linux_dsm_epyc7002/drivers/gpu/drm/i915
Paulo Zanoni 79f2624b1b drm/i915/fbc: fix CFB size calculation for gen8+
Broadwell and newer actually compress up to 2560 lines instead of 2048
(as documented in the FBC_CTL page). If we don't take this into
consideration we end up reserving too little stolen memory for the
CFB, so we may allocate something else (such as a ring) right after
what we reserved, and the hardware will overwrite it with the contents
of the CFB when FBC is active, causing GPU hangs. Another possibility
is that the CFB may be allocated at the very end of the available
space, so the CFB will overlap the reserved stolen area, leading to
FIFO underruns.

This bug has always been a problem on BDW (the only affected platform
where FBC is enabled by default), but it's much easier to reproduce
since the following commit:
    commit c58b735fc7
    Author: Chris Wilson <chris@chris-wilson.co.uk>
    Date:   Thu Aug 18 17:16:57 2016 +0100
        drm/i915: Allocate rings from stolen

Of course, you can only reproduce the bug if your screen is taller
than 2048 lines.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98213
Fixes: a98ee79317 ("drm/i915/fbc: enable FBC by default on HSW and BDW")
Cc: <stable@vger.kernel.org> # v4.6+
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1477065346-13736-1-git-send-email-paulo.r.zanoni@intel.com
2016-10-24 17:37:37 -02:00
..
gvt drm/i915/gvt: do not ignore return value of create_scratch_page 2016-10-20 17:31:36 +08:00
dvo_ch7xxx.c
dvo_ch7017.c
dvo_ivch.c
dvo_ns2501.c
dvo_sil164.c
dvo_tfp410.c
dvo.h
i915_cmd_parser.c drm/i915: Allocate intel_engine_cs structure only for the enabled engines 2016-10-14 09:58:43 +01:00
i915_debugfs.c drm/i915: Use RPM as the barrier for controlling user mmap access 2016-10-24 13:45:35 +01:00
i915_drv.c drm/i915: Move fence cancellation to runtime suspend 2016-10-24 13:45:38 +01:00
i915_drv.h drm/i915: Move fence cancellation to runtime suspend 2016-10-24 13:45:38 +01:00
i915_gem_batch_pool.c
i915_gem_batch_pool.h
i915_gem_context.c drm/i915: Make IS_IVYBRIDGE only take dev_priv 2016-10-14 12:23:19 +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
i915_gem_evict.c drm/i915: Move user fault tracking to a separate list 2016-10-24 13:45:35 +01:00
i915_gem_execbuffer.c drm/i915: Restrict pagefault disabling to just around copy_from_user() 2016-10-18 14:22:27 +01:00
i915_gem_fence.c drm/i915: Move fence cancellation to runtime suspend 2016-10-24 13:45:38 +01:00
i915_gem_gtt.c drm/i915: Remove RPM sequence checking 2016-10-24 13:45:37 +01:00
i915_gem_gtt.h drm/i915: Remove unused "valid" parameter from pte_encode 2016-10-14 12:40:32 +01:00
i915_gem_render_state.c drm/i915: Make INTEL_GEN only take dev_priv 2016-10-14 12:23:19 +01:00
i915_gem_render_state.h
i915_gem_request.c drm/i915: Allocate intel_engine_cs structure only for the enabled engines 2016-10-14 09:58:43 +01:00
i915_gem_request.h drm/i915: Nonblocking request submission 2016-09-09 14:23:08 +01:00
i915_gem_shrinker.c drm/i915: Treat a framebuffer reference as an active reference whilst shrinking 2016-10-12 17:17:20 +01:00
i915_gem_stolen.c drm/i915: Make IS_GEN macros only take dev_priv 2016-10-14 12:23:22 +01:00
i915_gem_tiling.c drm/i915: Use RPM as the barrier for controlling user mmap access 2016-10-24 13:45:35 +01:00
i915_gem_userptr.c drm/i915: Expand bool interruptible to pass flags to i915_wait_request() 2016-09-09 14:23:03 +01:00
i915_gem.c drm/i915: Move fence cancellation to runtime suspend 2016-10-24 13:45:38 +01:00
i915_gem.h
i915_gpu_error.c drm/i915: Add a sunset clause to GPU hang logging 2016-10-20 14:07:22 +01:00
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: Allocate intel_engine_cs structure only for the enabled engines 2016-10-14 09:58:43 +01:00
i915_ioc32.c
i915_irq.c drm/i915: Stop reporting error details in dmesg as well as the error-state 2016-10-20 13:00:06 +01:00
i915_memcpy.c
i915_mm.c
i915_params.c drm/i915: Allow disabling error capture 2016-10-12 12:00:32 +01:00
i915_params.h drm/i915: Allow disabling error capture 2016-10-12 12:00:32 +01:00
i915_pci.c drm/i915: keep declarations in i915_drv.h 2016-09-22 14:53:29 +03:00
i915_pvinfo.h
i915_reg.h drm/i915: Make IS_HASWELL only take dev_priv 2016-10-14 12:23:19 +01:00
i915_suspend.c drm/i915: Make IS_GEN macros only take dev_priv 2016-10-14 12:23:22 +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: Allow disabling error capture 2016-10-12 12:00:32 +01:00
i915_trace_points.c
i915_trace.h
i915_vgpu.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_vgpu.h
intel_acpi.c
intel_atomic_plane.c
