diff options
26 files changed, 301 insertions, 149 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c index 555022c0652c..d3a771afb083 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c @@ -2160,12 +2160,6 @@ static int eb_move_to_gpu(struct i915_execbuffer *eb) #ifdef CONFIG_MMU_NOTIFIER if (!err && (eb->args->flags & __EXEC_USERPTR_USED)) { - read_lock(&eb->i915->mm.notifier_lock); - - /* - * count is always at least 1, otherwise __EXEC_USERPTR_USED - * could not have been set - */ for (i = 0; i < count; i++) { struct eb_vma *ev = &eb->vma[i]; struct drm_i915_gem_object *obj = ev->vma->obj; @@ -2177,8 +2171,6 @@ static int eb_move_to_gpu(struct i915_execbuffer *eb) if (err) break; } - - read_unlock(&eb->i915->mm.notifier_lock); } #endif diff --git a/drivers/gpu/drm/i915/gem/i915_gem_pm.c b/drivers/gpu/drm/i915/gem/i915_gem_pm.c index 0d812f4d787d..3b27218aabe2 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_pm.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_pm.c @@ -28,6 +28,13 @@ void i915_gem_suspend(struct drm_i915_private *i915) GEM_TRACE("%s\n", dev_name(i915->drm.dev)); intel_wakeref_auto(&i915->runtime_pm.userfault_wakeref, 0); + /* + * On rare occasions, we've observed the fence completion triggers + * free_engines asynchronously via rcu_call. Ensure those are done. + * This path is only called on suspend, so it's an acceptable cost. + */ + rcu_barrier(); + flush_workqueue(i915->wq); /* @@ -160,6 +167,9 @@ void i915_gem_suspend_late(struct drm_i915_private *i915) * machine in an unusable condition. */ + /* Like i915_gem_suspend, flush tasks staged from fence triggers */ + rcu_barrier(); + for_each_gt(gt, i915, i) intel_gt_suspend_late(gt); diff --git a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c index 1d3ebdf4069b..0e21ce9d3e5a 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c @@ -42,7 +42,6 @@ #include "i915_drv.h" #include "i915_gem_ioctls.h" #include "i915_gem_object.h" -#include "i915_gem_userptr.h" #include "i915_scatterlist.h" #ifdef CONFIG_MMU_NOTIFIER @@ -61,36 +60,7 @@ static bool i915_gem_userptr_invalidate(struct mmu_interval_notifier *mni, const struct mmu_notifier_range *range, unsigned long cur_seq) { - struct drm_i915_gem_object *obj = container_of(mni, struct drm_i915_gem_object, userptr.notifier); - struct drm_i915_private *i915 = to_i915(obj->base.dev); - long r; - - if (!mmu_notifier_range_blockable(range)) - return false; - - write_lock(&i915->mm.notifier_lock); - mmu_interval_set_seq(mni, cur_seq); - - write_unlock(&i915->mm.notifier_lock); - - /* - * We don't wait when the process is exiting. This is valid - * because the object will be cleaned up anyway. - * - * This is also temporarily required as a hack, because we - * cannot currently force non-consistent batch buffers to preempt - * and reschedule by waiting on it, hanging processes on exit. - */ - if (current->flags & PF_EXITING) - return true; - - /* we will unbind on next submission, still have userptr pins */ - r = dma_resv_wait_timeout(obj->base.resv, DMA_RESV_USAGE_BOOKKEEP, false, - MAX_SCHEDULE_TIMEOUT); - if (r <= 0) - drm_err(&i915->drm, "(%ld) failed to wait for idle\n", r); - return true; } @@ -580,15 +550,3 @@ i915_gem_userptr_ioctl(struct drm_device *dev, #endif } -int i915_gem_init_userptr(struct drm_i915_private *dev_priv) -{ -#ifdef CONFIG_MMU_NOTIFIER - rwlock_init(&dev_priv->mm.notifier_lock); -#endif - - return 0; -} - -void i915_gem_cleanup_userptr(struct drm_i915_private *dev_priv) -{ -} diff --git a/drivers/gpu/drm/i915/gem/i915_gem_userptr.h b/drivers/gpu/drm/i915/gem/i915_gem_userptr.h deleted file mode 100644 index 8dadb2f8436d..000000000000 --- a/drivers/gpu/drm/i915/gem/i915_gem_userptr.h +++ /dev/null @@ -1,14 +0,0 @@ -/* SPDX-License-Identifier: MIT */ -/* - * Copyright © 2021 Intel Corporation - */ - -#ifndef __I915_GEM_USERPTR_H__ -#define __I915_GEM_USERPTR_H__ - -struct drm_i915_private; - -int i915_gem_init_userptr(struct drm_i915_private *dev_priv); -void i915_gem_cleanup_userptr(struct drm_i915_private *dev_priv); - -#endif /* __I915_GEM_USERPTR_H__ */ diff --git a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c index 86a04afff64b..e1bf13e3d307 100644 --- a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c +++ b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c @@ -226,7 +226,7 @@ u32 *gen12_emit_aux_table_inv(struct intel_engine_cs *engine, u32 *cs) static int mtl_dummy_pipe_control(struct i915_request *rq) { /* Wa_14016712196 */ - if (IS_GFX_GT_IP_RANGE(rq->engine->gt, IP_VER(12, 70), IP_VER(12, 71)) || + if (IS_GFX_GT_IP_RANGE(rq->engine->gt, IP_VER(12, 70), IP_VER(12, 74)) || IS_DG2(rq->i915)) { u32 *cs; @@ -822,7 +822,7 @@ u32 *gen12_emit_fini_breadcrumb_rcs(struct i915_request *rq, u32 *cs) flags |= PIPE_CONTROL_FLUSH_L3; /* Wa_14016712196 */ - if (IS_GFX_GT_IP_RANGE(gt, IP_VER(12, 70), IP_VER(12, 71)) || IS_DG2(i915)) + if (IS_GFX_GT_IP_RANGE(gt, IP_VER(12, 70), IP_VER(12, 74)) || IS_DG2(i915)) /* dummy PIPE_CONTROL + depth flush */ cs = gen12_emit_pipe_control(cs, 0, PIPE_CONTROL_DEPTH_CACHE_FLUSH, 0); diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c index 40687806d22a..1ade568ffbfa 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c @@ -1190,7 +1190,8 @@ static int intel_engine_init_tlb_invalidation(struct intel_engine_cs *engine) num = ARRAY_SIZE(xelpmp_regs); } } else { - if (GRAPHICS_VER_FULL(i915) == IP_VER(12, 71) || + if (GRAPHICS_VER_FULL(i915) == IP_VER(12, 74) || + GRAPHICS_VER_FULL(i915) == IP_VER(12, 71) || GRAPHICS_VER_FULL(i915) == IP_VER(12, 70) || GRAPHICS_VER_FULL(i915) == IP_VER(12, 50) || GRAPHICS_VER_FULL(i915) == IP_VER(12, 55)) { diff --git a/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c b/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c index 1a8e2b7db013..4ae2fa0b61dd 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c @@ -290,6 +290,9 @@ static int __intel_engine_pulse(struct intel_engine_cs *engine) heartbeat_commit(rq, &attr); GEM_BUG_ON(rq->sched.attr.priority < I915_PRIORITY_BARRIER); + /* Ensure the forced pulse gets a full period to execute */ + next_heartbeat(engine); + return 0; } diff --git a/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c index f0dea54880af..c0b202223940 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c @@ -176,27 +176,13 @@ static u32 get_residency(struct intel_gt *gt, enum intel_rc6_res_type id) return DIV_ROUND_CLOSEST_ULL(res, 1000); } -static u8 get_rc6_mask(struct intel_gt *gt) -{ - u8 mask = 0; - - if (HAS_RC6(gt->i915)) - mask |= BIT(0); - if (HAS_RC6p(gt->i915)) - mask |= BIT(1); - if (HAS_RC6pp(gt->i915)) - mask |= BIT(2); - - return mask; -} - static ssize_t rc6_enable_show(struct kobject *kobj, struct kobj_attribute *attr, char *buff) { struct intel_gt *gt = intel_gt_sysfs_get_drvdata(kobj, attr->attr.name); - return sysfs_emit(buff, "%x\n", get_rc6_mask(gt)); + return sysfs_emit(buff, "%x\n", gt->rc6.enabled); } static ssize_t rc6_enable_dev_show(struct device *dev, @@ -205,7 +191,7 @@ static ssize_t rc6_enable_dev_show(struct device *dev, { struct intel_gt *gt = intel_gt_sysfs_get_drvdata(&dev->kobj, attr->attr.name); - return sysfs_emit(buff, "%x\n", get_rc6_mask(gt)); + return sysfs_emit(buff, "%x\n", gt->rc6.enabled); } static u32 __rc6_residency_ms_show(struct intel_gt *gt) diff --git a/drivers/gpu/drm/i915/gt/intel_mocs.c b/drivers/gpu/drm/i915/gt/intel_mocs.c index 353f93baaca0..25c1023eb5f9 100644 --- a/drivers/gpu/drm/i915/gt/intel_mocs.c +++ b/drivers/gpu/drm/i915/gt/intel_mocs.c @@ -495,7 +495,7 @@ static unsigned int get_mocs_settings(struct drm_i915_private *i915, memset(table, 0, sizeof(struct drm_i915_mocs_table)); table->unused_entries_index = I915_MOCS_PTE; - if (IS_GFX_GT_IP_RANGE(to_gt(i915), IP_VER(12, 70), IP_VER(12, 71))) { + if (IS_GFX_GT_IP_RANGE(to_gt(i915), IP_VER(12, 70), IP_VER(12, 74))) { table->size = ARRAY_SIZE(mtl_mocs_table); table->table = mtl_mocs_table; table->n_entries = MTL_NUM_MOCS_ENTRIES; diff --git a/drivers/gpu/drm/i915/gt/intel_rc6.c b/drivers/gpu/drm/i915/gt/intel_rc6.c index 7090e4be29cb..8f4b3c8af09c 100644 --- a/drivers/gpu/drm/i915/gt/intel_rc6.c +++ b/drivers/gpu/drm/i915/gt/intel_rc6.c @@ -123,7 +123,7 @@ static void gen11_rc6_enable(struct intel_rc6 *rc6) * temporary wa and should be removed after fixing real cause * of forcewake timeouts. */ - if (IS_GFX_GT_IP_RANGE(gt, IP_VER(12, 70), IP_VER(12, 71))) + if (IS_GFX_GT_IP_RANGE(gt, IP_VER(12, 70), IP_VER(12, 74))) pg_enable = GEN9_MEDIA_PG_ENABLE | GEN11_MEDIA_SAMPLER_PG_ENABLE; diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index 3eacbc50caf8..91814e3abd5c 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -789,8 +789,13 @@ static void xelpg_ctx_gt_tuning_init(struct intel_engine_cs *engine, dg2_ctx_gt_tuning_init(engine, wal); - if (IS_GFX_GT_IP_STEP(gt, IP_VER(12, 70), STEP_B0, STEP_FOREVER) || - IS_GFX_GT_IP_STEP(gt, IP_VER(12, 71), STEP_B0, STEP_FOREVER)) + /* + * Due to Wa_16014892111, the DRAW_WATERMARK tuning must be done in + * gen12_emit_indirect_ctx_rcs() rather than here on some early + * steppings. + */ + if (!(IS_GFX_GT_IP_STEP(gt, IP_VER(12, 70), STEP_A0, STEP_B0) || + IS_GFX_GT_IP_STEP(gt, IP_VER(12, 71), STEP_A0, STEP_B0))) wa_add(wal, DRAW_WATERMARK, VERT_WM_VAL, 0x3FF, 0, false); } @@ -820,6 +825,9 @@ static void xelpg_ctx_workarounds_init(struct intel_engine_cs *engine, /* Wa_18019271663 */ wa_masked_en(wal, CACHE_MODE_1, MSAA_OPTIMIZATION_REDUC_DISABLE); + + /* Wa_14019877138 */ + wa_mcr_masked_en(wal, XEHP_PSS_CHICKEN, FD_END_COLLECT); } static void fakewa_disable_nestedbb_mode(struct intel_engine_cs *engine, @@ -908,7 +916,7 @@ __intel_engine_init_ctx_wa(struct intel_engine_cs *engine, if (engine->class != RENDER_CLASS) goto done; - if (IS_GFX_GT_IP_RANGE(engine->gt, IP_VER(12, 70), IP_VER(12, 71))) + if (IS_GFX_GT_IP_RANGE(engine->gt, IP_VER(12, 70), IP_VER(12, 74))) xelpg_ctx_workarounds_init(engine, wal); else if (IS_PONTEVECCHIO(i915)) ; /* noop; none at this time */ @@ -1643,7 +1651,7 @@ pvc_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) static void xelpg_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) { - /* Wa_14018778641 / Wa_18018781329 */ + /* Wa_14018575942 / Wa_18018781329 */ wa_mcr_write_or(wal, COMP_MOD_CTRL, FORCE_MISS_FTLB); /* Wa_22016670082 */ @@ -1710,7 +1718,7 @@ xelpmp_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) */ static void gt_tuning_settings(struct intel_gt *gt, struct i915_wa_list *wal) { - if (IS_GFX_GT_IP_RANGE(gt, IP_VER(12, 70), IP_VER(12, 71))) { + if (IS_GFX_GT_IP_RANGE(gt, IP_VER(12, 70), IP_VER(12, 74))) { wa_mcr_write_or(wal, XEHP_L3SCQREG7, BLEND_FILL_CACHING_OPT_DIS); wa_mcr_write_or(wal, XEHP_SQCM, EN_32B_ACCESS); } @@ -1743,7 +1751,7 @@ gt_init_workarounds(struct intel_gt *gt, struct i915_wa_list *wal) return; } - if (IS_GFX_GT_IP_RANGE(gt, IP_VER(12, 70), IP_VER(12, 71))) + if (IS_GFX_GT_IP_RANGE(gt, IP_VER(12, 70), IP_VER(12, 74))) xelpg_gt_workarounds_init(gt, wal); else if (IS_PONTEVECCHIO(i915)) pvc_gt_workarounds_init(gt, wal); @@ -2216,7 +2224,7 @@ void intel_engine_init_whitelist(struct intel_engine_cs *engine) if (engine->gt->type == GT_MEDIA) ; /* none yet */ - else if (IS_GFX_GT_IP_RANGE(engine->gt, IP_VER(12, 70), IP_VER(12, 71))) + else if (IS_GFX_GT_IP_RANGE(engine->gt, IP_VER(12, 70), IP_VER(12, 74))) xelpg_whitelist_build(engine); else if (IS_PONTEVECCHIO(i915)) pvc_whitelist_build(engine); @@ -2828,7 +2836,7 @@ add_render_compute_tuning_settings(struct intel_gt *gt, { struct drm_i915_private *i915 = gt->i915; - if (IS_GFX_GT_IP_RANGE(gt, IP_VER(12, 70), IP_VER(12, 71)) || IS_DG2(i915)) + if (IS_GFX_GT_IP_RANGE(gt, IP_VER(12, 70), IP_VER(12, 74)) || IS_DG2(i915)) wa_mcr_write_clr_set(wal, RT_CTRL, STACKID_CTRL, STACKID_CTRL_512); /* @@ -2881,7 +2889,8 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li } if (IS_GFX_GT_IP_STEP(gt, IP_VER(12, 70), STEP_B0, STEP_FOREVER) || - IS_GFX_GT_IP_STEP(gt, IP_VER(12, 71), STEP_B0, STEP_FOREVER)) + IS_GFX_GT_IP_STEP(gt, IP_VER(12, 71), STEP_B0, STEP_FOREVER) || + IS_GFX_GT_IP_RANGE(gt, IP_VER(12, 74), IP_VER(12, 74))) /* Wa_14017856879 */ wa_mcr_masked_en(wal, GEN9_ROW_CHICKEN3, MTL_DISABLE_FIX_FOR_EOT_FLUSH); diff --git a/drivers/gpu/drm/i915/gt/selftest_rc6.c b/drivers/gpu/drm/i915/gt/selftest_rc6.c index a7189c2d660c..1aa1446c8fb0 100644 --- a/drivers/gpu/drm/i915/gt/selftest_rc6.c +++ b/drivers/gpu/drm/i915/gt/selftest_rc6.c @@ -62,12 +62,12 @@ int live_rc6_manual(void *arg) dt = ktime_get(); rc0_power = librapl_energy_uJ(); - msleep(250); + msleep(1000); rc0_power = librapl_energy_uJ() - rc0_power; dt = ktime_sub(ktime_get(), dt); res[1] = rc6_residency(rc6); if ((res[1] - res[0]) >> 10) { - pr_err("RC6 residency increased by %lldus while disabled for 250ms!\n", + pr_err("RC6 residency increased by %lldus while disabled for 1000ms!\n", (res[1] - res[0]) >> 10); err = -EINVAL; goto out_unlock; diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c index 63724e17829a..f7372f736a77 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c @@ -377,8 +377,13 @@ static int guc_mmio_regset_init(struct temp_regset *regset, CCS_MASK(engine->gt)) ret |= GUC_MMIO_REG_ADD(gt, regset, GEN12_RCU_MODE, true); + /* + * some of the WA registers are MCR registers. As it is safe to + * use MCR form for non-MCR registers, for code simplicity, all + * WA registers are added with MCR form. + */ for (i = 0, wa = wal->list; i < wal->count; i++, wa++) - ret |= GUC_MMIO_REG_ADD(gt, regset, wa->reg, wa->masked_reg); + ret |= GUC_MCR_REG_ADD(gt, regset, wa->mcr_reg, wa->masked_reg); /* Be extra paranoid and include all whitelist registers. */ for (i = 0; i < RING_MAX_NONPRIV_SLOTS; i++) @@ -394,13 +399,13 @@ static int guc_mmio_regset_init(struct temp_regset *regset, ret |= GUC_MMIO_REG_ADD(gt, regset, GEN9_LNCFCMOCS(i), false); if (GRAPHICS_VER(engine->i915) >= 12) { - ret |= GUC_MMIO_REG_ADD(gt, regset, EU_PERF_CNTL0, false); - ret |= GUC_MMIO_REG_ADD(gt, regset, EU_PERF_CNTL1, false); - ret |= GUC_MMIO_REG_ADD(gt, regset, EU_PERF_CNTL2, false); - ret |= GUC_MMIO_REG_ADD(gt, regset, EU_PERF_CNTL3, false); - ret |= GUC_MMIO_REG_ADD(gt, regset, EU_PERF_CNTL4, false); - ret |= GUC_MMIO_REG_ADD(gt, regset, EU_PERF_CNTL5, false); - ret |= GUC_MMIO_REG_ADD(gt, regset, EU_PERF_CNTL6, false); + ret |= GUC_MCR_REG_ADD(gt, regset, MCR_REG(i915_mmio_reg_offset(EU_PERF_CNTL0)), false); + ret |= GUC_MCR_REG_ADD(gt, regset, MCR_REG(i915_mmio_reg_offset(EU_PERF_CNTL1)), false); + ret |= GUC_MCR_REG_ADD(gt, regset, MCR_REG(i915_mmio_reg_offset(EU_PERF_CNTL2)), false); + ret |= GUC_MCR_REG_ADD(gt, regset, MCR_REG(i915_mmio_reg_offset(EU_PERF_CNTL3)), false); + ret |= GUC_MCR_REG_ADD(gt, regset, MCR_REG(i915_mmio_reg_offset(EU_PERF_CNTL4)), false); + ret |= GUC_MCR_REG_ADD(gt, regset, MCR_REG(i915_mmio_reg_offset(EU_PERF_CNTL5)), false); + ret |= GUC_MCR_REG_ADD(gt, regset, MCR_REG(i915_mmio_reg_offset(EU_PERF_CNTL6)), false); } return ret ? -1 : 0; diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c index 0f79cb658518..52332bb14339 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c @@ -184,7 +184,7 @@ static int guc_wait_ucode(struct intel_guc *guc) * in the seconds range. However, there is a limit on how long an * individual wait_for() can wait. So wrap it in a loop. */ - before_freq = intel_rps_read_actual_frequency(&uncore->gt->rps); + before_freq = intel_rps_read_actual_frequency(>->rps); before = ktime_get(); for (count = 0; count < GUC_LOAD_RETRY_LIMIT; count++) { ret = wait_for(guc_load_done(uncore, &status, &success), 1000); @@ -192,7 +192,7 @@ static int guc_wait_ucode(struct intel_guc *guc) break; guc_dbg(guc, "load still in progress, count = %d, freq = %dMHz, status = 0x%08X [0x%02X/%02X]\n", - count, intel_rps_read_actual_frequency(&uncore->gt->rps), status, + count, intel_rps_read_actual_frequency(>->rps), status, REG_FIELD_GET(GS_BOOTROM_MASK, status), REG_FIELD_GET(GS_UKERNEL_MASK, status)); } @@ -204,7 +204,7 @@ static int guc_wait_ucode(struct intel_guc *guc) u32 bootrom = REG_FIELD_GET(GS_BOOTROM_MASK, status); guc_info(guc, "load failed: status = 0x%08X, time = %lldms, freq = %dMHz, ret = %d\n", - status, delta_ms, intel_rps_read_actual_frequency(&uncore->gt->rps), ret); + status, delta_ms, intel_rps_read_actual_frequency(>->rps), ret); guc_info(guc, "load failed: status: Reset = %d, BootROM = 0x%02X, UKernel = 0x%02X, MIA = 0x%02X, Auth = 0x%02X\n", REG_FIELD_GET(GS_MIA_IN_RESET, status), bootrom, ukernel, @@ -254,11 +254,11 @@ static int guc_wait_ucode(struct intel_guc *guc) guc_warn(guc, "excessive init time: %lldms! [status = 0x%08X, count = %d, ret = %d]\n", delta_ms, status, count, ret); guc_warn(guc, "excessive init time: [freq = %dMHz, before = %dMHz, perf_limit_reasons = 0x%08X]\n", - intel_rps_read_actual_frequency(&uncore->gt->rps), before_freq, + intel_rps_read_actual_frequency(>->rps), before_freq, intel_uncore_read(uncore, intel_gt_perf_limit_reasons_reg(gt))); } else { guc_dbg(guc, "init took %lldms, freq = %dMHz, before = %dMHz, status = 0x%08X, count = %d, ret = %d\n", - delta_ms, intel_rps_read_actual_frequency(&uncore->gt->rps), + delta_ms, intel_rps_read_actual_frequency(>->rps), before_freq, status, count, ret); } diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c index a259f1118c5a..f3dcae4b9d45 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c @@ -236,6 +236,13 @@ set_context_destroyed(struct intel_context *ce) ce->guc_state.sched_state |= SCHED_STATE_DESTROYED; } +static inline void +clr_context_destroyed(struct intel_context *ce) +{ + lockdep_assert_held(&ce->guc_state.lock); + ce->guc_state.sched_state &= ~SCHED_STATE_DESTROYED; +} + static inline bool context_pending_disable(struct intel_context *ce) { return ce->guc_state.sched_state & SCHED_STATE_PENDING_DISABLE; @@ -613,6 +620,8 @@ static int guc_submission_send_busy_loop(struct intel_guc *guc, u32 g2h_len_dw, bool loop) { + int ret; + /* * We always loop when a send requires a reply (i.e. g2h_len_dw > 0), * so we don't handle the case where we don't get a reply because we @@ -623,7 +632,11 @@ static int guc_submission_send_busy_loop(struct intel_guc *guc, if (g2h_len_dw) atomic_inc(&guc->outstanding_submission_g2h); - return intel_guc_send_busy_loop(guc, action, len, g2h_len_dw, loop); + ret = intel_guc_send_busy_loop(guc, action, len, g2h_len_dw, loop); + if (ret) + atomic_dec(&guc->outstanding_submission_g2h); + + return ret; } int intel_guc_wait_for_pending_msg(struct intel_guc *guc, @@ -1362,7 +1375,45 @@ static void guc_enable_busyness_worker(struct intel_guc *guc) static void guc_cancel_busyness_worker(struct intel_guc *guc) { - cancel_delayed_work_sync(&guc->timestamp.work); + /* + * There are many different call stacks that can get here. Some of them + * hold the reset mutex. The busyness worker also attempts to acquire the + * reset mutex. Synchronously flushing a worker thread requires acquiring + * the worker mutex. Lockdep sees this as a conflict. It thinks that the + * flush can deadlock because it holds the worker mutex while waiting for + * the reset mutex, but another thread is holding the reset mutex and might + * attempt to use other worker functions. + * + * In practice, this scenario does not exist because the busyness worker + * does not block waiting for the reset mutex. It does a try-lock on it and + * immediately exits if the lock is already held. Unfortunately, the mutex + * in question (I915_RESET_BACKOFF) is an i915 implementation which has lockdep + * annotation but not to the extent of explaining the 'might lock' is also a + * 'does not need to lock'. So one option would be to add more complex lockdep + * annotations to ignore the issue (if at all possible). A simpler option is to + * just not flush synchronously when a rest in progress. Given that the worker + * will just early exit and re-schedule itself anyway, there is no advantage + * to running it immediately. + * + * If a reset is not in progress, then the synchronous flush may be required. + * As noted many call stacks lead here, some during suspend and driver unload + * which do require a synchronous flush to make sure the worker is stopped + * before memory is freed. + * + * Trying to pass a 'need_sync' or 'in_reset' flag all the way down through + * every possible call stack