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exynos-linux-stable/drivers/gpu/drm/i915
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Ville Syrjälä f990312aaa drm/i915: Prevent zero length "index" write 
commit 56350fb8978bbf4aafe08f21234e161dd128b417 upstream.

The hardware always writes one or two bytes in the index portion of
an indexed transfer. Make sure the message we send as the index
doesn't have a zero length.

Cc: Daniel Kurtz <djkurtz@chromium.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Sean Paul <seanpaul@chromium.org>
Fixes: 56f9eac054 ("drm/i915/intel_i2c: use INDEX cycles for i2c read transactions")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171123194157.25367-3-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
(cherry picked from commit bb9e0d4bca50f429152e74a459160b41f3d60fb2)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-05 11:24:35 +01:00
..
gvt drm/i915: gvt: Introduce the basic architecture of GVT-g 2016-06-17 20:35:06 +01:00
dvo.h
dvo_ch7xxx.c
dvo_ch7017.c
dvo_ivch.c
dvo_ns2501.c
dvo_sil164.c
dvo_tfp410.c
i915_cmd_parser.c drm/i915: use NULL for NULL pointers 2016-09-16 10:35:43 +03:00
i915_debugfs.c Merge tag 'drm-intel-next-2016-09-19' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-09-20 06:23:22 +10:00
i915_drv.c drm/i915: Prevent the system suspend complete optimization 2017-06-17 06:41:49 +02:00
i915_drv.h drm/i915/vbt: don't propagate errors from intel_bios_init() 2017-06-14 15:06:05 +02:00
i915_gem.c drm/i915: Drop support for I915_EXEC_CONSTANTS_* execbuf parameters. 2017-04-18 07:11:46 +02:00
i915_gem.h
i915_gem_batch_pool.c drm/i915: Double check the active status on the batch pool 2016-08-04 20:19:50 +01:00
i915_gem_batch_pool.h drm/i915: Double check the active status on the batch pool 2016-08-04 20:19:50 +01:00
i915_gem_context.c drm/i915: Update reset path to fix incomplete requests 2016-09-09 14:23:05 +01:00
i915_gem_dmabuf.c drm/prime: Take a ref on the drm_dev when exporting a dma_buf 2016-10-05 15:30:32 +02:00
i915_gem_dmabuf.h drm/i915: Serialise presentation with imported dmabufs 2016-06-17 10:32:26 +01:00
i915_gem_evict.c drm/i915: Clear ret before unbinding in i915_gem_evict_something() 2017-02-01 08:33:10 +01:00
i915_gem_execbuffer.c drm/i915: Drop support for I915_EXEC_CONSTANTS_* execbuf parameters. 2017-04-18 07:11:46 +02:00
i915_gem_fence.c drm/i915: Use fence_write() from rpm resume 2016-10-28 15:18:51 +03:00
i915_gem_gtt.c drm/i915: remove writeq ifdeffery 2016-09-12 11:33:56 +03:00
i915_gem_gtt.h drm/i915: Embed the scratch page struct into each VM 2016-08-22 12:19:52 +01:00
i915_gem_render_state.c drm/i915: Use VMA for render state page tracking 2016-08-15 11:01:11 +01:00
i915_gem_render_state.h drm/i915: Use VMA for render state page tracking 2016-08-15 11:01:11 +01:00
i915_gem_request.c drm/i915: Distinguish last emitted request from last submitted request 2016-10-10 16:06:43 +03:00
i915_gem_request.h drm/i915: Fix oopses in the overlay code due to i915_gem_active stuff 2017-01-12 11:39:07 +01:00
i915_gem_shrinker.c drm/i915: Avoid rcu_barrier() from reclaim paths (shrinker) 2017-04-18 07:11:46 +02:00
i915_gem_stolen.c drm/i915/gvt: Disable access to stolen memory as a guest 2017-05-25 15:44:49 +02:00
i915_gem_tiling.c drm/i915: Move fence tracking from object to vma 2016-08-18 22:36:50 +01:00
i915_gem_userptr.c mm: replace get_user_pages_remote() write/force parameters with gup_flags 2016-10-19 08:12:02 -07:00
i915_gpu_error.c drm/i915: Make HWS_NEEDS_PHYSICAL the exception 2016-09-07 16:07:09 -07:00
i915_guc_reg.h drm/i915/guc: general tidying up (loader) 2016-09-15 10:56:02 +01:00
i915_guc_submission.c drm/i915/guc: Unwind GuC workqueue reservation if request construction fails 2016-10-10 16:06:44 +03:00
i915_ioc32.c
i915_irq.c drm/i915: Stop using RP_DOWN_EI on Baytrail 2017-04-18 07:11:46 +02:00
