diff options
| author | Marc Zyngier <marc.zyngier@arm.com> | 2023-03-17 15:50:21 -0400 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2023-03-27 14:01:18 +0100 |
| commit | df29ddf4f04b00cf60669686dc7f534c3ed7c433 (patch) | |
| tree | ce097f499cefb922b04ab3c115894b81b8b9916b /include/linux/perf | |
| parent | 7755cec63adeecea3cbbf4032047812c37cf7cc3 (diff) | |
arm64: perf: Abstract system register accesses away
As we want to enable 32bit support, we need to distanciate the
PMUv3 driver from the AArch64 system register names.
This patch moves all system register accesses to an architecture
specific include file, allowing the 32bit counterpart to be
slotted in at a later time.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Co-developed-by: Zaid Al-Bassam <zalbassam@google.com>
Signed-off-by: Zaid Al-Bassam <zalbassam@google.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230317195027.3746949-3-zalbassam@google.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'include/linux/perf')
| -rw-r--r-- | include/linux/perf/arm_pmuv3.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/include/linux/perf/arm_pmuv3.h b/include/linux/perf/arm_pmuv3.h index 53173abfc022..e3899bd77f5c 100644 --- a/include/linux/perf/arm_pmuv3.h +++ b/include/linux/perf/arm_pmuv3.h @@ -255,4 +255,49 @@ #define ARMV8_PMU_BUS_WIDTH_SHIFT 16 #define ARMV8_PMU_BUS_WIDTH_MASK 0xf +/* + * This code is really good + */ + +#define PMEVN_CASE(n, case_macro) \ + case n: case_macro(n); break + +#define PMEVN_SWITCH(x, case_macro) \ + do { \ + switch (x) { \ + PMEVN_CASE(0, case_macro); \ + PMEVN_CASE(1, case_macro); \ + PMEVN_CASE(2, case_macro); \ + PMEVN_CASE(3, case_macro); \ + PMEVN_CASE(4, case_macro); \ + PMEVN_CASE(5, case_macro); \ + PMEVN_CASE(6, case_macro); \ + PMEVN_CASE(7, case_macro); \ + PMEVN_CASE(8, case_macro); \ + PMEVN_CASE(9, case_macro); \ + PMEVN_CASE(10, case_macro); \ + PMEVN_CASE(11, case_macro); \ + PMEVN_CASE(12, case_macro); \ + PMEVN_CASE(13, case_macro); \ + PMEVN_CASE(14, case_macro); \ + PMEVN_CASE(15, case_macro); \ + PMEVN_CASE(16, case_macro); \ + PMEVN_CASE(17, case_macro); \ + PMEVN_CASE(18, case_macro); \ + PMEVN_CASE(19, case_macro); \ + PMEVN_CASE(20, case_macro); \ + PMEVN_CASE(21, case_macro); \ + PMEVN_CASE(22, case_macro); \ + PMEVN_CASE(23, case_macro); \ + PMEVN_CASE(24, case_macro); \ + PMEVN_CASE(25, case_macro); \ + PMEVN_CASE(26, case_macro); \ + PMEVN_CASE(27, case_macro); \ + PMEVN_CASE(28, case_macro); \ + PMEVN_CASE(29, case_macro); \ + PMEVN_CASE(30, case_macro); \ + default: WARN(1, "Invalid PMEV* index\n"); \ + } \ + } while (0) + #endif |