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fdb14d335f
linux_dsm_epyc7002/drivers/gpu/drm/i915
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Manasi Navare fdb14d335f drm/i915: Find fallback link rate/lane count 
If link training fails, then we need to fallback to lower
link rate first and if link training fails at RBR, then
fallback to lower lane count.
This function finds the next lower link rate/lane count
value after link training failure and limits the max
link_rate and lane_count values to these fallback values.

v7:
* Remove unnecessary intializations and remove redundant
call to intel_dp_common_rates (Jani Nikula)
v6:
* Cap the max link rate and lane count to the max
values obtained during fallback link training (Daniel Vetter)
v5:
* Start the fallback at the lane count value passed not
the max lane count (Jani Nikula)
v4:
* Remove the redundant variable link_train_failed
v3:
* Remove fallback_link_rate_index variable, just obtain
that using the helper intel_dp_link_rate_index (Jani Nikula)
v2:
Squash the patch that returns the link rate index (Jani Nikula)

Acked-by: Tony Cheng <tony.cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1481252712-12925-1-git-send-email-manasi.d.navare@intel.com
2016-12-13 16:31:35 +02:00
..
gvt drm/i915: Mark all non-vma being inserted into the address spaces 2016-12-05 20:49:17 +00:00
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: Use the precomputed value for whether to enable command parsing 2016-11-24 13:52:34 +00:00
i915_debugfs.c drm/i915/debugfs: Move out pipe CRC code 2016-12-13 09:41:24 +01:00
i915_drv.c drm/i915: Use DRM_DEV_ERROR in i915_driver_load 2016-12-08 12:31:33 +00:00
i915_drv.h drm/i915: Parse panel backlight controller from VBT 2016-12-12 17:22:08 +02:00
i915_gem_batch_pool.c drm/i915: Move GEM activity tracking into a common struct reservation_object 2016-10-28 20:53:50 +01:00
i915_gem_batch_pool.h
i915_gem_context.c drm/i915: More GEM init dev_priv cleanup 2016-12-01 18:01:16 +00:00
i915_gem_dmabuf.c drm/i915: Make GEM object alloc/free and stolen created take dev_priv 2016-12-01 18:00:15 +00:00
i915_gem_evict.c drm/i915: Retire before attempting to evict from the active lists 2016-12-12 12:25:32 +00:00
i915_gem_execbuffer.c drm/i915: Fix i915_gem_evict_for_vma (soft-pinning) 2016-12-05 20:49:17 +00:00
i915_gem_fence_reg.c drm/i915: distinguish G33 and Pineview from each other 2016-12-07 23:28:33 +02:00
i915_gem_fence_reg.h drm/i915: Split out i915_vma.c 2016-11-11 14:34:54 +02:00
i915_gem_gtt.c drm/i915: Advertise ppgtt support type in platform definition 2016-12-07 07:09:55 +00:00
i915_gem_gtt.h drm/i915: Convert vm->dev backpointer to vm->i915 2016-11-29 11:38:00 +00:00
i915_gem_internal.c drm/i915: rename BROADWATER and CRESTLINE to I965G and I965GM, respectively 2016-12-07 15:18:33 +02:00
i915_gem_object.h drm/i915: Move frontbuffer CS write tracking from ggtt vma to object 2016-11-18 11:15:59 +00:00
i915_gem_render_state.c drm/i915: Introduce HAS_64BIT_RELOC 2016-11-03 12:45:57 +02:00
i915_gem_render_state.h drm/i915: Reuse the active golden render state batch 2016-10-28 20:53:44 +01:00
i915_gem_request.c drm/i915: Integrate i915_sw_fence with debugobjects 2016-11-25 13:49:26 +00:00
i915_gem_request.h drm/i915/scheduler: Execute requests in order of priorities 2016-11-14 21:01:21 +00:00
i915_gem_shrinker.c drm/i915: Unify global_list into global_link 2016-11-02 15:17:13 +02:00
i915_gem_stolen.c drm/i915: distinguish G33 and Pineview from each other 2016-12-07 23:28:33 +02:00
i915_gem_tiling.c drm/i915: Convert vm->dev backpointer to vm->i915 2016-11-29 11:38:00 +00:00
i915_gem_timeline.c drm/i915: Create distinct lockclasses for execution vs user timelines 2016-11-14 21:00:21 +00:00
i915_gem_timeline.h drm/i915: Rename i915_gem_timeline.next_seqno to .seqno 2016-11-25 07:01:11 +00:00
