Merging upstream version 6.10.3.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 29 insertions, 13 deletions

diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h
index 0fab508a65..1079e214fe 100644
--- a/arch/riscv/include/asm/sbi.h
+++ b/arch/riscv/include/asm/sbi.h
@@ -131,6 +131,8 @@ enum sbi_ext_pmu_fid {
 	SBI_EXT_PMU_COUNTER_START,
 	SBI_EXT_PMU_COUNTER_STOP,
 	SBI_EXT_PMU_COUNTER_FW_READ,
+	SBI_EXT_PMU_COUNTER_FW_READ_HI,
+	SBI_EXT_PMU_SNAPSHOT_SET_SHMEM,
 };
 
 union sbi_pmu_ctr_info {
@@ -147,6 +149,13 @@ union sbi_pmu_ctr_info {
 	};
 };
 
+/* Data structure to contain the pmu snapshot data */
+struct riscv_pmu_snapshot_data {
+	u64 ctr_overflow_mask;
+	u64 ctr_values[64];
+	u64 reserved[447];
+};
+
 #define RISCV_PMU_RAW_EVENT_MASK GENMASK_ULL(47, 0)
 #define RISCV_PMU_RAW_EVENT_IDX 0x20000
 
@@ -232,20 +241,22 @@ enum sbi_pmu_ctr_type {
 #define SBI_PMU_EVENT_IDX_INVALID 0xFFFFFFFF
 
 /* Flags defined for config matching function */
-#define SBI_PMU_CFG_FLAG_SKIP_MATCH	(1 << 0)
-#define SBI_PMU_CFG_FLAG_CLEAR_VALUE	(1 << 1)
-#define SBI_PMU_CFG_FLAG_AUTO_START	(1 << 2)
-#define SBI_PMU_CFG_FLAG_SET_VUINH	(1 << 3)
-#define SBI_PMU_CFG_FLAG_SET_VSINH	(1 << 4)
-#define SBI_PMU_CFG_FLAG_SET_UINH	(1 << 5)
-#define SBI_PMU_CFG_FLAG_SET_SINH	(1 << 6)
-#define SBI_PMU_CFG_FLAG_SET_MINH	(1 << 7)
+#define SBI_PMU_CFG_FLAG_SKIP_MATCH	BIT(0)
+#define SBI_PMU_CFG_FLAG_CLEAR_VALUE	BIT(1)
+#define SBI_PMU_CFG_FLAG_AUTO_START	BIT(2)
+#define SBI_PMU_CFG_FLAG_SET_VUINH	BIT(3)
+#define SBI_PMU_CFG_FLAG_SET_VSINH	BIT(4)
+#define SBI_PMU_CFG_FLAG_SET_UINH	BIT(5)
+#define SBI_PMU_CFG_FLAG_SET_SINH	BIT(6)
+#define SBI_PMU_CFG_FLAG_SET_MINH	BIT(7)
 
 /* Flags defined for counter start function */
-#define SBI_PMU_START_FLAG_SET_INIT_VALUE (1 << 0)
+#define SBI_PMU_START_FLAG_SET_INIT_VALUE BIT(0)
+#define SBI_PMU_START_FLAG_INIT_SNAPSHOT BIT(1)
 
 /* Flags defined for counter stop function */
-#define SBI_PMU_STOP_FLAG_RESET (1 << 0)
+#define SBI_PMU_STOP_FLAG_RESET BIT(0)
+#define SBI_PMU_STOP_FLAG_TAKE_SNAPSHOT BIT(1)
 
 enum sbi_ext_dbcn_fid {
 	SBI_EXT_DBCN_CONSOLE_WRITE = 0,
@@ -266,7 +277,7 @@ struct sbi_sta_struct {
 	u8 pad[47];
 } __packed;
 
-#define SBI_STA_SHMEM_DISABLE		-1
+#define SBI_SHMEM_DISABLE		-1
 
 /* SBI spec version fields */
 #define SBI_SPEC_VERSION_DEFAULT	0x1
@@ -284,6 +295,7 @@ struct sbi_sta_struct {
 #define SBI_ERR_ALREADY_AVAILABLE -6
 #define SBI_ERR_ALREADY_STARTED -7
 #define SBI_ERR_ALREADY_STOPPED -8
+#define SBI_ERR_NO_SHMEM	-9
 
 extern unsigned long sbi_spec_version;
 struct sbiret {
@@ -355,8 +367,8 @@ static inline unsigned long sbi_minor_version(void)
 static inline unsigned long sbi_mk_version(unsigned long major,
 					    unsigned long minor)
 {
-	return ((major & SBI_SPEC_VERSION_MAJOR_MASK) <<
-		SBI_SPEC_VERSION_MAJOR_SHIFT) | minor;
+	return ((major & SBI_SPEC_VERSION_MAJOR_MASK) << SBI_SPEC_VERSION_MAJOR_SHIFT)
+		| (minor & SBI_SPEC_VERSION_MINOR_MASK);
 }
 
 int sbi_err_map_linux_errno(int err);
@@ -377,8 +389,12 @@ unsigned long riscv_cached_marchid(unsigned int cpu_id);
 unsigned long riscv_cached_mimpid(unsigned int cpu_id);
 
 #if IS_ENABLED(CONFIG_SMP) && IS_ENABLED(CONFIG_RISCV_SBI)
+DECLARE_STATIC_KEY_FALSE(riscv_sbi_for_rfence);
+#define riscv_use_sbi_for_rfence() \
+	static_branch_unlikely(&riscv_sbi_for_rfence)
 void sbi_ipi_init(void);
 #else
+static inline bool riscv_use_sbi_for_rfence(void) { return false; }
 static inline void sbi_ipi_init(void) { }
 #endif