[PATCH v6 3/6] drm/xe/guc: Split engine state print between xe_hw_engine vs xe_guc_capture
Rodrigo Vivi
rodrigo.vivi at intel.com
Thu Jan 30 22:42:50 UTC 2025
On Tue, Jan 28, 2025 at 10:36:49AM -0800, Alan Previn wrote:
> Relocate the xe_engine_snapshot_print function from xe_guc_capture.c
> into xe_hw_engine.c but split out the GuC-Err-Capture register printing
> portion out into a separate helper inside xe_guc_capture.c so that
> we can have a clear separation between printing the general engine info
> vs GuC-Err-Capture node's register list.
>
> Signed-off-by: Alan Previn <alan.previn.teres.alexis at intel.com>
> ---
> drivers/gpu/drm/xe/xe_guc_capture.c | 72 +++++++++++++----------------
> drivers/gpu/drm/xe/xe_guc_capture.h | 4 +-
> drivers/gpu/drm/xe/xe_hw_engine.c | 28 +++++++++++
> drivers/gpu/drm/xe/xe_hw_engine.h | 1 +
> 4 files changed, 62 insertions(+), 43 deletions(-)
>
> diff --git a/drivers/gpu/drm/xe/xe_guc_capture.c b/drivers/gpu/drm/xe/xe_guc_capture.c
> index f118e8dd0ecb..a7278a01f586 100644
> --- a/drivers/gpu/drm/xe/xe_guc_capture.c
> +++ b/drivers/gpu/drm/xe/xe_guc_capture.c
> @@ -1655,22 +1655,16 @@ guc_capture_find_reg(struct gcap_reg_list_info *reginfo, u32 addr, u32 flags)
> }
>
> static void
> -snapshot_print_by_list_order(struct xe_hw_engine_snapshot *snapshot, struct drm_printer *p,
> - u32 type, const struct __guc_mmio_reg_descr_group *list)
> +print_noderegs_by_list_order(struct xe_guc *guc, struct gcap_reg_list_info *reginfo,
> + const struct __guc_mmio_reg_descr_group *list, struct drm_printer *p)
> {
> - struct xe_gt *gt = snapshot->hwe->gt;
> - struct xe_guc *guc = >->uc.guc;
> - struct gcap_reg_list_info *reginfo = NULL;
> - u32 i, last_value = 0;
> + u32 last_value, i;
> bool is_ext, low32_ready = false;
>
> if (!list || !list->list || list->num_regs == 0)
> return;
>
> - XE_WARN_ON(!snapshot->matched_node);
> -
> is_ext = list == guc->capture->extlists;
> - reginfo = &snapshot->matched_node->reginfo[type];
>
> /*
> * loop through descriptor first and find the register in the node
> @@ -1740,8 +1734,8 @@ snapshot_print_by_list_order(struct xe_hw_engine_snapshot *snapshot, struct drm_
>
> group = FIELD_GET(GUC_REGSET_STEERING_GROUP, reg_desc->flags);
> instance = FIELD_GET(GUC_REGSET_STEERING_INSTANCE, reg_desc->flags);
> - dss = xe_gt_mcr_steering_info_to_dss_id(gt, group, instance);
> -
> + dss = xe_gt_mcr_steering_info_to_dss_id(guc_to_gt(guc), group,
> + instance);
> drm_printf(p, "\t%s[%u]: 0x%08x\n", reg_desc->regname, dss, value);
> } else {
> drm_printf(p, "\t%s: 0x%08x\n", reg_desc->regname, value);
> @@ -1760,13 +1754,18 @@ snapshot_print_by_list_order(struct xe_hw_engine_snapshot *snapshot, struct drm_
> }
>
> /**
> - * xe_engine_snapshot_print - Print out a given Xe HW Engine snapshot.
> - * @snapshot: Xe HW Engine snapshot object.
> + * xe_guc_capture_snapshot_print - Print out a the contents of a provided Guc-Err-Capture node
> + * @guc : Target GuC for operation.
> + * @node: GuC Error Capture register dump node.
> * @p: drm_printer where it will be printed out.
> *
> - * This function prints out a given Xe HW Engine snapshot object.
