[Intel-gfx] [RFC v3 7/7] drm/i915/guc: Print the GuC error capture output register list.
Alan Previn
alan.previn.teres.alexis at intel.com
Tue Jan 11 09:30:17 UTC 2022
Print the GuC captured error state register list (string names
and values) when gpu_coredump_state printout is invoked via
the i915 debugfs for flushing the gpu error-state that was
captured prior.
Since GuC could have reported multiple engine register dumps
in a single notification event, parse the captured data
(appearing as a stream of structures) to identify each dump as
a different 'engine-capture-group-output'.
Finally, for each 'engine-capture-group-output' that is found,
verify if the engine register dump corresponds to the
engine_coredump content that was previously populated by the
i915_gpu_coredump function. That function would have copied
the context's vma's including the bacth buffer during the
G2H-context-reset notification that occurred earlier. Perform
this verification check by comparing guc_id, lrca and engine-
instance obtained from the 'engine-capture-group-output' vs a
copy of that same info taken during i915_gpu_coredump. If
they match, then print those vma's as well (such as the batch
buffers).
Signed-off-by: Alan Previn <alan.previn.teres.alexis at intel.com>
---
drivers/gpu/drm/i915/gt/intel_engine_cs.c | 4 +-
.../gpu/drm/i915/gt/uc/intel_guc_capture.c | 437 ++++++++++++++++++
.../gpu/drm/i915/gt/uc/intel_guc_capture.h | 10 +-
drivers/gpu/drm/i915/i915_gpu_error.c | 65 ++-
drivers/gpu/drm/i915/i915_gpu_error.h | 14 +
5 files changed, 507 insertions(+), 23 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
index 548d599c09dc..2b8a693ed2d8 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -1627,9 +1627,7 @@ static void intel_engine_print_registers(struct intel_engine_cs *engine,
drm_printf(m, "\tIPEHR: 0x%08x\n", ENGINE_READ(engine, IPEHR));
}
- if (intel_engine_uses_guc(engine)) {
- /* nothing to print yet */
- } else if (HAS_EXECLISTS(dev_priv)) {
+ if (HAS_EXECLISTS(dev_priv) && !intel_engine_uses_guc(engine)) {
struct i915_request * const *port, *rq;
const u32 *hws =
&engine->status_page.addr[I915_HWS_CSB_BUF0_INDEX];
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c
index 048b1b7b9259..04b6d25abd47 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c
@@ -660,8 +660,420 @@ int intel_guc_capture_output_min_size_est(struct intel_guc *guc)
* --> G2H STATE_CAPTURE_NOTIFICATION
* L--> intel_guc_capture_store_snapshot
* L--> Copies from B (head->tail) into C
+ *
+ * GUC --> notify context reset:
+ * -----------------------------
+ * --> G2H CONTEXT RESET
+ * L--> guc_handle_context_reset --> i915_capture_error_state
+ * --> i915_gpu_coredump --> intel_guc_capture_store_ptr
+ * L--> keep a ptr to capture_store in
+ * i915_gpu_coredump struct.
