Commit 626765bb authored by Vinod Govindapillai's avatar Vinod Govindapillai Committed by Radhakrishna Sripada

drm/i915: fix the derating percentage for MTL

Follow the values from bspec for the percentage overhead for
efficiency in MTL BW calculations.

Bspec: 64631
Signed-off-by: default avatarVinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: default avatarMatt Roper <matthew.d.roper@intel.com>
Signed-off-by: default avatarRadhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230606093509.221709-2-vinod.govindapillai@intel.com
parent 9831a9d1
...@@ -379,7 +379,7 @@ static const struct intel_sa_info mtl_sa_info = { ...@@ -379,7 +379,7 @@ static const struct intel_sa_info mtl_sa_info = {
.deburst = 32, .deburst = 32,
.deprogbwlimit = 38, /* GB/s */ .deprogbwlimit = 38, /* GB/s */
.displayrtids = 256, .displayrtids = 256,
.derating = 20, .derating = 10,
}; };
static int icl_get_bw_info(struct drm_i915_private *dev_priv, const struct intel_sa_info *sa) static int icl_get_bw_info(struct drm_i915_private *dev_priv, const struct intel_sa_info *sa)
......
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