linux-kernel - [PATCH 2/2] drm/panfrost: Merge some feature lists

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Date:   Sun,  9 Jan 2022 12:09:19 -0500
From:   Alyssa Rosenzweig <alyssa.rosenzweig@...labora.com>
To:     dri-devel@...ts.freedesktop.org
Cc:     Rob Herring <robh@...nel.org>,
        Tomeu Vizoso <tomeu.vizoso@...labora.com>,
        Steven Price <steven.price@....com>,
        Alyssa Rosenzweig <alyssa.rosenzweig@...labora.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] drm/panfrost: Merge some feature lists

Now that we only list features of interest to kernel space, lots of GPUs
have the same feature bits. To cut down on the repetition in the file,
merge feature lists that are identical between similar GPUs.

Note that this leaves some unmerged identical Bifrost feature lists, as
there are more features affecting Bifrost kernel space that we do not
yet hanlde.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@...labora.com>
---
 drivers/gpu/drm/panfrost/panfrost_features.h | 40 ++++----------------
 1 file changed, 7 insertions(+), 33 deletions(-)

diff --git a/drivers/gpu/drm/panfrost/panfrost_features.h b/drivers/gpu/drm/panfrost/panfrost_features.h
index f557fad5d5ff..34f2bae1ec8c 100644
--- a/drivers/gpu/drm/panfrost/panfrost_features.h
+++ b/drivers/gpu/drm/panfrost/panfrost_features.h
@@ -27,14 +27,9 @@ enum panfrost_hw_feature {
 	BIT_ULL(HW_FEATURE_THREAD_GROUP_SPLIT) | \
 	BIT_ULL(HW_FEATURE_V4))
 
-#define hw_features_t620 (\
-	BIT_ULL(HW_FEATURE_THREAD_GROUP_SPLIT) | \
-	BIT_ULL(HW_FEATURE_V4))
-
-#define hw_features_t720 (\
-	BIT_ULL(HW_FEATURE_THREAD_GROUP_SPLIT) | \
-	BIT_ULL(HW_FEATURE_V4))
+#define hw_features_t620 hw_features_t600
 
+#define hw_features_t720 hw_features_t600
 
 #define hw_features_t760 (\
 	BIT_ULL(HW_FEATURE_JOBCHAIN_DISAMBIGUATION) | \
@@ -42,26 +37,13 @@ enum panfrost_hw_feature {
 	BIT_ULL(HW_FEATURE_XAFFINITY) | \
 	BIT_ULL(HW_FEATURE_THREAD_GROUP_SPLIT))
 
-// T860
-#define hw_features_t860 (\
-	BIT_ULL(HW_FEATURE_JOBCHAIN_DISAMBIGUATION) | \
-	BIT_ULL(HW_FEATURE_PWRON_DURING_PWROFF_TRANS) | \
-	BIT_ULL(HW_FEATURE_XAFFINITY) | \
-	BIT_ULL(HW_FEATURE_THREAD_GROUP_SPLIT))
+#define hw_features_t860 hw_features_t760
 
-#define hw_features_t880 hw_features_t860
+#define hw_features_t880 hw_features_t760
 
-#define hw_features_t830 (\
-	BIT_ULL(HW_FEATURE_JOBCHAIN_DISAMBIGUATION) | \
-	BIT_ULL(HW_FEATURE_PWRON_DURING_PWROFF_TRANS) | \
-	BIT_ULL(HW_FEATURE_XAFFINITY) | \
-	BIT_ULL(HW_FEATURE_THREAD_GROUP_SPLIT))
+#define hw_features_t830 hw_features_t760
 
-#define hw_features_t820 (\
-	BIT_ULL(HW_FEATURE_JOBCHAIN_DISAMBIGUATION) | \
-	BIT_ULL(HW_FEATURE_PWRON_DURING_PWROFF_TRANS) | \
-	BIT_ULL(HW_FEATURE_XAFFINITY) | \
-	BIT_ULL(HW_FEATURE_THREAD_GROUP_SPLIT))
+#define hw_features_t820 hw_features_t760
 
 #define hw_features_g71 (\
 	BIT_ULL(HW_FEATURE_JOBCHAIN_DISAMBIGUATION) | \
@@ -82,15 +64,7 @@ enum panfrost_hw_feature {
 	BIT_ULL(HW_FEATURE_PROTECTED_DEBUG_MODE) | \
 	BIT_ULL(HW_FEATURE_COHERENCY_REG))
 
-#define hw_features_g51 (\
-	BIT_ULL(HW_FEATURE_JOBCHAIN_DISAMBIGUATION) | \
-	BIT_ULL(HW_FEATURE_PWRON_DURING_PWROFF_TRANS) | \
-	BIT_ULL(HW_FEATURE_XAFFINITY) | \
-	BIT_ULL(HW_FEATURE_THREAD_GROUP_SPLIT) | \
-	BIT_ULL(HW_FEATURE_FLUSH_REDUCTION) | \
-	BIT_ULL(HW_FEATURE_PROTECTED_MODE) | \
-	BIT_ULL(HW_FEATURE_PROTECTED_DEBUG_MODE) | \
-	BIT_ULL(HW_FEATURE_COHERENCY_REG))
+#define hw_features_g51 hw_features_g72
 
 #define hw_features_g52 (\
 	BIT_ULL(HW_FEATURE_JOBCHAIN_DISAMBIGUATION) | \
-- 
2.34.1