UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity
OpenCloudOS-Kernel/drivers/gpu/drm/i915
History
Ville Syrjälä 9ad6d99f18 drm/i915: Make i915_pipe_crc_read() oops proof 
Currently i915_pipe_crc_read() will drop pipe_crc->lock for the entire
duration of the copy_to_user() loop, which means it'll access
pipe_crc->entries without any protection. If another thread sneaks in
and frees pipe_crc->entries the code will oops.

Reorganize the code to hold the lock around everything except
copy_to_user(). After the copy the lock is reacquired and the the number
of available entries is rechecked.

Since this is a debug feature simplify the error handling a bit by
consuming the crc entry even if copy_to_user() would fail.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
 		2014-12-10 17:47:26 +01:00
..
Kconfig drm/i915: Ditch UMS config option 2014-07-24 10:59:53 +02:00
Makefile drm/i915: Move FBC stuff to intel_fbc.c 2014-12-10 17:47:20 +01:00
dvo.h
…
dvo_ch7xxx.c drm/i915: Remove spurious semicolons 2014-04-09 21:54:33 +02:00
dvo_ch7017.c
…
dvo_ivch.c drm/i915: Remove spurious semicolons 2014-04-09 21:54:33 +02:00
dvo_ns2501.c drm/i915: Check pixel clock in ns2501 mode_valid hook 2014-09-03 11:05:21 +02:00
dvo_sil164.c drm/i915: Remove spurious semicolons 2014-04-09 21:54:33 +02:00
dvo_tfp410.c drm/i915: Remove spurious semicolons 2014-04-09 21:54:33 +02:00
i915_cmd_parser.c drm/i915: Add MI_SET_APPID cmd to cmd parser tables 2014-12-10 17:47:21 +01:00
i915_debugfs.c drm/i915: Make i915_pipe_crc_read() oops proof 2014-12-10 17:47:26 +01:00
i915_dma.c drm/i915: Remove user pinning code 2014-12-03 09:35:11 +01:00
i915_drv.c drm/i915: Deal with video overlay on GPU reset 2014-12-03 09:35:24 +01:00
i915_drv.h drm/i915: Move FBC stuff to intel_fbc.c 2014-12-10 17:47:20 +01:00
i915_gem.c drm/i915: release struct_mutex on the i915_gem_init_hw fail path 2014-12-05 15:03:44 +01:00
i915_gem_context.c drm/i915: Move golden context init into ->init_context 2014-12-08 15:19:02 +01:00
i915_gem_debug.c drm/i915: prefer struct drm_i915_private to drm_i915_private_t 2014-03-31 15:34:21 +02:00
i915_gem_dmabuf.c dma-buf: use reservation objects 2014-07-08 13:03:20 -07:00
i915_gem_evict.c drm/i915: fix another use-after-free in i915_gem_evict_everything 2014-09-19 14:41:16 +02:00
i915_gem_execbuffer.c drm/i915: Convert trace functions from seqno to request 2014-12-03 09:35:21 +01:00
i915_gem_gtt.c drm/i915: Stop putting GGTT VMA at the head of the list 2014-12-04 11:51:36 +01:00
i915_gem_gtt.h drm/i915: Replace last_[rwf]_seqno with last_[rwf]_req 2014-12-03 09:35:14 +01:00
i915_gem_render_state.c drm/i915: Remove obsolete seqno parameter from 'i915_add_request' 2014-12-03 09:35:19 +01:00
i915_gem_render_state.h drm/i915/bdw: Render state init for Execlists 2014-09-03 11:04:52 +02:00
i915_gem_stolen.c drm/i915: Move flags describing VMA mappings into the VMA 2014-11-04 14:04:51 +01:00
i915_gem_tiling.c drm/i915: Replace last_[rwf]_seqno with last_[rwf]_req 2014-12-03 09:35:14 +01:00
i915_gem_userptr.c drm/i915: Do not leak pages when freeing userptr objects 2014-09-29 15:31:01 +02:00
i915_gpu_error.c drm/i915: Remove the now redundant 'obj->ring' 2014-12-03 09:35:23 +01:00
i915_ioc32.c drm/i915: remove redundant #ifdef CONFIG_COMPAT 2014-10-24 16:34:07 +02:00
i915_irq.c drm/i915: Check mask/bit helper functions 2014-12-08 16:30:00 +01:00
i915_params.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2014-10-14 09:39:08 +02:00
i915_reg.h drm/i915: Engage the DP scramble reset for pipe C on CHV 2014-12-10 17:47:24 +01:00
i915_suspend.c drm/i915: Move FBC stuff to intel_fbc.c 2014-12-10 17:47:20 +01:00
i915_sysfs.c drm/i915: Do not export RC6p and RC6pp if they don't exist 2014-10-24 16:34:00 +02:00
i915_trace.h drm/i915: Additional request structure tracing 2014-12-06 01:46:27 +01:00
i915_trace_points.c
…
i915_ums.c drm/i915: don't save/restore backlight hist ctl registers 2014-11-14 10:29:28 +01:00
intel_acpi.c
…
intel_audio.c drm/i915/audio: fix monitor presence indication after disable 2014-11-18 11:17:37 +01:00