intel_atomic.c
intel_audio.c drm/i915: Make IS_CHERRYVIEW only take dev_priv 2016-10-14 12:23:19 +01:00
intel_bios.c drm/i915: Clean up DDI DDC/AUX CH sanitation 2016-10-21 15:43:40 +03:00
intel_bios.h
intel_breadcrumbs.c drm/i915: Allocate intel_engine_cs structure only for the enabled engines 2016-10-14 09:58:43 +01:00
intel_color.c drm/i915: Make IS_CHERRYVIEW only take dev_priv 2016-10-14 12:23:19 +01:00
intel_crt.c drm/i915: Make IS_GEN macros only take dev_priv 2016-10-14 12:23:22 +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: KBL - Recommended buffer translation programming for DisplayPort 2016-10-20 14:50:44 -07:00
intel_device_info.c drm/i915: Reduce trickery in DEV_INFO_FOR_EACH_FLAG 2016-10-05 15:24:54 +03:00
intel_display.c drm: i915: Wait for fences on new fb, not old 2016-10-24 09:02:58 +02:00
intel_dp_aux_backlight.c
intel_dp_link_training.c drm/i915/skl: drop workarounds for A0 and B0 revisions 2016-09-26 12:08:22 +03:00
intel_dp_mst.c Revert "drm/i915: start adding dp mst audio" 2016-09-29 11:02:41 +03:00
intel_dp.c drm/i915/dp: add lane_count check in intel_dp_check_link_status 2016-10-21 16:09:22 +03:00
intel_dpio_phy.c
intel_dpll_mgr.c drm/i915: Make IS_BROXTON only take dev_priv 2016-10-14 12:23:19 +01:00
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 drm/i915: Remove RPM sequence checking 2016-10-24 13:45:37 +01:00
intel_dsi_dcs_backlight.c
intel_dsi_panel_vbt.c drm/i915/dsi: double check element parsing against size if present 2016-09-19 18:38:11 +03:00
intel_dsi_pll.c drm/i915: Make IS_BROXTON only take dev_priv 2016-10-14 12:23:19 +01:00
intel_dsi.c drm/i915: Make IS_CHERRYVIEW only take dev_priv 2016-10-14 12:23:19 +01:00
intel_dsi.h
intel_dvo.c drm/i915: Store port enum in intel_encoder 2016-09-21 09:32:00 -07:00
intel_engine_cs.c drm/i915: Do not use INTEL_INFO(dev_priv)->ring_mask inside WARNs 2016-10-14 12:23:19 +01:00
intel_fbc.c drm/i915/fbc: fix CFB size calculation for gen8+ 2016-10-24 17:37:37 -02:00
intel_fbdev.c
intel_fifo_underrun.c drm/i915: Make IS_GEN macros only take dev_priv 2016-10-14 12:23:22 +01:00
intel_frontbuffer.c
intel_frontbuffer.h
intel_guc_fwif.h
intel_guc_loader.c drm/i915/guc: Sanitory checks for platform that dont have GuC 2016-10-18 10:30:00 -02:00
intel_guc.h drm/i915/guc: Unwind GuC workqueue reservation if request construction fails 2016-10-10 16:06:44 +03:00
intel_gvt.c Documentation/gpu: Add section for Intel GVT-g host support 2016-10-20 17:18:39 +08:00
intel_gvt.h drm/i915/gvt: clean up intel_gvt.h as interface for i915 core 2016-10-20 17:18:30 +08:00
intel_hdmi.c drm/i915: Respect alternate_ddc_pin for all DDI ports 2016-10-21 15:43:40 +03:00
intel_hotplug.c
intel_i2c.c drm/i915: GMBUS don't need no forcewake 2016-10-17 14:26:42 +03:00
intel_lrc.c drm/i915: Allocate intel_engine_cs structure only for the enabled engines 2016-10-14 09:58:43 +01:00
intel_lrc.h drm/i915: Update reset path to fix incomplete requests 2016-09-09 14:23:05 +01:00
intel_lspcon.c drm/i915: make lspcon_get_current_mode static 2016-10-19 12:55:35 +03:00
intel_lvds.c drm/i915: Make IS_GEN macros only take dev_priv 2016-10-14 12:23:22 +01:00
intel_mocs.c
intel_mocs.h
intel_modes.c
intel_opregion.c drm/i915: Ignore OpRegion panel type except on select machines 2016-09-14 11:25:05 +03:00
intel_overlay.c drm/i915: Allocate intel_engine_cs structure only for the enabled engines 2016-10-14 09:58:43 +01:00
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 drm/i915: Remove RPM sequence checking 2016-10-24 13:45:37 +01:00
intel_psr.c drm/i915: Make IS_CHERRYVIEW only take dev_priv 2016-10-14 12:23:19 +01:00
intel_renderstate_gen6.c
intel_renderstate_gen7.c
intel_renderstate_gen8.c
intel_renderstate_gen9.c
intel_renderstate.h
intel_ringbuffer.c drm/i915/gen9: Remove WaEnableYV12BugFixInHalfSliceChicken7 2016-10-21 14:22:50 +03:00
intel_ringbuffer.h drm/i915: Allocate intel_engine_cs structure only for the enabled engines 2016-10-14 09:58:43 +01:00
intel_runtime_pm.c drm/i915: Remove RPM sequence checking 2016-10-24 13:45:37 +01:00
intel_sdvo_regs.h
intel_sdvo.c drm/i915: Make INTEL_DEVID only take dev_priv 2016-10-14 12:23:19 +01:00
intel_sideband.c
intel_sprite.c drm/i915/gen9: Get rid of redundant watermark values 2016-10-19 18:24:18 -02:00
intel_tv.c drm/i915: Make INTEL_DEVID only take dev_priv 2016-10-14 12:23:19 +01:00
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
Kconfig drm/i915: remove AGP dependency from DRM_I915 kconfig help text 2016-10-24 14:41:24 +03:00
Kconfig.debug
Makefile drm/i915: Add lspcon support for I915 driver 2016-10-18 12:42:47 +03:00