> + * This function prints out a register dump of a GuC-Err-Capture node that was retrieved
> + * earlier either by GuC-FW reporting or by manual capture depending on how the
> + * caller (typically xe_hw_engine_snapshot) was invoked and used.
> */
> -void xe_engine_snapshot_print(struct xe_hw_engine_snapshot *snapshot, struct drm_printer *p)
> +
> +void xe_guc_capture_snapshot_print(struct xe_guc *guc, struct xe_guc_capture_snapshot *node,
> + struct drm_printer *p)
> {
> const char *grptype[GUC_STATE_CAPTURE_GROUP_TYPE_MAX] = {
> "full-capture",
> @@ -1774,45 +1773,36 @@ void xe_engine_snapshot_print(struct xe_hw_engine_snapshot *snapshot, struct drm
> };
> int type;
> const struct __guc_mmio_reg_descr_group *list;
> - enum guc_capture_list_class_type capture_class;
> struct xe_gt *gt;
>
> - if (!snapshot)
> + if (!guc)
> return;
> -
> - gt = snapshot->hwe->gt;
> -
> - if (!snapshot->matched_node)
> + gt = guc_to_gt(guc);
> + if (!node) {
> + xe_gt_warn(gt, "GuC Capture printing without node!\n");
> return;
> + }
> + if (!p) {
> + xe_gt_warn(gt, "GuC Capture printing without printer!\n");
> + return;
> + }
>
> - xe_gt_assert(gt, snapshot->hwe);
> -
> - capture_class = xe_engine_class_to_guc_capture_class(snapshot->hwe->class);
> -
> - drm_printf(p, "%s (physical), logical instance=%d\n",
> - snapshot->name ? snapshot->name : "",
> - snapshot->logical_instance);
> drm_printf(p, "\tCapture_source: %s\n",
> - snapshot->matched_node->source == XE_ENGINE_CAPTURE_SOURCE_GUC ?
> + node->source == XE_ENGINE_CAPTURE_SOURCE_GUC ?
> "GuC" : "Manual");
This looks like it is changing the order of the prints. So, please ensure that this
is not breaking the decode user space tools.
> - drm_printf(p, "\tCoverage: %s\n", grptype[snapshot->matched_node->is_partial]);
> - drm_printf(p, "\tForcewake: domain 0x%x, ref %d\n",
> - snapshot->forcewake.domain, snapshot->forcewake.ref);
> - drm_printf(p, "\tReserved: %s\n",
> - str_yes_no(snapshot->kernel_reserved));
> + drm_printf(p, "\tCoverage: %s\n", grptype[node->is_partial]);
>
> for (type = GUC_STATE_CAPTURE_TYPE_GLOBAL; type < GUC_STATE_CAPTURE_TYPE_MAX; type++) {
> list = xe_guc_capture_get_reg_desc_list(gt, GUC_CAPTURE_LIST_INDEX_PF, type,
> - capture_class, false);
> - snapshot_print_by_list_order(snapshot, p, type, list);
> + node->eng_class, false);
> + print_noderegs_by_list_order(guc, &node->reginfo[type], list, p);
> }
>
> - if (capture_class == GUC_CAPTURE_LIST_CLASS_RENDER_COMPUTE) {
> + if (node->eng_class == GUC_CAPTURE_LIST_CLASS_RENDER_COMPUTE) {
> + type = GUC_STATE_CAPTURE_TYPE_ENGINE_CLASS;
> list = xe_guc_capture_get_reg_desc_list(gt, GUC_CAPTURE_LIST_INDEX_PF,
> - GUC_STATE_CAPTURE_TYPE_ENGINE_CLASS,
> - capture_class, true);
> - snapshot_print_by_list_order(snapshot, p, GUC_STATE_CAPTURE_TYPE_ENGINE_CLASS,
> - list);
> + type, node->eng_class, true);
> + print_noderegs_by_list_order(guc, &node->reginfo[type], list, p);
> }
>
> drm_puts(p, "\n");
> diff --git a/drivers/gpu/drm/xe/xe_guc_capture.h b/drivers/gpu/drm/xe/xe_guc_capture.h
> index 8ac893c92f19..e67589ab4342 100644
> --- a/drivers/gpu/drm/xe/xe_guc_capture.h
