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drm/i915/adl_s: Update memory bandwidth parameters

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Just like RKL, the ADL_S platform also has different memory
characteristics from past platforms.  Update the values used
by our memory bandwidth calculations accordingly.

v2: Fix minor nitpick for shifting ADLS case above RKL(based on platform
order).(mdroper)

Bspec: 64631
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Signed-off-by: Tejas Upadhyay <tejaskumarx.surendrakumar.upadhyay@intel.com>
Signed-off-by: Aditya Swarup <aditya.swarup@intel.com>
Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210129182945.217078-7-aditya.swarup@intel.com
This commit is contained in:
Tejas Upadhyay 2021-01-29 10:29:43 -08:00 committed by José Roberto de Souza
parent 75b81fbbca
commit 918cc93468
1 changed files with 9 additions and 1 deletions
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10
drivers/gpu/drm/i915/display/intel_bw.c
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@ -205,6 +205,12 @@ static const struct intel_sa_info rkl_sa_info = {
.displayrtids = 128,
};
static const struct intel_sa_info adls_sa_info = {
.deburst = 16,
.deprogbwlimit = 38, /* GB/s */
.displayrtids = 256,
};
static int icl_get_bw_info(struct drm_i915_private *dev_priv, const struct intel_sa_info *sa)
{
struct intel_qgv_info qi = {};
@ -315,7 +321,9 @@ void intel_bw_init_hw(struct drm_i915_private *dev_priv)
if (!HAS_DISPLAY(dev_priv))
return;
if (IS_ROCKETLAKE(dev_priv))
if (IS_ALDERLAKE_S(dev_priv))
icl_get_bw_info(dev_priv, &adls_sa_info);
else if (IS_ROCKETLAKE(dev_priv))
icl_get_bw_info(dev_priv, &rkl_sa_info);
else if (IS_GEN(dev_priv, 12))
icl_get_bw_info(dev_priv, &tgl_sa_info);