i915_memcpy.c drm/i915: Mark the static key for movntqda as static 2016-08-17 12:36:07 +01:00
i915_mm.c drm/i915: Use remap_io_mapping() to prefault all PTE in a single pass 2016-08-19 17:13:36 +01:00
i915_params.c drm/i915: Add a way to test the modeset done during gpu reset, v3. 2016-08-05 23:28:28 +03:00
i915_params.h drm/i915: Add a way to test the modeset done during gpu reset, v3. 2016-08-05 23:28:28 +03:00
i915_pci.c drm/i915: actually drive the BDW reserved IDs 2017-04-12 12:41:18 +02:00
i915_pvinfo.h drm/i915: Fix GVT-g PVINFO version compatibility check 2017-06-24 07:11:13 +02:00
i915_reg.h drm/i915: clarify PMINTRMSK/pm_intr_keep usage 2016-09-15 10:55:43 +01:00
i915_suspend.c drm/i915: pdev cleanup 2016-08-22 12:19:52 +01:00
i915_sw_fence.c drm/i915: Add a sw fence for collecting up dma fences 2016-09-09 14:22:55 +01:00
i915_sw_fence.h drm/i915: Add a sw fence for collecting up dma fences 2016-09-09 14:22:55 +01:00
i915_sysfs.c drm/i915: Fix setting of boost freq tunable 2017-01-09 08:32:26 +01:00
i915_trace.h drm/i915: Remove surplus drm_device parameter to i915_gem_evict_something() 2016-08-04 20:19:50 +01:00
i915_trace_points.c
i915_vgpu.c drm/i915: Fix GVT-g PVINFO version compatibility check 2017-06-24 07:11:13 +02:00
i915_vgpu.h drm/i915: Fold vGPU active check into inner functions 2016-06-17 19:44:29 +01:00
intel_acpi.c
intel_atomic.c drm: Consolidate plane arrays in drm_atomic_state 2016-06-02 17:20:25 +02:00
intel_atomic_plane.c drm: remove const attribute to hint at caller that they now own the memory 2016-08-16 14:06:53 +02:00
intel_audio.c Merge tag 'drm-intel-next-2016-09-19' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-09-20 06:23:22 +10:00
intel_bios.c drm/i915/bios: parse DDI ports also for CHV for HDMI DDC pin and DP AUX channel 2017-10-18 09:35:40 +02:00
intel_bios.h
intel_breadcrumbs.c drm/i915: Reset the breadcrumbs IRQ more carefully 2016-10-10 16:06:44 +03:00
intel_color.c drm/i915: Fix out-of-bounds array access in bdw_load_gamma_lut 2017-08-16 13:43:18 -07:00
intel_crt.c drm/i915: Don't leak edid in intel_crt_detect_ddc() 2017-02-01 08:33:11 +01:00
intel_csr.c drm/i915: Fix botched merge that downgrades CSR versions. 2016-08-22 16:08:32 +03:00
intel_ddi.c drm/i915: Add support for Kabylake to function obtaining shared PLL 2016-09-12 22:06:08 -07:00
intel_device_info.c drm/i915: workaround sparse warning on variable length arrays 2016-10-28 15:17:50 +03:00
intel_display.c drm/i915: Read timings from the correct transcoder in intel_crtc_mode_get() 2017-10-18 09:35:40 +02:00
intel_dp.c drm/i915/edp: read edp display control registers unconditionally 2017-11-08 10:08:32 +01:00
intel_dp_aux_backlight.c
intel_dp_link_training.c drm/i915: Make DP link training channel equalization DP 1.2 Spec compliant 2016-09-09 14:53:18 -07:00
intel_dp_mst.c drm/i915: Remove ddi_pll_sel from intel_crtc_state 2016-09-07 13:55:33 -07:00
intel_dpio_phy.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_dpll_mgr.c drm/i915/bxt: Add MST support when do DPLL calculation 2017-02-14 15:25:36 -08:00
intel_dpll_mgr.h drm/i915/dp: Add a standalone function to obtain shared dpll for HSW/BDW/SKL/BXT 2016-09-09 14:53:18 -07:00
intel_drv.h Revert "drm/i915: Do not rely on wm preservation for ILK watermarks" 2017-11-30 08:39:09 +00:00
intel_dsi.c drm/i915: Convert intel_dsi to use atomic state 2016-08-23 11:21:39 +02:00
intel_dsi.h drm/i915/dsi: CABC support for Panel PWM backlight control 2016-05-17 16:12:39 +03:00
intel_dsi_dcs_backlight.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_dsi_panel_vbt.c drm/i915/dsi: Fix chv_exec_gpio disabling the GPIOs it is setting 2017-01-09 08:32:25 +01:00
intel_dsi_pll.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_dvo.c drm/i915/dvo: Remove dangling call to drm_encoder_cleanup() 2016-08-29 12:28:09 +03:00
intel_engine_cs.c drm/i915: Reset the breadcrumbs IRQ more carefully 2016-10-10 16:06:44 +03:00
