diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_gt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_gt.c | 652 |
1 files changed, 405 insertions, 247 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c index f98f0fb21efb..3d3b1ba76e2b 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt.c +++ b/drivers/gpu/drm/i915/gt/intel_gt.c @@ -3,31 +3,43 @@ * Copyright © 2019 Intel Corporation */ -#include <drm/intel-gtt.h> - -#include "intel_gt_debugfs.h" +#include <drm/drm_managed.h> +#include <drm/intel/intel-gtt.h> +#include "gem/i915_gem_internal.h" #include "gem/i915_gem_lmem.h" + #include "i915_drv.h" +#include "i915_perf_oa_regs.h" +#include "i915_reg.h" #include "intel_context.h" +#include "intel_engine_pm.h" +#include "intel_engine_regs.h" +#include "intel_ggtt_gmch.h" #include "intel_gt.h" #include "intel_gt_buffer_pool.h" #include "intel_gt_clock_utils.h" +#include "intel_gt_debugfs.h" +#include "intel_gt_mcr.h" #include "intel_gt_pm.h" +#include "intel_gt_print.h" +#include "intel_gt_regs.h" #include "intel_gt_requests.h" #include "intel_migrate.h" #include "intel_mocs.h" -#include "intel_pm.h" +#include "intel_pci_config.h" #include "intel_rc6.h" #include "intel_renderstate.h" #include "intel_rps.h" +#include "intel_sa_media.h" +#include "intel_gt_sysfs.h" +#include "intel_tlb.h" #include "intel_uncore.h" #include "shmem_utils.h" -#include "pxp/intel_pxp.h" -void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915) +void intel_gt_common_init_early(struct intel_gt *gt) { - spin_lock_init(>->irq_lock); + spin_lock_init(gt->irq_lock); INIT_LIST_HEAD(>->closed_vma); spin_lock_init(>->closed_lock); @@ -39,42 +51,57 @@ void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915) intel_gt_init_reset(gt); intel_gt_init_requests(gt); intel_gt_init_timelines(gt); + intel_gt_init_tlb(gt); intel_gt_pm_init_early(gt); + intel_wopcm_init_early(>->wopcm); intel_uc_init_early(>->uc); intel_rps_init_early(>->rps); } -void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915) +/* Preliminary initialization of Tile 0 */ +int intel_root_gt_init_early(struct drm_i915_private *i915) { + struct intel_gt *gt; + + gt = drmm_kzalloc(&i915->drm, sizeof(*gt), GFP_KERNEL); + if (!gt) + return -ENOMEM; + + i915->gt[0] = gt; + gt->i915 = i915; gt->uncore = &i915->uncore; + gt->irq_lock = drmm_kzalloc(&i915->drm, sizeof(*gt->irq_lock), GFP_KERNEL); + if (!gt->irq_lock) + return -ENOMEM; + + intel_gt_common_init_early(gt); + + return 0; } -int intel_gt_probe_lmem(struct intel_gt *gt) +static int intel_gt_probe_lmem(struct intel_gt *gt) { struct drm_i915_private *i915 = gt->i915; + unsigned int instance = gt->info.id; + int id = INTEL_REGION_LMEM_0 + instance; struct intel_memory_region *mem; - int id; int err; mem = intel_gt_setup_lmem(gt); - if (mem == ERR_PTR(-ENODEV)) - mem = intel_gt_setup_fake_lmem(gt); if (IS_ERR(mem)) { err = PTR_ERR(mem); if (err == -ENODEV) return 0; - drm_err(&i915->drm, - "Failed to setup region(%d) type=%d\n", - err, INTEL_MEMORY_LOCAL); + gt_err(gt, "Failed to setup region(%d) type=%d\n", + err, INTEL_MEMORY_LOCAL); return err; } - id = INTEL_REGION_LMEM; - mem->id = id; + mem->instance = instance; intel_memory_region_set_name(mem, "local%u", mem->instance); @@ -85,77 +112,29 @@ int intel_gt_probe_lmem(struct intel_gt *gt) return 0; } -void intel_gt_init_hw_early(struct intel_gt *gt, struct i915_ggtt *ggtt) +int intel_gt_assign_ggtt(struct intel_gt *gt) { - gt->ggtt = ggtt; -} - -static const struct intel_mmio_range icl_l3bank_steering_table[] = { - { 0x00B100, 0x00B3FF }, - {}, -}; - -static const struct intel_mmio_range xehpsdv_mslice_steering_table[] = { - { 0x004000, 0x004AFF }, - { 0x00C800, 0x00CFFF }, - { 0x00DD00, 0x00DDFF }, - { 0x00E900, 0x00FFFF }, /* 0xEA00 - OxEFFF is unused */ - {}, -}; - -static const struct intel_mmio_range xehpsdv_lncf_steering_table[] = { - { 0x00B000, 0x00B0FF }, - { 0x00D800, 0x00D8FF }, - {}, -}; - -static const struct intel_mmio_range dg2_lncf_steering_table[] = { - { 0x00B000, 0x00B0FF }, - { 0x00D880, 0x00D8FF }, - {}, -}; + /* Media GT shares primary GT's GGTT */ + if (gt->type == GT_MEDIA) { + gt->ggtt = to_gt(gt->i915)->ggtt; + } else { + gt->ggtt = i915_ggtt_create(gt->i915); + if (IS_ERR(gt->ggtt)) + return PTR_ERR(gt->ggtt); + } -static u16 slicemask(struct intel_gt *gt, int count) -{ - u64 dss_mask = intel_sseu_get_subslices(>->info.sseu, 0); + list_add_tail(>->ggtt_link, >->ggtt->gt_list); - return intel_slicemask_from_dssmask(dss_mask, count); + return 0; } int intel_gt_init_mmio(struct intel_gt *gt) { - struct drm_i915_private *i915 = gt->i915; - intel_gt_init_clock_frequency(gt); intel_uc_init_mmio(>->uc); intel_sseu_info_init(gt); - - /* - * An mslice is unavailable only if both the meml3 for the slice is - * disabled *and* all of the DSS in the slice (quadrant) are disabled. - */ - if (HAS_MSLICES(i915)) - gt->info.mslice_mask = - slicemask(gt, GEN_DSS_PER_MSLICE) | - (intel_uncore_read(gt->uncore, GEN10_MIRROR_FUSE3) & - GEN12_MEML3_EN_MASK); - - if (IS_DG2(i915)) { - gt->steering_table[MSLICE] = xehpsdv_mslice_steering_table; - gt->steering_table[LNCF] = dg2_lncf_steering_table; - } else if (IS_XEHPSDV(i915)) { - gt->steering_table[MSLICE] = xehpsdv_mslice_steering_table; - gt->steering_table[LNCF] = xehpsdv_lncf_steering_table; - } else if (GRAPHICS_VER(i915) >= 11 && - GRAPHICS_VER_FULL(i915) < IP_VER(12, 50)) { - gt->steering_table[L3BANK] = icl_l3bank_steering_table; - gt->info.l3bank_mask = - ~intel_uncore_read(gt->uncore, GEN10_MIRROR_FUSE3) & - GEN10_L3BANK_MASK; - } else if (HAS_MSLICES(i915)) { - MISSING_CASE(INTEL_INFO(i915)->platform); - } + intel_gt_mcr_init(gt); return intel_engines_init_mmio(gt); } @@ -205,8 +184,8 @@ int intel_gt_init_hw(struct intel_gt *gt) if (IS_HASWELL(i915)) intel_uncore_write(uncore, - MI_PREDICATE_RESULT_2, - IS_HSW_GT3(i915) ? + HSW_MI_PREDICATE_RESULT_2, + INTEL_INFO(i915)->gt == 3 ? LOWER_SLICE_ENABLED : LOWER_SLICE_DISABLED); /* Apply the GT workarounds... */ @@ -226,14 +205,14 @@ int intel_gt_init_hw(struct intel_gt *gt) ret = i915_ppgtt_init_hw(gt); if (ret) { - DRM_ERROR("Enabling PPGTT failed (%d)\n", ret); + gt_err(gt, "Enabling PPGTT failed (%d)\n", ret); goto out; } /* We can't enable contexts until all firmware is loaded */ ret = intel_uc_init_hw(>->uc); if (ret) { - i915_probe_error(i915, "Enabling uc failed (%d)\n", ret); + gt_probe_error(gt, "Enabling uc failed (%d)\n", ret); goto out; } @@ -244,25 +223,20 @@ out: return ret; } -static void