+ *
+ * User Sysfs / Debugfs
+ * --------------------
+ * --> i915_gpu_coredump_copy_to_buffer->
+ * L--> err_print_to_sgl --> err_print_gt
+ * L--> error_print_guc_captures
+ * L--> loop: intel_guc_capture_out_print_next_group
+ *
*/
+#if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
+
+static const char *
+guc_capture_register_to_string(const struct intel_guc *guc, u32 owner, u32 type,
+ u32 class, u32 id, u32 offset, u32 *is_ext)
+{
+ struct __guc_mmio_reg_descr_group *reglists = guc->capture.priv->reglists;
+ struct __guc_mmio_reg_descr_group *match;
+ int num_regs, j;
+
+ *is_ext = 0;
+ if (!reglists)
+ return NULL;
+
+ match = guc_capture_get_one_list(reglists, owner, type, id);
+
+ if (match) {
+ for (num_regs = match->num_regs, j = 0; j < num_regs; ++j) {
+ if (offset == match->list[j].reg.reg)
+ return match->list[j].regname;
+ }
+ }
+ if (match->ext) {
+ for (num_regs = match->num_ext, j = 0; j < num_regs; ++j) {
+ if (offset == match->ext[j].reg.reg) {
+ *is_ext = 1;
+ return match->ext[j].regname;
+ }
+ }
+ }
+
+ return NULL;
+}
+
+static int
+guc_capture_store_remove_dw(struct guc_capture_out_store *store, u32 *bytesleft,
+ u32 *dw)
+{
+ int tries = 2;
+ int avail = 0;
+ u32 *src_data;
+
+ if (!*bytesleft)
+ return 0;
+
+ while (tries--) {
+ avail = CIRC_CNT_TO_END(store->head, store->tail, store->size);
+ if (avail >= sizeof(u32)) {
+ src_data = (u32 *)(store->addr + store->tail);
+ *dw = *src_data;
+ store->tail = (store->tail + 4) & (store->size - 1);
+ *bytesleft -= 4;
+ return 4;
+ }
+ if (store->tail == (store->size - 1) && store->head > 0)
+ store->tail = 0;
+ }
+
+ return 0;
+}
+
+static int
+guc_capture_store_get_group_hdr(const struct intel_guc *guc,
+ struct guc_capture_out_store *store, u32 *bytesleft,
+ struct guc_state_capture_group_header_t *ghdr)
+{
+ int read = 0;
+ int fullsize = sizeof(struct guc_state_capture_group_header_t);
+
+ if (fullsize > *bytesleft)
+ return -1;
+
+ if (CIRC_CNT_TO_END(store->head, store->tail, store->size) >= fullsize) {
+ memcpy(ghdr, (store->addr + store->tail), fullsize);
+ store->tail = (store->tail + fullsize) & (store->size - 1);
+ *bytesleft -= fullsize;
+ return 0;
+ }
+
+ read += guc_capture_store_remove_dw(store, bytesleft, &ghdr->reserved1);
+ read += guc_capture_store_remove_dw(store, bytesleft, &ghdr->info);
+ if (read != sizeof(*ghdr))
+ return -1;
+
+ return 0;
+}
+
+static int
+guc_capture_store_get_data_hdr(const struct intel_guc *guc,
+ struct guc_capture_out_store *store, u32 *bytesleft,
+ struct guc_state_capture_header_t *hdr)
+{
+ int read = 0;
+ int fullsize = sizeof(struct guc_state_capture_header_t);
+
+ if (fullsize > *bytesleft)
+ return -1;
+
+ if (CIRC_CNT_TO_END(store->head, store->tail, store->size) >= fullsize) {
+ memcpy(hdr, (store->addr + store->tail), fullsize);
+ store->tail = (store->tail + fullsize) & (store->size - 1);
+ *bytesleft -= fullsize;
+ return 0;
+ }
+
+ read += guc_capture_store_remove_dw(store, bytesleft, &hdr->reserved1);
+ read += guc_capture_store_remove_dw(store, bytesleft, &hdr->info);
+ read += guc_capture_store_remove_dw(store, bytesleft, &hdr->lrca);
+ read += guc_capture_store_remove_dw(store, bytesleft, &hdr->guc_id);
