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b18c1bb48e
linux_dsm_epyc7002/drivers/gpu/drm
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Chris Wilson b18c1bb48e drm/i915: Remove 64b mmio write vfuncs 
We don't have safe 64-bit mmio writes as they are really split into
2x32-bit writes. This tearing is dangerous as the hardware *will*
operate on the intermediate value, requiring great care when assigning.
(See, for example, i965_write_fence_reg.) As such we don't currently use
them and strongly advise not to us them. Go one step further and remove
the 64-bit write vfuncs.

v2: Add some more details to the comment about why WRITE64 is absent,
and why you need to think twice before using READ64.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160906144538.4204-1-chris@chris-wilson.co.uk
2016-09-06 17:51:01 +01:00
..
amd Merge tag 'topic/drm-misc-2016-08-12' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-08-15 16:46:36 +10:00
arc drm/arc: Remove redundant dev_err call in arcpgu_load() 2016-07-19 15:33:50 -04:00
arm drm: BIT(DRM_ROTATE_?) -> DRM_ROTATE_? 2016-08-08 14:17:56 -04:00
armada drm: Remove superflous linux/fb.h includes 2016-08-12 10:41:39 +02:00
ast drm: Remove superflous linux/fb.h includes 2016-08-12 10:41:39 +02:00
atmel-hlcdc drm: BIT(DRM_ROTATE_?) -> DRM_ROTATE_? 2016-08-08 14:17:56 -04:00
bochs drm: Remove superflous linux/fb.h includes 2016-08-12 10:41:39 +02:00
bridge drm: Remove superflous linux/fb.h includes 2016-08-12 10:41:39 +02:00
cirrus Merge tag 'topic/drm-misc-2016-08-12' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-08-15 16:46:36 +10:00
etnaviv Merge tag 'drm-for-v4.8' of git://people.freedesktop.org/~airlied/linux 2016-08-01 21:44:08 -04:00
exynos Merge tag 'drm-for-v4.8-zpos' of git://people.freedesktop.org/~airlied/linux 2016-08-07 16:35:08 -07:00
fsl-dcu Merge tag 'topic/drm-misc-2016-07-22' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-07-27 10:33:08 +10:00
gma500 drm: Remove superflous linux/fb.h includes 2016-08-12 10:41:39 +02:00
hisilicon
i2c
i810 drm: Mark up legacy/dri1 drivers with DRM_LEGACY 2016-08-08 10:05:22 +02:00
i915 drm/i915: Remove 64b mmio write vfuncs 2016-09-06 17:51:01 +01:00
imx Merge tag 'topic/drm-misc-2016-08-12' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-08-15 16:46:36 +10:00
mediatek Merge tag 'topic/drm-misc-2016-08-12' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-08-15 16:46:36 +10:00
mga drm: Mark up legacy/dri1 drivers with DRM_LEGACY 2016-08-08 10:05:22 +02:00
mgag200 drm: Remove superflous linux/fb.h includes 2016-08-12 10:41:39 +02:00
msm drm: BIT(DRM_ROTATE_?) -> DRM_ROTATE_? 2016-08-08 14:17:56 -04:00
nouveau Merge tag 'topic/drm-misc-2016-08-12' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-08-15 16:46:36 +10:00
omapdrm Revert "gpu: drm: omapdrm: dss-of: add missing of_node_put after calling of_parse_phandle" 2016-08-12 07:10:37 -04:00
panel
qxl drm: Protect fb_defio in drivers with CONFIG_KMS_FBDEV_EMULATION 2016-08-12 10:42:00 +02:00
r128 drm: Mark up legacy/dri1 drivers with DRM_LEGACY 2016-08-08 10:05:22 +02:00
radeon Merge tag 'topic/drm-misc-2016-08-12' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-08-15 16:46:36 +10:00
rcar-du drm: rcar-du: Link HDMI encoder with bridge 2016-08-08 15:27:11 +10:00
rockchip drm/rockchip: Use drm_plane_helper_check_state() 2016-08-08 14:19:57 -04:00
savage drm: Mark up legacy/dri1 drivers with DRM_LEGACY 2016-08-08 10:05:22 +02:00
shmobile drm/shmobile: make fbdev support really optional 2016-07-18 09:11:37 +02:00
sis drm: Mark up legacy/dri1 drivers with DRM_LEGACY 2016-08-08 10:05:22 +02:00
sti Merge branch 'generic-zpos-v8' of http://git.linaro.org/people/benjamin.gaignard/kernel into drm-next 2016-08-03 08:40:24 +10:00
sun4i drm/fb-helper: Add a dummy remove_conflicting_framebuffers 2016-08-12 10:41:18 +02:00
tdfx drm: Mark up legacy/dri1 drivers with DRM_LEGACY 2016-08-08 10:05:22 +02:00
tegra Merge remote-tracking branch 'airlied/drm-next' into topic/drm-misc 2016-07-19 09:27:29 +02:00
