drm/xe/pf: Show VFs LMEM provisioning summary over debugfs

While we can already view individual VF LMEM provisioning using
lmem_quota debugfs attribute, we want to have unified way to show
summary across all VFs, like we do for GGTT or GuC doorbells/IDs.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Marcin Bernatowicz <marcin.bernatowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241021201506.1771-1-michal.wajdeczko@intel.com

diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c b/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c
index a863e50b756ed39fa9294c4da3cd0160387369f3..062a0c2fd2cdf9d37a13e8bf371e393a4b8dd96e 100644 (file)
--- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c
+++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c
@@ -2376,6 +2376,41 @@ int xe_gt_sriov_pf_config_print_dbs(struct xe_gt *gt, struct drm_printer *p)
        return 0;
 }
 
+/**
+ * xe_gt_sriov_pf_config_print_lmem - Print LMEM configurations.
+ * @gt: the &xe_gt
+ * @p: the &drm_printer
+ *
+ * Print LMEM allocations across all VFs.
+ * VFs without LMEM allocation are skipped.
+ *
+ * This function can only be called on PF.
+ * Return: 0 on success or a negative error code on failure.
+ */
+int xe_gt_sriov_pf_config_print_lmem(struct xe_gt *gt, struct drm_printer *p)
+{
+       unsigned int n, total_vfs = xe_sriov_pf_get_totalvfs(gt_to_xe(gt));
+       const struct xe_gt_sriov_config *config;
+       char buf[10];
+
+       xe_gt_assert(gt, IS_SRIOV_PF(gt_to_xe(gt)));
+       mutex_lock(xe_gt_sriov_pf_master_mutex(gt));
+
+       for (n = 1; n <= total_vfs; n++) {
+               config = &gt->sriov.pf.vfs[n].config;
+               if (!config->lmem_obj)
+                       continue;
+
+               string_get_size(config->lmem_obj->size, 1, STRING_UNITS_2,
+                               buf, sizeof(buf));
+               drm_printf(p, "VF%u:\t%zu\t(%s)\n",
+                          n, config->lmem_obj->size, buf);
+       }
+
+       mutex_unlock(xe_gt_sriov_pf_master_mutex(gt));
+       return 0;
+}
+
 /**
  * xe_gt_sriov_pf_config_print_available_ggtt - Print available GGTT ranges.
  * @gt: the &xe_gt

diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.h b/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.h
index b74ec38baa182e86a7e0f534cdece68a3ce4fa24..0c55aa40a1a7b712e00cefedba29e52ab64b0667 100644 (file)
--- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.h
+++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.h
@@ -65,6 +65,7 @@ void xe_gt_sriov_pf_config_restart(struct xe_gt *gt);
 int xe_gt_sriov_pf_config_print_ggtt(struct xe_gt *gt, struct drm_printer *p);
 int xe_gt_sriov_pf_config_print_ctxs(struct xe_gt *gt, struct drm_printer *p);
 int xe_gt_sriov_pf_config_print_dbs(struct xe_gt *gt, struct drm_printer *p);
+int xe_gt_sriov_pf_config_print_lmem(struct xe_gt *gt, struct drm_printer *p);
 
 int xe_gt_sriov_pf_config_print_available_ggtt(struct xe_gt *gt, struct drm_printer *p);
 

diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_debugfs.c b/drivers/gpu/drm/xe/xe_gt_sriov_pf_debugfs.c
index 91fc42e386d86a7b2cf3abddf4b7ba561cb14cd4..05df4ab3514badac70a4e957c4f4b006f3303075 100644 (file)
--- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_debugfs.c
+++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_debugfs.c
@@ -81,6 +81,11 @@ static const struct drm_info_list pf_info[] = {
                .show = xe_gt_debugfs_simple_show,
                .data = xe_gt_sriov_pf_config_print_dbs,
        },
+       {
+               "lmem_provisioned",
+               .show = xe_gt_debugfs_simple_show,
+               .data = xe_gt_sriov_pf_config_print_lmem,
+       },
        {
                "runtime_registers",
                .show = xe_gt_debugfs_simple_show,