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OpenCloudOS-Kernel/drivers/gpu/drm/i915/display
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Chris Wilson 2850748ef8 drm/i915: Pull i915_vma_pin under the vm->mutex 
Replace the struct_mutex requirement for pinning the i915_vma with the
local vm->mutex instead. Note that the vm->mutex is tainted by the
shrinker (we require unbinding from inside fs-reclaim) and so we cannot
allocate while holding that mutex. Instead we have to preallocate
workers to do allocate and apply the PTE updates after we have we
reserved their slot in the drm_mm (using fences to order the PTE writes
with the GPU work and with later unbind).

In adding the asynchronous vma binding, one subtle requirement is to
avoid coupling the binding fence into the backing object->resv. That is
the asynchronous binding only applies to the vma timeline itself and not
to the pages as that is a more global timeline (the binding of one vma
does not need to be ordered with another vma, nor does the implicit GEM
fencing depend on a vma, only on writes to the backing store). Keeping
the vma binding distinct from the backing store timelines is verified by
a number of async gem_exec_fence and gem_exec_schedule tests. The way we
do this is quite simple, we keep the fence for the vma binding separate
and only wait on it as required, and never add it to the obj->resv
itself.

Another consequence in reducing the locking around the vma is the
destruction of the vma is no longer globally serialised by struct_mutex.
A natural solution would be to add a kref to i915_vma, but that requires
decoupling the reference cycles, possibly by introducing a new
i915_mm_pages object that is own by both obj->mm and vma->pages.
However, we have not taken that route due to the overshadowing lmem/ttm
discussions, and instead play a series of complicated games with
trylocks to (hopefully) ensure that only one destruction path is called!

v2: Add some commentary, and some helpers to reduce patch churn.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191004134015.13204-4-chris@chris-wilson.co.uk
 		2019-10-04 15:39:02 +01:00
..
Makefile drm/i915: use upstream version of header tests 2019-07-30 12:11:57 +03:00
dvo_ch7xxx.c drm/i915: rename intel_drv.h to display/intel_display_types.h 2019-08-07 12:43:50 +03:00
dvo_ch7017.c drm/i915: rename intel_drv.h to display/intel_display_types.h 2019-08-07 12:43:50 +03:00
dvo_ivch.c drm/i915: rename intel_drv.h to display/intel_display_types.h 2019-08-07 12:43:50 +03:00
dvo_ns2501.c drm/i915: rename intel_drv.h to display/intel_display_types.h 2019-08-07 12:43:50 +03:00
dvo_sil164.c drm/i915: rename intel_drv.h to display/intel_display_types.h 2019-08-07 12:43:50 +03:00
dvo_tfp410.c drm/i915: rename intel_drv.h to display/intel_display_types.h 2019-08-07 12:43:50 +03:00
icl_dsi.c drm/i915: Wrappers for display register waits 2019-08-16 22:19:05 +01:00
intel_acpi.c
…
intel_acpi.h
…
intel_atomic.c drm/i915: Do not add all planes when checking scalers on glk+ 2019-09-25 13:34:06 +02:00
intel_atomic.h
…
intel_atomic_plane.c drm/i915: Rename planar linked plane variables 2019-09-25 13:30:16 +02:00
intel_atomic_plane.h drm/i915: Pass intel state to plane functions as well 2019-07-01 10:32:45 +02:00
intel_audio.c drm/i915: extend audio CDCLK>=2*BCLK constraint to more platforms 2019-10-04 15:44:34 +03:00
intel_audio.h
…
intel_bios.c drm/i915: introduce INTEL_DISPLAY_ENABLED() 2019-09-16 10:20:05 +03:00
intel_bios.h drm: Move port definition back to i915 header 2019-08-30 14:08:26 +05:30