intel_bios.c drm/i915: Parse VBT PSR block. 2014-12-03 09:35:05 +01:00
intel_bios.h drm/i915: Pixel Clock changes for DSI dual link 2014-12-05 15:28:20 +01:00
intel_crt.c drm/i915: Don't claim that we're resetting PCH ADPA register 2014-10-24 16:34:10 +02:00
intel_ddi.c drm/i915/skl: Update the DDI translation values for DP/eDP 1.3 2014-12-03 17:56:37 +01:00
intel_display.c drm/i915: Move FBC stuff to intel_fbc.c 2014-12-10 17:47:20 +01:00
intel_dp.c drm/i915: Enable PSR for Baytrail and Braswell. 2014-12-03 09:35:10 +01:00
intel_dp_mst.c drm: Miscellaneous fixes for v3.19-rc1 2014-11-15 09:37:20 +10:00
intel_drv.h drm/i915: Move FBC stuff to intel_fbc.c 2014-12-10 17:47:20 +01:00
intel_dsi.c drm/i915: Software workaround for getting the HW status of DSI Port C on BYT 2014-12-10 17:47:22 +01:00
intel_dsi.h drm/i915: Pixel Clock changes for DSI dual link 2014-12-05 15:28:20 +01:00
intel_dsi_cmd.c drm/i915: Dual link needs Shutdown and Turn on packet for both ports 2014-12-05 15:28:26 +01:00
intel_dsi_cmd.h drm/i915: Added port as parameter to the functions which does read/write of DSI Controller 2014-12-04 12:21:58 +01:00
intel_dsi_panel_vbt.c drm/i915: Pixel Clock changes for DSI dual link 2014-12-05 15:28:20 +01:00
intel_dsi_pll.c drm/i915: Use DSI Pll1 for enabling MIPI DSI on Port C 2014-12-10 17:47:21 +01:00
intel_dvo.c drm/i915: Don't call DVO mode_set hook on DPMS changes 2014-09-03 11:05:14 +02:00
intel_fbc.c drm/i915: Introduce FBC DocBook. 2014-12-10 17:47:23 +01:00
intel_fbdev.c drm/i915: Make intel_pin_and_fence_fb_obj take plane and framebuffer 2014-11-07 18:41:51 +01:00
intel_fifo_underrun.c drm/i915: kerneldoc for intel_fifo_underrun.c 2014-10-24 16:33:55 +02:00
intel_frontbuffer.c drm/i915: Introduce intel_psr.c 2014-11-17 19:12:28 +01:00
intel_hdmi.c drm/i915/chv: Enable AVI, SPD and HDMI infoframes for CHV. 2014-12-03 09:29:34 +01:00
intel_i2c.c drm/i915: Kill duplicated cdclk readout code from i2c 2014-07-07 11:27:52 +02:00
intel_lrc.c drm/i915: Add unique id to the request structure for debugging 2014-12-06 01:46:27 +01:00
intel_lrc.h drm/i915/bdw: Pin the context backing objects to GGTT on-demand 2014-11-19 19:32:58 +01:00
intel_lvds.c drm/i915: Pass the current pipe from eDP init to backlight setup 2014-11-14 10:29:20 +01:00
intel_modes.c
…
intel_opregion.c ACPI / i915: Update the condition to ignore firmware backlight change request 2014-09-30 01:11:18 +02:00
intel_overlay.c drm/i915: Deal with video overlay on GPU reset 2014-12-03 09:35:24 +01:00
intel_panel.c Linux 3.18-rc7 2014-12-02 10:58:33 +10:00
intel_pm.c drm/i915: Move FBC stuff to intel_fbc.c 2014-12-10 17:47:20 +01:00
intel_psr.c drm/i915: VLV/CHV PSR Software timer mode 2014-12-03 09:35:08 +01:00
intel_renderstate.h drm/i915 Add golden context support for Gen9 2014-11-04 14:04:55 +01:00
intel_renderstate_gen6.c drm/i915: Add headers to the various render state 2014-12-10 17:47:23 +01:00
intel_renderstate_gen7.c drm/i915: Add headers to the various render state 2014-12-10 17:47:23 +01:00
intel_renderstate_gen8.c drm/i915: Add headers to the various render state 2014-12-10 17:47:23 +01:00
intel_renderstate_gen9.c drm/i915: Add headers to the various render state 2014-12-10 17:47:23 +01:00
intel_ringbuffer.c drm/i915: Move golden context init into ->init_context 2014-12-08 15:19:02 +01:00
intel_ringbuffer.h drm/i915: s/init()/init_hw()/ in intel_engine_cs 2014-12-03 09:35:27 +01:00
intel_runtime_pm.c drm/i915: Fix short description of intel_display_power_is_enabled() 2014-12-03 09:35:12 +01:00
intel_sdvo.c drm/i915: Don't destroy DRM properties in the driver 2014-10-31 18:38:17 +01:00
intel_sdvo_regs.h
…
intel_sideband.c drm/i915: vlv/chv: fix DSI sideband register accessing 2014-05-19 17:50:14 +02:00
intel_sprite.c drm/i915: Move FBC stuff to intel_fbc.c 2014-12-10 17:47:20 +01:00
intel_tv.c drm/i915: Clarify irq_lock locking, intel_tv_detect 2014-09-19 14:43:19 +02:00
intel_uncore.c drm/i915/skl: Update in Gen9 multi-engine forcewake range 2014-12-03 09:29:41 +01:00