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5ebe2f4bf0
Similar to StarFive's Dubhe-80, Dubhe-90 supports raw event id 0x00 -
0x22. Reuse Dubhe-80 firmware and common json file. The raw events are
enabled through PMU node of DT binding. Besides raw event, add standard
RISC-V firmware events to support monitoring of firmware event.
Example of PMU DT node:
pmu {
compatible = "riscv,pmu";
riscv,raw-event-to-mhpmcounters =
/* Event ID 1-31 */
<0x00 0x00 0xFFFFFFFF 0xFFFFFFE0 0x00007FF8>,
/* Event ID 32-33 */
<0x00 0x20 0xFFFFFFFF 0xFFFFFFFE 0x00007FF8>,
/* Event ID 34 */
<0x00 0x22 0xFFFFFFFF 0xFFFFFF22 0x00007FF8>;
};
'perf stat' output:
[root@user]# perf stat -a \
-e access_mmu_stlb \
-e miss_mmu_stlb \
-e access_mmu_pte_c \
-e rob_flush \
-e btb_prediction_miss \
-e itlb_miss \
-e sync_del_fetch_g \
-e icache_miss \
-e bpu_br_retire \
-e bpu_br_miss \
-e ret_ins_retire \
-e ret_ins_miss \
-- openssl speed rsa2048
Doing 2048 bits private rsa's for 10s: 39 2048 bits private RSA's in
10.03s
Doing 2048 bits public rsa's for 10s: 1469 2048 bits public RSA's in
9.47s
version: 3.0.10
built on: Tue Aug 1 13:47:24 2023 UTC
options: bn(64,64)
CPUINFO: N/A
sign verify sign/s verify/s
rsa 2048 bits 0.257179s 0.006447s 3.9 155.1
Performance counter stats for 'system wide':
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.