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linux-hardened/drivers/gpu/drm/i915
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Paulo Zanoni 0dd81544c9 drm/i915/fbc: don't use the frontbuffer tracking subsystem for flips 
Before this patch, page flips would call intel_frontbuffer_flip() and
intel_frontbuffer_flip_complete(), which would call intel_fbc_flush(),
which would call intel_fbc_update(). The problem is that drawing
operations also trigger intel_fbc_flush() calls, so it's not
guaranteed that we have the CRTC and FB locks grabbed when
intel_fbc_flush() happens, since the call trace may come from the
rendering path.

We're trying to make the FBC code grab the appropriate CRTC/FB locks,
so split the drawing and the flipping logic in order to achieve that
in later patches. So now the frontbuffer tracking code is just going
to be used for frontbuffer drawing, and intel_fbc_update() is going to
be used directly for actual page flips.

As a note, we don't need to call intel_fbc_flip() during the two
places where we call intel_frontbuffer_flip() since in one of them we
already have an intel_fbc_update() call, and in the other we have the
planes disabled.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453210558-7875-7-git-send-email-paulo.r.zanoni@intel.com
2016-01-29 18:10:20 -02:00
..
dvo.h drm/i915: constify intel_dvo_dev_ops structures 2015-12-09 08:21:10 +01:00
dvo_ch7xxx.c drm/i915: constify intel_dvo_dev_ops structures 2015-12-09 08:21:10 +01:00
dvo_ch7017.c drm/i915: constify intel_dvo_dev_ops structures 2015-12-09 08:21:10 +01:00
dvo_ivch.c drm/i915: constify intel_dvo_dev_ops structures 2015-12-09 08:21:10 +01:00
dvo_ns2501.c drm/i915: constify intel_dvo_dev_ops structures 2015-12-09 08:21:10 +01:00
dvo_sil164.c drm/i915: constify intel_dvo_dev_ops structures 2015-12-09 08:21:10 +01:00
dvo_tfp410.c drm/i915: constify intel_dvo_dev_ops structures 2015-12-09 08:21:10 +01:00
i915_cmd_parser.c drm/i915: Type safe register read/write 2015-11-18 15:39:11 +02:00
i915_debugfs.c drm/i915/gen9: Add framework to whitelist specific GPU registers 2016-01-25 16:48:04 +01:00
i915_dma.c drm/i915: Move stolen memory initialization earlier during loading 2016-01-27 17:43:16 +02:00
i915_drv.c drm/i915: refine qemu south bridge detection 2016-01-29 08:56:26 +02:00
i915_drv.h drm/i915/fbc: replace frequent dev_priv->fbc.x with fbc->x 2016-01-29 18:09:37 -02:00
i915_gem.c drm/i915: Make LRC (un)pinning work on context and engine 2016-01-28 17:23:15 +00:00
i915_gem_batch_pool.c
i915_gem_batch_pool.h
i915_gem_context.c drm/i915: Fix premature LRC unpin in GuC mode 2016-01-28 17:23:15 +00:00
i915_gem_debug.c
i915_gem_dmabuf.c
i915_gem_evict.c drm/i915: Add soft-pinning API for execbuffer 2015-12-09 10:20:17 +00:00
i915_gem_execbuffer.c Fix pointer tests in error-handling paths 2016-01-28 17:42:14 +00:00
i915_gem_fence.c Linux 4.4-rc4 2015-12-08 11:04:26 +10:00
i915_gem_gtt.c drm/i915: Pass rotation_info to intel_rotate_fb_obj_pages() 2016-01-28 20:56:32 +02:00
i915_gem_gtt.h drm/i915: Rename the rotated gtt view member to 'rotated' 2016-01-28 20:55:55 +02:00
i915_gem_render_state.c drm/i915: mark GEM object pages dirty when mapped & written by the CPU 2015-12-11 18:11:53 +01:00
