summaryrefslogtreecommitdiffstats
path: root/dts/Bindings/perf
diff options
context:
space:
mode:
Diffstat (limited to 'dts/Bindings/perf')
-rw-r--r--dts/Bindings/perf/amlogic,g12-ddr-pmu.yaml54
-rw-r--r--dts/Bindings/perf/arm,dsu-pmu.yaml3
-rw-r--r--dts/Bindings/perf/fsl-imx-ddr.yaml6
-rw-r--r--dts/Bindings/perf/riscv,pmu.yaml160
4 files changed, 219 insertions, 4 deletions
diff --git a/dts/Bindings/perf/amlogic,g12-ddr-pmu.yaml b/dts/Bindings/perf/amlogic,g12-ddr-pmu.yaml
new file mode 100644
index 0000000000..4adab01491
--- /dev/null
+++ b/dts/Bindings/perf/amlogic,g12-ddr-pmu.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/perf/amlogic,g12-ddr-pmu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic G12 DDR performance monitor
+
+maintainers:
+ - Jiucheng Xu <jiucheng.xu@amlogic.com>
+
+description: |
+ Amlogic G12 series SoC integrate DDR bandwidth monitor.
+ A timer is inside and can generate interrupt when timeout.
+ The bandwidth is counted in the timer ISR. Different platform
+ has different subset of event format attribute.
+
+properties:
+ compatible:
+ enum:
+ - amlogic,g12a-ddr-pmu
+ - amlogic,g12b-ddr-pmu
+ - amlogic,sm1-ddr-pmu
+
+ reg:
+ items:
+ - description: DMC bandwidth register space.
+ - description: DMC PLL register space.
+
+ interrupts:
+ items:
+ - description: The IRQ of the inside timer timeout.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ pmu {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ pmu@ff638000 {
+ compatible = "amlogic,g12a-ddr-pmu";
+ reg = <0x0 0xff638000 0x0 0x100>,
+ <0x0 0xff638c00 0x0 0x100>;
+ interrupts = <GIC_SPI 52 IRQ_TYPE_EDGE_RISING>;
+ };
+ };
diff --git a/dts/Bindings/perf/arm,dsu-pmu.yaml b/dts/Bindings/perf/arm,dsu-pmu.yaml
index c87821be15..a740378ed5 100644
--- a/dts/Bindings/perf/arm,dsu-pmu.yaml
+++ b/dts/Bindings/perf/arm,dsu-pmu.yaml
@@ -32,11 +32,8 @@ properties:
- description: nCLUSTERPMUIRQ interrupt
cpus:
- $ref: /schemas/types.yaml#/definitions/phandle-array
minItems: 1
maxItems: 12
- items:
- maxItems: 1
description: List of phandles for the CPUs connected to this DSU instance.
required:
diff --git a/dts/Bindings/perf/fsl-imx-ddr.yaml b/dts/Bindings/perf/fsl-imx-ddr.yaml
index 80a9238536..6c96a4204e 100644
--- a/dts/Bindings/perf/fsl-imx-ddr.yaml
+++ b/dts/Bindings/perf/fsl-imx-ddr.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/perf/fsl-imx-ddr.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Freescale(NXP) IMX8 DDR performance monitor
+title: Freescale(NXP) IMX8/9 DDR performance monitor
maintainers:
- Frank Li <frank.li@nxp.com>
@@ -19,6 +19,7 @@ properties:
- fsl,imx8mm-ddr-pmu
- fsl,imx8mn-ddr-pmu
- fsl,imx8mp-ddr-pmu
+ - fsl,imx93-ddr-pmu
- items:
- enum:
- fsl,imx8mm-ddr-pmu
@@ -26,6 +27,9 @@ properties:
- fsl,imx8mq-ddr-pmu
- fsl,imx8mp-ddr-pmu
- const: fsl,imx8m-ddr-pmu
+ - items:
+ - const: fsl,imx8dxl-ddr-pmu
+ - const: fsl,imx8-ddr-pmu
reg:
maxItems: 1
diff --git a/dts/Bindings/perf/riscv,pmu.yaml b/dts/Bindings/perf/riscv,pmu.yaml
new file mode 100644
index 0000000000..d01c677ad3
--- /dev/null
+++ b/dts/Bindings/perf/riscv,pmu.yaml
@@ -0,0 +1,160 @@
+# SPDX-License-Identifier: BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/perf/riscv,pmu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: RISC-V SBI PMU events
+
+maintainers:
+ - Atish Patra <atishp@rivosinc.com>
+
+description: |
+ The SBI PMU extension allows supervisor software to configure, start and
+ stop any performance counter at anytime. Thus, a user can leverage all
+ capabilities of performance analysis tools, such as perf, if the SBI PMU
+ extension is enabled. The following constraints apply:
+
+ The platform must provide information about PMU event to counter mappings
+ either via device tree or another way, specific to the platform.
+ Without the event to counter mappings, the SBI PMU extension cannot be used.
+
+ Platforms should provide information about the PMU event selector values
+ that should be encoded in the expected value of MHPMEVENTx while configuring
+ MHPMCOUNTERx for that specific event. The can either be done via device tree
+ or another way, specific to the platform.
+ The exact value to be written to MHPMEVENTx is completely dependent on the
+ platform.
+
+ For information on the SBI specification see the section "Performance
+ Monitoring Unit Extension" of:
+ https://github.com/riscv-non-isa/riscv-sbi-doc/blob/master/riscv-sbi.adoc
+
+properties:
+ compatible:
+ const: riscv,pmu
+
+ riscv,event-to-mhpmevent:
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+ description:
+ Represents an ONE-to-ONE mapping between a PMU event and the event
+ selector value that the platform expects to be written to the MHPMEVENTx
+ CSR for that event.
