[PATCH v5 4/6] drm/i915: add rcs topology to error state

[Lionel Landwerlin <lionel.g.landwerlin@intel.com>]

This might be useful information for developers looking at an error
state.

v2: Place topology towards the end of the error state (Chris)

v3: Reuse common printing code (Michal)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
---
 drivers/gpu/drm/i915/i915_gpu_error.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 944059322daa..aaa34a2bebe1 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -605,6 +605,14 @@ static void err_print_uc(struct drm_i915_error_state_buf *m,
 	print_error_obj(m, NULL, "GuC log buffer", error_uc->guc_log);
 }
 
+static void err_print_rcs_topology(struct drm_i915_error_state_buf *m,
+				   const struct sseu_dev_info *sseu)
+{
+	struct drm_printer p = i915_error_printer(m);
+
+	intel_device_info_dump_topology(sseu, &p);
+}
+
 int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
 			    const struct i915_gpu_state *error)
 {
@@ -787,6 +795,7 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
 		intel_display_print_error_state(m, error->display);
 
 	err_print_capabilities(m, &error->device_info);
+	err_print_rcs_topology(m, &INTEL_INFO(dev_priv)->sseu);
 	err_print_params(m, &error->params);
 	err_print_uc(m, &error->uc);
 
-- 
2.15.1

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