AuxXxilium/linux_dsm_epyc7002
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11abbc9f39
linux_dsm_epyc7002/drivers/gpu/drm
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Jyri Sarha 11abbc9f39 drm/tilcdc: Set framebuffer DMA address to HW only if CRTC is enabled 
Touching HW while clocks are off is a serious error and for instance
breaks suspend functionality. After this patch tilcdc_crtc_update_fb()
always updates the primary plane's framebuffer pointer, increases fb's
reference count and stores vblank event. tilcdc_crtc_update_fb() only
writes the fb's DMA address to HW if the crtc is enabled, as
tilcdc_crtc_enable() takes care of writing the address on enable.

This patch also refactors the tilcdc_crtc_update_fb() a bit. Number of
subsequent small changes had made it almost unreadable. There should
be no other functional changes but checking the CRTC's enable
state. However, the locking goes a bit differently and some of the
redundant checks have been removed in this new version.

The enable_lock should be enough to protect the access to
tilcdc_crtc->enabled. The irq_lock protects the access to last_vblank
and next_fb. The check for vrefresh and last_vblank being valid is
redundant, as the vrefresh should be always valid if the CRTC is
enabled and now last_vblank should be too, because it is initialized
to current time when CRTC raster is enabled. If for some reason the
values are not correctly initialized the division by zero warning is
quite appropriate.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-03-14 14:28:58 +02:00
..
amd drm/amdgpu: bump driver version for some new features 2017-03-09 16:35:16 -05:00
arc drm: Rely on mode_config data for fb_helper initialization 2017-02-02 19:12:00 +01:00
arm drm: Rely on mode_config data for fb_helper initialization 2017-02-02 19:12:00 +01:00
armada mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf 2017-02-24 17:46:54 -08:00
ast drm/ast: Call open_key before enable_mmio in POST code 2017-02-28 13:25:32 +10:00
atmel-hlcdc drm: Rely on mode_config data for fb_helper initialization 2017-02-02 19:12:00 +01:00
bochs drm: Rely on mode_config data for fb_helper initialization 2017-02-02 19:12:00 +01:00
bridge drm/bridge/sii8620: enable interlace modes 2017-02-02 15:15:31 +05:30
cirrus drm: Rely on mode_config data for fb_helper initialization 2017-02-02 19:12:00 +01:00
etnaviv sched/headers: Prepare to move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h> 2017-03-02 08:42:40 +01:00
exynos mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf 2017-02-24 17:46:54 -08:00
fsl-dcu drm/fsl-dcu: check for clk_prepare_enable() error 2017-02-07 20:28:04 -08:00
gma500 mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf 2017-02-24 17:46:54 -08:00
hisilicon drm: Rely on mode_config data for fb_helper initialization 2017-02-02 19:12:00 +01:00
i2c
i810 drm/i810: drop device_is_agp callback 2017-01-26 10:44:43 +01:00
i915 Merge tag 'gvt-fixes-2017-03-08' of https://github.com/01org/gvt-linux into drm-intel-fixes 2017-03-08 12:21:54 +02:00
imx imx-drm: TVE regulator, fb size limit, and ipu-v3 module fixes 2017-02-23 12:10:42 +10:00
lib drm: Add a simple generator of random permutations 2016-12-27 12:34:00 +01:00
mediatek drm: mediatek: use crtc helper drm_crtc_from_index() 2017-01-18 09:21:06 -05:00
meson drm: Rely on mode_config data for fb_helper initialization 2017-02-02 19:12:00 +01:00
mga lib/vsprintf.c: remove %Z support 2017-02-27 18:43:47 -08:00
mgag200 drm: Rely on mode_config data for fb_helper initialization 2017-02-02 19:12:00 +01:00
msm mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf 2017-02-24 17:46:54 -08:00
mxsfb drm: mxsfb: Implement drm_panel handling 2017-03-10 11:11:14 +10:00
nouveau Less anger inducing pull request for 4.11 2017-02-23 18:58:18 -08:00
