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OpenCloudOS-Kernel/drivers/gpu/drm/i915
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Chris Wilson 32a1963148 drm/i915/gtt: Serialise both updates to PDE and our shadow 
Currently, we perform a locked update of the shadow entry when
allocating a page directory entry such that if two clients are
concurrently allocating neighbouring ranges we only insert one new entry
for the pair of them. However, we also need to serialise both clients
wrt to the actual entry in the HW table, or else we may allow one client
or even a third client to proceed ahead of the HW write. My handwave
before was that under the _pathological_ condition we would see the
scratch entry instead of the expected entry, causing a temporary
glitch. That starvation condition will eventually show up in practice, so
fix it.

The reason for the previous cheat was to avoid having to free the extra
allocation while under the spinlock. Now, we keep the extra entry
allocated until the end instead.

v2: Fix error paths for gen6

Fixes: 1d1b5490b9 ("drm/i915/gtt: Replace struct_mutex serialisation for allocation")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190617140426.7203-1-chris@chris-wilson.co.uk
 		2019-06-17 20:53:03 +01:00
..
display drm/i915: move modesetting core code under display/ 2019-06-17 11:48:32 +03:00
gem drm/i915/gtt: Use a common type for page directories 2019-06-17 16:30:54 +03:00
gt drm/i915/gtt: Use a common type for page directories 2019-06-17 16:30:54 +03:00
gvt drm/i915/gtt: Use a common type for page directories 2019-06-17 16:30:54 +03:00
selftests drm/i915: Replace engine->timeline with a plain list 2019-06-14 19:03:40 +01:00
.gitignore drm/i915: add Makefile magic for testing headers are self-contained 2019-04-04 19:49:42 +03:00
Kconfig drm/i915: add force_probe module parameter to replace alpha_support 2019-05-31 16:20:30 +03:00
Kconfig.debug drm/i915: Enable refcount debugging for default debug levels 2019-06-14 12:16:08 +01:00
Kconfig.profile drm/i915: Add a label for config DRM_I915_SPIN_REQUEST 2019-06-12 11:18:55 +01:00
Makefile drm/i915: move modesetting core code under display/ 2019-06-17 11:48:32 +03:00
Makefile.header-test drm/i915: move modesetting core code under display/ 2019-06-17 11:48:32 +03:00
i915_active.c drm/i915: Keep contexts pinned until after the next kernel context switch 2019-06-14 19:03:32 +01:00
i915_active.h drm/i915: Keep contexts pinned until after the next kernel context switch 2019-06-14 19:03:32 +01:00
i915_active_types.h drm/i915: Keep contexts pinned until after the next kernel context switch 2019-06-14 19:03:32 +01:00
i915_cmd_parser.c drm/i915: Move GEM object domain management from struct_mutex to local 2019-05-28 12:45:29 +01:00
i915_debugfs.c drm/i915: no need to check return value of debugfs_create functions 2019-06-17 15:53:08 +03:00
i915_debugfs.h drm/i915: extract i915_debugfs.h from i915_drv.h 2019-05-03 10:06:40 +03:00
i915_drv.c drm/i915: move modesetting core code under display/ 2019-06-17 11:48:32 +03:00
i915_drv.h drm/i915/dmc: add support to load dmc_header version 3 2019-06-17 12:32:32 -07:00
i915_fixed.h drm/i915: Use mul_u32_u32() more 2019-05-03 20:09:51 +03:00
i915_gem.c drm/i915: move modesetting core code under display/ 2019-06-17 11:48:32 +03:00
i915_gem.h drm/i915: Load balancing across a virtual engine 2019-05-22 08:40:38 +01:00
i915_gem_batch_pool.c drm/i915: Drop the deferred active reference 2019-05-28 12:45:29 +01:00
i915_gem_batch_pool.h drm/i915: Split GEM object type definition to its own header 2019-05-28 12:45:29 +01:00
i915_gem_evict.c drm/i915: Move more GEM objects under gem/ 2019-05-28 12:45:29 +01:00
i915_gem_fence_reg.c drm/i915: make intel_wakeref work on the rpm struct 2019-06-14 15:58:33 +01:00
i915_gem_fence_reg.h drm/i915: Move fence register tracking from i915->mm to ggtt 2019-06-13 09:37:39 +01:00
i915_gem_gtt.c drm/i915/gtt: Serialise both updates to PDE and our shadow 2019-06-17 20:53:03 +01:00
i915_gem_gtt.h drm/i915/gtt: Use a common type for page directories 2019-06-17 16:30:54 +03:00
i915_gem_render_state.c drm/i915: Drop the deferred active reference 2019-05-28 12:45:29 +01:00
i915_gem_render_state.h
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i915_globals.c drm/i915: Move more GEM objects under gem/ 2019-05-28 12:45:29 +01:00
i915_globals.h drm/i915: Move over to intel_context_lookup() 2019-03-08 13:59:52 +00:00
i915_gpu_error.c drm/i915: move modesetting core code under display/ 2019-06-17 11:48:32 +03:00
i915_gpu_error.h drm/i915: Invert the GEM wakeref hierarchy 2019-04-24 22:26:49 +01:00
i915_ioc32.c
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i915_irq.c drm/i915: move modesetting core code under display/ 2019-06-17 11:48:32 +03:00
i915_irq.h drm/i915/guc: Correctly handle GuC interrupts on Gen11 2019-05-28 10:07:17 +01:00
