On Wed, Jan 20, 2021 at 07:16:11AM -0800, Jose Souza wrote:
As it now it is always required for GEN12+ the is_16gb_dimm name
do not make sense for GEN12+.
Signed-off-by: José Roberto de Souza <jose.souza@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_drv.h | 2 +-
drivers/gpu/drm/i915/intel_dram.c | 10 +++++-----
drivers/gpu/drm/i915/intel_pm.c | 2 +-
3 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index a2ae21082b34..adc008c65b14 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1134,7 +1134,7 @@ struct drm_i915_private {
} wm;
struct dram_info {
- bool is_16gb_dimm;
+ bool wm_lv_0_adjust_needed;
u8 num_channels;
bool symmetric_memory;
enum intel_dram_type {
diff --git a/drivers/gpu/drm/i915/intel_dram.c b/drivers/gpu/drm/i915/intel_dram.c
index 4871d48589f9..a5850f0f25aa 100644
--- a/drivers/gpu/drm/i915/intel_dram.c
+++ b/drivers/gpu/drm/i915/intel_dram.c
@@ -207,7 +207,7 @@ skl_dram_get_channels_info(struct drm_i915_private *i915)
return -EINVAL;
}
- dram_info->is_16gb_dimm = ch0.is_16gb_dimm || ch1.is_16gb_dimm;
+ dram_info->wm_lv_0_adjust_needed = ch0.is_16gb_dimm || ch1.is_16gb_dimm;
dram_info->symmetric_memory = intel_is_dram_symmetric(&ch0, &ch1);
@@ -475,7 +475,7 @@ static int gen11_get_dram_info(struct drm_i915_private *i915)
return ret;
} else {
/* Always needed for GEN12+ */
- i915->dram_info.is_16gb_dimm = true;
+ i915->dram_info.wm_lv_0_adjust_needed = true;
}
return icl_pcode_read_mem_global_info(i915);
@@ -491,7 +491,7 @@ int intel_dram_detect(struct drm_i915_private *i915)
* This is only used for the level 0 watermark latency
* w/a which does not apply to bxt/glk.
*/
- dram_info->is_16gb_dimm = !IS_GEN9_LP(i915);
+ dram_info->wm_lv_0_adjust_needed = !IS_GEN9_LP(i915);
comment above also needs to be updated. With that:
Reviewed-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
Lucas De Marchi
if (INTEL_GEN(i915) < 9 || !HAS_DISPLAY(i915))
return 0;
@@ -510,8 +510,8 @@ int intel_dram_detect(struct drm_i915_private *i915)
drm_dbg_kms(&i915->drm, "DRAM channels: %u\n", dram_info->num_channels);
- drm_dbg_kms(&i915->drm, "DRAM 16Gb DIMMs: %s\n",
- yesno(dram_info->is_16gb_dimm));
+ drm_dbg_kms(&i915->drm, "Watermark level 0 adjustment needed: %s\n",
+ yesno(dram_info->wm_lv_0_adjust_needed));
return 0;
}
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 992fce8b8d13..f778aae19f82 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2930,7 +2930,7 @@ static void intel_read_wm_latency(struct drm_i915_private *dev_priv,
* any underrun. If not able to get Dimm info assume 16GB dimm
* to avoid any underrun.
*/
- if (dev_priv->dram_info.is_16gb_dimm)
+ if (dev_priv->dram_info.wm_lv_0_adjust_needed)
wm[0] += 1;
} else if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
--
2.30.0
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