commit b2c6eaf27b508ce5f63e59e3cfb6ae0231685eee
author José Roberto de Souza <jose.souza@intel.com> Fri May 14 08:37:08 2021 -0700
committer Matt Roper <matthew.d.roper@intel.com> Fri May 14 19:48:38 2021 -0700
tree 2f85ce93786b88bc624ecb89711c69a131315aaf
parent d961eb20adb642c62ad588666e84444240ef6288

drm/i915/adl_p: Add IPs stepping mapping

This will allow us to better implement workarounds.

Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210514153711.2359617-17-matthew.d.roper@intel.com

drivers/gpu/drm/i915/intel_step.c

diff --git a/drivers/gpu/drm/i915/intel_step.c b/drivers/gpu/drm/i915/intel_step.c
index 4d71547..ba9479a 100644
--- a/drivers/gpu/drm/i915/intel_step.c
+++ b/drivers/gpu/drm/i915/intel_step.c
@@ -47,6 +47,13 @@ static const struct intel_step_info adls_revid_step_tbl[] = {
 	[0xC] = { .gt_step = STEP_D0, .display_step = STEP_C0 },
 };
 
+static const struct intel_step_info adlp_revid_step_tbl[] = {
+	[0x0] = { .gt_step = STEP_A0, .display_step = STEP_A0 },
+	[0x4] = { .gt_step = STEP_B0, .display_step = STEP_B0 },
+	[0x8] = { .gt_step = STEP_C0, .display_step = STEP_C0 },
+	[0xC] = { .gt_step = STEP_C0, .display_step = STEP_D0 },
+};
+
 void intel_step_init(struct drm_i915_private *i915)
 {
 	const struct intel_step_info *revids = NULL;
@@ -54,7 +61,10 @@ void intel_step_init(struct drm_i915_private *i915)
 	int revid = INTEL_REVID(i915);
 	struct intel_step_info step = {};
 
-	if (IS_ALDERLAKE_S(i915)) {
+	if (IS_ALDERLAKE_P(i915)) {
+		revids = adlp_revid_step_tbl;
+		size = ARRAY_SIZE(adlp_revid_step_tbl);
+	} else if (IS_ALDERLAKE_S(i915)) {
 		revids = adls_revid_step_tbl;
 		size = ARRAY_SIZE(adls_revid_step_tbl);
 	} else if (IS_TGL_U(i915) || IS_TGL_Y(i915)) {