intel_bw.c drm/i915/tgl: Add memory type decoding for bandwidth checking 2019-09-25 15:52:08 -07:00
intel_bw.h drm/i915/bw: make intel_atomic_get_bw_state() static 2019-08-07 12:01:46 +03:00
intel_cdclk.c drm/i915: Extract intel_modeset_calc_cdclk() 2019-09-16 14:51:09 +03:00
intel_cdclk.h drm/i915: Extract intel_modeset_calc_cdclk() 2019-09-16 14:51:09 +03:00
intel_color.c Revert "drm/i915/color: Extract icl_read_luts()" 2019-09-25 11:11:13 +03:00
intel_color.h drm/i915/display: Add func to compare hw/sw gamma lut 2019-09-04 11:55:30 +03:00
intel_combo_phy.c drm/i915: rename intel_drv.h to display/intel_display_types.h 2019-08-07 12:43:50 +03:00
intel_combo_phy.h drm/i915/gen11: Convert combo PHY logic to use new 'enum phy' namespace 2019-07-10 18:22:34 -07:00
intel_connector.c drm/i915: rename intel_drv.h to display/intel_display_types.h 2019-08-07 12:43:50 +03:00
intel_connector.h
…
intel_crt.c drm/i915: Clean up encoder->crtc_mask setup 2019-10-02 18:18:07 +03:00
intel_crt.h
…
intel_ddi.c drm/i915/mg: Use tc_port instead of port parameter to MG registers 2019-10-02 12:07:42 -07:00
intel_ddi.h
…
intel_display.c drm/i915: Pull i915_vma_pin under the vm->mutex 2019-10-04 15:39:02 +01:00
intel_display.h drm/i915/display: abstract all vgaarb access to intel_vga.[ch] 2019-10-02 13:31:54 +03:00
intel_display_power.c drm/i915/display: abstract all vgaarb access to intel_vga.[ch] 2019-10-02 13:31:54 +03:00
intel_display_power.h drm/i915: Align power domain names with port names 2019-08-28 19:33:42 +03:00
intel_display_types.h drm/i915/dp: remove static variable for aux last status 2019-10-04 15:10:27 +03:00
intel_dp.c drm/i915/dp: remove static variable for aux last status 2019-10-04 15:10:27 +03:00
intel_dp.h drm/i915/dp: Fix dsc bpp calculations, v5. 2019-09-25 13:26:05 +02:00
intel_dp_aux_backlight.c drm/i915: rename intel_drv.h to display/intel_display_types.h 2019-08-07 12:43:50 +03:00
intel_dp_aux_backlight.h
…
intel_dp_link_training.c drm/i915: rename intel_drv.h to display/intel_display_types.h 2019-08-07 12:43:50 +03:00
intel_dp_link_training.h
…
intel_dp_mst.c drm/i915: Limit MST modes based on plane size too 2019-10-02 17:21:48 +03:00
intel_dp_mst.h drm/i915/mst: un-inline intel_dp_mst_encoder_active_links() 2019-08-07 12:01:51 +03:00
intel_dpio_phy.c drm/i915: Wrappers for display register waits 2019-08-16 22:19:05 +01:00
intel_dpio_phy.h
…
intel_dpll_mgr.c drm/i915/tgl: Add the Thunderbolt PLL divider values 2019-10-04 13:43:42 +03:00
intel_dpll_mgr.h drm/i915/tgl: Add new pll ids 2019-07-11 16:31:12 -07:00
intel_dsb.c drm/i915: Pull i915_vma_pin under the vm->mutex 2019-10-04 15:39:02 +01:00
intel_dsb.h drm/i915/dsb: function to trigger workload execution of DSB. 2019-09-23 10:12:26 +03:00
intel_dsi.c drm/i915: Don't advertise modes that exceed the max plane size 2019-09-19 20:28:57 +03:00
intel_dsi.h drm/i915: rename intel_drv.h to display/intel_display_types.h 2019-08-07 12:43:50 +03:00
intel_dsi_dcs_backlight.c drm/i915: rename intel_drv.h to display/intel_display_types.h 2019-08-07 12:43:50 +03:00
intel_dsi_dcs_backlight.h
…
intel_dsi_vbt.c drm/i915: rename intel_drv.h to display/intel_display_types.h 2019-08-07 12:43:50 +03:00
intel_dvo.c drm/i915: Clean up encoder->crtc_mask setup 2019-10-02 18:18:07 +03:00
intel_dvo.h
…
intel_dvo_dev.h
…
intel_fbc.c drm/i915: Disable FBC if BIOS reserved memory (stolen) is unavailable 2019-09-12 11:43:48 +01:00
intel_fbc.h
…
intel_fbdev.c drm/i915: Pull i915_vma_pin under the vm->mutex 2019-10-04 15:39:02 +01:00
intel_fbdev.h
