[Intel-xe] [PATCH 1/2] drm/xe/adlp: Add revid => step mapping

[Lucas De Marchi]

On Wed, Apr 19, 2023 at 02:37:02PM -0700, Matt Roper wrote:
>Setup the mapping from PCI revid to IP stepping for ADL-P (and its RPL-P
>subplatform) in case this information becomes important for implementing
>workarounds.
>
>Bspec: 55376
>Signed-off-by: Matt Roper <matthew.d.roper at intel.com>


Reviewed-by: Lucas De Marchi <lucas.demarchi at intel.com>

Lucas De Marchi

>---
> drivers/gpu/drm/xe/xe_step.c | 17 +++++++++++++++++
> 1 file changed, 17 insertions(+)
>
>diff --git a/drivers/gpu/drm/xe/xe_step.c b/drivers/gpu/drm/xe/xe_step.c
>index ee927dfd3eb3..bcdb4601c2f6 100644
>--- a/drivers/gpu/drm/xe/xe_step.c
>+++ b/drivers/gpu/drm/xe/xe_step.c
>@@ -60,6 +60,17 @@ static const struct xe_step_info adls_revids[] = {
> 	[0xC] = { COMMON_GT_MEDIA_STEP(D0), .display = STEP_C0 },
> };
>
>+static const struct xe_step_info adlp_revids[] = {
>+	[0x0] = { COMMON_GT_MEDIA_STEP(A0), .display = STEP_A0 },
>+	[0x4] = { COMMON_GT_MEDIA_STEP(B0), .display = STEP_B0 },
>+	[0x8] = { COMMON_GT_MEDIA_STEP(C0), .display = STEP_C0 },
>+	[0xC] = { COMMON_GT_MEDIA_STEP(C0), .display = STEP_D0 },
>+};
>+
>+static const struct xe_step_info adlp_rpl_revids[] = {
>+	[0x4] = { COMMON_GT_MEDIA_STEP(C0), .display = STEP_E0 },
>+};
>+
> static const struct xe_step_info dg2_g10_revid_step_tbl[] = {
> 	[0x0] = { COMMON_GT_MEDIA_STEP(A0), .display = STEP_A0 },
> 	[0x1] = { COMMON_GT_MEDIA_STEP(A1), .display = STEP_A0 },
>@@ -118,6 +129,12 @@ struct xe_step_info xe_step_get(struct xe_device *xe)
> 	} else if (xe->info.subplatform == XE_SUBPLATFORM_DG2_G12) {
> 		revids = dg2_g12_revid_step_tbl;
> 		size = ARRAY_SIZE(dg2_g12_revid_step_tbl);
>+	} else if (xe->info.subplatform == XE_SUBPLATFORM_ADLP_RPLU) {
>+		revids = adlp_rpl_revids;
>+		size = ARRAY_SIZE(adlp_rpl_revids);
>+	} else if (xe->info.platform == XE_ALDERLAKE_P) {
>+		revids = adlp_revids;
>+		size = ARRAY_SIZE(adlp_revids);
> 	} else if (xe->info.platform == XE_ALDERLAKE_S) {
> 		revids = adls_revids;
> 		size = ARRAY_SIZE(adls_revids);
>-- 
>2.40.0
>