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fd50fbb6bf
linux/drivers/gpu/drm
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Joonas Lahtinen fd50fbb6bf drm/i915: Disable THP until we have a GPU read BW W/A 
We seem to be missing some W/A for 2M pages and are getting
a hit on raw GPU read bandwidths (even 30%) even though the
GPU write bandwidths improve (even 10%).

For now, disable THP, which is our only practical source of
2M pages until we have a W/A for the issue.

v2:
- Be explicit that we talk about GPU bandwidths (Eero)
- s/deny/never/ because that's why (Chris)

Reported-by: Valtteri Rantala <valtteri.rantala@intel.com>
Fixes: b901bb8932 ("drm/i915/gemfs: enable THP")
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Valtteri Rantala <valtteri.rantala@intel.com>
Cc: Eero Tamminen <eero.t.tamminen@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Tested-by: Valtteri Rantala <valtteri.rantala@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171127091233.7001-1-joonas.lahtinen@linux.intel.com
(cherry picked from commit 9987da4b5d)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2017-11-30 10:11:49 +02:00
..
amd Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-25 08:37:16 -10:00
arc
arm main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
armada main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
ast main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
atmel-hlcdc main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
bochs main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
bridge main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
cirrus drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
etnaviv main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
exynos treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
fsl-dcu fixes/cleanups for rc1, non-desktop flags for VR 2017-11-23 21:04:56 -10:00
gma500 main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
hisilicon drm/hisilicon: Ensure LDI regs are properly configured. 2017-11-01 10:36:50 +08:00
i2c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
i810
i915 drm/i915: Disable THP until we have a GPU read BW W/A 2017-11-30 10:11:49 +02:00
imx fixes/cleanups for rc1, non-desktop flags for VR 2017-11-23 21:04:56 -10:00
lib License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mediatek main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
meson drm/meson: Use drm_gem_fb_create() 2017-10-01 17:01:39 +02:00
mga
mgag200 main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
msm treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
mxsfb drm/mxsfb: Use drm_gem_fb_create() and drm_gem_fb_prepare_fb() 2017-10-01 17:02:20 +02:00
nouveau main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
omapdrm treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
panel main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
pl111 main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
qxl qxl: alloc & use shadow for dumb buffers 2017-10-23 08:23:11 +02:00
r128 r128: switch compat ioctls to drm_ioctl_kernel() 2017-09-29 13:42:35 -04:00
radeon fixes/cleanups for rc1, non-desktop flags for VR 2017-11-23 21:04:56 -10:00
rcar-du main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
rockchip treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
savage
selftests License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
shmobile main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
sis
sti main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
stm drm/stm: ltdc: remove bridge from driver internal structure 2017-10-10 11:32:48 +02:00
sun4i main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
tdfx
tegra fixes/cleanups for rc1, non-desktop flags for VR 2017-11-23 21:04:56 -10:00
tilcdc fixes/cleanups for rc1, non-desktop flags for VR 2017-11-23 21:04:56 -10:00
tinydrm drm/tinydrm: Remove explicit .best_encoder assignment 2017-10-13 17:34:51 +02:00
ttm main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
tve200 drm/tve200: Use drm_gem_fb_create() and drm_gem_fb_prepare_fb() 2017-10-01 17:04:36 +02:00
udl Merge tag 'drm-misc-next-2017-10-20' of git://anongit.freedesktop.org/drm/drm-misc into drm-next 2017-10-24 16:51:05 +10:00
vc4 drm/vc4: Convert timers to use timer_setup() 2017-11-21 15:46:44 -08:00
vgem treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
via treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