i915_memcpy.c
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i915_mm.c
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i915_oa_bdw.c
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i915_oa_bdw.h
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i915_oa_bxt.c
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i915_oa_bxt.h
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i915_oa_cflgt2.c
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i915_oa_cflgt2.h
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i915_oa_cflgt3.c
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i915_oa_cflgt3.h
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i915_oa_chv.c
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i915_oa_chv.h
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i915_oa_cnl.c
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i915_oa_cnl.h
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i915_oa_glk.c
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i915_oa_glk.h
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i915_oa_hsw.c
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i915_oa_hsw.h
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i915_oa_icl.c
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i915_oa_icl.h
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i915_oa_kblgt2.c
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i915_oa_kblgt2.h
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i915_oa_kblgt3.c
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i915_oa_kblgt3.h
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i915_oa_sklgt2.c
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i915_oa_sklgt2.h
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i915_oa_sklgt3.c
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i915_oa_sklgt3.h
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i915_oa_sklgt4.c
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i915_oa_sklgt4.h
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i915_params.c drm/i915: add force_probe module parameter to replace alpha_support 2019-05-31 16:20:30 +03:00
i915_params.h drm/i915: add force_probe module parameter to replace alpha_support 2019-05-31 16:20:30 +03:00
i915_pci.c drm/i915: move modesetting core code under display/ 2019-06-17 11:48:32 +03:00
i915_perf.c drm/i915: update rpm_get/put to use the rpm structure 2019-06-14 15:58:33 +01:00
i915_pmu.c drm/i915: update with_intel_runtime_pm to use the rpm structure 2019-06-14 15:58:33 +01:00
i915_pmu.h
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i915_priolist_types.h drm/i915: Downgrade NEWCLIENT to non-preemptive 2019-05-20 18:28:22 +03:00
i915_pvinfo.h drm/i915: Mark up vGPU support for full-ppgtt 2019-03-15 09:04:54 +00:00
i915_query.c Revert "drm/i915: Expand subslice mask" 2019-05-29 17:18:18 +03:00
i915_query.h
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i915_reg.h drm/i915/icl: Add register definitions for Multi Segmented gamma 2019-06-17 10:26:47 +02:00
i915_request.c drm/i915: Replace engine->timeline with a plain list 2019-06-14 19:03:40 +01:00
i915_request.h drm/i915: Replace engine->timeline with a plain list 2019-06-14 19:03:40 +01:00
i915_scatterlist.c drm/i915: Pull scatterlist utils out of i915_gem.h 2019-05-28 12:45:29 +01:00
i915_scatterlist.h drm/i915: Pull scatterlist utils out of i915_gem.h 2019-05-28 12:45:29 +01:00
i915_scheduler.c drm/i915: Replace engine->timeline with a plain list 2019-06-14 19:03:40 +01:00
i915_scheduler.h drm/i915: Only reschedule the submission tasklet if preemption is possible 2019-05-07 17:40:20 +01:00
i915_scheduler_types.h drm/i915: Bump signaler priority on adding a waiter 2019-05-20 18:28:04 +03:00
i915_selftest.h
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i915_suspend.c drm/i915: move modesetting core code under display/ 2019-06-17 11:48:32 +03:00
i915_sw_fence.c drm/i915: Allow contexts to share a single timeline across all engines 2019-03-22 13:12:38 +00:00
i915_sw_fence.h drm/i915: Allow contexts to share a single timeline across all engines 2019-03-22 13:12:38 +00:00
i915_syncmap.c
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i915_syncmap.h
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i915_sysfs.c drm/i915: update with_intel_runtime_pm to use the rpm structure 2019-06-14 15:58:33 +01:00
i915_timeline.c drm/i915: Replace engine->timeline with a plain list 2019-06-14 19:03:40 +01:00
i915_timeline.h drm/i915: Replace engine->timeline with a plain list 2019-06-14 19:03:40 +01:00
i915_timeline_types.h drm/i915: Replace engine->timeline with a plain list 2019-06-14 19:03:40 +01:00
i915_trace.h drm/i915: Pull kref into i915_address_space 2019-06-11 11:44:24 +01:00
i915_trace_points.c