…
intel_fifo_underrun.c drm/i915: rename intel_drv.h to display/intel_display_types.h 2019-08-07 12:43:50 +03:00
intel_fifo_underrun.h
…
intel_frontbuffer.c drm/i915: Replace obj->pin_global with obj->frontbuffer 2019-09-03 05:39:37 +01:00
intel_frontbuffer.h drm/i915: Extract intel_frontbuffer active tracking 2019-08-16 09:51:11 +01:00
intel_gmbus.c drm/i915: introduce INTEL_DISPLAY_ENABLED() 2019-09-16 10:20:05 +03:00
intel_gmbus.h drm/i915: Move gmbus definitions out of i915_reg.h 2019-08-16 21:52:49 +01:00
intel_hdcp.c drm/i915/hdcp: Enable HDCP 1.4 and 2.2 on Gen12+ 2019-08-30 14:08:32 +05:30
intel_hdcp.h drm/i915/hdcp: update current transcoder into intel_hdcp 2019-08-30 14:08:30 +05:30
intel_hdmi.c drm/i915: Clean up encoder->crtc_mask setup 2019-10-02 18:18:07 +03:00
intel_hdmi.h drm: Move port definition back to i915 header 2019-08-30 14:08:26 +05:30
intel_hotplug.c drm/i915: Prefer encoder->name over port_name() 2019-09-02 18:43:28 +03:00
intel_hotplug.h drm: Move port definition back to i915 header 2019-08-30 14:08:26 +05:30
intel_lpe_audio.c drm/i915: add INTEL_NUM_PIPES() and use it 2019-09-11 22:33:20 +03:00
intel_lpe_audio.h
…
intel_lspcon.c drm/i915: rename intel_drv.h to display/intel_display_types.h 2019-08-07 12:43:50 +03:00
intel_lspcon.h
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intel_lvds.c drm/i915: Clean up encoder->crtc_mask setup 2019-10-02 18:18:07 +03:00
intel_lvds.h
…
intel_opregion.c drm/i915: rename intel_drv.h to display/intel_display_types.h 2019-08-07 12:43:50 +03:00
intel_opregion.h
…
intel_overlay.c drm/i915: Pull i915_vma_pin under the vm->mutex 2019-10-04 15:39:02 +01:00
intel_overlay.h
…
intel_panel.c drm/i915: rename intel_drv.h to display/intel_display_types.h 2019-08-07 12:43:50 +03:00
intel_panel.h
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intel_pipe_crc.c drm/i915: rename intel_drv.h to display/intel_display_types.h 2019-08-07 12:43:50 +03:00
intel_pipe_crc.h
…
intel_psr.c drm/i915/tgl: Access the right register when handling PSR interruptions 2019-09-04 17:03:35 -07:00
intel_psr.h drm/i915: Do not unmask PSR interruption in IRQ postinstall 2019-08-22 13:09:24 -07:00
intel_quirks.c drm/i915: rename intel_drv.h to display/intel_display_types.h 2019-08-07 12:43:50 +03:00
intel_quirks.h
…
intel_sdvo.c drm/i915: Clean up encoder->crtc_mask setup 2019-10-02 18:18:07 +03:00
intel_sdvo.h drm: Move port definition back to i915 header 2019-08-30 14:08:26 +05:30
intel_sdvo_regs.h
…
intel_sprite.c drm/i915: Fix g4x sprite scaling stride check with GTT remapping 2019-10-02 17:21:48 +03:00
intel_sprite.h drm/i915: Replace is_planar_yuv_format() with drm_format_info_is_yuv_semiplanar() 2019-09-16 14:44:03 +03:00
intel_tc.c drm/i915/tc: Update DP_MODE programming 2019-09-27 10:40:17 -07:00
intel_tc.h drm/i915/tc: Update DP_MODE programming 2019-09-27 10:40:17 -07:00
intel_tv.c drm/i915: Clean up encoder->crtc_mask setup 2019-10-02 18:18:07 +03:00
intel_tv.h
…
intel_vbt_defs.h drm/i915/gen11: Allow usage of all GPIO pins 2019-08-19 07:51:12 -07:00
intel_vdsc.c drm/i915/dp: Fix DSC enable code to use cpu_transcoder instead of encoder->type 2019-08-22 14:15:47 -07:00
intel_vdsc.h
…
intel_vga.c drm/i915/display: abstract all vgaarb access to intel_vga.[ch] 2019-10-02 13:31:54 +03:00
intel_vga.h drm/i915/display: abstract all vgaarb access to intel_vga.[ch] 2019-10-02 13:31:54 +03:00
vlv_dsi.c drm/i915: Use enum pipe consistently 2019-08-23 21:36:01 +03:00
vlv_dsi_pll.c drm/i915: Wrappers for display register waits 2019-08-16 22:19:05 +01:00