diff options
| -rw-r--r-- | drivers/gpu/drm/i915/Makefile | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h | 91 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/uc/intel_guc.c | 13 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/uc/intel_guc.h | 9 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c | 127 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c | 374 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/uc/intel_guc_capture.h | 22 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h | 8 |
8 files changed, 628 insertions, 17 deletions
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index 9801aaa9885d..c837a29ffac8 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -186,6 +186,7 @@ i915-y += gt/uc/intel_uc.o \ gt/uc/intel_uc_fw.o \ gt/uc/intel_guc.o \ gt/uc/intel_guc_ads.o \ + gt/uc/intel_guc_capture.o \ gt/uc/intel_guc_ct.o \ gt/uc/intel_guc_debugfs.o \ gt/uc/intel_guc_fw.o \ diff --git a/drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h b/drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h new file mode 100644 index 000000000000..919ed985f09a --- /dev/null +++ b/drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h @@ -0,0 +1,91 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2021-2022 Intel Corporation + */ + +#ifndef _INTEL_GUC_CAPTURE_FWIF_H +#define _INTEL_GUC_CAPTURE_FWIF_H + +#include <linux/types.h> +#include "intel_guc_fwif.h" + +struct intel_guc; +struct file; + +/** + * struct guc_debug_capture_list_header / struct guc_debug_capture_list + * + * As part of ADS registration, these header structures (followed by + * an array of 'struct guc_mmio_reg' entries) are used to register with + * GuC microkernel the list of registers we want it to dump out prior + * to a engine reset. + */ +struct guc_debug_capture_list_header { + u32 info; +#define GUC_CAPTURELISTHDR_NUMDESCR GENMASK(15, 0) +} __packed; + +struct guc_debug_capture_list { + struct guc_debug_capture_list_header header; + struct guc_mmio_reg regs[0]; +} __packed; + +/** + * struct __guc_mmio_reg_descr / struct __guc_mmio_reg_descr_group + * + * intel_guc_capture module uses these structures to maintain static + * tables (per unique platform) that consists of lists of registers + * (offsets, names, flags,...) that are used at the ADS regisration + * time as well as during runtime processing and reporting of error- + * capture states generated by GuC just prior to engine reset events. + */ +struct __guc_mmio_reg_descr { + i915_reg_t reg; + u32 flags; + u32 mask; + const char *regname; +}; + +struct __guc_mmio_reg_descr_group { + const struct __guc_mmio_reg_descr *list; + u32 num_regs; + u32 owner; /* see enum guc_capture_owner */ + u32 type; /* see enum guc_capture_type */ + u32 engine; /* as per MAX_ENGINE_CLASS */ +}; + +/** + * struct __guc_capture_ads_cache + * + * A structure to cache register lists that were populated and registered + * with GuC at startup during ADS registration. This allows much quicker + * GuC resets without re-parsing all the tables for the given gt. + */ +struct __guc_capture_ads_cache { + bool is_valid; + void *ptr; + size_t size; + int status; +}; + +/** + * struct intel_guc_state_capture + * + * Internal context of the intel_guc_capture module. + */ +struct intel_guc_state_capture { + /** + * @reglists: static table of register lists used for error-capture state. + */ + const struct __guc_mmio_reg_descr_group *reglists; + + /** + * @ads_cache: cached register lists that is ADS format ready + */ + struct __guc_capture_ads_cache ads_cache[GUC_CAPTURE_LIST_INDEX_MAX] + [GUC_CAPTURE_LIST_TYPE_MAX] + [GUC_MAX_ENGINE_CLASSES]; + void *ads_null_cache; +}; + +#endif /* _INTEL_GUC_CAPTURE_FWIF_H */ diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c index 447a976c9f25..cda7e4bb8bac 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c @@ -9,8 +9,9 @@ #include "gt/intel_gt_pm_irq.h" #include "gt/intel_gt_regs.h" #include "intel_guc.h" -#include "intel_guc_slpc.h" #include "intel_guc_ads.h" +#include "intel_guc_capture.h" +#include "intel_guc_slpc.h" #include "intel_guc_submission.h" #include "i915_drv.h" #include "i915_irq.h" @@ -362,9 +363,14 @@ int intel_guc_init(struct intel_guc *guc) if (ret) goto err_fw; - ret = intel_guc_ads_create(guc); + ret = intel_guc_capture_init(guc); if (ret) goto err_log; + + ret = intel_guc_ads_create(guc); + if (ret) + goto err_capture; + GEM_BUG_ON(!guc->ads_vma); ret = intel_guc_ct_init(&guc->ct); @@ -403,6 +409,8 @@ err_ct: intel_guc_ct_fini(&guc->ct); err_ads: intel_guc_ads_destroy(guc); +err_capture: + intel_guc_capture_destroy(guc); err_log: intel_guc_log_destroy(&guc->log); err_fw: @@ -430,6 +438,7 @@ void intel_guc_fini(struct intel_guc *guc) intel_guc_ct_fini(&guc->ct); intel_guc_ads_destroy(guc); + intel_guc_capture_destroy(guc); intel_guc_log_destroy(&guc->log); intel_uc_fw_fini(&guc->fw); } diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc.h index e439e6c1ac8b..de32367831c6 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.h @@ -10,18 +10,19 @@ #include <linux/iosys-map.h> #include <linux/xarray.h> -#include "intel_uncore.h" +#include "intel_guc_ct.h" #include "intel_guc_fw.h" #include "intel_guc_fwif.h" -#include "intel_guc_ct.h" #include "intel_guc_log.h" #include "intel_guc_reg.h" #include "intel_guc_slpc_types.h" #include "intel_uc_fw.h" +#include "intel_uncore.h" #include "i915_utils.h" #include "i915_vma.h" struct __guc_ads_blob; +struct intel_guc_state_capture; /** * struct intel_guc - Top level structure of GuC. @@ -38,6 +39,8 @@ struct intel_guc { struct intel_guc_ct ct; /** @slpc: sub-structure containing SLPC related data and objects */ struct intel_guc_slpc slpc; + /** @capture: the error-state-capture module's data and objects */ + struct intel_guc_state_capture *capture; /** @sched_engine: Global engine used to submit requests to GuC */ struct i915_sched_engine *sched_engine; @@ -162,6 +165,8 @@ struct intel_guc { struct guc_mmio_reg *ads_regset; /** @ads_golden_ctxt_size: size of the golden contexts in the ADS */ u32 ads_golden_ctxt_size; + /** @ads_capture_size: size of register lists in the ADS used for error capture */ + u32 ads_capture_size; /** @ads_engine_usage_size: size of engine usage in the ADS */ u32 ads_engine_usage_size; 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 feb372fc0b48..17004bca4d24 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c @@ -11,6 +11,7 @@ #include "gt/intel_lrc.h" #include "gt/shmem_utils.h" #include "intel_guc_ads.h" +#include "intel_guc_capture.h" #include "intel_guc_fwif.h" #include "intel_uc.h" #include "i915_drv.h" @@ -86,8 +87,7 @@ static u32 guc_ads_golden_ctxt_size(struct intel_guc *guc) static u32 guc_ads_capture_size(struct intel_guc *guc) { - /* FIXME: Allocate a proper capture list */ - return PAGE_ALIGN(PAGE_SIZE); + return PAGE_ALIGN(guc->ads_capture_size); } static u32 guc_ads_private_data_size(struct intel_guc *guc) @@ -611,24 +611,119 @@ static void guc_init_golden_context(struct intel_guc *guc) GEM_BUG_ON(guc->ads_golden_ctxt_size != total_size); } -static void guc_capture_list_init(struct intel_guc *guc) +static int +guc_capture_prep_lists(struct intel_guc *guc) { + struct intel_gt *gt = guc_to_gt(guc); + struct drm_i915_private *i915 = guc_to_gt(guc)->i915; + u32 ads_ggtt, capture_offset, null_ggtt, total_size = 0; + struct guc_gt_system_info local_info; + struct iosys_map info_map; + bool ads_is_mapped; + size_t size = 0; + void *ptr; int i, j; - u32 addr_ggtt, offset; - offset = guc_ads_capture_offset(guc); - addr_ggtt = intel_guc_ggtt_offset(guc, guc->ads_vma) + offset; + ads_is_mapped = !iosys_map_is_null(&guc->ads_map); + if (ads_is_mapped) { + capture_offset = guc_ads_capture_offset(guc); + ads_ggtt = intel_guc_ggtt_offset(guc, guc->ads_vma); + info_map = IOSYS_MAP_INIT_OFFSET(&guc->ads_map, + offsetof(struct __guc_ads_blob, system_info)); + } else { + memset(&local_info, 0, sizeof(local_info)); + iosys_map_set_vaddr(&info_map, &local_info); + fill_engine_enable_masks(gt, &info_map); + } - /* FIXME: Populate a proper capture list */ + /* first, set aside the first page for a capture_list with zero descriptors */ + total_size = PAGE_SIZE; + if (ads_is_mapped) { + if (!intel_guc_capture_getnullheader(guc, &ptr, &size)) + iosys_map_memcpy_to(&guc->ads_map, capture_offset, ptr, size); + null_ggtt = ads_ggtt + capture_offset; + capture_offset += PAGE_SIZE; + } for (i = 0; i < GUC_CAPTURE_LIST_INDEX_MAX; i++) { for (j = 0; j < GUC_MAX_ENGINE_CLASSES; j++) { - ads_blob_write(guc, ads.capture_instance[i][j], addr_ggtt); - ads_blob_write(guc, ads.capture_class[i][j], addr_ggtt); - } - ads_blob_write(guc, ads.capture_global[i], addr_ggtt); + /* null list if we dont have said engine or list */ + if (!info_map_read(&info_map, engine_enabled_masks[j])) { + if (ads_is_mapped) { + ads_blob_write(guc, ads.capture_class[i][j], null_ggtt); + ads_blob_write(guc, ads.capture_instance[i][j], null_ggtt); + } + continue; + } + if (intel_guc_capture_getlistsize(guc, i, + GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS, + j, &size)) { + if (ads_is_mapped) + ads_blob_write(guc, ads.capture_class[i][j], null_ggtt); + goto engine_instance_list; + } + total_size += size; + if (ads_is_mapped) { + if (total_size > guc->ads_capture_size || + intel_guc_capture_getlist(guc, i, + GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS, + j, &ptr)) { + ads_blob_write(guc, ads.capture_class[i][j], null_ggtt); + continue; + } + ads_blob_write(guc, ads.capture_class[i][j], ads_ggtt + + capture_offset); + iosys_map_memcpy_to(&guc->ads_map, capture_offset, ptr, size); + capture_offset += size; + } +engine_instance_list: + if (intel_guc_capture_getlistsize(guc, i, + GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE, + j, &size)) { + if (ads_is_mapped) + ads_blob_write(guc, ads.capture_instance[i][j], null_ggtt); + continue; + } + total_size += size; + if (ads_is_mapped) { + if (total_size > guc->ads_capture_size || + intel_guc_capture_getlist(guc, i, + GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE, + j, &ptr)) { + ads_blob_write(guc, ads.capture_instance[i][j], null_ggtt); + continue; + } + ads_blob_write(guc, ads.capture_instance[i][j], ads_ggtt + + capture_offset); + iosys_map_memcpy_to(&guc->ads_map, capture_offset, ptr, size); + capture_offset += size; + } + } + if (intel_guc_capture_getlistsize(guc, i, GUC_CAPTURE_LIST_TYPE_GLOBAL, 0, &size)) { + if (ads_is_mapped) + ads_blob_write(guc, ads.capture_global[i], null_ggtt); + continue; + } + total_size += size; + if (ads_is_mapped) { + if (total_size > guc->ads_capture_size || + intel_guc_capture_getlist(guc, i, GUC_CAPTURE_LIST_TYPE_GLOBAL, 0, + &ptr)) { + ads_blob_write(guc, ads.capture_global[i], null_ggtt); + continue; + } + ads_blob_write(guc, ads.capture_global[i], ads_ggtt + capture_offset); + iosys_map_memcpy_to(&guc->ads_map, capture_offset, ptr, size); + capture_offset += size; + } } + + if (guc->ads_capture_size && guc->ads_capture_size != PAGE_ALIGN(total_size)) + drm_warn(&i915->drm, "GuC->ADS->Capture alloc size changed from %d to %d\n", + guc->ads_capture_size, PAGE_ALIGN(total_size)); + + return PAGE_ALIGN(total_size); } static void __guc_ads_init(struct intel_guc *guc) @@ -666,8 +761,8 @@ static void __guc_ads_init(struct intel_guc *guc) base = intel_guc_ggtt_offset(guc, guc->ads_vma); - /* Capture list for hang debug */ - guc_capture_list_init(guc); + /* Lists for error capture debug */ + guc_capture_prep_lists(guc); /* ADS */ ads_blob_write(guc, ads.scheduler_policies, base + @@ -715,6 +810,12 @@ int intel_guc_ads_create(struct intel_guc *guc) return ret; guc->ads_golden_ctxt_size = ret; + /* Likewise the capture lists: */ + ret = guc_capture_prep_lists(guc); + if (ret < 0) + return ret; + guc->ads_capture_size = ret; + /* Now the total size can be determined: */ size = guc_ads_blob_size(guc); diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c new file mode 100644 index 000000000000..4adfa14699d4 --- /dev/null +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c @@ -0,0 +1,374 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2021-2022 Intel Corporation + */ + +#include <linux/types.h> + +#include <drm/drm_print.h> + +#include "gt/intel_engine_regs.h" +#include "gt/intel_gt.h" +#include "gt/intel_gt_regs.h" +#include "guc_capture_fwif.h" +#include "intel_guc_capture.h" +#include "intel_guc_fwif.h" +#include "i915_drv.h" +#include "i915_memcpy.h" +#include "i915_reg.h" + +/* + * Define all device tables of GuC error capture register lists + * NOTE: For engine-registers, GuC only needs the register offsets + * from the engine-mmio-base + */ +/* XE_LPD - Global */ +static const struct __guc_mmio_reg_descr xe_lpd_global_regs[] = { + { GEN12_RING_FAULT_REG, 0, 0, "GEN12_RING_FAULT_REG" } +}; + +/* XE_LPD - Render / Compute Per-Class */ +static const struct __guc_mmio_reg_descr xe_lpd_rc_class_regs[] = { + { EIR, 0, 0, "EIR" } +}; + +/* XE_LPD - Render / Compute Per-Engine-Instance */ +static const struct __guc_mmio_reg_descr xe_lpd_rc_inst_regs[] = { + { RING_HEAD(0), 0, 0, "RING_HEAD" }, + { RING_TAIL(0), 0, 0, "RING_TAIL" }, +}; + +/* XE_LPD - Media Decode/Encode Per-Class */ +static const struct __guc_mmio_reg_descr