i915_gem_render_state.h
i915_gem_shrinker.c drm/i915: Sanitize GEM shrinker init and clean-up 2016-01-27 17:43:14 +02:00
i915_gem_stolen.c drm/i915: Allow use of get_dma_address for stolen backed objects 2016-01-05 17:46:27 +01:00
i915_gem_tiling.c drm/i915: get runtime PM reference around GEM set_tiling IOCTL 2015-11-17 18:43:30 +02:00
i915_gem_userptr.c drm/i915: Improve handling of overlapping objects 2016-01-25 19:03:46 +01:00
i915_gpu_error.c drm/i915: abolish separate per-ring default_context pointers 2016-01-21 09:21:29 +01:00
i915_guc_reg.h drm/i915/guc: Add GuC ADS (Addition Data Structure) - allocation 2016-01-05 11:33:34 +01:00
i915_guc_submission.c drm/i915/guc: Decouple GuC engine id from ring id 2016-01-25 10:56:30 +00:00
i915_ioc32.c
i915_irq.c drm/i915/gen8: Factor out display interrupt handling 2016-01-13 10:01:53 +00:00
i915_params.c drm/i915: Decouple struct i915_params i915 into i915_params.h 2015-12-21 14:35:03 +01:00
i915_params.h drm/i915: Reorder i915_params struct. 2015-12-21 14:35:12 +01:00
i915_reg.h drm/i915/skl: Enable Per context Preemption granularity control 2016-01-25 16:48:52 +01:00
i915_suspend.c drm/i915: Separate cherryview from valleyview 2015-12-10 11:07:24 +01:00
i915_sysfs.c drm/i915: use kobj_to_dev() 2016-01-13 16:40:50 +01:00
i915_trace.h drm/i915: Type safe register read/write 2015-11-18 15:39:11 +02:00
i915_trace_points.c
i915_vgpu.c drm/i915: Turn __raw_i915_read8() & co. in to inline functions 2015-10-26 16:28:04 +02:00
i915_vgpu.h drm/i915: Type safe register read/write 2015-11-18 15:39:11 +02:00
intel_acpi.c drm/i915: Drop unnecessary #include <linux/vga_switcheroo.h> 2015-10-13 10:18:38 +02:00
intel_atomic.c Revert "drm/i915: Add two-stage ILK-style watermark programming (v10)" 2016-01-20 10:07:22 +01:00
intel_atomic_plane.c drm/i915: Remove commit_plane function pointer. 2016-01-07 13:52:04 +01:00
intel_audio.c Add get_eld audio component for i915/HD-audio 2015-12-11 19:28:27 +01:00
intel_bios.c drm/i915/bios: Fix the sequence size calculations for MIPI seq v3 2016-01-15 11:38:11 +02:00
intel_bios.h drm/i915/bios: add defines for v3 sequence block 2016-01-11 19:16:19 +02:00
intel_crt.c Merge tag 'drm-intel-next-2015-12-18' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-12-23 14:22:09 +10:00
intel_csr.c drm/i915: Demote user facing DMC firmware load failure message 2016-01-19 11:11:58 +01:00
intel_ddi.c Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued 2016-01-18 08:18:16 +01:00
intel_display.c drm/i915/fbc: don't use the frontbuffer tracking subsystem for flips 2016-01-29 18:10:20 -02:00
intel_dp.c drm/i915: Do not put big intel_crtc_state on the stack 2016-01-20 10:08:54 +00:00
intel_dp_link_training.c drm/i915: Make intel_dp_source_supports_hbr2() take an intel_dp pointer 2015-11-05 15:14:56 +02:00
intel_dp_mst.c Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued 2016-01-18 08:18:16 +01:00
intel_drv.h drm/i915: Make display gtt offsets u32 2016-01-28 20:56:38 +02:00
intel_dsi.c Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued 2016-01-18 08:18:16 +01:00
intel_dsi.h drm/i915/dsi: abstract get pclk platform differences 2016-01-08 13:25:12 +02:00