rmw_set(struct intel_uncore *uncore, i915_reg_t reg, u32 set) +static void gen6_clear_engine_error_register(struct intel_engine_cs *engine) { - intel_uncore_rmw(uncore, reg, 0, set); + GEN6_RING_FAULT_REG_RMW(engine, RING_FAULT_VALID, 0); + GEN6_RING_FAULT_REG_POSTING_READ(engine); } -static void rmw_clear(struct intel_uncore *uncore, i915_reg_t reg, u32 clr) +i915_reg_t intel_gt_perf_limit_reasons_reg(struct intel_gt *gt) { - intel_uncore_rmw(uncore, reg, clr, 0); -} + /* GT0_PERF_LIMIT_REASONS is available only for Gen11+ */ + if (GRAPHICS_VER(gt->i915) < 11) + return INVALID_MMIO_REG; -static void clear_register(struct intel_uncore *uncore, i915_reg_t reg) -{ - intel_uncore_rmw(uncore, reg, 0, 0); -} - -static void gen6_clear_engine_error_register(struct intel_engine_cs *engine) -{ - GEN6_RING_FAULT_REG_RMW(engine, RING_FAULT_VALID, 0); - GEN6_RING_FAULT_REG_POSTING_READ(engine); + return gt->type == GT_MEDIA ? + MTL_MEDIA_PERF_LIMIT_REASONS : GT0_PERF_LIMIT_REASONS; } void @@ -274,31 +248,46 @@ intel_gt_clear_error_registers(struct intel_gt *gt, u32 eir; if (GRAPHICS_VER(i915) != 2) - clear_register(uncore, PGTBL_ER); + intel_uncore_write(uncore, PGTBL_ER, 0); if (GRAPHICS_VER(i915) < 4) - clear_register(uncore, IPEIR(RENDER_RING_BASE)); + intel_uncore_write(uncore, IPEIR(RENDER_RING_BASE), 0); else - clear_register(uncore, IPEIR_I965); + intel_uncore_write(uncore, IPEIR_I965, 0); - clear_register(uncore, EIR); + intel_uncore_write(uncore, EIR, 0); eir = intel_uncore_read(uncore, EIR); if (eir) { /* * some errors might have become stuck, * mask them. */ - DRM_DEBUG_DRIVER("EIR stuck: 0x%08x, masking\n", eir); - rmw_set(uncore, EMR, eir); + gt_dbg(gt, "EIR stuck: 0x%08x, masking\n", eir); + intel_uncore_rmw(uncore, EMR, 0, eir); intel_uncore_write(uncore, GEN2_IIR, I915_MASTER_ERROR_INTERRUPT); } - if (GRAPHICS_VER(i915) >= 12) { - rmw_clear(uncore, GEN12_RING_FAULT_REG, RING_FAULT_VALID); + /* + * For the media GT, this ring fault register is not replicated, + * so don't do multicast/replicated register read/write operation on it. + */ + if (MEDIA_VER(i915) >= 13 && gt->type == GT_MEDIA) { + intel_uncore_rmw(uncore, XELPMP_RING_FAULT_REG, + RING_FAULT_VALID, 0); + intel_uncore_posting_read(uncore, + XELPMP_RING_FAULT_REG); + + } else if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 55)) { + intel_gt_mcr_multicast_rmw(gt, XEHP_RING_FAULT_REG, + RING_FAULT_VALID, 0); + intel_gt_mcr_read_any(gt, XEHP_RING_FAULT_REG); + + } else if (GRAPHICS_VER(i915) >= 12) { + intel_uncore_rmw(uncore, GEN12_RING_FAULT_REG, RING_FAULT_VALID, 0); intel_uncore_posting_read(uncore, GEN12_RING_FAULT_REG); } else if (GRAPHICS_VER(i915) >= 8) { - rmw_clear(uncore, GEN8_RING_FAULT_REG, RING_FAULT_VALID); + intel_uncore_rmw(uncore, GEN8_RING_FAULT_REG, RING_FAULT_VALID, 0); intel_uncore_posting_read(uncore, GEN8_RING_FAULT_REG); } else if (GRAPHICS_VER(i915) >= 6) { struct intel_engine_cs *engine; @@ -313,25 +302,66 @@ static void gen6_check_faults(struct intel_gt *gt) { struct intel_engine_cs *engine; enum intel_engine_id id; - u32 fault; for_each_engine(engine, gt, id) { + u32 fault; + fault = GEN6_RING_FAULT_REG_READ(engine); + if (fault & RING_FAULT_VALID) { - drm_dbg(&engine->i915->drm, "Unexpected