From: Atish Patra <atish.patra@wdc.com>
To: linux-kernel@vger.kernel.org
Cc: Atish Patra <atish.patra@wdc.com>,
Anup Patel <anup.patel@wdc.com>,
David Abdurachmanov <david.abdurachmanov@sifive.com>,
devicetree@vger.kernel.org,
Greentime Hu <greentime.hu@sifive.com>,
Guo Ren <guoren@linux.alibaba.com>,
Heinrich Schuchardt <xypron.glpk@gmx.de>,
Jonathan Corbet <corbet@lwn.net>,
linux-doc@vger.kernel.org, linux-perf-users@vger.kernel.org,
linux-riscv@lists.infradead.org,
Nick Kossifidis <mick@ics.forth.gr>,
Palmer Dabbelt <palmer@dabbelt.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Rob Herring <robh+dt@kernel.org>,
Vincent Chen <vincent.chen@sifive.com>
Subject: [v4 05/11] RISC-V: Add RISC-V SBI PMU extension definitions
Date: Mon, 25 Oct 2021 12:53:44 -0700 [thread overview]
Message-ID: <20211025195350.242914-6-atish.patra@wdc.com> (raw)
In-Reply-To: <20211025195350.242914-1-atish.patra@wdc.com>
This patch adds all the definitions defined by the SBI PMU extension.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
---
arch/riscv/include/asm/sbi.h | 97 ++++++++++++++++++++++++++++++++++++
1 file changed, 97 insertions(+)
diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h
index 0d42693cb65e..7a14ca06ba8f 100644
--- a/arch/riscv/include/asm/sbi.h
+++ b/arch/riscv/include/asm/sbi.h
@@ -27,6 +27,7 @@ enum sbi_ext_id {
SBI_EXT_IPI = 0x735049,
SBI_EXT_RFENCE = 0x52464E43,
SBI_EXT_HSM = 0x48534D,
+ SBI_EXT_PMU = 0x504D55,
};
enum sbi_ext_base_fid {
@@ -70,6 +71,99 @@ enum sbi_hsm_hart_status {
SBI_HSM_HART_STATUS_STOP_PENDING,
};
+
+enum sbi_ext_pmu_fid {
+ SBI_EXT_PMU_NUM_COUNTERS = 0,
+ SBI_EXT_PMU_COUNTER_GET_INFO,
+ SBI_EXT_PMU_COUNTER_CFG_MATCH,
+ SBI_EXT_PMU_COUNTER_START,
+ SBI_EXT_PMU_COUNTER_STOP,
+ SBI_EXT_PMU_COUNTER_FW_READ,
+};
+
+#define RISCV_PMU_RAW_EVENT_MASK GENMASK_ULL(55, 0)
+#define RISCV_PMU_RAW_EVENT_IDX 0x20000
+
+/** General pmu event codes specified in SBI PMU extension */
+enum sbi_pmu_hw_generic_events_t {
+ SBI_PMU_HW_NO_EVENT = 0,
+ SBI_PMU_HW_CPU_CYCLES = 1,
+ SBI_PMU_HW_INSTRUCTIONS = 2,
+ SBI_PMU_HW_CACHE_REFERENCES = 3,
+ SBI_PMU_HW_CACHE_MISSES = 4,
+ SBI_PMU_HW_BRANCH_INSTRUCTIONS = 5,
+ SBI_PMU_HW_BRANCH_MISSES = 6,
+ SBI_PMU_HW_BUS_CYCLES = 7,
+ SBI_PMU_HW_STALLED_CYCLES_FRONTEND = 8,
+ SBI_PMU_HW_STALLED_CYCLES_BACKEND = 9,
+ SBI_PMU_HW_REF_CPU_CYCLES = 10,
+
+ SBI_PMU_HW_GENERAL_MAX,
+};
+
+/**
+ * Special "firmware" events provided by the firmware, even if the hardware
+ * does not support performance events. These events are encoded as a raw
+ * event type in Linux kernel perf framework.
