From: Matt Atwood <matthew.s.atw...@intel.com>
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.atw...@intel.com>
Signed-off-by: Dnyaneshwar Bhadane <dnyaneshwar.bhad...@intel.com>
Reviewed-by: Matt Roper <matthew.d.ro...@intel.com>
---
drivers/gpu/drm/i915/display/intel_bw.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_bw.c
b/drivers/gpu/drm/i915/display/intel_bw.c
index 6c2ab2e0dc91..a515241d80db 100644
--- a/drivers/gpu/drm/i915/display/intel_bw.c
+++ b/drivers/gpu/drm/i915/display/intel_bw.c
@@ -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)
--
2.34.1