i915_gem_userptr.c drm/i915: Make GEM object alloc/free and stolen created take dev_priv 2016-12-01 18:00:15 +00:00
i915_gem.c drm/i915: Reorder phys backing storage release 2016-12-12 12:24:36 +00:00
i915_gem.h drm/i915: allow GEM_BUG_ON expr checking with !DEBUG_GEM 2016-12-05 20:49:17 +00:00
i915_gpu_error.c drm/i915: replace platform flags with a platform enum 2016-12-07 11:58:26 +02:00
i915_guc_reg.h drm/i915/guc: Drop guc2host/host2guc from names 2016-11-25 21:28:57 +00:00
i915_guc_submission.c drm/i915: Make various init functions take dev_priv 2016-12-01 18:01:15 +00:00
i915_ioc32.c
i915_irq.c drm/i915/glk: Reuse broxton code for geminilake 2016-12-02 16:38:56 +02:00
i915_memcpy.c
i915_mm.c
i915_oa_hsw.c drm/i915: Add more Haswell OA metric sets 2016-11-22 14:40:00 +01:00
i915_oa_hsw.h drm/i915: advertise available metrics via sysfs 2016-11-22 14:38:51 +01:00
i915_params.c drm/i915: Use the precomputed value for whether to enable command parsing 2016-11-24 13:52:34 +00:00
i915_params.h drm/i915: Use the precomputed value for whether to enable command parsing 2016-11-24 13:52:34 +00:00
i915_pci.c drm/i915: distinguish G33 and Pineview from each other 2016-12-07 23:28:33 +02:00
i915_perf.c drm/i915/perf: More documentation hooked to i915.rst 2016-12-09 10:00:45 +01:00
i915_pvinfo.h
i915_reg.h drm/i915/glk: Update Port PLL enable sequence for Geminilkae 2016-12-02 16:41:47 +02:00
i915_suspend.c drm/i915: Make i915_save/restore_state and intel_i2c_reset take dev_priv 2016-12-01 18:01:23 +00:00
i915_sw_fence.c drm/i915: Integrate i915_sw_fence with debugobjects 2016-11-25 13:49:26 +00:00
i915_sw_fence.h drm/i915: Integrate i915_sw_fence with debugobjects 2016-11-25 13:49:26 +00:00
i915_sysfs.c drm/i915: Make i915_destroy_error_state take dev_priv 2016-12-01 18:01:23 +00:00
i915_trace_points.c
i915_trace.h drm/i915: Fix i915_gem_evict_for_vma (soft-pinning) 2016-12-05 20:49:17 +00:00
i915_vgpu.c
i915_vgpu.h
i915_vma.c drm/i915: Tidy i915_gem_valid_gtt_space() 2016-12-05 20:49:17 +00:00
i915_vma.h drm/i915: Convert vm->dev backpointer to vm->i915 2016-11-29 11:38:00 +00:00
intel_acpi.c
intel_atomic_plane.c Merge tag 'drm-misc-next-2016-11-29' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2016-11-30 14:28:20 +10:00
intel_atomic.c
intel_audio.c drm/i915/audio: extend audio sync rate support for DP MST 2016-12-02 16:20:48 +02:00
intel_bios.c drm/i915: Parse panel backlight controller from VBT 2016-12-12 17:22:08 +02:00
intel_bios.h drm/i915/dsi: Fix swapping of MIPI_SEQ_DEASSERT_RESET / MIPI_SEQ_ASSERT_RESET 2016-12-07 19:37:22 +02:00
intel_breadcrumbs.c drm/i915: Add a warning on shutdown if signal threads still active 2016-11-21 11:49:06 +00:00
intel_color.c drm/i915: Assorted INTEL_INFO(dev) cleanups 2016-11-17 13:56:35 +00:00
intel_crt.c drm/i915: Pass dev_priv to intel_setup_outputs() 2016-11-25 16:43:24 +02:00
intel_csr.c drm/i915: fix compilation warnings on maybe uninitialized pointers 2016-11-29 11:31:01 +01:00
intel_ddi.c drm/i915/glk: Reuse broxton code for geminilake 2016-12-02 16:38:56 +02:00
intel_device_info.c drm/i915: give G45 and GM45 their own platform enums 2016-12-07 15:19:51 +02:00
intel_display.c drm/i915/gen9: Fix PCODE polling during CDCLK change notification 2016-12-08 22:03:02 +02:00
intel_dp_aux_backlight.c
intel_dp_link_training.c
intel_dp_mst.c drm/i915: Validate mode against max. link data rate for DP MST 2016-12-05 16:23:18 +02:00
intel_dp.c drm/i915: Find fallback link rate/lane count 2016-12-13 16:31:35 +02:00
intel_dpio_phy.c drm/i915: Only poll DW3_A when init DDI PHY for ports B and C. 2016-12-02 12:16:25 -08:00
intel_dpll_mgr.c drm/i915/glk: Update Port PLL enable sequence for Geminilkae 2016-12-02 16:41:47 +02:00
intel_dpll_mgr.h
intel_drv.h drm/i915: Find fallback link rate/lane count 2016-12-13 16:31:35 +02:00
intel_dsi_dcs_backlight.c
intel_dsi_panel_vbt.c drm/i915/bxt: add bxt dsi gpio element support 2016-12-13 14:49:15 +02:00