+ read += guc_capture_store_remove_dw(store, bytesleft, &hdr->num_mmios);
+ if (read != sizeof(*hdr))
+ return -1;
+
+ return 0;
+}
+
+static int
+guc_capture_store_get_register(const struct intel_guc *guc,
+ struct guc_capture_out_store *store, u32 *bytesleft,
+ struct guc_mmio_reg *reg)
+{
+ int read = 0;
+ int fullsize = sizeof(struct guc_mmio_reg);
+
+ if (fullsize > *bytesleft)
+ return -1;
+
+ if (CIRC_CNT_TO_END(store->head, store->tail, store->size) >= fullsize) {
+ memcpy(reg, (store->addr + store->tail), fullsize);
+ store->tail = (store->tail + fullsize) & (store->size - 1);
+ *bytesleft -= fullsize;
+ return 0;
+ }
+
+ read += guc_capture_store_remove_dw(store, bytesleft, ®->offset);
+ read += guc_capture_store_remove_dw(store, bytesleft, ®->value);
+ read += guc_capture_store_remove_dw(store, bytesleft, ®->flags);
+ read += guc_capture_store_remove_dw(store, bytesleft, ®->mask);
+ if (read != sizeof(*reg))
+ return -1;
+
+ return 0;
+}
+
+static void guc_capture_store_drop_data(struct guc_capture_out_store *store,
+ unsigned long sampled_head)
+{
+ if (sampled_head == 0)
+ store->tail = store->size - 1;
+ else
+ store->tail = sampled_head - 1;
+}
+
+#ifdef CONFIG_DRM_I915_DEBUG_GUC
+#define guc_capt_err_print(a, b, ...) \
+ do { \
+ drm_warn(a, __VA_ARGS__); \
+ if (b) \
+ i915_error_printf(b, __VA_ARGS__); \
+ } while (0)
+#else
+#define guc_capt_err_print(a, b, ...) \
+ do { \
+ if (b) \
+ i915_error_printf(b, __VA_ARGS__); \
+ } while (0)
+#endif
+
+static struct intel_engine_cs *
+guc_capture_lookup_engine(struct intel_guc *guc, u8 guc_class, u8 instance)
+{
+ struct intel_gt *gt = guc_to_gt(guc);
+ u8 engine_class = guc_class_to_engine_class(guc_class);
+
+ /* Class index is checked in class converter */
+ GEM_BUG_ON(instance > MAX_ENGINE_INSTANCE);
+
+ return gt->engine_class[engine_class][instance];
+}
+
+#define PRINT guc_capt_err_print
+#define REGSTR guc_capture_register_to_string
+
+#define GCAP_PRINT_INTEL_ENG_INFO(i915, ebuf, eng) \
+ do { \
+ PRINT(&i915->drm, (ebuf), " i915-Eng-Name: %s command stream\n", (eng)->name); \
+ PRINT(&i915->drm, (ebuf), " i915-Eng-Inst-Class: 0x%02x\n", (eng)->class); \
+ PRINT(&i915->drm, (ebuf), " i915-Eng-Inst-Id: 0x%02x\n", (eng)->instance); \
+ PRINT(&i915->drm, (ebuf), " i915-Eng-LogicalMask: 0x%08x\n", \
+ (eng)->logical_mask); \
+ } while (0)
+
+#define GCAP_PRINT_GUC_INST_INFO(i915, ebuf, hdr) \
+ do { \
+ PRINT(&i915->drm, (ebuf), " GuC-Engine-Inst-Id: 0x%08x\n", \
+ (uint32_t)FIELD_GET(CAP_HDR_ENGINE_INSTANCE, (hdr).info)); \
+ PRINT(&i915->drm, (ebuf), " GuC-Context-Id: 0x%08x\n", (hdr).guc_id); \
+ PRINT(&i915->drm, (ebuf), " LRCA: 0x%08x\n", (hdr).lrca); \
+ } while (0)
+
+#define GCAP_PRINT_INTEL_CTX_INFO(i915, ebuf, ce) \
+ do { \
+ PRINT(&i915->drm, (ebuf), " i915-Ctx-Flags: 0x%016lx\n", (ce)->flags); \
+ PRINT(&i915->drm, (ebuf), " i915-Ctx-GuC-Id: 0x%016x\n", (ce)->guc_id.id); \
+ } while (0)
+
+#define GCAP_PRINT_BATCH(i915, ebuf, ee, batch) \
+ do { \
+ batch = intel_gpu_error_find_batch(ee); \
+ if (batch) { \
+ u64 start = batch->gtt_offset; \
+ u64 end = start + batch->gtt_size; \