virtio main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
vmwgfx main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
zte main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
ati_pcigart.c
drm_agpsupport.c
drm_atomic_helper.c Merge tag 'drm-misc-next-2017-10-20' of git://anongit.freedesktop.org/drm/drm-misc into drm-next 2017-10-24 16:51:05 +10:00
drm_atomic.c drm: Reorganize drm_pending_event to support future event types [v2] 2017-10-21 07:23:40 +10:00
drm_auth.c drm: Check mode object lease status in all master ioctl paths [v4] 2017-10-25 16:31:30 +10:00
drm_blend.c
drm_bridge.c
drm_bufs.c
drm_cache.c
drm_color_mgmt.c drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
drm_connector.c drm: add connector info/property for non-desktop displays [v2] 2017-11-23 12:45:25 +10:00
drm_context.c
drm_crtc_helper_internal.h
drm_crtc_helper.c drm: Replace kzalloc with kcalloc 2017-10-13 15:49:03 -04:00
drm_crtc_internal.h drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
drm_crtc.c drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
drm_debugfs_crc.c
drm_debugfs.c
drm_dma.c
drm_dp_aux_dev.c Pass mode to wait_on_atomic_t() action funcs and provide default actions 2017-11-13 15:38:16 +00:00
drm_dp_dual_mode_helper.c drm: Add retries for lspcon mode detection 2017-10-13 12:13:54 +03:00
drm_dp_helper.c drm/dp: WARN about invalid/unknown link rates and bw codes 2017-10-11 18:41:44 +03:00
drm_dp_mst_topology.c
drm_drv.c drm: Add new LEASE debug level 2017-10-25 16:31:29 +10:00
drm_dumb_buffers.c
drm_edid_load.c
drm_edid.c drm/edid: quirk HTC vive headset as non-desktop. [v2] 2017-11-23 12:45:31 +10:00
drm_encoder_slave.c
drm_encoder.c drm: Check mode object lease status in all master ioctl paths [v4] 2017-10-25 16:31:30 +10:00
drm_fb_cma_helper.c drm/fb-cma-helper: Remove unused functions 2017-10-01 17:05:39 +02:00
drm_fb_helper.c drm/fb: add support for not enabling fbcon on non-desktop displays [v2] 2017-11-23 12:45:30 +10:00
drm_file.c
drm_flip_work.c
drm_fourcc.c
drm_framebuffer.c drm/mode_object: fix documentation for object lookups. 2017-11-10 13:50:47 +10:00
drm_gem_cma_helper.c drm/gem-cma-helper: Change the level of the allocation failure message 2017-10-16 15:19:57 +02:00
drm_gem_framebuffer_helper.c drm/gem-fb-helper: Improve documentation 2017-10-08 15:02:51 +02:00
drm_gem.c drm: fix typo in drm_gem_get_pages() comment 2017-10-04 18:04:28 +02:00
drm_global.c
drm_hashtab.c
drm_info.c
drm_internal.h drm: Add CRTC_GET_SEQUENCE and CRTC_QUEUE_SEQUENCE ioctls [v3] 2017-10-23 11:15:03 +10:00
drm_ioc32.c
drm_ioctl.c drm: Add four ioctls for managing drm mode object leases [v7] 2017-10-25 16:31:30 +10:00
drm_irq.c
drm_kms_helper_common.c
drm_lease.c drm: Add four ioctls for managing drm mode object leases [v7] 2017-10-25 16:31:30 +10:00
drm_legacy.h
drm_lock.c
drm_memory.c
drm_mipi_dsi.c
drm_mm.c
drm_mode_config.c drm: Check mode object lease status in all master ioctl paths [v4] 2017-10-25 16:31:30 +10:00
drm_mode_object.c drm/mode_object: fix documentation for object lookups. 2017-11-10 13:50:47 +10:00
drm_modes.c
drm_modeset_helper.c
drm_modeset_lock.c drm: Require __GFP_NOFAIL for the legacy drm_modeset_lock_all 2017-10-31 17:36:46 +01:00
drm_of.c drm/drm_of: Move drm_of_panel_bridge_remove_function into header. 2017-10-13 16:59:36 +02:00
drm_panel.c
drm_pci.c drm/core: clean up references to drm_dev_unref() 2017-09-27 10:53:12 +02:00
drm_plane_helper.c drm: Replace kzalloc with kcalloc 2017-10-13 15:49:03 -04:00
drm_plane.c drm: Check mode object lease status in all master ioctl paths [v4] 2017-10-25 16:31:30 +10:00
drm_prime.c drm/core: clean up references to drm_dev_unref() 2017-09-27 10:53:12 +02:00
drm_print.c
drm_probe_helper.c drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
drm_property.c drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
drm_rect.c
drm_scatter.c
drm_scdc_helper.c Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-09-28 05:46:15 +10:00
drm_simple_kms_helper.c
drm_syncobj.c Merge tag 'drm-misc-next-2017-10-16' of git://anongit.freedesktop.org/drm/drm-misc into drm-next 2017-10-17 10:10:17 +10:00
drm_sysfs.c
drm_trace_points.c
drm_trace.h main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
drm_vblank.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
drm_vm.c
drm_vma_manager.c
Kconfig Merge branch 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux into drm-next 2017-09-28 08:37:02 +10:00
Makefile main drm pull request for v4.15 2017-11-15 20:42:10 -08:00