Calculate the time that GuC takes to load.
This information could be very useful in
determining if GuC is taking unreasonably long time
to load in a certain platforms.
Cc: Oscar Mateo <oscar.mateo@xxxxxxxxx>
Cc: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_debugfs.c | 4 ++++
drivers/gpu/drm/i915/intel_guc_loader.c | 4 ++++
drivers/gpu/drm/i915/intel_uc.h | 3 +++
3 files changed, 11 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 48572b157222..9283fc714705 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2379,6 +2379,10 @@ static int i915_guc_load_status_info(struct seq_file *m, void *data)
guc_fw->major_ver_wanted, guc_fw->minor_ver_wanted);
seq_printf(m, "\tversion found: %d.%d\n",
guc_fw->major_ver_found, guc_fw->minor_ver_found);
+ seq_printf(m, "\tLoad time is %lu ms\n",
+ jiffies_to_msecs(dev_priv->guc.guc_finish_load -
+ dev_priv->guc.guc_start_load));
+
seq_printf(m, "\theader: offset is %d; size = %d\n",
guc_fw->header_offset, guc_fw->header_size);
seq_printf(m, "\tuCode: offset is %d; size = %d\n",
diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c b/drivers/gpu/drm/i915/intel_guc_loader.c
index 8b0ae7fce7f2..1c5059b930f9 100644
--- a/drivers/gpu/drm/i915/intel_guc_loader.c
+++ b/drivers/gpu/drm/i915/intel_guc_loader.c
@@ -194,6 +194,7 @@ static inline bool guc_ucode_response(struct drm_i915_private *dev_priv,
static int guc_ucode_xfer_dma(struct drm_i915_private *dev_priv,
struct i915_vma *vma)
{
+ struct intel_guc *guc = &dev_priv->guc;
struct intel_uc_fw *guc_fw = &dev_priv->guc.fw;
unsigned long offset;
struct sg_table *sg = vma->pages;
@@ -226,6 +227,7 @@ static int guc_ucode_xfer_dma(struct drm_i915_private *dev_priv,
/* Finally start the DMA */
I915_WRITE(DMA_CTRL, _MASKED_BIT_ENABLE(UOS_MOVE | START_DMA));
+ guc->guc_start_load = jiffies;
/*
* Wait for the DMA to complete & the GuC to start up.
@@ -240,6 +242,8 @@ static int guc_ucode_xfer_dma(struct drm_i915_private *dev_priv,
DRM_DEBUG_DRIVER("DMA status 0x%x, GuC status 0x%x\n",
I915_READ(DMA_CTRL), status);
+ guc->guc_finish_load = jiffies;
+
if ((status & GS_BOOTROM_MASK) == GS_BOOTROM_RSA_FAILED) {
DRM_ERROR("GuC firmware signature verification failed\n");
ret = -ENOEXEC;
diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h
index 22ae52b17b0f..3d5a15ed1995 100644
--- a/drivers/gpu/drm/i915/intel_uc.h
+++ b/drivers/gpu/drm/i915/intel_uc.h
@@ -210,6 +210,9 @@ struct intel_guc {
/* GuC's FW specific notify function */
void (*notify)(struct intel_guc *guc);
+
+ unsigned long guc_start_load;
+ unsigned long guc_finish_load;
};
struct intel_huc {
--
2.11.0
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