On Mon, 2022-03-14 at 19:08 -0700, Matt Roper wrote:

From: John Harrison John.C.Harrison@Intel.com

sseu_dev_info is already a pretty large structure which will likely continue to grow when future platforms increase potential DSS and EU counts. Let's switch the stack placement of this structure in debugfs with a dynamic allocation.

Reviewed-by: José Roberto de Souza jose.souza@intel.com

Signed-off-by: John Harrison John.C.Harrison@Intel.com Signed-off-by: Matt Roper matthew.d.roper@intel.com

---

drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c | 22 +++++++++++++------- 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c b/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c index 6b944de48666..2d5d011e01db 100644 --- a/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c +++ b/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c @@ -248,7 +248,7 @@ int intel_sseu_status(struct seq_file *m, struct intel_gt *gt) { struct drm_i915_private *i915 = gt->i915; const struct intel_gt_info *info = &gt->info;

• struct sseu_dev_info sseu;

• struct sseu_dev_info *sseu; intel_wakeref_t wakeref;

  if (GRAPHICS_VER(i915) < 8)

@@ -258,23 +258,29 @@ int intel_sseu_status(struct seq_file *m, struct intel_gt *gt) i915_print_sseu_info(m, true, HAS_POOLED_EU(i915), &info->sseu);

seq_puts(m, "SSEU Device Status\n");

• memset(&sseu, 0, sizeof(sseu));
• intel_sseu_set_info(&sseu, info->sseu.max_slices,

• sseu = kzalloc(sizeof(*sseu), GFP_KERNEL);

• if (!sseu)

• return -ENOMEM;
  

• intel_sseu_set_info(sseu, info->sseu.max_slices, info->sseu.max_subslices, info->sseu.max_eus_per_subslice);

  with_intel_runtime_pm(&i915->runtime_pm, wakeref) { if (IS_CHERRYVIEW(i915))

• 	cherryview_sseu_device_status(gt, &sseu);
  

• 	cherryview_sseu_device_status(gt, sseu);
  

  else if (IS_BROADWELL(i915))

• 	bdw_sseu_device_status(gt, &sseu);
  

• 	bdw_sseu_device_status(gt, sseu);
  

  else if (GRAPHICS_VER(i915) == 9)

• 	gen9_sseu_device_status(gt, &sseu);
  

• 	gen9_sseu_device_status(gt, sseu);
  

  else if (GRAPHICS_VER(i915) >= 11)

• 	gen11_sseu_device_status(gt, &sseu);
  

• 	gen11_sseu_device_status(gt, sseu);
  

  }

• i915_print_sseu_info(m, false, HAS_POOLED_EU(i915), &sseu);

• i915_print_sseu_info(m, false, HAS_POOLED_EU(i915), sseu);

• kfree(sseu);

  return 0;

}