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1e016a8693
A danger encountered when resetting the seqno (using debugfs/i915_next_seqno) is that as we change the breadcrumb stored in the HWSP, it may be inspected by the signaler thread leading to confusion in our sanity checks. <0> [136.331342] i915/sig-347 3..s1 136336154us : execlists_submission_tasklet: rcs0 awake?=1, active=5 <0> [136.331373] i915/sig-347 3d.s2 136336155us : process_csb: rcs0 cs-irq head=5, tail=0 <0> [136.331402] i915/sig-347 3d.s2 136336155us : process_csb: rcs0 csb[0]: status=0x00000018:0x00000002, active=0x5 <0> [136.331434] i915/sig-347 3d.s2 136336156us : process_csb: rcs0 out[0]: ctx=2.1, global=219 (fence 46:8455) (current 219), prio=0 <0> [136.331466] i915/sig-347 3d.s2 136336156us : process_csb: rcs0 completed ctx=2 <0> [136.332027] gem_exec-1049 0.... 136336246us : reset_all_global_seqno.part.5: rcs0 seqno 219 (current 219) -> -43 <0> [136.332056] gem_exec-1049 0.... 136336251us : reset_all_global_seqno.part.5: bcs0 seqno 183 (current 183) -> -43 <0> [136.332085] gem_exec-1049 0.... 136336255us : reset_all_global_seqno.part.5: vcs0 seqno 191 (current 191) -> -43 <0> [136.332114] gem_exec-1049 0.... 136336259us : reset_all_global_seqno.part.5: vcs1 seqno 180 (current 180) -> -43 <0> [136.332143] gem_exec-1049 0.... 136336262us : reset_all_global_seqno.part.5: vecs0 seqno 212 (current 212) -> -43 <0> [136.332174] i915/sig-347 3.... 136336280us : intel_breadcrumbs_signaler: intel_breadcrumbs_signaler:673 GEM_BUG_ON(!i915_request_completed(rq)) Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181024104939.2861-1-chris@chris-wilson.co.uk |
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|---|---|---|
| .. | ||
| gvt | ||
| selftests | ||
| dvo.h | ||
| dvo_ch7xxx.c | ||
| dvo_ch7017.c | ||
| dvo_ivch.c | ||
| dvo_ns2501.c | ||
| dvo_sil164.c | ||
| dvo_tfp410.c | ||
| i915_cmd_parser.c | ||
| i915_debugfs.c | ||
| i915_drv.c | ||
| i915_drv.h | ||
| i915_gem.c | ||
| i915_gem.h | ||
| i915_gem_batch_pool.c | ||
| i915_gem_batch_pool.h | ||
| i915_gem_clflush.c | ||
| i915_gem_clflush.h | ||
| i915_gem_context.c | ||
| i915_gem_context.h | ||
| i915_gem_dmabuf.c | ||
| i915_gem_evict.c | ||
| i915_gem_execbuffer.c | ||
| i915_gem_fence_reg.c | ||
| i915_gem_fence_reg.h | ||
| i915_gem_gtt.c | ||
| i915_gem_gtt.h | ||
| i915_gem_internal.c | ||
| i915_gem_object.c | ||
| i915_gem_object.h | ||
| i915_gem_render_state.c | ||
| i915_gem_render_state.h | ||
| i915_gem_shrinker.c | ||
| i915_gem_stolen.c | ||
| i915_gem_tiling.c | ||
| i915_gem_userptr.c | ||
| i915_gemfs.c | ||
| i915_gemfs.h | ||
| i915_gpu_error.c | ||
| i915_gpu_error.h | ||
| i915_ioc32.c | ||
| i915_irq.c | ||
| i915_memcpy.c | ||
| i915_mm.c | ||
| i915_oa_bdw.c | ||
| i915_oa_bdw.h | ||
| i915_oa_bxt.c | ||
| i915_oa_bxt.h | ||
| i915_oa_cflgt2.c | ||
| i915_oa_cflgt2.h | ||
| i915_oa_cflgt3.c | ||
| i915_oa_cflgt3.h | ||
| i915_oa_chv.c | ||
| i915_oa_chv.h | ||
| i915_oa_cnl.c | ||
| i915_oa_cnl.h | ||
| i915_oa_glk.c | ||
| i915_oa_glk.h | ||
| i915_oa_hsw.c | ||
| i915_oa_hsw.h | ||
| i915_oa_icl.c | ||
| i915_oa_icl.h | ||
| i915_oa_kblgt2.c | ||
| i915_oa_kblgt2.h | ||
| i915_oa_kblgt3.c | ||
| i915_oa_kblgt3.h | ||