tilcdc drm/tilcdc: Change tilcdc_crtc_page_flip() to tilcdc_crtc_update_fb() 2016-08-08 23:05:19 +03:00
ttm Merge branch 'drm-next-4.8' of git://people.freedesktop.org/~agd5f/linux into drm-next 2016-08-08 16:45:33 +10:00
udl drm: Protect fb_defio in drivers with CONFIG_KMS_FBDEV_EMULATION 2016-08-12 10:42:00 +02:00
vc4 drm/fb-helper: Add a dummy remove_conflicting_framebuffers 2016-08-12 10:41:18 +02:00
vgem drm/vgem: Fix non static symbol warning 2016-07-19 15:01:52 +02:00
via drm: Mark up legacy/dri1 drivers with DRM_LEGACY 2016-08-08 10:05:22 +02:00
virtio drm/fb-helper: Add a dummy remove_conflicting_framebuffers 2016-08-12 10:41:18 +02:00
vmwgfx drm/vmwgfx: select CONFIG_FB 2016-08-12 10:41:46 +02:00
ati_pcigart.c
drm_agpsupport.c drm: Used DRM_LEGACY for all legacy functions 2016-08-08 10:05:23 +02:00
drm_atomic_helper.c Merge tag 'topic/drm-misc-2016-08-12' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-08-15 16:46:36 +10:00
drm_atomic.c drm: add generic zpos property 2016-07-29 09:59:30 +02:00
drm_auth.c drm: Used DRM_LEGACY for all legacy functions 2016-08-08 10:05:23 +02:00
drm_blend.c drm: add generic zpos property 2016-07-29 09:59:30 +02:00
drm_bridge.c
drm_bufs.c drm: Used DRM_LEGACY for all legacy functions 2016-08-08 10:05:23 +02:00
drm_cache.c
drm_context.c drm: Used DRM_LEGACY for all legacy functions 2016-08-08 10:05:23 +02:00
drm_crtc_helper.c
drm_crtc_internal.h drm: add generic zpos property 2016-07-29 09:59:30 +02:00
drm_crtc.c Merge tag 'topic/drm-misc-2016-08-12' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-08-15 16:46:36 +10:00
drm_debugfs.c
drm_dma.c drm: Used DRM_LEGACY for all legacy functions 2016-08-08 10:05:23 +02:00
drm_dp_aux_dev.c
drm_dp_dual_mode_helper.c
drm_dp_helper.c drm/dp_helper: Rate limit timeout errors from drm_dp_i2c_do_msg() 2016-08-09 18:23:44 +02:00
drm_dp_mst_topology.c drm/dp-mst: Missing kernel doc 2016-07-19 10:31:53 +02:00
drm_drv.c drm: rename DRM_MINOR_LEGACY to DRM_MINOR_PRIMARY 2016-08-08 10:05:20 +02:00
drm_edid_load.c
drm_edid.c drm/edid: Set 8 bpc color depth for displays with "DFP 1.x compliant TMDS". 2016-08-09 08:56:04 +10:00
drm_encoder_slave.c
drm_fb_cma_helper.c
drm_fb_helper.c drm: Remove superflous linux/fb.h includes 2016-08-12 10:41:39 +02:00
drm_flip_work.c
drm_fops.c drm: Used DRM_LEGACY for all legacy functions 2016-08-08 10:05:23 +02:00
drm_fourcc.c
drm_gem_cma_helper.c
drm_gem.c Merge tag 'drm-for-v4.8' of git://people.freedesktop.org/~airlied/linux 2016-08-01 21:44:08 -04:00
drm_global.c
drm_hashtab.c
drm_info.c
drm_internal.h
drm_ioc32.c
drm_ioctl.c drm: Used DRM_LEGACY for all legacy functions 2016-08-08 10:05:23 +02:00
drm_irq.c drm: Make sure drm_vblank_no_hw_counter isn't abused 2016-08-08 14:34:05 -04:00
drm_kms_helper_common.c
drm_legacy.h
drm_lock.c drm: Used DRM_LEGACY for all legacy functions 2016-08-08 10:05:23 +02:00
drm_memory.c
drm_mipi_dsi.c
drm_mm.c drm: Declare that create drm_mm nodes with size 0 is illegal 2016-08-08 10:05:21 +02:00
drm_modes.c drm/imx: convey the pixelclk-active and de-active flags from DT to the ipu-di driver 2016-08-08 11:44:20 +02:00
drm_modeset_lock.c
drm_of.c
drm_panel.c
drm_pci.c drm: Used DRM_LEGACY for all legacy functions 2016-08-08 10:05:23 +02:00
drm_plane_helper.c drm/plane-helper: Add drm_plane_helper_check_state() 2016-08-08 14:19:45 -04:00
drm_platform.c
drm_prime.c
drm_probe_helper.c
drm_rect.c drm: Warn about negative sizes when calculating scale factor 2016-08-08 14:17:56 -04:00
drm_scatter.c drm: Used DRM_LEGACY for all legacy functions 2016-08-08 10:05:23 +02:00
drm_simple_kms_helper.c drm/simple_kms_helper: Use drm_plane_helper_check_state() 2016-08-08 14:19:58 -04:00
drm_sysfs.c
drm_trace_points.c
drm_trace.h
drm_vm.c
drm_vma_manager.c drm: Convert drm_vma_manager to embedded interval-tree in drm_mm 2016-08-08 10:05:17 +02:00
Kconfig drm/radeon|amgpu: Make fbdev emulation optional 2016-08-12 10:41:53 +02:00
Makefile drm/i915: Use remap_io_mapping() to prefault all PTE in a single pass 2016-08-19 17:13:36 +01:00