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drm/i915/xe3lpd: Update bandwidth parameters for display version 30.02

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Bandwidth parameters for WCL have been updated with respect to
previous display releases. Encode them into xe3lpd_3002_sa_info and use
that new struct.

-v2: Resolve conflict to apply patch.

Bspec: 68859
Signed-off-by: Matt Atwood <matthew.s.atwood@intel.com>
Signed-off-by: Dnyaneshwar Bhadane <dnyaneshwar.bhadane@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20250613193146.3549862-5-dnyaneshwar.bhadane@intel.com
This commit is contained in:
Matt Atwood 2025-06-14 01:01:41 +05:30 committed by Matt Roper
parent b2f7e30d2e
commit bd031cd19f
1 changed files with 10 additions and 1 deletions
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11
drivers/gpu/drm/i915/display/intel_bw.c
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@ -420,6 +420,13 @@ static const struct intel_sa_info xe3lpd_sa_info = {
.derating = 10,
};
static const struct intel_sa_info xe3lpd_3002_sa_info = {
.deburst = 32,
.deprogbwlimit = 22, /* GB/s */
.displayrtids = 256,
.derating = 10,
};
static int icl_get_bw_info(struct intel_display *display,
const struct dram_info *dram_info,
const struct intel_sa_info *sa)
@ -771,7 +778,9 @@ void intel_bw_init_hw(struct intel_display *display)
if (!HAS_DISPLAY(display))
return;
if (DISPLAY_VER(display) >= 30)
if (DISPLAY_VERx100(display) >= 3002)
tgl_get_bw_info(display, dram_info, &xe3lpd_3002_sa_info);
else if (DISPLAY_VER(display) >= 30)
tgl_get_bw_info(display, dram_info, &xe3lpd_sa_info);
else if (DISPLAY_VERx100(display) >= 1401 && display->platform.dgfx &&
dram_info->type == INTEL_DRAM_GDDR_ECC)