intel_dsi_pll.c drm/i915/glk: Reuse broxton code for geminilake 2016-12-02 16:38:56 +02:00
intel_dsi.c drm/i915/glk: Reuse broxton code for geminilake 2016-12-02 16:38:56 +02:00
intel_dsi.h
intel_dvo.c drm/i915: Pass dev_priv to intel_setup_outputs() 2016-11-25 16:43:24 +02:00
intel_engine_cs.c drm/i915: Make various init functions take dev_priv 2016-12-01 18:01:15 +00:00
intel_fbc.c drm/i915/fbc: convert intel_fbc.c to use INTEL_GEN() 2016-11-14 14:00:29 -02:00
intel_fbdev.c Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued 2016-12-05 09:52:17 +01:00
intel_fifo_underrun.c drm/i915: Always use intel_get_crtc_for_pipe() 2016-11-01 16:40:38 +02:00
intel_frontbuffer.c
intel_frontbuffer.h drm/i915: Move frontbuffer CS write tracking from ggtt vma to object 2016-11-18 11:15:59 +00:00
intel_guc_fwif.h drm/i915/guc: Drop comment on fwif autogeneration 2016-12-07 07:10:21 +00:00
intel_guc_loader.c drm/i915: Fix kerneldoc for intel_guc_fini 2016-12-02 09:55:46 +00:00
intel_gvt.c
intel_gvt.h
intel_hangcheck.c drm/i915: Disable hangcheck when wedged 2016-11-22 17:42:17 +00:00
intel_hdmi.c drm/i915/glk: Reuse broxton code for geminilake 2016-12-02 16:38:56 +02:00
intel_hotplug.c drm/i915: More assorted dev_priv cleanups 2016-11-11 14:58:26 +00:00
intel_i2c.c drm/i915: add some more "i" in platform names for consistency 2016-12-07 15:19:31 +02:00
intel_lrc.c drm/i915/execlists: Use list_safe_reset_next() instead of opencoding 2016-12-05 20:49:17 +00:00
intel_lrc.h drm/i915: Make various init functions take dev_priv 2016-12-01 18:01:15 +00:00
intel_lspcon.c drm/i915/lspcon: Remove unused force change mode parameter 2016-11-23 13:32:01 +02:00
intel_lvds.c drm/i915: Pass dev_priv to intel_setup_outputs() 2016-11-25 16:43:24 +02:00
intel_mocs.c drm/i915/glk: Reuse broxton code for geminilake 2016-12-02 16:38:56 +02:00
intel_mocs.h drm/i915: Make various init functions take dev_priv 2016-12-01 18:01:15 +00:00
intel_modes.c
intel_opregion.c drm/i915/opregion: fill in the CADL from connector list, not DIDL 2016-11-17 12:45:59 +02:00
intel_overlay.c drm/i915: add some more "i" in platform names for consistency 2016-12-07 15:19:31 +02:00
intel_panel.c drm/i915: Parse panel backlight controller from VBT 2016-12-12 17:22:08 +02:00
intel_pipe_crc.c drm/i915/debugfs: Move out pipe CRC code 2016-12-13 09:41:24 +01:00
intel_pm.c drm/i915/gen9: Fix PCODE polling during SAGV disabling 2016-12-08 22:47:49 +02:00
intel_psr.c drm/i915: Fix intel_psr_init() kerneldoc 2016-12-02 09:54:05 +02:00
intel_renderstate_gen6.c
intel_renderstate_gen7.c
intel_renderstate_gen8.c
intel_renderstate_gen9.c
intel_renderstate.h
intel_ringbuffer.c drm/i915: add some more "i" in platform names for consistency 2016-12-07 15:19:31 +02:00
intel_ringbuffer.h drm/i915: Decouple hang detection from hangcheck period 2016-11-21 14:36:40 +02:00
intel_runtime_pm.c drm/i915/dsi: Do not clear DPOUNIT_CLOCK_GATE_DISABLE from vlv_init_display_clock_gating 2016-12-05 20:45:58 +02:00
intel_sdvo_regs.h
intel_sdvo.c drm/i915: distinguish G33 and Pineview from each other 2016-12-07 23:28:33 +02:00
intel_sideband.c
intel_sprite.c Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued 2016-12-05 09:52:17 +01:00
intel_tv.c drm/i915: Pass dev_priv to intel_setup_outputs() 2016-11-25 16:43:24 +02:00
intel_uc.c drm/i915/guc: Init send_mutex in intel_uc_init_early() 2016-11-25 21:42:36 +00:00
intel_uc.h drm/i915: Make various init functions take dev_priv 2016-12-01 18:01:15 +00:00
intel_uncore.c drm/i915: Catch non-existent registers in find_fw_domain 2016-12-08 09:37:23 +02:00
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: rename preliminary_hw_support to alpha_support 2016-11-14 15:33:27 +02:00
Kconfig.debug drm/i915: Enable swfence debugobject support for i915.ko 2016-12-05 20:49:17 +00:00
Makefile drm/i915/debugfs: Move out pipe CRC code 2016-12-13 09:41:24 +01:00