intel_fbc.c drm/i915/fbc: fix CFB size calculation for gen8+ 2016-10-28 15:23:52 +03:00
intel_fbdev.c drm/i915: prevent crash with .disable_display parameter 2017-02-01 08:33:11 +01:00
intel_fifo_underrun.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_frontbuffer.c drm/i915: Use dev_priv consistently through the intel_frontbuffer interface 2016-08-04 20:20:03 +01:00
intel_frontbuffer.h drm/i915: Use dev_priv consistently through the intel_frontbuffer interface 2016-08-04 20:20:03 +01:00
intel_guc.h drm/i915/guc: Unwind GuC workqueue reservation if request construction fails 2016-10-10 16:06:44 +03:00
intel_guc_fwif.h drm/doc: Fix more kerneldoc/sphinx warnings 2016-08-16 16:09:58 +02:00
intel_guc_loader.c drm/i915/guc: general tidying up (loader) 2016-09-15 10:56:02 +01:00
intel_gvt.c drm/i915/gvt: Mark i915.enable_gvt as false if loading fails 2016-06-21 12:40:13 +01:00
intel_gvt.h drm/i915: gvt: Introduce the basic architecture of GVT-g 2016-06-17 20:35:06 +01:00
intel_hdmi.c drm/i915: Respect alternate_ddc_pin for all DDI ports 2016-11-07 18:22:06 +02:00
intel_hotplug.c drm/i915: Only enable hotplug interrupts if the display interrupts are enabled 2017-04-18 07:11:45 +02:00
intel_i2c.c drm/i915: Prevent zero length "index" write 2017-12-05 11:24:35 +01:00
intel_lrc.c Revert "drm/i915/execlists: Reset RING registers upon resume" 2017-04-18 07:11:49 +02:00
intel_lrc.h drm/i915: Update reset path to fix incomplete requests 2016-09-09 14:23:05 +01:00
intel_lvds.c Merge tag 'drm-intel-next-2016-09-19' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-09-20 06:23:22 +10:00
intel_mocs.c drm/i915: Rename struct intel_ringbuffer to struct intel_ring 2016-08-02 22:58:16 +01:00
intel_mocs.h drm/i915: rename 'ring' where it refers to an engine or engine_id 2016-07-21 09:59:41 +01:00
intel_modes.c drm: Remove superflous linux/fb.h includes 2016-08-12 10:41:39 +02:00
intel_opregion.c drm/i915: Fix not finding the VBT when it overlaps with OPREGION_ASLE_EXT 2017-03-15 10:02:51 +08:00
intel_overlay.c drm/i915: Fix the overlay frontbuffer tracking 2017-10-08 10:26:02 +02:00
intel_panel.c drm/i915/backlight: setup backlight pwm alternate increment on backlight enable 2016-10-10 16:05:52 +03:00
intel_pm.c Revert "drm/i915: Do not rely on wm preservation for ILK watermarks" 2017-11-30 08:39:09 +00:00
intel_psr.c drm/i915/psr: disable psr2 for resolution greater than 32X20 2017-10-08 10:26:05 +02:00
intel_renderstate.h drm/i915: Remove duplicate golden render state init from execlists 2016-08-02 22:58:30 +01:00
intel_renderstate_gen6.c
intel_renderstate_gen7.c
intel_renderstate_gen8.c
intel_renderstate_gen9.c
intel_ringbuffer.c drm/i915: Remove WaDisableLSQCROPERFforOCL KBL workaround. 2017-02-01 08:33:14 +01:00
intel_ringbuffer.h drm/i915: Reset the breadcrumbs IRQ more carefully 2016-10-10 16:06:44 +03:00
intel_runtime_pm.c drm/i915/dsi: Do not clear DPOUNIT_CLOCK_GATE_DISABLE from vlv_init_display_clock_gating 2017-01-09 08:32:26 +01:00
intel_sdvo.c drm/i915: Convert intel_sdvo to use atomic state 2016-08-23 11:21:51 +02:00
intel_sdvo_regs.h
intel_sideband.c drm/i915: Convert wait_for(I915_READ(reg)) to intel_wait_for_register() 2016-06-30 15:42:33 +01:00
intel_sprite.c drm/i915: Workaround VLV/CHV DSI scanline counter hardware fail 2017-06-17 06:41:58 +02:00
intel_tv.c drm/i915: Make encoder->compute_config take the connector state 2016-08-23 11:07:23 +02:00
intel_uncore.c drm/i915: Just clear the mmiodebug before a register access 2016-10-10 16:06:41 +03:00
intel_vbt_defs.h drm/i915: Assume non-DP++ port if dvo_port is HDMI and there's no AUX ch specified in the VBT 2016-11-16 10:06:14 +02:00
Kconfig drm/i915: gvt: Introduce the basic architecture of GVT-g 2016-06-17 20:35:06 +01:00
Kconfig.debug drm/i915: Select DRM_VGEM for igt 2016-07-10 13:22:39 +01:00
Makefile drm/i915: Add a sw fence for collecting up dma fences 2016-09-09 14:22:55 +01:00