AuxXxilium/linux_dsm_epyc7002
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6ec81b8273
linux_dsm_epyc7002/drivers/gpu/drm/i915
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Arnd Bergmann 6ec81b8273 drm/i915/pmu: avoid an maybe-uninitialized warning 
Conditional spinlocks make it hard for gcc and for lockdep to
follow the code flow. This one causes a warning with at least
gcc-9 and higher:

In file included from include/linux/irq.h:14,
                 from drivers/gpu/drm/i915/i915_pmu.c:7:
drivers/gpu/drm/i915/i915_pmu.c: In function 'i915_sample':
include/linux/spinlock.h:289:3: error: 'flags' may be used uninitialized in this function [-Werror=maybe-uninitialized]
  289 |   _raw_spin_unlock_irqrestore(lock, flags); \
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/i915/i915_pmu.c:288:17: note: 'flags' was declared here
  288 |   unsigned long flags;
      |                 ^~~~~

Split out the part between the locks into a separate function
for readability and to let the compiler figure out what the
logic actually is.

Fixes: d79e1bd676 ("drm/i915/pmu: Only use exclusive mmio access for gen7")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20200527140526.1458215-1-arnd@arndb.de
2020-05-27 17:07:24 +01:00
..
display drm/i915/display: Only query DP state of a DDI encoder 2020-05-26 12:53:52 +01:00
gem drm/i915/gem: Suppress some random warnings 2020-05-25 16:45:18 +01:00
gt drm/i915/gt: Clear LOCAL_BIND from shared GGTT on resume 2020-05-27 10:51:57 +01:00
gvt drm/i915: Mark check_shadow_context_ppgtt as maybe unused 2020-05-16 13:41:04 +01:00
selftests drm/i915/selftests: Measure dispatch latency 2020-05-19 15:28:26 +01:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
i915_active_types.h
i915_active.c drm/i915: Allow asynchronous waits on the i915_active barriers 2020-04-06 19:48:06 +01:00
i915_active.h drm/i915: Allow asynchronous waits on the i915_active barriers 2020-04-06 19:48:06 +01:00
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_config.c drm/i915: Replace the hardcoded I915_FENCE_TIMEOUT 2020-05-09 12:57:57 +01:00
i915_debugfs_params.c
i915_debugfs_params.h
i915_debugfs.c drm/i915: Extract i915_cs_timestamp_{ns_to_ticks,tick_to_ns}() 2020-05-14 20:04:02 +03:00
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: Refactor setting dma info to a common helper 2020-04-18 07:49:11 +01:00
i915_drv.h drm/i915: Adjust CDCLK accordingly to our DBuf bw needs 2020-05-21 14:16:16 -07:00
i915_fixed.h
i915_gem_evict.c drm/i915: Handle idling during i915_gem_evict_something busy loops 2020-05-12 13:02:03 +01:00
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 drm/i915: Remove PIN_UPDATE for i915_vma_pin 2020-05-21 17:33:51 +01:00
i915_gem.c drm/i915/gem: Drop cached obj->bind_count 2020-04-02 01:17:39 +01:00
i915_gem.h
i915_getparam.c drm/i915: Store CS timestamp frequency in Hz 2020-05-14 19:59:53 +03:00
i915_globals.c
i915_globals.h
i915_gpu_error.c drm/i915/gt: Keep a no-frills swappable copy of the default context state 2020-04-29 19:02:37 +01:00
i915_gpu_error.h drm/i915: Replace zero-length array with flexible-array 2020-05-09 12:59:23 +01:00
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/ehl: Extend w/a 14010685332 to JSP/MCC 2020-05-21 19:05:11 -07:00
i915_irq.h drm/i915: Convert to CRTC VBLANK callbacks 2020-02-13 13:08:13 +01:00
i915_memcpy.c drm/i915: remove always-defined CONFIG_AS_MOVNTDQA 2020-04-09 00:01:59 +09:00
i915_memcpy.h
i915_mm.c
i915_params.c
i915_params.h drm/i915: Mark i915.reset as unsigned 2020-02-05 18:51:52 +00:00
i915_pci.c drm/i915/rkl: Add RKL platform info and PCI ids 2020-05-19 17:12:22 -07:00
