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bb9ca240dc
linux_dsm_epyc7002/drivers/gpu/drm/i915
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Ville Syrjälä bb9ca240dc drm/i915: Lock gmbus/aux mutexes while changing cdclk 
gmbus/aux may be clocked by cdclk, thus we should make sure no
transfers are ongoing while the cdclk frequency is being changed.
We do that by simply grabbing all the gmbus/aux mutexes. No one
else should be holding any more than one of those at a time so
the lock ordering here shouldn't matter.

v2: Use mutex_lock_nest_lock() (Chris)

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200302174442.5803-1-ville.syrjala@linux.intel.com
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2020-03-09 22:28:33 +02:00
..
display drm/i915: Lock gmbus/aux mutexes while changing cdclk 2020-03-09 22:28:33 +02:00
gem drm/i915/gem: Limit struct_mutex to eb_reserve 2020-03-06 10:58:05 +00:00
gt drm/i915/gt: Mark up intel_rps.active for racy reads 2020-03-09 18:30:20 +00:00
gvt drm/i915/gvt: Inlcude intel_gvt.h where needed 2020-03-04 10:04:50 +00:00
oa
selftests drm/i915/selftests: Apply a heavy handed flush to i915_active 2020-03-07 00:05:54 +00:00
.gitignore
i915_active_types.h
i915_active.c drm/i915: Skip barriers inside waits 2020-02-28 09:24:29 +00:00
i915_active.h drm/i915/gt: Acquire ce->active before ce->pin_count/ce->pin_mutex 2020-02-12 13:24:45 +02:00
i915_buddy.c drm/i915/buddy: avoid double list_add 2020-03-06 14:33:08 +00:00
i915_buddy.h
i915_cmd_parser.c drm/i915/cmd_parser: conversion to struct drm_device logging macros. 2020-02-04 11:29:40 +02:00
i915_debugfs_params.c drm/i915: Include the debugfs params header for its own definition 2020-01-17 13:00:16 +00:00
i915_debugfs_params.h
i915_debugfs.c drm/i915/guc: Kill USES_GUC_SUBMISSION macro 2020-02-20 17:48:03 +00:00
i915_debugfs.h drm/i915: split out display debugfs to a separate file 2020-02-14 13:26:51 +02:00
i915_drv.c drm/i915/gvt: only include intel_gvt.h where needed 2020-03-03 17:47:07 +02:00
i915_drv.h drm/i915/hotplug: Use phy to get the hpd_pin instead of the port (v5) 2020-03-06 14:31:14 -08:00
i915_fixed.h
i915_gem_evict.c drm/i915: Drop inspection of execbuf flags during evict 2020-03-03 21:52:51 +00:00
i915_gem_fence_reg.c drm/i915/vgpu: improve vgpu abstractions 2020-03-03 17:46:54 +02:00
i915_gem_fence_reg.h
i915_gem_gtt.c drm/i915: significantly reduce the use of <drm/i915_drm.h> 2020-02-27 08:35:09 +02:00
i915_gem_gtt.h
i915_gem.c drm/i915: significantly reduce the use of <drm/i915_drm.h> 2020-02-27 08:35:09 +02:00
i915_gem.h
i915_getparam.c
i915_globals.c
i915_globals.h
i915_gpu_error.c drm/i915: Update drm/i915 bug filing URL 2020-02-17 11:16:05 +02:00
i915_gpu_error.h drm/i915: Track hw reported context runtime 2020-02-16 15:16:22 +00:00
i915_ioc32.c drm/i915: add i915_ioc32.h for compat 2020-03-02 13:32:37 +02:00
i915_ioc32.h drm/i915: add i915_ioc32.h for compat 2020-03-02 13:32:37 +02:00
i915_irq.c drm/i915/crc: move pipe_crc from drm_i915_private to intel_crtc 2020-03-02 12:58:26 +02:00
i915_irq.h
i915_memcpy.c
i915_memcpy.h
i915_mm.c
i915_params.c drm/i915: Remove 'prefault_disable' modparam 2020-01-27 11:45:35 +00:00
i915_params.h drm/i915: Mark i915.reset as unsigned 2020-02-05 18:51:52 +00:00
i915_pci.c drm/i915: significantly reduce the use of <drm/i915_drm.h> 2020-02-27 08:35:09 +02:00
i915_perf_types.h drm/i915/perf: Reintroduce wait on OA configuration completion 2020-03-02 20:34:18 +00:00
i915_perf.c drm/i915/perf: Reintroduce wait on OA configuration completion 2020-03-02 20:34:18 +00:00
i915_perf.h
i915_pmu.c drm/i915/pmu: Avoid using globals for PMU events 2020-02-21 17:31:15 +00:00
i915_pmu.h drm/i915: significantly reduce the use of <drm/i915_drm.h> 2020-02-27 08:35:09 +02:00
i915_priolist_types.h