omapdrm sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
panel drm/panel: simple: Specify bus width and flags for EDT displays 2017-01-26 10:57:18 +01:00
qxl mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf 2017-02-24 17:46:54 -08:00
r128
radeon scripts/spelling.txt: add "aligment" pattern and fix typo instances 2017-02-27 18:43:46 -08:00
rcar-du drm: Rely on mode_config data for fb_helper initialization 2017-02-02 19:12:00 +01:00
rockchip Merge tag 'drm-misc-next-fixes-2017-02-27' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-02-28 12:28:00 +10:00
savage drm: Change the return type of the unload hook to void 2017-01-09 11:25:22 +01:00
selftests drm: kselftest for drm_mm and bottom-up allocation 2017-02-03 11:36:49 +01:00
shmobile drm: Change the return type of the unload hook to void 2017-01-09 11:25:22 +01:00
sis drm: Improve drm_mm search (and fix topdown allocation) with rbtrees 2017-02-03 11:10:32 +01:00
sti drm/sti: fix build warnings in sti_drv.c and sti_vtg.c files 2017-02-23 12:54:54 +10:00
sun4i drm: Rely on mode_config data for fb_helper initialization 2017-02-02 19:12:00 +01:00
tdfx
tegra mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf 2017-02-24 17:46:54 -08:00
tilcdc drm/tilcdc: Set framebuffer DMA address to HW only if CRTC is enabled 2017-03-14 14:28:58 +02:00
tinydrm Less anger inducing pull request for 4.11 2017-02-23 18:58:18 -08:00
ttm sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h> 2017-03-02 08:42:29 +01:00
udl mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf 2017-02-24 17:46:54 -08:00
vc4 sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
vgem Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-03-02 15:20:00 -08:00
via drm: Improve drm_mm search (and fix topdown allocation) with rbtrees 2017-02-03 11:10:32 +01:00
virtio virtio, vhost: optimizations, fixes 2017-03-02 13:53:13 -08:00
vmwgfx drm/vmwgfx: Work around drm removal of control nodes 2017-02-26 22:52:28 +01:00
zte drm: zte: fix static checker warning on variable 'fmt' 2017-02-23 08:54:15 +08:00
ati_pcigart.c
drm_agpsupport.c drm/i810: drop device_is_agp callback 2017-01-26 10:44:43 +01:00
drm_atomic_helper.c drm/atomic: fix an error code in mode_fixup() 2017-02-08 16:15:42 +01:00
drm_atomic.c Linux 4.10-rc8 2017-02-23 12:10:12 +10:00
drm_auth.c drm/core: Use recommened kerneldoc for struct member refs 2017-01-25 16:22:42 +01:00
drm_blend.c drm/kms-core: Use recommened kerneldoc for struct member refs 2017-01-25 16:30:34 +01:00
drm_bridge.c drm/bridge: Use recommened kerneldoc for struct member refs 2017-01-02 09:17:26 +01:00
drm_bufs.c
drm_cache.c drm: Update drm_cache.c to pull in the new drm_cache.h 2017-01-24 11:00:22 +01:00
drm_color_mgmt.c drm/color: un-inline drm_color_lut_extract() 2017-01-31 15:31:58 +02:00
drm_connector.c Linux 4.10-rc8 2017-02-23 12:10:12 +10:00
drm_context.c
drm_crtc_helper_internal.h
drm_crtc_helper.c drm/kms-helpers: Use recommened kerneldoc for struct member refs 2017-01-25 16:18:57 +01:00
drm_crtc_internal.h Revert "drm: Resurrect atomic rmfb code, v3" 2017-02-17 12:39:04 +10:00
drm_crtc.c drm: s/drm_crtc_get_hv_timings/drm_mode_get_hv_timings/ 2017-01-26 10:46:28 +01:00
drm_debugfs_crc.c drm: crc: Call wake_up_interruptible() each time there is a new CRC entry 2017-01-06 15:23:19 +01:00
drm_debugfs.c drm/atomic: Remove drm_atomic_debugfs_cleanup() 2017-01-27 09:02:03 +01:00
drm_dma.c
drm_dp_aux_dev.c
drm_dp_dual_mode_helper.c
drm_dp_helper.c drm/kms-helpers: Use recommened kerneldoc for struct member refs 2017-01-25 16:18:57 +01:00
drm_dp_mst_topology.c Less anger inducing pull request for 4.11 2017-02-23 18:58:18 -08:00
drm_drv.c Linux 4.10-rc8 2017-02-23 12:10:12 +10:00
drm_dumb_buffers.c drm/kms-core: Use recommened kerneldoc for struct member refs 2017-01-25 16:30:34 +01:00