fault\n" - "\tAddr: 0x%08lx\n" - "\tAddress space: %s\n" - "\tSource ID: %d\n" - "\tType: %d\n", - fault & PAGE_MASK, - fault & RING_FAULT_GTTSEL_MASK ? - "GGTT" : "PPGTT", - RING_FAULT_SRCID(fault), - RING_FAULT_FAULT_TYPE(fault)); + gt_dbg(gt, "Unexpected fault\n" + "\tAddr: 0x%08x\n" + "\tAddress space: %s\n" + "\tSource ID: %d\n" + "\tType: %d\n", + fault & RING_FAULT_VADDR_MASK, + fault & RING_FAULT_GTTSEL_MASK ? + "GGTT" : "PPGTT", + REG_FIELD_GET(RING_FAULT_SRCID_MASK, fault), + REG_FIELD_GET(RING_FAULT_FAULT_TYPE_MASK, fault)); } } } +static void gen8_report_fault(struct intel_gt *gt, u32 fault, + u32 fault_data0, u32 fault_data1) +{ + u64 fault_addr; + + fault_addr = ((u64)(fault_data1 & FAULT_VA_HIGH_BITS) << 44) | + ((u64)fault_data0 << 12); + + gt_dbg(gt, "Unexpected fault\n" + "\tAddr: 0x%08x_%08x\n" + "\tAddress space: %s\n" + "\tEngine ID: %d\n" + "\tSource ID: %d\n" + "\tType: %d\n", + upper_32_bits(fault_addr), lower_32_bits(fault_addr), + fault_data1 & FAULT_GTT_SEL ? "GGTT" : "PPGTT", + REG_FIELD_GET(RING_FAULT_ENGINE_ID_MASK, fault), + REG_FIELD_GET(RING_FAULT_SRCID_MASK, fault), + REG_FIELD_GET(RING_FAULT_FAULT_TYPE_MASK, fault)); +} + +static void xehp_check_faults(struct intel_gt *gt) +{ + u32 fault; + + /* + * Although the fault register now lives in an MCR register range, + * the GAM registers are special and we only truly need to read + * the "primary" GAM instance rather than handling each instance + * individually. intel_gt_mcr_read_any() will automatically steer + * toward the primary instance. + */ + fault = intel_gt_mcr_read_any(gt, XEHP_RING_FAULT_REG); + if (fault & RING_FAULT_VALID) + gen8_report_fault(gt, fault, + intel_gt_mcr_read_any(gt, XEHP_FAULT_TLB_DATA0), + intel_gt_mcr_read_any(gt, XEHP_FAULT_TLB_DATA1)); +} + static void gen8_check_faults(struct intel_gt *gt) { struct intel_uncore *uncore = gt->uncore; @@ -349,28 +379,10 @@ static void gen8_check_faults(struct intel_gt *gt) } fault = intel_uncore_read(uncore, fault_reg); - if (fault & RING_FAULT_VALID) { - u32 fault_data0, fault_data1; - u64 fault_addr; - - fault_data0 = intel_uncore_read(uncore, fault_data0_reg); - fault_data1 = intel_uncore_read(uncore, fault_data1_reg); - - fault_addr = ((u64)(fault_data1 & FAULT_VA_HIGH_BITS) << 44) | - ((u64)fault_data0 << 12); - - drm_dbg(&uncore->i915->drm, "Unexpected fault\n" - "\tAddr: 0x%08x_%08x\n" - "\tAddress space: %s\n" - "\tEngine ID: %d\n" - "\tSource ID: %d\n" - "\tType: %d\n", - upper_32_bits(fault_addr), lower_32_bits(fault_addr), - fault_data1 & FAULT_GTT_SEL ? "GGTT" : "PPGTT", - GEN8_RING_FAULT_ENGINE_ID(fault), - RING_FAULT_SRCID(fault), - RING_FAULT_FAULT_TYPE(fault)); - } + if (fault & RING_FAULT_VALID) + gen8_report_fault(gt, fault, + intel_uncore_read(uncore, fault_data0_reg), + intel_uncore_read(uncore, fault_data1_reg)); } void intel_gt_check_and_clear_faults(struct intel_gt *gt) @@ -378,7 +390,9 @@ void intel_gt_check_and_clear_faults(struct intel_gt *gt) struct drm_i915_private *i915 = gt->i915; /* From GEN8 onwards we only have one 'All Engine Fault Register' */ - if (GRAPHICS_VER(i915) >= 8) + if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 55)) + xehp_check_faults(gt); + else if (GRAPHICS_VER(i915) >= 8) gen8_check_faults(gt); else