intel_dsi_panel_vbt.c drm/i915/dsi: add debug printing of the new sequence block names 2016-01-11 19:20:59 +02:00
intel_dsi_pll.c drm/i915/dsi: remove unused dsi_rr_formula() 2016-01-08 13:30:55 +02:00
intel_dvo.c drm: Pass 'name' to drm_encoder_init() 2015-12-11 09:13:20 +01:00
intel_fbc.c drm/i915/fbc: don't use the frontbuffer tracking subsystem for flips 2016-01-29 18:10:20 -02:00
intel_fbdev.c drm/i915: Remove obsolete code from intelfb_alloc() 2015-12-21 17:03:25 +01:00
intel_fifo_underrun.c drm/i915: Introduce bdw_{update,enable,disable}_pipe_irq() 2015-11-26 18:55:39 +02:00
intel_frontbuffer.c
intel_guc.h drm/i915/guc: Decouple GuC engine id from ring id 2016-01-25 10:56:30 +00:00
intel_guc_fwif.h drm/i915/guc: Decouple GuC engine id from ring id 2016-01-25 10:56:30 +00:00
intel_guc_loader.c drm/i915/guc: Fix a memory leak where guc->execbuf_client is not freed 2016-01-18 09:58:49 +00:00
intel_hdmi.c drm/i915: Fix file permissions 2016-01-29 10:16:24 +02:00
intel_hotplug.c drm/i915: intel_hpd_init(): Fix suspend/resume reprobing 2016-01-13 10:49:42 +02:00
intel_i2c.c drm/i915: Separate cherryview from valleyview 2015-12-10 11:07:24 +01:00
intel_lrc.c drm/i915: Fix premature LRC unpin in GuC mode 2016-01-28 17:23:15 +00:00
intel_lrc.h drm/i915: Make LRC (un)pinning work on context and engine 2016-01-28 17:23:15 +00:00
intel_lvds.c drm: Pass 'name' to drm_encoder_init() 2015-12-11 09:13:20 +01:00
intel_mocs.c drm/i915: Type safe register read/write 2015-11-18 15:39:11 +02:00
intel_mocs.h
intel_modes.c drm/i915: Add HDMI aspect ratio property for SDVO 2015-09-30 10:20:12 +02:00
intel_opregion.c drm/i915/opregion: handle VBT sizes bigger than 6 KB 2015-12-17 11:40:57 +02:00
intel_overlay.c drm/i915: simplify allocation of driver-internal requests 2016-01-21 09:21:29 +01:00
intel_panel.c drm/i915/backlight: prefer dev_priv over dev pointer 2015-12-18 11:37:44 +02:00
intel_pm.c drm/i915: Standardize on 'cpp' for bytes per pixel 2016-01-28 20:56:57 +02:00
intel_psr.c drm/i915: PSR also doesn't have link_entry_time on SKL. 2015-12-11 16:32:56 -08:00
intel_renderstate.h
intel_renderstate_gen6.c
intel_renderstate_gen7.c
intel_renderstate_gen8.c
intel_renderstate_gen9.c
intel_ringbuffer.c drm/i915/gen9: Add WaOCLCoherentLineFlush 2016-01-25 16:49:15 +01:00
intel_ringbuffer.h drm/i915/guc: Decouple GuC engine id from ring id 2016-01-25 10:56:30 +00:00
intel_runtime_pm.c drm/i915: Kill intel_prepare_ddi() 2016-01-12 16:05:12 +02:00
intel_sdvo.c drm: Pass 'name' to drm_encoder_init() 2015-12-11 09:13:20 +01:00
intel_sdvo_regs.h drm/i915/sdvo: revert bogus kernel-doc comments to normal comments 2016-01-20 10:21:34 +02:00
intel_sideband.c
intel_sprite.c drm/i915: Standardize on 'cpp' for bytes per pixel 2016-01-28 20:56:57 +02:00
intel_tv.c drm: Pass 'name' to drm_encoder_init() 2015-12-11 09:13:20 +01:00
intel_uncore.c drm/i915: Limit the auto arming of mmio debugs on vlv/chv 2016-01-21 11:52:45 +02:00
Kconfig drm/i915: Remove select to deleted STOP_MACHINE from Kconfig 2016-01-25 16:38:39 +01:00
Makefile drm/i915: Move generic link training code to a separate file 2015-11-05 15:14:56 +02:00