+ The mapping is encoded in an matrix format where each element represents
+ an event.
+ This property shouldn't encode any raw hardware event.
+ items:
+ items:
+ - description: event_idx, a 20-bit wide encoding of the event type and
+ code. Refer to the SBI specification for a complete description of
+ the event types and codes.
+ - description: upper 32 bits of the event selector value for MHPMEVENTx
+ - description: lower 32 bits of the event selector value for MHPMEVENTx
+
+ riscv,event-to-mhpmcounters:
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+ description:
+ Represents a MANY-to-MANY mapping between a range of events and all the
+ MHPMCOUNTERx in a bitmap format that can be used to monitor these range
+ of events. The information is encoded in an matrix format where each
+ element represents a certain range of events and corresponding counters.
+ This property shouldn't encode any raw event.
+ items:
+ items:
+ - description: first event_idx of the range of events
+ - description: last event_idx of the range of events
+ - description: bitmap of MHPMCOUNTERx for this event
+
+ riscv,raw-event-to-mhpmcounters:
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+ description:
+ Represents an ONE-to-MANY or MANY-to-MANY mapping between the rawevent(s)
+ and all the MHPMCOUNTERx in a bitmap format that can be used to monitor
+ that raw event.
+ The encoding of the raw events are platform specific. The information is
+ encoded in a matrix format where each element represents the specific raw
+ event(s).
+ If a platform directly encodes each raw PMU event as a unique ID, the
+ value of variant must be 0xffffffff_ffffffff.
+ items:
+ items:
+ - description:
+ upper 32 invariant bits for the range of events
+ - description:
+ lower 32 invariant bits for the range of events
+ - description:
+ upper 32 bits of the variant bit mask for the range of events
+ - description:
+ lower 32 bits of the variant bit mask for the range of events
+ - description:
+ bitmap of all MHPMCOUNTERx that can monitor the range of events
+
+dependencies:
+ riscv,event-to-mhpmevent: [ "riscv,event-to-mhpmcounters" ]
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ pmu {
+ compatible = "riscv,pmu";
+ riscv,event-to-mhpmevent = <0x0000B 0x0000 0x0001>;
+ riscv,event-to-mhpmcounters = <0x00001 0x00001 0x00000001>,
+ <0x00002 0x00002 0x00000004>,
+ <0x00003 0x0000A 0x00000ff8>,
+ <0x10000 0x10033 0x000ff000>;
+ riscv,raw-event-to-mhpmcounters =
+ /* For event ID 0x0002 */
+ <0x0000 0x0002 0xffffffff 0xffffffff 0x00000f8>,
+ /* For event ID 0-4 */
+ <0x0 0x0 0xffffffff 0xfffffff0 0x00000ff0>,
+ /* For event ID 0xffffffff0000000f - 0xffffffff000000ff */
+ <0xffffffff 0x0 0xffffffff 0xffffff0f 0x00000ff0>;
+ };
+
+ - |
+ /*
+ * For HiFive Unmatched board the encodings can be found here
+ * https://sifive.cdn.prismic.io/sifive/1a82e600-1f93-4f41-b2d8-86ed8b16acba_fu740-c000-manual-v1p6.pdf
+ *
+ * This example also binds standard SBI PMU hardware IDs to U74 PMU event
+ * codes, U74 uses a bitfield for events encoding, so several U74 events
+ * can be bound to a single perf ID.
+ * See SBI PMU hardware IDs in arch/riscv/include/asm/sbi.h
+ */
+ pmu {
+ compatible = "riscv,pmu";
+ riscv,event-to-mhpmevent =
+ /* SBI_PMU_HW_CACHE_REFERENCES -> Instruction or Data cache/ITIM busy */
+ <0x00003 0x00000000 0x1801>,
+ /* SBI_PMU_HW_CACHE_MISSES -> Instruction or Data cache miss or MMIO access */
+ <0x00004 0x00000000 0x0302>,
+ /* SBI_PMU_HW_BRANCH_INSTRUCTIONS -> Conditional branch retired */
+ <0x00005 0x00000000 0x4000>,
+ /* SBI_PMU_HW_BRANCH_MISSES -> Branch or jump misprediction */
+ <0x00006 0x00000000 0x6001>,
+ /* L1D_READ_MISS -> Data cache miss or MMIO access */
+ <0x10001 0x00000000 0x0202>,
+ /* L1D_WRITE_ACCESS -> Data cache write-back */
+ <0x10002 0x00000000 0x0402>,
+ /* L1I_READ_ACCESS -> Instruction cache miss */
+ <0x10009 0x00000000 0x0102>,
+ /* LL_READ_MISS -> UTLB miss */
+ <0x10011 0x00000000 0x2002>,
+ /* DTLB_READ_MISS -> Data TLB miss */
+ <0x10019 0x00000000 0x1002>,
+ /* ITLB_READ_MISS-> Instruction TLB miss */
+ <0x10021 0x00000000 0x0802>;
+ riscv,event-to-mhpmcounters = <0x00003 0x00006 0x18>,
+ <0x10001 0x10002 0x18>,
+ <0x10009 0x10009 0x18>,
+ <0x10011 0x10011 0x18>,
+ <0x10019 0x10019 0x18>,
+ <0x10021 0x10021 0x18>;
+ riscv,raw-event-to-mhpmcounters = <0x0 0x0 0xffffffff 0xfc0000ff 0x18>,
+ <0x0 0x1 0xffffffff 0xfff800ff 0x18>,
+ <0x0 0x2 0xffffffff 0xffffe0ff 0x18>;
+ };
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-19 04:39:41 +0000