| i915_oa_sklgt2.c | ||
| i915_oa_sklgt2.h | ||
| i915_oa_sklgt3.c | ||
| i915_oa_sklgt3.h | ||
| i915_oa_sklgt4.c | ||
| i915_oa_sklgt4.h | ||
| i915_params.c | ||
| i915_params.h | ||
| i915_pci.c | ||
| i915_perf.c | ||
| i915_pmu.c | ||
| i915_pmu.h | ||
| i915_pvinfo.h | ||
| i915_query.c | ||
| i915_query.h | ||
| i915_reg.h | ||
| i915_request.c | ||
| i915_request.h | ||
| i915_scheduler.c | ||
| i915_scheduler.h | ||
| i915_selftest.h | ||
| i915_suspend.c | ||
| i915_sw_fence.c | ||
| i915_sw_fence.h | ||
| i915_syncmap.c | ||
| i915_syncmap.h | ||
| i915_sysfs.c | ||
| i915_timeline.c | ||
| i915_timeline.h | ||
| i915_trace.h | ||
| i915_trace_points.c | ||
| i915_utils.h | ||
| i915_vgpu.c | ||
| i915_vgpu.h | ||
| i915_vma.c | ||
| i915_vma.h | ||
| icl_dsi.c | ||
| intel_acpi.c | ||
| intel_atomic.c | ||
| intel_atomic_plane.c | ||
| intel_audio.c | ||
| intel_bios.c | ||
| intel_bios.h | ||
| intel_breadcrumbs.c | ||
| intel_cdclk.c | ||
| intel_color.c | ||
| intel_connector.c | ||
| intel_crt.c | ||
| intel_csr.c | ||
| intel_ddi.c | ||
| intel_device_info.c | ||
| intel_device_info.h | ||
| intel_display.c | ||
| intel_display.h | ||
| intel_dp.c | ||
| intel_dp_aux_backlight.c | ||
| intel_dp_link_training.c | ||
| intel_dp_mst.c | ||
| intel_dpio_phy.c | ||
| intel_dpll_mgr.c | ||
| intel_dpll_mgr.h | ||
| intel_drv.h | ||
| intel_dsi.c | ||
| intel_dsi.h | ||
| intel_dsi_dcs_backlight.c | ||
| intel_dsi_vbt.c | ||
| intel_dvo.c | ||
| intel_engine_cs.c | ||
| intel_fbc.c | ||
| intel_fbdev.c | ||
| intel_fifo_underrun.c | ||
| intel_frontbuffer.c | ||
| intel_frontbuffer.h | ||
| intel_gpu_commands.h | ||
| intel_guc.c | ||
| intel_guc.h | ||
| intel_guc_ads.c | ||
| intel_guc_ads.h | ||
| intel_guc_ct.c | ||
| intel_guc_ct.h | ||
| intel_guc_fw.c | ||
| intel_guc_fw.h | ||
| intel_guc_fwif.h | ||
| intel_guc_log.c | ||
| intel_guc_log.h | ||
| intel_guc_reg.h | ||
| intel_guc_submission.c | ||
| intel_guc_submission.h | ||
| intel_gvt.c | ||
| intel_gvt.h | ||
| intel_hangcheck.c | ||
| intel_hdcp.c | ||
| intel_hdmi.c | ||
| intel_hotplug.c | ||
| intel_huc.c | ||
| intel_huc.h | ||
| intel_huc_fw.c | ||
| intel_huc_fw.h | ||
| intel_i2c.c | ||
| intel_lpe_audio.c | ||
| intel_lrc.c | ||
| intel_lrc.h | ||
| intel_lrc_reg.h | ||
| intel_lspcon.c | ||
| intel_lvds.c | ||
| intel_mocs.c | ||
| intel_mocs.h | ||
| intel_opregion.c | ||
| intel_opregion.h | ||
| intel_overlay.c | ||
| intel_panel.c | ||
| intel_pipe_crc.c | ||
| intel_pm.c | ||
| intel_psr.c | ||
| intel_quirks.c | ||
| intel_renderstate.h | ||
| intel_renderstate_gen6.c | ||
| intel_renderstate_gen7.c | ||
| intel_renderstate_gen8.c | ||
| intel_renderstate_gen9.c | ||
| intel_ringbuffer.c | ||
| intel_ringbuffer.h | ||
| intel_runtime_pm.c | ||
| intel_sdvo.c | ||
| intel_sdvo_regs.h | ||
| intel_sideband.c | ||
| intel_sprite.c | ||
| intel_tv.c | ||
| intel_uc.c | ||
| intel_uc.h | ||
| intel_uc_fw.c | ||
| intel_uc_fw.h | ||
| intel_uncore.c | ||
| intel_uncore.h | ||
| intel_vbt_defs.h | ||
| intel_wopcm.c | ||
| intel_wopcm.h | ||
| intel_workarounds.c | ||
| intel_workarounds.h | ||
| Kconfig | ||
| Kconfig.debug | ||
| Makefile | ||
| vlv_dsi.c | ||
| vlv_dsi_pll.c | ||