if (GRAPHICS_VER(i915) >= 6) gen6_check_faults(gt); @@ -424,7 +438,7 @@ void intel_gt_flush_ggtt_writes(struct intel_gt *gt) spin_lock_irqsave(&uncore->lock, flags); intel_uncore_posting_read_fw(uncore, - RING_HEAD(RENDER_RING_BASE)); + RING_TAIL(RENDER_RING_BASE)); spin_unlock_irqrestore(&uncore->lock, flags); } } @@ -433,14 +447,17 @@ void intel_gt_chipset_flush(struct intel_gt *gt) { wmb(); if (GRAPHICS_VER(gt->i915) < 6) - intel_gtt_chipset_flush(); + intel_ggtt_gmch_flush(); } void intel_gt_driver_register(struct intel_gt *gt) { + intel_gsc_init(>->gsc, gt->i915); + intel_rps_driver_register(>->rps); intel_gt_debugfs_register(gt); + intel_gt_sysfs_register(gt); } static int intel_gt_init_scratch(struct intel_gt *gt, unsigned int size) @@ -450,13 +467,15 @@ static int intel_gt_init_scratch(struct intel_gt *gt, unsigned int size) struct i915_vma *vma; int ret; - obj = i915_gem_object_create_lmem(i915, size, I915_BO_ALLOC_VOLATILE); - if (IS_ERR(obj)) + obj = i915_gem_object_create_lmem(i915, size, + I915_BO_ALLOC_VOLATILE | + I915_BO_ALLOC_GPU_ONLY); + if (IS_ERR(obj) && !IS_METEORLAKE(i915)) /* Wa_22018444074 */ obj = i915_gem_object_create_stolen(i915, size); if (IS_ERR(obj)) obj = i915_gem_object_create_internal(i915, size); if (IS_ERR(obj)) { - drm_err(&i915->drm, "Failed to allocate scratch page\n"); + gt_err(gt, "Failed to allocate scratch page\n"); return PTR_ERR(obj); } @@ -654,8 +673,13 @@ int intel_gt_wait_for_idle(struct intel_gt *gt, long timeout) return -EINTR; } - return timeout ? timeout : intel_uc_wait_for_idle(>->uc, - remaining_timeout); + if (timeout) + return timeout; + + if (remaining_timeout < 0) + remaining_timeout = 0; + + return intel_uc_wait_for_idle(>->uc, remaining_timeout); } int intel_gt_init(struct intel_gt *gt) @@ -704,6 +728,10 @@ int intel_gt_init(struct intel_gt *gt) if (err) goto err_uc_init; + err = intel_gt_init_hwconfig(gt); + if (err) + gt_err(gt, "Failed to retrieve hwconfig table: %pe\n", ERR_PTR(err)); + err = __engines_record_defaults(gt); if (err) goto err_gt; @@ -712,15 +740,13 @@ int intel_gt_init(struct intel_gt *gt) if (err) goto err_gt; - intel_uc_init_late(>->uc); - err = i915_inject_probe_error(gt->i915, -EIO); if (err) goto err_gt; - intel_migrate_init(>->migrate, gt); + intel_uc_init_late(>->uc); - intel_pxp_init(>->pxp); + intel_migrate_init(>->migrate, gt); goto out_fw; err_gt: @@ -757,9 +783,32 @@ void intel_gt_driver_unregister(struct intel_gt *gt) { intel_wakeref_t wakeref; + intel_gt_sysfs_unregister(gt); intel_rps_driver_unregister(>->rps); + intel_gsc_fini(>->gsc); - intel_pxp_fini(>->pxp); + /* + * If we unload the driver and wedge before the GSC worker is complete, + * the worker will hit an error on its submission to the GSC engine and + * then exit. This is hard to hit for a user, but it is reproducible + * with skipping selftests. The error is handled gracefully by the + * worker, so there are no functional issues, but we still end up with + * an error message in dmesg, which is something we want to avoid as + * this is a supported scenario. We could modify the worker to better + * handle a wedging occurring during its execution, but that gets + * complicated for a couple of reasons: + * - We do want the