> +++ b/drivers/gpu/drm/xe/xe_guc_capture.h
> @@ -15,7 +15,6 @@
> struct xe_exec_queue;
> struct xe_guc;
> struct xe_hw_engine;
> -struct xe_hw_engine_snapshot;
>
> static inline enum guc_capture_list_class_type xe_guc_class_to_capture_class(u16 class)
> {
> @@ -55,7 +54,8 @@ struct xe_guc_capture_snapshot *
> xe_guc_capture_get_matching_and_lock(struct xe_exec_queue *q,
> enum xe_guc_capture_snapshot_source srctype);
> void xe_guc_capture_snapshot_store_manual_job(struct xe_guc *guc, struct xe_exec_queue *q);
> -void xe_engine_snapshot_print(struct xe_hw_engine_snapshot *snapshot, struct drm_printer *p);
> +void xe_guc_capture_snapshot_print(struct xe_guc *guc, struct xe_guc_capture_snapshot *node,
> + struct drm_printer *p);
> void xe_engine_snapshot_capture_for_queue(struct xe_exec_queue *q);
> void xe_guc_capture_steered_list_init(struct xe_guc *guc);
> void xe_guc_capture_put_matched_nodes(struct xe_guc *guc, struct xe_guc_capture_snapshot *n);
> diff --git a/drivers/gpu/drm/xe/xe_hw_engine.c b/drivers/gpu/drm/xe/xe_hw_engine.c
> index 26006d72904f..d615ebab6e42 100644
> --- a/drivers/gpu/drm/xe/xe_hw_engine.c
> +++ b/drivers/gpu/drm/xe/xe_hw_engine.c
> @@ -905,6 +905,34 @@ void xe_hw_engine_snapshot_free(struct xe_hw_engine_snapshot *snapshot)
> kfree(snapshot);
> }
>
> +/**
> + * xe_engine_snapshot_print - Print out a given Xe HW Engine snapshot.
> + * @snapshot: Xe HW Engine snapshot object.
> + * @p: drm_printer where it will be printed out.
> + *
> + * This function prints out a given Xe HW Engine snapshot object.
> + */
> +void xe_engine_snapshot_print(struct xe_hw_engine_snapshot *snapshot, struct drm_printer *p)
> +{
> + struct xe_gt *gt;
> +
> + if (!snapshot)
> + return;
> +
> + gt = snapshot->hwe->gt;
> +
> + drm_printf(p, "%s (physical), logical instance=%d\n",
> + snapshot->name ? snapshot->name : "",
> + snapshot->logical_instance);
> + drm_printf(p, "\tForcewake: domain 0x%x, ref %d\n",
> + snapshot->forcewake.domain, snapshot->forcewake.ref);
> + drm_printf(p, "\tReserved: %s\n",
> + str_yes_no(snapshot->kernel_reserved));
> + drm_puts(p, "\n");
> +
> + xe_guc_capture_snapshot_print(>->uc.guc, snapshot->matched_node, p);
> +}
> +
> /**
> * xe_hw_engine_print - Xe HW Engine Print.
> * @hwe: Hardware Engine.
> diff --git a/drivers/gpu/drm/xe/xe_hw_engine.h b/drivers/gpu/drm/xe/xe_hw_engine.h
> index 6b5f9fa2a594..fac2e9a421d9 100644
> --- a/drivers/gpu/drm/xe/xe_hw_engine.h
> +++ b/drivers/gpu/drm/xe/xe_hw_engine.h
> @@ -58,6 +58,7 @@ u32 xe_hw_engine_mask_per_class(struct xe_gt *gt,
> struct xe_hw_engine_snapshot *
> xe_hw_engine_snapshot_capture(struct xe_hw_engine *hwe, struct xe_exec_queue *q);
> void xe_hw_engine_snapshot_free(struct xe_hw_engine_snapshot *snapshot);
> +void xe_engine_snapshot_print(struct xe_hw_engine_snapshot *snapshot, struct drm_printer *p);
please respect the component namespace here
> void xe_hw_engine_print(struct xe_hw_engine *hwe, struct drm_printer *p);
> void xe_hw_engine_setup_default_lrc_state(struct xe_hw_engine *hwe);
>
> --
> 2.34.1
>
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