is unfeasible. It would be too intrusive to many + * areas that really don't care about the GuC backend. However, there is the + * 'reset_in_progress' flag available, so just use that. + * + * And note that in the case of a reset occurring during driver unload + * (wedge_on_fini), skipping the cancel in _prepare (when the reset flag is set + * is fine because there is another cancel in _finish (when the reset flag is + * not). + */ + if (guc_to_gt(guc)->uc.reset_in_progress) + cancel_delayed_work(&guc->timestamp.work); + else + cancel_delayed_work_sync(&guc->timestamp.work); } static void __reset_guc_busyness_stats(struct intel_guc *guc) @@ -1613,6 +1664,11 @@ static void guc_flush_submissions(struct intel_guc *guc) spin_unlock_irqrestore(&sched_engine->lock, flags); } +void intel_guc_submission_flush_work(struct intel_guc *guc) +{ + flush_work(&guc->submission_state.destroyed_worker); +} + static void guc_flush_destroyed_contexts(struct intel_guc *guc); void intel_guc_submission_reset_prepare(struct intel_guc *guc) @@ -1948,8 +2004,16 @@ void intel_guc_submission_cancel_requests(struct intel_guc *guc) void intel_guc_submission_reset_finish(struct intel_guc *guc) { + /* + * Ensure the busyness worker gets cancelled even on a fatal wedge. + * Note that reset_prepare is not allowed to because it confuses lockdep. + */ + if (guc_submission_initialized(guc)) + guc_cancel_busyness_worker(guc); + /* Reset called during driver load or during wedge? */ if (unlikely(!guc_submission_initialized(guc) || + !intel_guc_is_fw_running(guc) || intel_gt_is_wedged(guc_to_gt(guc)))) { return; } @@ -3283,12 +3347,13 @@ static void guc_context_close(struct intel_context *ce) spin_unlock_irqrestore(&ce->guc_state.lock, flags); } -static inline void guc_lrc_desc_unpin(struct intel_context *ce) +static inline int guc_lrc_desc_unpin(struct intel_context *ce) { struct intel_guc *guc = ce_to_guc(ce); struct intel_gt *gt = guc_to_gt(guc); unsigned long flags; bool disabled; + int ret; GEM_BUG_ON(!intel_gt_pm_is_awake(gt)); GEM_BUG_ON(!ctx_id_mapped(guc, ce->guc_id.id)); @@ -3299,18 +3364,41 @@ static inline void guc_lrc_desc_unpin(struct intel_context *ce) spin_lock_irqsave(&ce->guc_state.lock, flags); disabled = submission_disabled(guc); if (likely(!disabled)) { + /* + * Take a gt-pm ref and change context state to be destroyed. + * NOTE: a G2H IRQ that comes after will put this gt-pm ref back + */ __intel_gt_pm_get(gt); set_context_destroyed(ce); clr_context_registered(ce); } spin_unlock_irqrestore(&ce->guc_state.lock, flags); + if (unlikely(disabled)) { release_guc_id(guc, ce); __guc_context_destroy(ce); - return; + return 0; } - deregister_context(ce, ce->guc_id.id); + /* + * GuC is active, lets destroy this context, but at this point we can still be racing + * with suspend, so we undo everything if the H2G fails in deregister_context so + * that GuC reset will find this context during clean up. + */ + ret = deregister_context(ce, ce->guc_id.id); + if (ret) { + spin_lock(&ce->guc_state.lock); + set_context_registered(ce); + clr_context_destroyed(ce); + spin_unlock(&ce->guc_state.lock); + /* + * As gt-pm is awake at function entry, intel_wakeref_put_async merely decrements + * the wakeref immediately but per function spec usage call this after unlock. + */ + intel_wakeref_put_async(>->wakeref); + } + + return ret; } static void __guc_context_destroy(struct