error on runtime wedging, because there are + * implications for subsystems outside of GT (i.e., PXP, HDCP), it's + * only the error on driver unload that we want to silence. + * - The worker is responsible for multiple submissions (GSC FW load, + * HuC auth, SW proxy), so all of those will have to be adapted to + * handle the wedged_on_fini scenario. + * Therefore, it's much simpler to just wait for the worker to be done + * before wedging on driver removal, also considering that the worker + * will likely already be idle in the great majority of non-selftest + * scenarios. + */ + intel_gsc_uc_flush_work(>->uc.gsc); /* * Upon unregistering the device to prevent any new users, cancel @@ -770,7 +819,7 @@ void intel_gt_driver_unregister(struct intel_gt *gt) /* Scrub all HW state upon release */ with_intel_runtime_pm(gt->uncore->rpm, wakeref) - __intel_gt_reset(gt, ALL_ENGINES); + intel_gt_reset_all_engines(gt); } void intel_gt_driver_release(struct intel_gt *gt) @@ -785,130 +834,239 @@ void intel_gt_driver_release(struct intel_gt *gt) intel_gt_pm_fini(gt); intel_gt_fini_scratch(gt); intel_gt_fini_buffer_pool(gt); + intel_gt_fini_hwconfig(gt); } -void intel_gt_driver_late_release(struct intel_gt *gt) +void intel_gt_driver_late_release_all(struct drm_i915_private *i915) { + struct intel_gt *gt; + unsigned int id; + /* We need to wait for inflight RCU frees to release their grip */ rcu_barrier(); - intel_uc_driver_late_release(>->uc); - intel_gt_fini_requests(gt); - intel_gt_fini_reset(gt); - intel_gt_fini_timelines(gt); - intel_engines_free(gt); + for_each_gt(gt, i915, id) { + intel_uc_driver_late_release(>->uc); + intel_gt_fini_requests(gt); + intel_gt_fini_reset(gt); + intel_gt_fini_timelines(gt); + intel_gt_fini_tlb(gt); + intel_engines_free(gt); + } } -/** - * intel_gt_reg_needs_read_steering - determine whether a register read - * requires explicit steering - * @gt: GT structure - * @reg: the register to check steering requirements for - * @type: type of multicast steering to check - * - * Determines whether @reg needs explicit steering of a specific type for - * reads. - * - * Returns false if @reg does not belong to a register range of the given - * steering type, or if the default (subslice-based) steering IDs are suitable - * for @type steering too. - */ -static bool intel_gt_reg_needs_read_steering(struct intel_gt *gt, - i915_reg_t reg, - enum intel_steering_type type) +static int intel_gt_tile_setup(struct intel_gt *gt, phys_addr_t phys_addr) { - const u32 offset = i915_mmio_reg_offset(reg); - const struct intel_mmio_range *entry; + int ret; + + if (!gt_is_root(gt)) { + struct intel_uncore *uncore; + spinlock_t *irq_lock; + + uncore = drmm_kzalloc(>->i915->drm, sizeof(*uncore), GFP_KERNEL); + if (!uncore) + return -ENOMEM; - if (likely(!intel_gt_needs_read_steering(gt, type))) - return false; + irq_lock = drmm_kzalloc(>->i915->drm, sizeof(*irq_lock), GFP_KERNEL); + if (!irq_lock) + return -ENOMEM; - for (entry = gt->steering_table[type]; entry->end; entry++) { - if (offset >= entry->start && offset <= entry->end) - return true; + gt->uncore = uncore; + gt->irq_lock = irq_lock; + + intel_gt_common_init_early(gt); } - return false; + intel_uncore_init_early(gt->uncore, gt); + + ret = intel_uncore_setup_mmio(gt->uncore, phys_addr); + if (ret) + return ret; + + gt->phys_addr = phys_addr; + + return 0; +} + +int intel_gt_probe_all(struct drm_i915_private *i915) +{ + struct pci_dev *pdev = to_pci_dev(i915->drm.dev); + struct intel_gt *gt = to_gt(i915); + const struct intel_gt_definition *gtdef; + phys_addr_t phys_addr; + unsigned int mmio_bar; + unsigned int i; + int ret; + + mmio_bar = intel_mmio_bar(GRAPHICS_VER(i915)); + phys_addr = pci_resource_start(pdev, mmio_bar); + + /* + * We always have at least one primary GT on any device + * and it has been already initialized early during probe + * in i915_driver_probe() + */ + gt->i915 = i915; + gt->name = "Primary GT"; + gt->info.engine_mask = INTEL_INFO(i915)->platform_engine_mask; + + gt_dbg(gt, "Setting up %s\n", gt->name); + ret = intel_gt_tile_setup(gt, phys_addr); + if (ret) + return ret; + + if (!HAS_EXTRA_GT_LIST(i915)) + return 0; + + for (i = 1, gtdef = &INTEL_INFO(i915)->extra_gt_list[i - 1]; + gtdef->name != NULL; + i++, gtdef = &INTEL_INFO(i915)->extra_gt_list[i - 1]) { + gt = drmm_kzalloc(&i915->drm, sizeof(*gt), GFP_KERNEL); + if (!gt) { + ret = -ENOMEM; + goto err; + } + + gt->i915 = i915; + gt->name = gtdef->name; + gt->type = gtdef->type; + gt->info.engine_mask = gtdef->engine_mask; + gt->info.id = i; + + gt_dbg(gt, "Setting up %s\n", gt->name); + if (GEM_WARN_ON(range_overflows_t(resource_size_t, + gtdef->mapping_base, + SZ_16M, + pci_resource_len(pdev, mmio_bar)))) { + ret = -ENODEV; + goto err; + } + + switch (gtdef->type) { + case GT_TILE: + ret = intel_gt_tile_setup(gt, phys_addr + gtdef->mapping_base); + break; + + case GT_MEDIA: + ret = intel_sa_mediagt_setup(gt, phys_addr + gtdef->mapping_base, + gtdef->gsi_offset); + break; + + case GT_PRIMARY: + /* Primary GT should not appear in extra GT list */ + default: + MISSING_CASE(gtdef->type); + ret = -ENODEV; + } + + if (ret) + goto err; + + i915->gt[i] = gt; + } + + return 0; + +err: + i915_probe_error(i915, "Failed to initialize %s! (%d)\n", gtdef->name, ret); + return ret; +} + +int intel_gt_tiles_init(struct drm_i915_private *i915) +{ + struct intel_gt *gt; + unsigned int id; + int ret; + + for_each_gt(gt, i915, id) { + ret = intel_gt_probe_lmem(gt); + if (ret) + return ret; + } + + return 0; +} + +void intel_gt_info_print(const struct intel_gt_info *info, + struct drm_printer *p) +{ + drm_printf(p, "available engines: %x\n", info->engine_mask); + + intel_sseu_dump(&info->sseu, p); +} + +enum i915_map_type intel_gt_coherent_map_type(struct intel_gt *gt, + struct drm_i915_gem_object *obj, + bool always_coherent) +{ + /* + * Wa_22016122933: always return I915_MAP_WC for Media + * version 13.0 when the object is on the Media GT + */ + if (i915_gem_object_is_lmem(obj) || intel_gt_needs_wa_22016122933(gt)) + return I915_MAP_WC; + if (HAS_LLC(gt->i915) || always_coherent) + return I915_MAP_WB; + else + return I915_MAP_WC; +} + +bool intel_gt_needs_wa_16018031267(struct intel_gt *gt) +{ + /* Wa_16018031267, Wa_16018063123 */ + return IS_GFX_GT_IP_RANGE(gt, IP_VER(12, 55), IP_VER(12, 71)); +} + +bool intel_gt_needs_wa_22016122933(struct intel_gt *gt) +{ + return MEDIA_VER_FULL(gt->i915) == IP_VER(13, 0) && gt->type == GT_MEDIA; +} + +static void __intel_gt_bind_context_set_ready(struct intel_gt *gt, bool ready) +{ + struct intel_engine_cs *engine = gt->engine[BCS0]; + + if (engine && engine->bind_context) + engine->bind_context_ready = ready; } /** - * intel_gt_get_valid_steering - determines valid IDs for a class of MCR steering + * intel_gt_bind_context_set_ready - Set the context binding as ready + * * @gt: GT structure - * @type: multicast register type - * @sliceid: Slice ID returned - * @subsliceid: Subslice ID returned * - * Determines sliceid and subsliceid values that will steer reads - * of a specific multicast register class to a valid value. + * This function marks the binder context as ready. */ -static void intel_gt_get_valid_steering(struct intel_gt *gt, - enum intel_steering_type type, - u8 *sliceid, u8 *subsliceid) -{ - switch (type) { - case L3BANK: - GEM_DEBUG_WARN_ON(!gt->info.l3bank_mask); /* should be impossible! */ - - *sliceid = 0; /* unused */ - *subsliceid = __ffs(gt->info.l3bank_mask); - break; - case MSLICE: - GEM_DEBUG_WARN_ON(!gt->info.mslice_mask); /* should be impossible! */ - - *sliceid = __ffs(gt->info.mslice_mask); - *subsliceid = 0; /* unused */ - break; - case LNCF: - GEM_DEBUG_WARN_ON(!gt->info.mslice_mask); /* should be impossible! */ - - /* - * An LNCF is always present if its mslice is present, so we - * can safely just steer to LNCF 0 in all cases. - */ - *sliceid = __ffs(gt->info.mslice_mask) << 1; - *subsliceid = 0; /* unused */ - break; - default: - MISSING_CASE(type); - *sliceid = 0; - *subsliceid = 0; - } +void intel_gt_bind_context_set_ready(struct intel_gt *gt) +{ + __intel_gt_bind_context_set_ready(gt, true); } /** - * intel_gt_read_register_fw - reads a GT register with support for multicast + * intel_gt_bind_context_set_unready - Set the context binding as ready * @gt: GT structure - * @reg: register to read * - * This function will read a GT register. If the register is a multicast - * register, the read will be steered to a valid instance (i.e., one that - * isn't fused off or powered down by power gating). - * - * Returns the value from a valid instance of @reg. + * This function marks the binder context as not ready. */ -u32 intel_gt_read_register_fw(struct intel_gt *gt, i915_reg_t reg) -{ - int type; - u8 sliceid, subsliceid; - - for (type = 0; type < NUM_STEERING_TYPES; type++) { - if (intel_gt_reg_needs_read_steering(gt, reg, type)) { - intel_gt_get_valid_steering(gt, type, &sliceid, - &subsliceid); - return intel_uncore_read_with_mcr_steering_fw(gt->uncore, - reg, - sliceid, - subsliceid); - } - } - return intel_uncore_read_fw(gt->uncore, reg); +void intel_gt_bind_context_set_unready(struct intel_gt *gt) +{ + __intel_gt_bind_context_set_ready(gt, false); } -void intel_gt_info_print(const struct intel_gt_info *info, - struct drm_printer *p) +/** + * intel_gt_is_bind_context_ready - Check if context binding is ready + * + * @gt: GT structure + * + * This function returns binder context's ready status. + */ +bool intel_gt_is_bind_context_ready(struct intel_gt *gt) { - drm_printf(p, "available engines: %x\n", info->engine_mask); + struct intel_engine_cs *engine = gt->engine[BCS0]; - intel_sseu_dump(&info->sseu, p); + if (engine) + return engine->bind_context_ready; + + return false; } |