xe_lpd_vd_class_regs[] = { +}; + +/* XE_LPD - Media Decode/Encode Per-Engine-Instance */ +static const struct __guc_mmio_reg_descr xe_lpd_vd_inst_regs[] = { + { RING_HEAD(0), 0, 0, "RING_HEAD" }, + { RING_TAIL(0), 0, 0, "RING_TAIL" }, +}; + +/* XE_LPD - Video Enhancement Per-Class */ +static const struct __guc_mmio_reg_descr xe_lpd_vec_class_regs[] = { +}; + +/* XE_LPD - Video Enhancement Per-Engine-Instance */ +static const struct __guc_mmio_reg_descr xe_lpd_vec_inst_regs[] = { + { RING_HEAD(0), 0, 0, "RING_HEAD" }, + { RING_TAIL(0), 0, 0, "RING_TAIL" }, +}; + +#define TO_GCAP_DEF_OWNER(x) (GUC_CAPTURE_LIST_INDEX_##x) +#define TO_GCAP_DEF_TYPE(x) (GUC_CAPTURE_LIST_TYPE_##x) +#define MAKE_REGLIST(regslist, regsowner, regstype, class) \ + { \ + regslist, \ + ARRAY_SIZE(regslist), \ + TO_GCAP_DEF_OWNER(regsowner), \ + TO_GCAP_DEF_TYPE(regstype), \ + class, \ + } + +/* List of lists */ +static const struct __guc_mmio_reg_descr_group xe_lpd_lists[] = { + MAKE_REGLIST(xe_lpd_global_regs, PF, GLOBAL, 0), + MAKE_REGLIST(xe_lpd_rc_class_regs, PF, ENGINE_CLASS, GUC_RENDER_CLASS), + MAKE_REGLIST(xe_lpd_rc_inst_regs, PF, ENGINE_INSTANCE, GUC_RENDER_CLASS), + MAKE_REGLIST(xe_lpd_vd_class_regs, PF, ENGINE_CLASS, GUC_VIDEO_CLASS), + MAKE_REGLIST(xe_lpd_vd_inst_regs, PF, ENGINE_INSTANCE, GUC_VIDEO_CLASS), + MAKE_REGLIST(xe_lpd_vec_class_regs, PF, ENGINE_CLASS, GUC_VIDEOENHANCE_CLASS), + MAKE_REGLIST(xe_lpd_vec_inst_regs, PF, ENGINE_INSTANCE, GUC_VIDEOENHANCE_CLASS), + {} +}; + +static const struct __guc_mmio_reg_descr_group * +guc_capture_get_device_reglist(struct intel_guc *guc) +{ + struct drm_i915_private *i915 = guc_to_gt(guc)->i915; + + if (IS_TIGERLAKE(i915) || IS_ROCKETLAKE(i915) || + IS_ALDERLAKE_S(i915) || IS_ALDERLAKE_P(i915)) { + return xe_lpd_lists; + } + + return NULL; +} + +static const struct __guc_mmio_reg_descr_group * +guc_capture_get_one_list(const struct __guc_mmio_reg_descr_group *reglists, + u32 owner, u32 type, u32 id) +{ + int i; + + if (!reglists) + return NULL; + + for (i = 0; reglists[i].list; ++i) { + if (reglists[i].owner == owner && reglists[i].type == type && + (reglists[i].engine == id || reglists[i].type == GUC_CAPTURE_LIST_TYPE_GLOBAL)) + return ®lists[i]; + } + + return NULL; +} + +static const char * +__stringify_owner(u32 owner) +{ + switch (owner) { + case GUC_CAPTURE_LIST_INDEX_PF: + return "PF"; + case GUC_CAPTURE_LIST_INDEX_VF: + return "VF"; + default: + return "unknown"; + } + + return ""; +} + +static const char * +__stringify_type(u32 type) +{ + switch (type) { + case GUC_CAPTURE_LIST_TYPE_GLOBAL: + return "Global"; + case GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS: + return "Class"; + case GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE: + return "Instance"; + default: + return "unknown"; + } + + return ""; +} + +static const char * +__stringify_engclass(u32 class) +{ + switch (class) { + case GUC_RENDER_CLASS: + return "Render"; + case GUC_VIDEO_CLASS: + return "Video"; + case GUC_VIDEOENHANCE_CLASS: + return "VideoEnhance"; + case GUC_BLITTER_CLASS: + return "Blitter"; + case GUC_COMPUTE_CLASS: + return "Compute"; + default: + return "unknown"; + } + + return ""; +} + +static void +guc_capture_warn_with_list_info(struct drm_i915_private *i915, char *msg, + u32 owner, u32 type, u32 classid) +{ + if (type == GUC_CAPTURE_LIST_TYPE_GLOBAL) + drm_dbg(&i915->drm, "GuC-capture: %s for %s %s-Registers.