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i915_user_extensions.c drm/i915: Introduce the i915_user_extension_method 2019-03-22 13:12:30 +00:00
i915_user_extensions.h drm/i915: Introduce the i915_user_extension_method 2019-03-22 13:12:30 +00:00
i915_utils.h drm/i915: Move GEM object waiting to its own file 2019-05-28 12:45:29 +01:00
i915_vgpu.c drm/i915: rename raw reg access functions 2019-03-26 19:15:15 +00:00
i915_vgpu.h drm/i915: Mark up vGPU support for full-ppgtt 2019-03-15 09:04:54 +00:00
i915_vma.c drm/i915: move modesetting core code under display/ 2019-06-17 11:48:32 +03:00
i915_vma.h drm/i915: Move fence register tracking from i915->mm to ggtt 2019-06-13 09:37:39 +01:00
intel_csr.c drm/i915/dmc: protect against loading wrong firmware 2019-06-17 12:32:34 -07:00
intel_csr.h drm/i915/csr: move CSR version macros to intel_csr.h 2019-05-03 10:06:25 +03:00
intel_device_info.c drm/i915: Kill INTEL_SUBPLATFORM_AML 2019-06-12 14:51:26 +03:00
intel_device_info.h drm/i915: move modesetting core code under display/ 2019-06-17 11:48:32 +03:00
intel_drv.h drm/i915: move and rename i915_runtime_pm 2019-06-14 15:58:33 +01:00
intel_guc.c drm/i915: Make GuC GGTT reservation work on ggtt 2019-06-11 14:40:15 +01:00
intel_guc.h drm/i915: Make GuC GGTT reservation work on ggtt 2019-06-11 14:40:15 +01:00
intel_guc_ads.c drm/i915/guc: Reset GuC ADS during sanitize 2019-05-28 10:07:05 +01:00
intel_guc_ads.h drm/i915/guc: Reset GuC ADS during sanitize 2019-05-28 10:07:05 +01:00
intel_guc_ct.c drm/i915/guc: always use Command Transport Buffers 2019-06-09 11:21:33 +01:00
intel_guc_ct.h drm/i915/uc: Stop talking with GuC when resetting 2019-05-23 21:58:36 +01:00
intel_guc_fw.c drm/i915/guc: Define GuC firmware version for Icelake 2019-05-28 10:07:22 +01:00
intel_guc_fw.h
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intel_guc_fwif.h drm/i915: fix documentation build warnings 2019-06-06 11:13:20 +03:00
intel_guc_log.c drm/i915: update with_intel_runtime_pm to use the rpm structure 2019-06-14 15:58:33 +01:00
intel_guc_log.h
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intel_guc_reg.h drm/i915/guc: Correctly handle GuC interrupts on Gen11 2019-05-28 10:07:17 +01:00
intel_guc_submission.c drm/i915: Replace engine->timeline with a plain list 2019-06-14 19:03:40 +01:00
intel_guc_submission.h drm/i915: Move GraphicsTechnology files under gt/ 2019-04-24 21:01:46 +01:00
intel_gvt.c
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intel_gvt.h
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intel_huc.c drm/i915: update with_intel_runtime_pm to use the rpm structure 2019-06-14 15:58:33 +01:00
intel_huc.h drm/i915/huc: New HuC status register for Gen11 2019-05-28 10:07:13 +01:00
intel_huc_fw.c drm/i915/huc: Define HuC firmware version for Icelake 2019-05-28 10:07:23 +01:00
intel_huc_fw.h
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intel_pm.c drm/i915: move modesetting core code under display/ 2019-06-17 11:48:32 +03:00
intel_pm.h drm/i915: move pm related declarations to intel_pm.h 2019-06-10 10:29:17 +03:00
intel_renderstate.h
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intel_renderstate_gen6.c
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intel_renderstate_gen7.c
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intel_renderstate_gen8.c
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intel_renderstate_gen9.c
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intel_runtime_pm.c drm/i915: update rpm_get/put to use the rpm structure 2019-06-14 15:58:33 +01:00
intel_runtime_pm.h drm/i915: move modesetting core code under display/ 2019-06-17 11:48:32 +03:00
intel_sideband.c drm/i915: Make sandybridge_pcode_read() deal with the second data register 2019-05-27 20:51:48 +03:00
intel_sideband.h drm/i915: Make sandybridge_pcode_read() deal with the second data register 2019-05-27 20:51:48 +03:00
intel_uc.c drm/i915: update with_intel_runtime_pm to use the rpm structure 2019-06-14 15:58:33 +01:00
intel_uc.h drm/i915/guc: Fix runtime suspend 2019-05-03 08:38:37 +01:00
intel_uc_fw.c drm/i915: Move GEM object domain management from struct_mutex to local 2019-05-28 12:45:29 +01:00
intel_uc_fw.h drm/i915/uc: Place uC firmware in upper range of GGTT 2019-04-20 08:19:32 +01:00
intel_uncore.c drm/i915: update with_intel_runtime_pm to use the rpm structure 2019-06-14 15:58:33 +01:00
intel_uncore.h drm/i915: move and rename i915_runtime_pm 2019-06-14 15:58:33 +01:00
intel_wakeref.c drm/i915: make intel_wakeref work on the rpm struct 2019-06-14 15:58:33 +01:00
intel_wakeref.h drm/i915: make intel_wakeref work on the rpm struct 2019-06-14 15:58:33 +01:00
intel_wopcm.c drm/i915/wopcm: update default size for gen11+ 2019-06-09 11:28:32 +01:00
intel_wopcm.h drm/i915/guc: Move intel_guc_reserved_gtt_size to intel_wopcm_guc_size 2019-06-11 14:40:14 +01:00