+ PRINT(&i915->drm, (ebuf), " batch: [0x%08x_%08x, 0x%08x_%08x]\n", \
+ upper_32_bits(start), lower_32_bits(start), \
+ upper_32_bits(end), lower_32_bits(end)); \
+ } \
+ } while (0)
+
+#define GCAP_PRINT_CONTEXT(i915, ebuf, ctx) \
+ do { \
+ const u32 period = to_gt(ebuf->i915)->clock_period_ns; \
+ PRINT(&i915->drm, (ebuf), " Active context: %s[%d] prio %d, guilty %d " \
+ "active %d, runtime total %lluns, avg %lluns\n", \
+ ctx->comm, ctx->pid, ctx->sched_attr.priority, \
+ ctx->guilty, ctx->active, \
+ ctx->total_runtime * period, \
+ mul_u32_u32(ctx->avg_runtime, period)); \
+ } while (0)
+
+int intel_guc_capture_out_print_next_group(struct drm_i915_error_state_buf *ebuf,
+ struct intel_gt_coredump *gt)
+{
+ /* constant qualifier for data-pointers we shouldn't change mid of error dump printing */
+ struct intel_guc_state_capture *cap = gt->uc->capture;
+ struct intel_guc *guc = container_of(cap, struct intel_guc, capture);
+ struct drm_i915_private *i915 = (container_of(guc, struct intel_gt,
+ uc.guc))->i915;
+ struct guc_capture_out_store *store;
+ struct guc_capture_out_store tmpstore;
+ struct guc_state_capture_group_header_t ghdr;
+ struct guc_state_capture_header_t hdr;
+ struct guc_mmio_reg reg;
+ const char *grptypestr[GUC_STATE_CAPTURE_GROUP_TYPE_MAX] = {"full-capture",
+ "partial-capture"};
+ const char *datatypestr[GUC_CAPTURE_LIST_TYPE_MAX] = {"Global", "Engine-Class",
+ "Engine-Instance"};
+ enum guc_capture_group_types grptype;
+ enum guc_capture_type datatype;
+ int numgrps, numregs, ret = 0;
+ const char *str;
+ char noname[16];
+ u32 numbytes, engineclass, guc_enginst, guc_lrca, guc_gucid, is_ext;
+ struct intel_engine_cs *eng;
+ const struct intel_engine_coredump *ee;
+ const struct i915_gem_context_coredump *ctx;
+ struct i915_vma_coredump *batch;
+
+ if (!cap->priv)
+ return -ENODEV;
+
+ store = &cap->priv->out_store;
+
+ mutex_lock(&store->lock);
+ smp_mb(); /* sync to get the latest head for the moment */
+ /* NOTE1: make a copy of store so we dont have to deal with a changing lower bound of
+ * occupied-space in this circular buffer.
+ * NOTE2: Higher up the stack from here, we keep calling this function in a loop to
+ * reading more capture groups as they appear (as the lower bound of occupied-space
+ * changes) until this circ-buf is empty.
+ */
+ memcpy(&tmpstore, store, sizeof(tmpstore));
+
+ PRINT(&i915->drm, ebuf, "global --- GuC Error Capture\n");
+
+ numbytes = CIRC_CNT(tmpstore.head, tmpstore.tail, tmpstore.size);
+ if (!numbytes) {
+ PRINT(&i915->drm, ebuf, "GuC capture stream empty!\n");
+ ret = -ENODATA;
+ goto unlock;
+ }
+ /* everything in GuC output structures are dword aligned */
+ if (numbytes & 0x3) {
+ PRINT(&i915->drm, ebuf, "GuC capture stream unaligned!\n");
+ ret = -EIO;
+ goto unlock;
+ }
+
+ if (guc_capture_store_get_group_hdr(guc, &tmpstore, &numbytes, &ghdr)) {
+ PRINT(&i915->drm, ebuf, "GuC capture error getting next group-header!\n");
+ ret = -EIO;
+ goto unlock;
+ }
+
+ PRINT(&i915->drm, ebuf, "NumCaptures: 0x%08x\n", (uint32_t)
+ FIELD_GET(CAP_GRP_HDR_NUM_CAPTURES, ghdr.info));
+ grptype = FIELD_GET(CAP_GRP_HDR_CAPTURE_TYPE, ghdr.info);
+ PRINT(&i915->drm, ebuf, "Coverage: 0x%08x = %s\n", grptype,