\n", msg, + __stringify_owner(owner), __stringify_type(type)); + else + drm_dbg(&i915->drm, "GuC-capture: %s for %s %s-Registers on %s-Engine\n", msg, + __stringify_owner(owner), __stringify_type(type), + __stringify_engclass(classid)); +} + +static int +guc_capture_list_init(struct intel_guc *guc, u32 owner, u32 type, u32 classid, + struct guc_mmio_reg *ptr, u16 num_entries) +{ + u32 i = 0; + struct drm_i915_private *i915 = guc_to_gt(guc)->i915; + const struct __guc_mmio_reg_descr_group *reglists = guc->capture->reglists; + const struct __guc_mmio_reg_descr_group *match; + + if (!reglists) + return -ENODEV; + + match = guc_capture_get_one_list(reglists, owner, type, classid); + if (match) { + for (i = 0; i < num_entries && i < match->num_regs; ++i) { + ptr[i].offset = match->list[i].reg.reg; + ptr[i].value = 0xDEADF00D; + ptr[i].flags = match->list[i].flags; + ptr[i].mask = match->list[i].mask; + } + return 0; + } + + guc_capture_warn_with_list_info(i915, "Missing register list init", owner, type, + classid); + + return -ENODATA; +} + +static int +guc_cap_list_num_regs(struct intel_guc_state_capture *gc, u32 owner, u32 type, u32 classid) +{ + const struct __guc_mmio_reg_descr_group *match; + + match = guc_capture_get_one_list(gc->reglists, owner, type, classid); + if (!match) + return 0; + + return match->num_regs; +} + +int +intel_guc_capture_getlistsize(struct intel_guc *guc, u32 owner, u32 type, u32 classid, + size_t *size) +{ + struct drm_i915_private *i915 = guc_to_gt(guc)->i915; + struct intel_guc_state_capture *gc = guc->capture; + struct __guc_capture_ads_cache *cache = &gc->ads_cache[owner][type][classid]; + int num_regs; + + if (!gc->reglists) + return -ENODEV; + + if (cache->is_valid) { + *size = cache->size; + return cache->status; + } + + num_regs = guc_cap_list_num_regs(gc, owner, type, classid); + if (!num_regs) { + guc_capture_warn_with_list_info(i915, "Missing register list size", + owner, type, classid); + return -ENODATA; + } + + *size = PAGE_ALIGN((sizeof(struct guc_debug_capture_list)) + + (num_regs * sizeof(struct guc_mmio_reg))); + + return 0; +} + +int +intel_guc_capture_getlist(struct intel_guc *guc, u32 owner, u32 type, u32 classid, + void **outptr) +{ + struct intel_guc_state_capture *gc = guc->capture; + struct __guc_capture_ads_cache *cache = &gc->ads_cache[owner][type][classid]; + struct drm_i915_private *i915 = guc_to_gt(guc)->i915; + struct guc_debug_capture_list *listnode; + int ret, num_regs; + u8 *caplist, *tmp; + size_t size = 0; + + if (!gc->reglists) + return -ENODEV; + + if (cache->is_valid) { + *outptr = cache->ptr; + return cache->status; + } + + ret = intel_guc_capture_getlistsize(guc, owner, type, classid, &size); + if (ret) { + cache->is_valid = true; + cache->ptr = NULL; + cache->size = 0; + cache->status = ret; + return ret; + } + + caplist = kzalloc(size, GFP_KERNEL); + if (!caplist) { + drm_dbg(&i915->drm, "GuC-capture: failed to alloc cached caplist"); + return -ENOMEM; + } + + /* populate capture list header */ + tmp = caplist; + num_regs = guc_cap_list_num_regs(guc->capture, owner, type, classid); + listnode = (struct guc_debug_capture_list *)tmp; + listnode->header.info = FIELD_PREP(GUC_CAPTURELISTHDR_NUMDESCR, (u32)num_regs); + + /* populate list of register descriptor */ + tmp += sizeof(struct guc_debug_capture_list); + guc_capture_list_init(guc, owner, type, classid, (struct guc_mmio_reg *)tmp, num_regs); + + /* cache this list */ + cache->is_valid = true; + cache->ptr = caplist; + cache->size = size; + cache->status = 0; + + *outptr = caplist; + + return 0; +} + +int +intel_guc_capture_getnullheader(struct intel_guc *guc, + void **outptr, size_t *size) +{ + struct intel_guc_state_capture *gc = guc->capture; + struct drm_i915_private *i915 = guc_to_gt(guc)->i915; + int tmp = sizeof(u32) * 4; + void *null_header; + + if (gc->ads_null_cache) { + *outptr = gc->ads_null_cache; + *size = tmp; + return 0; + } + + null_header = kzalloc(tmp, GFP_KERNEL); + if (!null_header) { + drm_dbg(&i915->drm, "GuC-capture: failed to alloc cached nulllist"); + return -ENOMEM; + } + + gc->ads_null_cache = null_header; + *outptr = null_header; + *size = tmp; + + return 0; +} + +static void +guc_capture_free_ads_cache(struct intel_guc_state_capture *gc) +{ + int i, j, k; + struct __guc_capture_ads_cache *cache; + + for (i = 0; i < GUC_CAPTURE_LIST_INDEX_MAX; ++i) { + for (j = 0; j < GUC_CAPTURE_LIST_TYPE_MAX; ++j) { + for (k = 0; k < GUC_MAX_ENGINE_CLASSES; ++k) { + cache = &gc->ads_cache[i][j][k]; + if (cache->is_valid) + kfree(cache->ptr); + } + } + } + kfree(gc->ads_null_cache); +} + +void intel_guc_capture_destroy(struct intel_guc *guc) +{ + if (!guc->capture) + return; + + guc_capture_free_ads_cache(guc->capture); + + kfree(guc->capture); + guc->capture = NULL; +} + +int intel_guc_capture_init(struct intel_guc *guc) +{ + guc->capture = kzalloc(sizeof(*guc->capture), GFP_KERNEL); + if (!guc->capture) + return -ENOMEM; + + guc->capture->reglists = guc_capture_get_device_reglist(guc); + + return 0; +} diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.h new file mode 100644 index 000000000000..8de7704e12eb --- /dev/null +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2021-2021 Intel Corporation + */ + +#ifndef _INTEL_GUC_CAPTURE_H +#define _INTEL_GUC_CAPTURE_H + +#include <linux/types.h> + +struct guc_gt_system_info; +struct intel_guc; + +int intel_guc_capture_getlist(struct intel_guc *guc, u32 owner, u32 type, u32 classid, + void **outptr); +int intel_guc_capture_getlistsize(struct intel_guc *guc, u32 owner, u32 type, u32 classid, + size_t *size); +int intel_guc_capture_getnullheader(struct intel_guc *guc, void **outptr, size_t *size); +void intel_guc_capture_destroy(struct intel_guc *guc); +int intel_guc_capture_init(struct intel_guc *guc); + +#endif /* _INTEL_GUC_CAPTURE_H */ diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h index 78590372b85f..d18037493953 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h @@ -314,6 +314,14 @@ enum { GUC_CAPTURE_LIST_INDEX_MAX = 2, }; +/*Register-types of GuC capture register lists */ +enum guc_capture_type { + GUC_CAPTURE_LIST_TYPE_GLOBAL = 0, + GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS, + GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE, + GUC_CAPTURE_LIST_TYPE_MAX, +}; + /* GuC Additional Data Struct */ struct guc_ads { struct guc_mmio_reg_set reg_state_list[GUC_MAX_ENGINE_CLASSES][GUC_MAX_INSTANCES_PER_CLASS]; 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