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xtensa: report trax and perf counters in cpuinfo

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Add 'trax' to the list of CPU features when xtensa core is configured
with TRAX.
Add 'perf' to the list of CPU features when xtensa core is configured
with perf counters and show the number of configured perf counters.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
This commit is contained in:
Max Filippov
2023-05-21 13:50:20 -07:00
parent 338d915090
commit e6807b44e4
2 changed files with 18 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
arch/xtensa/include/asm/core.h
View File

@@ -26,6 +26,14 @@
#define XCHAL_SPANNING_WAY 0
#endif
#ifndef XCHAL_HAVE_TRAX
#define XCHAL_HAVE_TRAX 0
#endif
#ifndef XCHAL_NUM_PERF_COUNTERS
#define XCHAL_NUM_PERF_COUNTERS 0
#endif
#if XCHAL_HAVE_WINDOWED
#if defined(CONFIG_USER_ABI_DEFAULT) || defined(CONFIG_USER_ABI_CALL0_PROBE)
/* Whether windowed ABI is supported in userspace. */

12
arch/xtensa/kernel/setup.c
View File

@@ -586,6 +586,12 @@ c_show(struct seq_file *f, void *slot)
# if XCHAL_HAVE_OCD
"ocd "
# endif
#if XCHAL_HAVE_TRAX
"trax "
#endif
#if XCHAL_NUM_PERF_COUNTERS
"perf "
#endif
#endif
#if XCHAL_HAVE_DENSITY
"density "
@@ -635,11 +641,13 @@ c_show(struct seq_file *f, void *slot)
seq_printf(f,"physical aregs\t: %d\n"
"misc regs\t: %d\n"
"ibreak\t\t: %d\n"
"dbreak\t\t: %d\n",
"dbreak\t\t: %d\n"
"perf counters\t: %d\n",
XCHAL_NUM_AREGS,
XCHAL_NUM_MISC_REGS,
XCHAL_NUM_IBREAK,
XCHAL_NUM_DBREAK);
XCHAL_NUM_DBREAK,
XCHAL_NUM_PERF_COUNTERS);
/* Interrupt. */