+ grptypestr[grptype % GUC_STATE_CAPTURE_GROUP_TYPE_MAX]);
+
+ numgrps = FIELD_GET(CAP_GRP_HDR_NUM_CAPTURES, ghdr.info);
+ while (numgrps--) {
+ if (guc_capture_store_get_data_hdr(guc, &tmpstore, &numbytes, &hdr)) {
+ PRINT(&i915->drm, ebuf, "GuC capture error on next capture-header!\n");
+ ret = -EIO;
+ goto unlock;
+ }
+ datatype = FIELD_GET(CAP_HDR_CAPTURE_TYPE, hdr.info);
+ PRINT(&i915->drm, ebuf, " RegListType: %s\n",
+ datatypestr[datatype % GUC_CAPTURE_LIST_TYPE_MAX]);
+
+ eng = NULL;
+ guc_enginst = MAX_ENGINE_INSTANCE + 1;
+ guc_gucid = guc_lrca = 0;
+ engineclass = FIELD_GET(CAP_HDR_ENGINE_CLASS, hdr.info);
+ if (datatype != GUC_CAPTURE_LIST_TYPE_GLOBAL) {
+ PRINT(&i915->drm, ebuf, " GuC-Engine-Class: %d\n",
+ engineclass);
+ if (datatype == GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS &&
+ engineclass <= GUC_LAST_ENGINE_CLASS)
+ PRINT(&i915->drm, ebuf, " i915-Eng-Class: %d\n",
+ guc_class_to_engine_class(engineclass));
+
+ if (datatype == GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE) {
+ guc_enginst = FIELD_GET(CAP_HDR_ENGINE_INSTANCE, hdr.info);
+ eng = guc_capture_lookup_engine(guc, engineclass, guc_enginst);
+ if (eng)
+ GCAP_PRINT_INTEL_ENG_INFO(i915, ebuf, eng);
+ else
+ PRINT(&i915->drm, ebuf,
+ " i915-Eng-Lookup Fail!\n");
+ guc_lrca = hdr.lrca;
+ guc_gucid = hdr.guc_id;
+ GCAP_PRINT_GUC_INST_INFO(i915, ebuf, hdr);
+ }
+ }
+ numregs = FIELD_GET(CAP_HDR_NUM_MMIOS, hdr.num_mmios);
+ PRINT(&i915->drm, ebuf, " NumRegs: %d\n", numregs);
+
+ while (numregs--) {
+ if (guc_capture_store_get_register(guc, &tmpstore, &numbytes, ®)) {
+ PRINT(&i915->drm, ebuf, "Error getting next register!\n");
+ ret = -EIO;
+ goto unlock;
+ }
+ str = REGSTR(guc, GUC_CAPTURE_LIST_INDEX_PF, datatype,
+ engineclass, 0, reg.offset, &is_ext);
+ if (!str) {
+ snprintf(noname, sizeof(noname), "REG-0x%08x", reg.offset);
+ PRINT(&i915->drm, ebuf, " %s", noname);
+ } else {
+ PRINT(&i915->drm, ebuf, " %s", str);
+ }
+ if (is_ext)
+ PRINT(&i915->drm, ebuf, "[%ld][%ld]",
+ FIELD_GET(GUC_REGSET_STEERING_GROUP, reg.flags),
+ FIELD_GET(GUC_REGSET_STEERING_INSTANCE, reg.flags));
+ PRINT(&i915->drm, ebuf, ": 0x%08x\n", reg.value);
+ }
+ for (ee = gt->engine; ee; ee = ee->next) {
+ const struct i915_vma_coredump *vma;
+
+ if (ee->engine == eng && ee->gucinfo.eng_id == guc_enginst &&
+ ee->gucinfo.guc_id == guc_gucid &&
+ (ee->gucinfo.lrca & CTX_GTT_ADDRESS_MASK) ==
+ (guc_lrca & CTX_GTT_ADDRESS_MASK)) {
+ PRINT(&i915->drm, ebuf, "i915-Ctx-VMA-Matched:\n");
+ GCAP_PRINT_BATCH(i915, ebuf, ee, batch);
+ PRINT(&i915->drm, ebuf, " engine reset count: %u\n",
+ ee->reset_count);
+ ctx = &ee->context;
+ GCAP_PRINT_CONTEXT(i915, ebuf, ctx);
+
+ for (vma = ee->vma; vma; vma = vma->next)
+ intel_gpu_error_print_vma(ebuf, ee->engine, vma);
+ }
+ }
+ }
+
+ store->tail = tmpstore.tail;
+unlock:
+ /* if we have a stream error, just drop everything */
+ if (ret == -EIO) {
+ drm_warn(&i915->drm, "Skip GuC capture header print due to stream error\n");
+ guc_capture_store_drop_data(store, tmpstore.head);
+ }
+
+ mutex_unlock(&store->lock);
+
+ return ret;
+}
+
+#undef REGSTR
+#undef PRINT
+
+#endif //CONFIG_DRM_I915_DEBUG_GUC