drm_edid_load.c
drm_edid.c drm/edid: Add EDID_QUIRK_FORCE_8BPC quirk for Rotel RSX-1058 2017-03-06 08:28:10 +01:00
drm_encoder_slave.c drm/kms-core: Use recommened kerneldoc for struct member refs 2017-01-25 16:30:34 +01:00
drm_encoder.c drm/kms-core: Use recommened kerneldoc for struct member refs 2017-01-25 16:30:34 +01:00
drm_fb_cma_helper.c drm: Rely on mode_config data for fb_helper initialization 2017-02-02 19:12:00 +01:00
drm_fb_helper.c drm: Cancel drm_fb_helper_resume_work on unload 2017-02-08 16:15:42 +01:00
drm_flip_work.c
drm_fops.c drm/core: Use recommened kerneldoc for struct member refs 2017-01-25 16:22:42 +01:00
drm_fourcc.c
drm_framebuffer.c Revert "drm: Resurrect atomic rmfb code, v3" 2017-02-17 12:39:04 +10:00
drm_gem_cma_helper.c Less anger inducing pull request for 4.11 2017-02-23 18:58:18 -08:00
drm_gem.c drm/gem|prime|mm: Use recommened kerneldoc for struct member refs 2017-01-25 16:20:21 +01:00
drm_global.c drm: Update TTM initialization documentation 2016-12-30 12:52:10 +01:00
drm_hashtab.c
drm_info.c locking/atomic, kref: Add kref_read() 2017-01-14 11:37:18 +01:00
drm_internal.h drm: remove device_is_agp callback 2017-01-26 10:45:14 +01:00
drm_ioc32.c
drm_ioctl.c drm: Export drm_ioctl_permit to kernel-doc 2016-12-30 12:40:48 +01:00
drm_irq.c drm: Nuke ums vgaarb support 2017-01-26 10:45:31 +01:00
drm_kms_helper_common.c
drm_legacy.h drm: compile drm_vm.c only when needed 2017-01-06 11:03:07 +01:00
drm_lock.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h> 2017-03-02 08:42:29 +01:00
drm_memory.c
drm_mipi_dsi.c
drm_mm.c drm: Improve drm_mm search (and fix topdown allocation) with rbtrees 2017-02-03 11:10:32 +01:00
drm_mode_config.c drm: Show leaked connectors upon unload 2017-01-23 09:26:22 +01:00
drm_mode_object.c Less anger inducing pull request for 4.11 2017-02-23 18:58:18 -08:00
drm_modes.c drm: Clean up the 1366x768 fixup codes 2017-02-01 19:01:47 +02:00
drm_modeset_helper.c drm: Convert all helpers to drm_connector_list_iter 2016-12-18 14:33:22 +01:00
drm_modeset_lock.c drm/kms-core: Use recommened kerneldoc for struct member refs 2017-01-25 16:30:34 +01:00
drm_of.c drm: Don't include <drm/drm_encoder.h> in <drm/drm_crtc.h> 2016-12-18 16:29:29 +05:30
drm_panel.c drm/panel: Constify device node argument to of_drm_find_panel() 2017-01-04 08:30:37 +01:00
drm_pci.c drm: remove device_is_agp callback 2017-01-26 10:45:14 +01:00
drm_plane_helper.c drm/kms-helpers: Use recommened kerneldoc for struct member refs 2017-01-25 16:18:57 +01:00
drm_plane.c drm/kms-core: Use recommened kerneldoc for struct member refs 2017-01-25 16:30:34 +01:00
drm_platform.c drm/core: Use recommened kerneldoc for struct member refs 2017-01-25 16:22:42 +01:00
drm_prime.c drm/prime: Clarify DMA-BUF/GEM Object lifetime 2017-01-27 15:00:26 +01:00
drm_print.c drm/printer: add debug printer 2016-12-30 11:43:40 +01:00
drm_probe_helper.c scripts/spelling.txt: add "againt" pattern and fix typo instances 2017-02-27 18:43:47 -08:00
drm_property.c drm/kms-core: Use recommened kerneldoc for struct member refs 2017-01-25 16:30:34 +01:00
drm_rect.c drm/rect: Fix formatting of example code 2016-12-30 13:35:54 +01:00
drm_scatter.c
drm_simple_kms_helper.c drm/doc: use preferred struct reference in kernel-doc 2016-12-30 13:34:59 +01:00
drm_sysfs.c drm/core: Use recommened kerneldoc for struct member refs 2017-01-25 16:22:42 +01:00
drm_trace_points.c
drm_trace.h
drm_vm.c drm: remove unnecessary fault wrappers 2017-02-24 17:46:55 -08:00
drm_vma_manager.c drm: Improve drm_mm search (and fix topdown allocation) with rbtrees 2017-02-03 11:10:32 +01:00
Kconfig drm: Add DRM support for tiny LCD displays 2017-02-18 18:04:58 +01:00
Makefile drm: Add DRM support for tiny LCD displays 2017-02-18 18:04:58 +01:00