+ */
+enum sbi_pmu_fw_generic_events_t {
+ SBI_PMU_FW_MISALIGNED_LOAD = 0,
+ SBI_PMU_FW_MISALIGNED_STORE = 1,
+ SBI_PMU_FW_ACCESS_LOAD = 2,
+ SBI_PMU_FW_ACCESS_STORE = 3,
+ SBI_PMU_FW_ILLEGAL_INSN = 4,
+ SBI_PMU_FW_SET_TIMER = 5,
+ SBI_PMU_FW_IPI_SENT = 6,
+ SBI_PMU_FW_IPI_RECVD = 7,
+ SBI_PMU_FW_FENCE_I_SENT = 8,
+ SBI_PMU_FW_FENCE_I_RECVD = 9,
+ SBI_PMU_FW_SFENCE_VMA_SENT = 10,
+ SBI_PMU_FW_SFENCE_VMA_RCVD = 11,
+ SBI_PMU_FW_SFENCE_VMA_ASID_SENT = 12,
+ SBI_PMU_FW_SFENCE_VMA_ASID_RCVD = 13,
+
+ SBI_PMU_FW_HFENCE_GVMA_SENT = 14,
+ SBI_PMU_FW_HFENCE_GVMA_RCVD = 15,
+ SBI_PMU_FW_HFENCE_GVMA_VMID_SENT = 16,
+ SBI_PMU_FW_HFENCE_GVMA_VMID_RCVD = 17,
+
+ SBI_PMU_FW_HFENCE_VVMA_SENT = 18,
+ SBI_PMU_FW_HFENCE_VVMA_RCVD = 19,
+ SBI_PMU_FW_HFENCE_VVMA_ASID_SENT = 20,
+ SBI_PMU_FW_HFENCE_VVMA_ASID_RCVD = 21,
+ SBI_PMU_FW_MAX,
+};
+
+/* SBI PMU event types */
+enum sbi_pmu_event_type {
+ SBI_PMU_EVENT_TYPE_HW = 0x0,
+ SBI_PMU_EVENT_TYPE_CACHE = 0x1,
+ SBI_PMU_EVENT_TYPE_RAW = 0x2,
+ SBI_PMU_EVENT_TYPE_FW = 0xf,
+};
+
+/* SBI PMU event types */
+enum sbi_pmu_ctr_type {
+ SBI_PMU_CTR_TYPE_HW = 0x0,
+ SBI_PMU_CTR_TYPE_FW,
+};
+
+/* 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_MINH (1 << 3)
+#define SBI_PMU_CFG_FLAG_SET_SINH (1 << 4)
+#define SBI_PMU_CFG_FLAG_SET_UINH (1 << 5)
+#define SBI_PMU_CFG_FLAG_SET_VSINH (1 << 6)
+#define SBI_PMU_CFG_FLAG_SET_VUINH (1 << 7)
+
+/* Flags defined for counter start function */
+#define SBI_PMU_START_FLAG_SET_INIT_VALUE (1 << 0)
+
+/* Flags defined for counter stop function */
+#define SBI_PMU_STOP_FLAG_RESET (1 << 0)
+
#define SBI_SPEC_VERSION_DEFAULT 0x1
#define SBI_SPEC_VERSION_MAJOR_SHIFT 24
#define SBI_SPEC_VERSION_MAJOR_MASK 0x7f
@@ -82,6 +176,9 @@ enum sbi_hsm_hart_status {
#define SBI_ERR_INVALID_PARAM -3
#define SBI_ERR_DENIED -4
#define SBI_ERR_INVALID_ADDRESS -5
+#define SBI_ERR_ALREADY_AVAILABLE -6
+#define SBI_ERR_ALREADY_STARTED -7
+#define SBI_ERR_ALREADY_STOPPED -8
extern unsigned long sbi_spec_version;
struct sbiret {
--
2.31.1
next prev parent reply other threads:[~2021-10-25 19:59 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-25 19:53 [v4 00/11] Improve RISC-V Perf support using SBI PMU and sscofpmf extension Atish Patra
2021-10-25 19:53 ` [v4 01/11] RISC-V: Remove the current perf implementation Atish Patra
2021-10-25 19:53 ` [v4 02/11] RISC-V: Add CSR encodings for all HPMCOUNTERS Atish Patra
2021-10-25 19:53 ` [v4 03/11] RISC-V: Add a perf core library for pmu drivers Atish Patra
2021-10-25 19:53 ` [v4 04/11] RISC-V: Add a simple platform driver for RISC-V legacy perf Atish Patra
2021-10-25 19:53 ` Atish Patra [this message]
2021-12-15 8:02 ` [v4 05/11] RISC-V: Add RISC-V SBI PMU extension definitions Nikita Shubin
2021-12-15 16:03 ` Atish Patra
2021-10-25 19:53 ` [v4 06/11] dt-binding: pmu: Add RISC-V PMU DT bindings Atish Patra
2021-10-26 18:03 ` Rob Herring
2021-10-26 18:57 ` Rob Herring
2021-10-28 20:17 ` Jessica Clarke
2021-10-25 19:53 ` [v4 07/11] RISC-V: Add perf platform driver based on SBI PMU extension Atish Patra
2021-10-25 19:53 ` [v4 08/11] RISC-V: Add interrupt support for perf Atish Patra
2021-10-25 19:53 ` [v4 09/11] Documentation: riscv: Remove the old documentation Atish Patra
2021-10-25 19:53 ` [v4 10/11] riscv: dts: fu740: Add pmu node Atish Patra
2021-10-28 20:48 ` Jessica Clarke
2021-10-28 23:37 ` Atish Patra
2021-10-29 0:07 ` Jessica Clarke
2021-10-29 6:05 ` Atish Patra
2021-10-29 12:25 ` Jessica Clarke
2021-10-25 19:53 ` [v4 11/11] MAINTAINERS: Add entry for RISC-V PMU drivers Atish Patra
2021-12-14 1:51 ` [v4 00/11] Improve RISC-V Perf support using SBI PMU and sscofpmf extension Palmer Dabbelt
2021-12-14 3:16 ` Atish Patra
2021-12-14 18:09 ` Will Deacon
2021-12-14 9:14 ` Nikita Shubin
2021-12-14 18:29 ` Atish Patra
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