+
static void guc_capture_store_insert(struct intel_guc *guc, struct guc_capture_out_store *store,
unsigned char *new_data, size_t bytes)
{
@@ -812,6 +1224,31 @@ void intel_guc_capture_destroy(struct intel_guc *guc)
guc->capture.priv = NULL;
}
+void intel_guc_capture_copy_info(struct intel_engine_coredump *ee, struct intel_context *ce)
+{
+ if (!ee || !ce)
+ return;
+
+ /*
+ * Store GuC relatable information pertaining to the faulting
+ * context into the intel_engine_coredump structure that we can
+ * reference later during the debugfs triggered printout function
+ * to ensure we print the vma dumps matching that match
+ * the GuC register dumps
+ */
+ ee->gucinfo.lrca = ce->lrc.lrca;
+ ee->gucinfo.guc_id = ce->guc_id.id;
+ ee->gucinfo.eng_id = ee->engine->guc_id;
+}
+
+struct intel_guc_state_capture *
+intel_guc_capture_store_ptr(struct intel_guc *guc)
+{
+ if (!guc->capture.priv)
+ return NULL;
+ return &guc->capture;
+}
+
int intel_guc_capture_init(struct intel_guc *guc)
{
int ret;
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.h
index c240a4cc046b..37e29f76cda8 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.h
@@ -8,15 +8,23 @@
#include <linux/types.h>
-struct intel_guc;
+struct drm_i915_error_state_buf;
struct guc_ads;
struct guc_gt_system_info;
+struct intel_gt_coredump;
+struct intel_guc;
+struct intel_engine_coredump;
+struct intel_context;
int intel_guc_capture_prep_lists(struct intel_guc *guc, struct guc_ads *blob, u32 blob_ggtt,
u32 capture_offset, struct guc_gt_system_info *sysinfo);
+int intel_guc_capture_out_print_next_group(struct drm_i915_error_state_buf *m,
+ struct intel_gt_coredump *gt);
+void intel_guc_capture_copy_info(struct intel_engine_coredump *ee, struct intel_context *ce);
void intel_guc_capture_store_snapshot(struct intel_guc *guc);
int intel_guc_capture_output_min_size_est(struct intel_guc *guc);
void intel_guc_capture_destroy(struct intel_guc *guc);
+struct intel_guc_state_capture *intel_guc_capture_store_ptr(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/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 5ae812d60abe..84c47f87eb0d 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -526,8 +526,8 @@ __find_vma(struct i915_vma_coredump *vma, const char *name)
return NULL;
}
-static struct i915_vma_coredump *
-find_batch(const struct intel_engine_coredump *ee)
+struct i915_vma_coredump *
+intel_gpu_error_find_batch(const struct intel_engine_coredump *ee)
{
return __find_vma(ee->vma, "batch");
}
@@ -555,7 +555,7 @@ static void error_print_engine(struct drm_i915_error_state_buf *m,
error_print_instdone(m, ee);
- batch = find_batch(ee);
+ batch = intel_gpu_error_find_batch(ee);
if (batch) {
u64 start = batch->gtt_offset;
u64 end = start + batch->gtt_size;
@@ -601,6 +601,16 @@ static void error_print_engine(struct drm_i915_error_state_buf *m,
error_print_context(m, " Active context: ", &ee->context);
}
+static void error_print_guc_captures(struct drm_i915_error_state_buf *m,
+ struct intel_gt_coredump *gt)
+{
+ int ret;
+
+ do {
+ ret = intel_guc_capture_out_print_next_group(m, gt);
+ } while (!ret);
+}
+
void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...)