intel_context *ce) @@ -3378,7 +3466,22 @@ static void deregister_destroyed_contexts(struct intel_guc *guc) if (!ce) break; - guc_lrc_desc_unpin(ce); + if (guc_lrc_desc_unpin(ce)) { + /* + * This means GuC's CT link severed mid-way which could happen + * in suspend-resume corner cases. In this case, put the + * context back into the destroyed_contexts list which will + * get picked up on the next context deregistration event or + * purged in a GuC sanitization event (reset/unload/wedged/...). + */ + spin_lock_irqsave(&guc->submission_state.lock, flags); + list_add_tail(&ce->destroyed_link, + &guc->submission_state.destroyed_contexts); + spin_unlock_irqrestore(&guc->submission_state.lock, flags); + /* Bail now since the list might never be emptied if h2gs fail */ + break; + } + } } @@ -3389,6 +3492,17 @@ static void destroyed_worker_func(struct work_struct *w) struct intel_gt *gt = guc_to_gt(guc); intel_wakeref_t wakeref; + /* + * In rare cases we can get here via async context-free fence-signals that + * come very late in suspend flow or very early in resume flows. In these + * cases, GuC won't be ready but just skipping it here is fine as these + * pending-destroy-contexts get destroyed totally at GuC reset time at the + * end of suspend.. OR.. this worker can be picked up later on the next + * context destruction trigger after resume-completes + */ + if (!intel_guc_is_ready(guc)) + return; + with_intel_gt_pm(gt, wakeref) deregister_destroyed_contexts(guc); } diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h index c57b29cdb1a6..b6df75622d3b 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h @@ -38,6 +38,8 @@ int intel_guc_wait_for_pending_msg(struct intel_guc *guc, bool interruptible, long timeout); +void intel_guc_submission_flush_work(struct intel_guc *guc); + static inline bool intel_guc_submission_is_supported(struct intel_guc *guc) { return guc->submission_supported; diff --git a/drivers/gpu/drm/i915/gt/uc/intel_huc.c b/drivers/gpu/drm/i915/gt/uc/intel_huc.c index ba9e07fc2b57..0945b177d5f9 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_huc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_huc.c @@ -6,6 +6,7 @@ #include <linux/types.h> #include "gt/intel_gt.h" +#include "gt/intel_rps.h" #include "intel_guc_reg.h" #include "intel_huc.h" #include "intel_huc_print.h" @@ -447,17 +448,68 @@ static const char *auth_mode_string(struct intel_huc *huc, return partial ? "clear media" : "all workloads"; } +/* + * Use a longer timeout for debug builds so that problems can be detected + * and analysed. But a shorter timeout for releases so that user's don't + * wait forever to find out there is a problem. Note that the only reason + * an end user should hit the timeout is in case of extreme thermal throttling. + * And a system that is that hot during boot is probably dead anyway! + */ +#if defined(CONFIG_DRM_I915_DEBUG_GEM) +#define HUC_LOAD_RETRY_LIMIT 20 +#else +#define HUC_LOAD_RETRY_LIMIT 3 +#endif + int intel_huc_wait_for_auth_complete(struct intel_huc *huc, enum intel_huc_authentication_type type) { struct intel_gt *gt = huc_to_gt(huc); - int ret; + struct intel_uncore *uncore = gt->uncore; + ktime_t before, after, delta; + int ret, count; + u64 delta_ms; + u32 before_freq; - ret = __intel_wait_for_register(gt->uncore, - huc->status[type].reg, - huc->status[type].mask, - huc->status[t |