i915_perf_types.h drm/i915/perf: Schedule oa_config after modifying the contexts 2020-03-30 18:20:34 +01:00
i915_perf.c drm/i915: Extract i915_cs_timestamp_{ns_to_ticks,tick_to_ns}() 2020-05-14 20:04:02 +03:00
i915_perf.h
i915_pmu.c drm/i915/pmu: avoid an maybe-uninitialized warning 2020-05-27 17:07:24 +01:00
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 drm/i915: Drop no-semaphore boosting 2020-05-14 06:14:33 +01:00
i915_pvinfo.h
i915_query.c
i915_query.h
i915_reg.h drm/i915/rkl: Limit number of universal planes to 5 2020-05-20 08:35:22 -07:00
i915_request.c drm/i915/gt: Do not schedule normal requests immediately along virtual 2020-05-27 09:07:45 +01:00
i915_request.h drm/i915: Improve execute_cb struct packing 2020-05-26 12:24:28 +01:00
i915_scatterlist.c
i915_scatterlist.h
i915_scheduler_types.h drm/i915: Drop no-semaphore boosting 2020-05-14 06:14:33 +01:00
i915_scheduler.c drm/i915: Don't set queue-priority hint when supressing the reschedule 2020-05-19 15:28:26 +01:00
i915_scheduler.h drm/i915: Mark concurrent submissions with a weak-dependency 2020-05-07 19:49:21 +01:00
i915_selftest.h drm/i915/gem: Implement legacy MI_STORE_DATA_IMM 2020-05-04 15:15:04 +01:00
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 drm/i915: Immediately execute the fenced work 2020-03-25 13:05:04 +00:00
i915_sw_fence_work.h drm/i915: Immediately execute the fenced work 2020-03-25 13:05:04 +00:00
i915_sw_fence.c drm/i915: Tidy awaiting on dma-fences 2020-05-11 12:56:45 +01:00
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/i915/switcheroo: use struct drm_device based logging 2020-04-08 13:49:35 +03:00
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: Avoid setting timer->expires to 0 2020-04-03 16:33:09 +01:00
i915_utils.h drm/i915: be more solid in checking the alignment 2020-03-11 23:12:39 +02:00
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: Remove PIN_UPDATE for i915_vma_pin 2020-05-21 17:33:51 +01:00
i915_vma.h drm/i915/gt: Make fence revocation unequivocal 2020-04-01 23:34:17 +01:00
intel_device_info.c drm/i915/rkl: Limit number of universal planes to 5 2020-05-20 08:35:22 -07:00
intel_device_info.h drm/i915/rkl: Add RKL platform info and PCI ids 2020-05-19 17:12:22 -07:00
intel_dram.c drm/i915/dram: prefer struct drm_device based logging 2020-04-08 13:49:35 +03:00
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
intel_memory_region.h
intel_pch.c drm/i915/rkl: Add PCH support 2020-05-19 17:12:22 -07:00
intel_pch.h
intel_pm.c drm/i915: Fix includes and local vars order 2020-05-22 14:40:35 +01:00
intel_pm.h drm/i915: Fix includes and local vars order 2020-05-22 14:40:35 +01:00
intel_region_lmem.c
intel_region_lmem.h
intel_runtime_pm.c drm/i915/runtime_pm: Prefer drm_WARN* over WARN* 2020-05-19 16:01:40 +03:00
intel_runtime_pm.h
intel_sideband.c drm/i915: Added required new PCode commands 2020-05-05 13:59:55 +03:00
intel_sideband.h
intel_uncore.c drm/i915: Remove unused HAS_FWTABLE macro 2020-05-11 16:57:36 +01:00
intel_uncore.h drm/i915/selftests: Measure the energy consumed while in RC6 2020-03-25 11:33:05 +00:00
intel_wakeref.c drm/i915: Extend intel_wakeref to support delayed puts 2020-03-23 12:51:05 +00:00
intel_wakeref.h drm/i915: Extend intel_wakeref to support delayed puts 2020-03-23 12:51:05 +00:00
intel_wopcm.c drm/i915: Remove cnl pre-prod workarounds 2020-05-04 18:44:52 +03:00
intel_wopcm.h
Kconfig drm/i915: Update drm/i915 bug filing URL 2020-02-17 21:16:45 +02:00
Kconfig.debug
Kconfig.profile drm/i915: Replace the hardcoded I915_FENCE_TIMEOUT 2020-05-09 12:57:57 +01:00
Kconfig.unstable
Makefile drm/i915: Replace the hardcoded I915_FENCE_TIMEOUT 2020-05-09 12:57:57 +01:00
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