{
va_list args;
@@ -610,9 +620,9 @@ void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...)
va_end(args);
}
-static void print_error_vma(struct drm_i915_error_state_buf *m,
- const struct intel_engine_cs *engine,
- const struct i915_vma_coredump *vma)
+void intel_gpu_error_print_vma(struct drm_i915_error_state_buf *m,
+ const struct intel_engine_cs *engine,
+ const struct i915_vma_coredump *vma)
{
char out[ASCII85_BUFSZ];
struct page *page;
@@ -681,7 +691,7 @@ static void err_print_uc(struct drm_i915_error_state_buf *m,
intel_uc_fw_dump(&error_uc->guc_fw, &p);
intel_uc_fw_dump(&error_uc->huc_fw, &p);
- print_error_vma(m, NULL, error_uc->guc_log);
+ intel_gpu_error_print_vma(m, NULL, error_uc->guc_log);
}
static void err_free_sgl(struct scatterlist *sgl)
@@ -766,12 +776,17 @@ static void err_print_gt(struct drm_i915_error_state_buf *m,
err_printf(m, " GAM_DONE: 0x%08x\n", gt->gam_done);
}
- for (ee = gt->engine; ee; ee = ee->next) {
- const struct i915_vma_coredump *vma;
+ if (gt->uc && gt->uc->capture) {
+ /* error capture was via GuC */
+ error_print_guc_captures(m, gt);
+ } else {
+ for (ee = gt->engine; ee; ee = ee->next) {
+ const struct i915_vma_coredump *vma;
- error_print_engine(m, ee);
- for (vma = ee->vma; vma; vma = vma->next)
- print_error_vma(m, ee->engine, vma);
+ error_print_engine(m, ee);
+ for (vma = ee->vma; vma; vma = vma->next)
+ intel_gpu_error_print_vma(m, ee->engine, vma);
+ }
}
if (gt->uc)
@@ -1144,7 +1159,7 @@ static void gt_record_fences(struct intel_gt_coredump *gt)
gt->nfence = i;
}
-static void engine_record_registers(struct intel_engine_coredump *ee)
+static void engine_record_registers_execlist(struct intel_engine_coredump *ee)
{
const struct intel_engine_cs *engine = ee->engine;
struct drm_i915_private *i915 = engine->i915;
@@ -1449,8 +1464,10 @@ intel_engine_coredump_alloc(struct intel_engine_cs *engine, gfp_t gfp)
ee->engine = engine;
- engine_record_registers(ee);
- engine_record_execlists(ee);
+ if (!intel_uc_uses_guc_submission(&engine->gt->uc)) {
+ engine_record_registers_execlist(ee);
+ engine_record_execlists(ee);
+ }
return ee;
}
@@ -1521,11 +1538,14 @@ capture_engine(struct intel_engine_cs *engine,
struct intel_context *ce;
struct i915_request *rq = NULL;
unsigned long flags;
+ bool guc_submission = false;
ee = intel_engine_coredump_alloc(engine, GFP_KERNEL);
if (!ee)
return NULL;
+ guc_submission = intel_uc_uses_guc_submission(&engine->gt->uc);
+
ce = intel_engine_get_hung_context(engine);
if (ce) {
intel_engine_clear_hung_context(engine);
@@ -1537,7 +1557,7 @@ capture_engine(struct intel_engine_cs *engine,
* Getting here with GuC enabled means it is a forced error capture
* with no actual hang. So, no need to attempt the execlist search.
