linux-kernel - [PATCH 1/6] soc: qcom: Move some socinfo defines to the header, expand them

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Message-Id: <20240405-topic-smem_speedbin-v1-1-ce2b864251b1@linaro.org>
Date: Fri, 05 Apr 2024 10:41:29 +0200
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>, Rob Clark <robdclark@...il.com>, 
 Abhinav Kumar <quic_abhinavk@...cinc.com>, 
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, Sean Paul <sean@...rly.run>, 
 Marijn Suijten <marijn.suijten@...ainline.org>, 
 David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org, 
 dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org, 
 devicetree@...r.kernel.org, Neil Armstrong <neil.armstrong@...aro.org>, 
 Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH 1/6] soc: qcom: Move some socinfo defines to the header,
 expand them

In preparation for parsing the chip "feature code" (FC) and "product
code" (PC) (essentially the parameters that let us conclusively
characterize the sillicon we're running on, including various speed
bins), move the socinfo version defines to the public header and
include some more FC/PC defines.

Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 drivers/soc/qcom/socinfo.c       |  8 --------
 include/linux/soc/qcom/socinfo.h | 36 ++++++++++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+), 8 deletions(-)

diff --git a/drivers/soc/qcom/socinfo.c b/drivers/soc/qcom/socinfo.c
index 277c07a6603d..cf4616a468f2 100644
--- a/drivers/soc/qcom/socinfo.c
+++ b/drivers/soc/qcom/socinfo.c
@@ -21,14 +21,6 @@
 
 #include <dt-bindings/arm/qcom,ids.h>
 
-/*
- * SoC version type with major number in the upper 16 bits and minor
- * number in the lower 16 bits.
- */
-#define SOCINFO_MAJOR(ver) (((ver) >> 16) & 0xffff)
-#define SOCINFO_MINOR(ver) ((ver) & 0xffff)
-#define SOCINFO_VERSION(maj, min)  ((((maj) & 0xffff) << 16)|((min) & 0xffff))
-
 /* Helper macros to create soc_id table */
 #define qcom_board_id(id) QCOM_ID_ ## id, __stringify(id)
 #define qcom_board_id_named(id, name) QCOM_ID_ ## id, (name)
diff --git a/include/linux/soc/qcom/socinfo.h b/include/linux/soc/qcom/socinfo.h
index e78777bb0f4a..ba7f683bd32c 100644
--- a/include/linux/soc/qcom/socinfo.h
+++ b/include/linux/soc/qcom/socinfo.h
@@ -3,6 +3,8 @@
 #ifndef __QCOM_SOCINFO_H__
 #define __QCOM_SOCINFO_H__
 
+#include <linux/types.h>
+
 /*
  * SMEM item id, used to acquire handles to respective
  * SMEM region.
@@ -12,6 +14,14 @@
 #define SMEM_SOCINFO_BUILD_ID_LENGTH	32
 #define SMEM_SOCINFO_CHIP_ID_LENGTH	32
 
+/*
+ * SoC version type with major number in the upper 16 bits and minor
+ * number in the lower 16 bits.
+ */
+#define SOCINFO_MAJOR(ver) (((ver) >> 16) & 0xffff)
+#define SOCINFO_MINOR(ver) ((ver) & 0xffff)
+#define SOCINFO_VERSION(maj, min)  ((((maj) & 0xffff) << 16)|((min) & 0xffff))
+
 /* Socinfo SMEM item structure */
 struct socinfo {
 	__le32 fmt;
@@ -74,4 +84,30 @@ struct socinfo {
 	__le32 boot_core;
 };
 
+/* Internal feature codes */
+enum feature_code {
+	/* External feature codes */
+	SOCINFO_FC_UNKNOWN = 0x0,
+	SOCINFO_FC_AA,
+	SOCINFO_FC_AB,
+	SOCINFO_FC_AC,
+	SOCINFO_FC_AD,
+	SOCINFO_FC_AE,
+	SOCINFO_FC_AF,
+	SOCINFO_FC_AG,
+	SOCINFO_FC_AH,
+	SOCINFO_FC_EXT_RESERVE,
+};
+
+/* Internal feature codes */
+/* Valid values: 0 <= n <= 0xf */
+#define SOCINFO_FC_Yn(n)		(0xf1 + n)
+#define SOCINFO_FC_INT_RESERVE		SOCINFO_FC_Yn(0x10)
+
+/* Product codes */
+#define SOCINFO_PC_UNKNOWN		0
+/* Valid values: 0 <= n <= 8, the rest is reserved */
+#define SOCINFO_PCn(n)			(n + 1)
+#define SOCINFO_PC_RESERVE		(BIT(31) - 1)
+
 #endif

-- 
2.40.1