Merge branch '20240430-a750-raytracing-v3-2-7f57c5ac082d@gmail.com' into drivers-for-6.11

Merge SMEM and SCM patches related to GPU features through a topic
branch to make it possible to share these with the msm-next DRM tree.

drivers/firmware/qcom/qcom_scm.c

@@ -1393,6 +1393,20 @@ int qcom_scm_lmh_dcvsh(u32 payload_fn, u32 payload_reg, u32 payload_val,
 }
 EXPORT_SYMBOL_GPL(qcom_scm_lmh_dcvsh);
 
+int qcom_scm_gpu_init_regs(u32 gpu_req)
+{
+	struct qcom_scm_desc desc = {
+		.svc = QCOM_SCM_SVC_GPU,
+		.cmd = QCOM_SCM_SVC_GPU_INIT_REGS,
+		.arginfo = QCOM_SCM_ARGS(1),
+		.args[0] = gpu_req,
+		.owner = ARM_SMCCC_OWNER_SIP,
+	};
+
+	return qcom_scm_call(__scm->dev, &desc, NULL);
+}
+EXPORT_SYMBOL_GPL(qcom_scm_gpu_init_regs);
+
 static int qcom_scm_find_dload_address(struct device *dev, u64 *addr)
 {
 	struct device_node *tcsr;

drivers/firmware/qcom/qcom_scm.h

@@ -138,6 +138,9 @@ int scm_legacy_call(struct device *dev, const struct qcom_scm_desc *desc,
 #define QCOM_SCM_WAITQ_RESUME			0x02
 #define QCOM_SCM_WAITQ_GET_WQ_CTX		0x03
 
+#define QCOM_SCM_SVC_GPU			0x28
+#define QCOM_SCM_SVC_GPU_INIT_REGS		0x01
+
 /* common error codes */
 #define QCOM_SCM_V2_EBUSY	-12
 #define QCOM_SCM_ENOMEM		-5

drivers/soc/qcom/smem.c

@@ -795,6 +795,39 @@ int qcom_smem_get_soc_id(u32 *id)
 }
 EXPORT_SYMBOL_GPL(qcom_smem_get_soc_id);
 
+/**
+ * qcom_smem_get_feature_code() - return the feature code
+ * @code: On success, return the feature code here.
+ *
+ * Look up the feature code identifier from SMEM and return it.
+ *
+ * Return: 0 on success, negative errno on failure.
+ */
+int qcom_smem_get_feature_code(u32 *code)
+{
+	struct socinfo *info;
+	u32 raw_code;
+
+	info = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_HW_SW_BUILD_ID, NULL);
+	if (IS_ERR(info))
+		return PTR_ERR(info);
+
+	/* This only makes sense for socinfo >= 16 */
+	if (__le32_to_cpu(info->fmt) < SOCINFO_VERSION(0, 16))
+		return -EOPNOTSUPP;
+
+	raw_code = __le32_to_cpu(info->feature_code);
+
+	/* Ensure the value makes sense */
+	if (raw_code > SOCINFO_FC_INT_MAX)
+		raw_code = SOCINFO_FC_UNKNOWN;
+
+	*code = raw_code;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(qcom_smem_get_feature_code);
+
 static int qcom_smem_get_sbl_version(struct qcom_smem *smem)
 {
 	struct smem_header *header;

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)

include/linux/firmware/qcom/qcom_scm.h

@@ -115,6 +115,29 @@ int qcom_scm_lmh_dcvsh(u32 payload_fn, u32 payload_reg, u32 payload_val,
 int qcom_scm_lmh_profile_change(u32 profile_id);
 bool qcom_scm_lmh_dcvsh_available(void);
 
+/*
+ * Request TZ to program set of access controlled registers necessary
+ * irrespective of any features
+ */
+#define QCOM_SCM_GPU_ALWAYS_EN_REQ BIT(0)
+/*
+ * Request TZ to program BCL id to access controlled register when BCL is
+ * enabled
+ */
+#define QCOM_SCM_GPU_BCL_EN_REQ BIT(1)
+/*
+ * Request TZ to program set of access controlled register for CLX feature
+ * when enabled
+ */
+#define QCOM_SCM_GPU_CLX_EN_REQ BIT(2)
+/*
+ * Request TZ to program tsense ids to access controlled registers for reading
+ * gpu temperature sensors
+ */
+#define QCOM_SCM_GPU_TSENSE_EN_REQ BIT(3)
+
+int qcom_scm_gpu_init_regs(u32 gpu_req);
+
 #ifdef CONFIG_QCOM_QSEECOM
 
 int qcom_scm_qseecom_app_get_id(const char *app_name, u32 *app_id);

include/linux/soc/qcom/smem.h

@@ -13,5 +13,6 @@ int qcom_smem_get_free_space(unsigned host);
 phys_addr_t qcom_smem_virt_to_phys(void *p);
 
 int qcom_smem_get_soc_id(u32 *id);
+int qcom_smem_get_feature_code(u32 *code);
 
 #endif

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 +84,28 @@ struct socinfo {
 	__le32 boot_core;
 };
 
+/* Internal feature codes */
+enum qcom_socinfo_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,
+};
+
+/* Internal feature codes */
+/* Valid values: 0 <= n <= 0xf */
+#define SOCINFO_FC_Yn(n)		(0xf1 + (n))
+#define SOCINFO_FC_INT_MAX		SOCINFO_FC_Yn(0xf)
+
+/* Product codes */
+#define SOCINFO_PC_UNKNOWN		0
+#define SOCINFO_PCn(n)			((n) + 1)
+#define SOCINFO_PC_RESERVE		(BIT(31) - 1)
+
 #endif