helper.c 2016-08-16 18:50:04 +02:00
drm_plane.c drm: Undo damage to page_flip_ioctl 2016-10-04 12:53:12 +10:00
drm_platform.c drm: Don't swallow error codes in drm_dev_alloc() 2016-09-22 04:03:48 -07:00
drm_prime.c drm: Fix up kerneldoc for new drm_gem_dmabuf_export() 2016-10-10 11:19:42 +02:00
drm_probe_helper.c drm: drm_probe_helper: Fix output_poll_work scheduling 2016-08-31 13:23:30 +02:00
drm_property.c Revert "drm: Unify handling of blob and object properties" 2016-09-07 13:24:22 +03:00
drm_rect.c
drm_scatter.c
drm_simple_kms_helper.c drm: simple_kms_helper: Add prepare_fb and cleanup_fb hooks 2016-10-05 15:18:02 +02:00
drm_sysfs.c drm: drop obsolete drm_core.h 2016-09-19 13:57:38 +02:00
drm_trace_points.c
drm_trace.h
drm_vm.c
drm_vma_manager.c drm: use drm_file to tag vm-bos 2016-09-19 11:22:08 +02:00
Kconfig Revert "drm: make DRI1 drivers depend on BROKEN" 2016-09-01 06:16:12 +10:00
Makefile drm: Add API for capturing frame CRCs 2016-10-17 16:44:34 +02:00