*/
- if (!intel_uc_uses_guc_submission(&engine->gt->uc)) {
+ if (!guc_submission) {
spin_lock_irqsave(&engine->sched_engine->lock, flags);
rq = intel_engine_execlist_find_hung_request(engine);
spin_unlock_irqrestore(&engine->sched_engine->lock,
@@ -1555,6 +1575,8 @@ capture_engine(struct intel_engine_cs *engine,
i915_request_put(rq);
goto no_request_capture;
}
+ if (guc_submission)
+ intel_guc_capture_copy_info(ee, ce);
intel_engine_coredump_add_vma(ee, capture, compress);
i915_request_put(rq);
@@ -1623,8 +1645,8 @@ gt_record_uc(struct intel_gt_coredump *gt,
return error_uc;
}
-/* Capture all registers which don't fit into another category. */
-static void gt_record_regs(struct intel_gt_coredump *gt)
+/* Capture all global registers which don't fit into another category. */
+static void gt_record_registers_execlist(struct intel_gt_coredump *gt)
{
struct intel_uncore *uncore = gt->_gt->uncore;
struct drm_i915_private *i915 = uncore->i915;
@@ -1868,7 +1890,9 @@ intel_gt_coredump_alloc(struct intel_gt *gt, gfp_t gfp)
gc->_gt = gt;
gc->awake = intel_gt_pm_is_awake(gt);
- gt_record_regs(gc);
+ if (!intel_uc_uses_guc_submission(>->uc))
+ gt_record_registers_execlist(gc);
+
gt_record_fences(gc);
return gc;
@@ -1933,6 +1957,9 @@ __i915_gpu_coredump(struct intel_gt *gt, intel_engine_mask_t engine_mask)
if (INTEL_INFO(i915)->has_gt_uc)
error->gt->uc = gt_record_uc(error->gt, compress);
+ if (intel_uc_uses_guc_submission(>->uc))
+ error->gt->uc->capture = intel_guc_capture_store_ptr(>->uc.guc);
+
i915_vma_capture_finish(error->gt, compress);
error->simulated |= error->gt->simulated;
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.h b/drivers/gpu/drm/i915/i915_gpu_error.h
index 5aedf5129814..576677c2888e 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.h
+++ b/drivers/gpu/drm/i915/i915_gpu_error.h
@@ -17,6 +17,7 @@
#include "gt/intel_engine.h"
#include "gt/intel_gt_types.h"
#include "gt/uc/intel_uc_fw.h"
+#include "gt/uc/intel_guc_capture.h"
#include "intel_device_info.h"
@@ -84,6 +85,13 @@ struct intel_engine_coredump {
u32 rc_psmi; /* sleep state */
struct intel_instdone instdone;
+ /* GuC correlated info */
+ struct {
+ u32 lrca;
+ u16 guc_id;
+ u32 eng_id;
+ } gucinfo;
+
struct i915_gem_context_coredump {
char comm[TASK_COMM_LEN];
@@ -149,6 +157,7 @@ struct intel_gt_coredump {
struct intel_uc_fw guc_fw;
struct intel_uc_fw huc_fw;
struct i915_vma_coredump *guc_log;
+ struct intel_guc_state_capture *capture;
} *uc;
struct intel_gt_coredump *next;
@@ -214,6 +223,11 @@ struct drm_i915_error_state_buf {
__printf(2, 3)
void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
+void intel_gpu_error_print_vma(struct drm_i915_error_state_buf *m,
+ const struct intel_engine_cs *engine,
+ const struct i915_vma_coredump *vma);
+struct i915_vma_coredump *
+intel_gpu_error_find_batch(const struct intel_engine_coredump *ee);
struct i915_gpu_coredump *i915_gpu_coredump(struct intel_gt *gt,
intel_engine_mask_t engine_mask);
--
2.25.1
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