i915_pvinfo.h
i915_query.c
i915_query.h
i915_reg.h drm/i915: Fix readout of PIPEGCMAX 2020-03-09 22:11:36 +02:00
i915_request.c drm/i915: Mark racy read of intel_engine_cs.saturated 2020-03-09 17:08:52 +00:00
i915_request.h drm/i915: Mark up unlocked update of i915_request.hwsp_seqno 2020-03-09 18:23:59 +00:00
i915_scatterlist.c
i915_scatterlist.h
i915_scheduler_types.h
i915_scheduler.c drm/i915/execlsts: Mark up racy inspection of current i915_request priority 2020-03-09 18:24:13 +00:00
i915_scheduler.h
i915_selftest.h
i915_suspend.c drm/i915: significantly reduce the use of <drm/i915_drm.h> 2020-02-27 08:35:09 +02:00
i915_suspend.h
i915_sw_fence_work.c
i915_sw_fence_work.h
i915_sw_fence.c drm/i915/gem: Don't leak non-persistent requests on changing engines 2020-02-11 21:58:39 +00:00
i915_sw_fence.h drm/i915/gem: Don't leak non-persistent requests on changing engines 2020-02-11 21:58:39 +00:00
i915_switcheroo.c drm: Avoid drm_global_mutex for simple inc/dec of dev->open_count 2020-01-24 17:41:34 +00:00
i915_switcheroo.h
i915_syncmap.c
i915_syncmap.h
i915_sysfs.c drm/i915/gt: Expose engine properties via sysfs 2020-02-28 22:03:19 +00:00
i915_sysfs.h
i915_trace_points.c
i915_trace.h drm/i915/trace: i915_request.prio is a signed value 2020-01-28 15:53:36 +00:00
i915_user_extensions.c
i915_user_extensions.h
i915_utils.c drm/i915: Force DPCD backlight mode on X1 Extreme 2nd Gen 4K AMOLED panel 2020-03-03 20:34:32 -05:00
i915_utils.h drm/i915/gt: Mark up racy check of last list element 2020-03-09 18:23:59 +00:00
i915_vgpu.c drm/i915/vgpu: improve vgpu abstractions 2020-03-03 17:46:54 +02:00
i915_vgpu.h drm/i915/vgpu: improve vgpu abstractions 2020-03-03 17:46:54 +02:00
i915_vma_types.h drm/i915/gem: Extract transient execbuf flags from i915_vma 2020-03-03 21:52:51 +00:00
i915_vma.c drm/i915: Drop vma is-closed assertion on insert 2020-03-03 17:30:20 +00:00
i915_vma.h drm/i915: Use the async worker to avoid reclaim tainting the ggtt->mutex 2020-01-30 21:35:43 +00:00
intel_device_info.c drm/i915: significantly reduce the use of <drm/i915_drm.h> 2020-02-27 08:35:09 +02:00
intel_device_info.h drm/i915: Read rawclk_freq earlier 2020-02-19 14:09:18 +00:00
intel_dram.c drm/i915/dram: hide the dram structs better 2020-03-02 13:32:27 +02:00
intel_dram.h drm/i915: split out intel_dram.[ch] from i915_drv.c 2020-02-27 09:16:01 +02:00
intel_gvt.c drm/i915/gvt: make intel_gvt_active internal to intel_gvt 2020-03-03 17:47:03 +02:00
intel_gvt.h
intel_memory_region.c drm/i915: convert to new logging macros in i915/intel_memory_region.c 2020-01-17 17:44:19 +02:00
intel_memory_region.h
intel_pch.c drm/i915: Make WARN* drm specific where drm_priv ptr is available 2020-01-22 17:54:33 +02:00
intel_pch.h
intel_pm.c drm/i915: Implement display w/a 1140 for glk/cnl 2020-03-05 15:53:33 +02:00
intel_pm.h drm/i915: Manipulate DBuf slices properly 2020-02-05 19:19:23 +02:00
intel_region_lmem.c
intel_region_lmem.h
intel_runtime_pm.c
intel_runtime_pm.h
intel_sideband.c drm/i915: Make WARN* drm specific where drm_priv ptr is available 2020-01-22 17:54:33 +02:00
intel_sideband.h
intel_uncore.c drm/i915: Make WARN* drm specific where uncore or stream ptr is available 2020-01-22 17:57:39 +02:00
intel_uncore.h
intel_wakeref.c
intel_wakeref.h
intel_wopcm.c
intel_wopcm.h
Kconfig drm/i915: Update drm/i915 bug filing URL 2020-02-17 11:16:05 +02:00
Kconfig.debug
Kconfig.profile drm/i915/gt: Expose heartbeat interval via sysfs 2020-02-28 22:03:49 +00:00
Kconfig.unstable
Makefile drm/i915/gen7: Clear all EU/L3 residual contexts 2020-03-06 08:59:06 +00:00
vlv_suspend.c drm/i915: switch vlv_suspend to use intel uncore register accessors 2020-02-17 11:29:51 +02:00
vlv_suspend.h drm/i915: split out vlv/chv specific suspend/resume code 2020-02-17 11:29:35 +02:00