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drm/xe/vf: Fix guc_info debugfs for VFs

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The guc_info debugfs attempts to read a bunch of registers that the VFs
doesn't have access to, so fix it by skipping the reads.

Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/4775
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Lukasz Laguna <lukasz.laguna@intel.com>
Reviewed-by: Lukasz Laguna <lukasz.laguna@intel.com>
Link: https://lore.kernel.org/r/20250423173908.1571412-1-daniele.ceraolospurio@intel.com
This commit is contained in:
Daniele Ceraolo Spurio
2025-04-23 10:39:08 -07:00
parent f64cf7b681
commit dba7d17d50
1 changed files with 21 additions and 19 deletions
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40
drivers/gpu/drm/xe/xe_guc.c
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@@ -1510,30 +1510,32 @@ void xe_guc_print_info(struct xe_guc *guc, struct drm_printer *p)
xe_uc_fw_print(&guc->fw, p);
fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT);
if (!fw_ref)
return;
if (!IS_SRIOV_VF(gt_to_xe(gt))) {
fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT);
if (!fw_ref)
return;
status = xe_mmio_read32(&gt->mmio, GUC_STATUS);
status = xe_mmio_read32(&gt->mmio, GUC_STATUS);
drm_printf(p, "\nGuC status 0x%08x:\n", status);
drm_printf(p, "\tBootrom status = 0x%x\n",
REG_FIELD_GET(GS_BOOTROM_MASK, status));
drm_printf(p, "\tuKernel status = 0x%x\n",
REG_FIELD_GET(GS_UKERNEL_MASK, status));
drm_printf(p, "\tMIA Core status = 0x%x\n",
REG_FIELD_GET(GS_MIA_MASK, status));
drm_printf(p, "\tLog level = %d\n",
xe_guc_log_get_level(&guc->log));
drm_printf(p, "\nGuC status 0x%08x:\n", status);
drm_printf(p, "\tBootrom status = 0x%x\n",
REG_FIELD_GET(GS_BOOTROM_MASK, status));
drm_printf(p, "\tuKernel status = 0x%x\n",
REG_FIELD_GET(GS_UKERNEL_MASK, status));
drm_printf(p, "\tMIA Core status = 0x%x\n",
REG_FIELD_GET(GS_MIA_MASK, status));
drm_printf(p, "\tLog level = %d\n",
xe_guc_log_get_level(&guc->log));
drm_puts(p, "\nScratch registers:\n");
for (i = 0; i < SOFT_SCRATCH_COUNT; i++) {
drm_printf(p, "\t%2d: \t0x%x\n",
i, xe_mmio_read32(&gt->mmio, SOFT_SCRATCH(i)));
drm_puts(p, "\nScratch registers:\n");
for (i = 0; i < SOFT_SCRATCH_COUNT; i++) {
drm_printf(p, "\t%2d: \t0x%x\n",
i, xe_mmio_read32(&gt->mmio, SOFT_SCRATCH(i)));
}
xe_force_wake_put(gt_to_fw(gt), fw_ref);
}
xe_force_wake_put(gt_to_fw(gt), fw_ref);
drm_puts(p, "\n");
xe_guc_ct_print(&guc->ct, p, false);