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* [glibc] riscv: Get level 3 cache's information
@ 2022-11-09 14:41 Adhemerval Zanella
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From: Adhemerval Zanella @ 2022-11-09 14:41 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=38caf7a1cc92e6a546ea655701c8237ee727d0d3
commit 38caf7a1cc92e6a546ea655701c8237ee727d0d3
Author: Zong Li <zong.li@sifive.com>
Date: Wed Nov 9 11:40:59 2022 -0300
riscv: Get level 3 cache's information
RISC-V architecture extends the cache information for level 3 cache
in AUX vector in Linux v.6.1-rc1. This patch supports sysconf to get
the level 3 cache information.
Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Diff:
---
sysdeps/unix/sysv/linux/riscv/sysconf.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/sysdeps/unix/sysv/linux/riscv/sysconf.c b/sysdeps/unix/sysv/linux/riscv/sysconf.c
index b768ebf781..85b9faff71 100644
--- a/sysdeps/unix/sysv/linux/riscv/sysconf.c
+++ b/sysdeps/unix/sysv/linux/riscv/sysconf.c
@@ -90,6 +90,12 @@ __sysconf (int name)
return sysconf_get_cache_associativity (AT_L2_CACHEGEOMETRY);
case _SC_LEVEL2_CACHE_LINESIZE:
return sysconf_get_cache_linesize (AT_L2_CACHEGEOMETRY);
+ case _SC_LEVEL3_CACHE_SIZE:
+ return sysconf_get_cache_size (AT_L3_CACHESIZE);
+ case _SC_LEVEL3_CACHE_ASSOC:
+ return sysconf_get_cache_associativity (AT_L3_CACHEGEOMETRY);
+ case _SC_LEVEL3_CACHE_LINESIZE:
+ return sysconf_get_cache_linesize (AT_L3_CACHEGEOMETRY);
default:
return linux_sysconf (name);
}
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2022-11-09 14:41 [glibc] riscv: Get level 3 cache's information Adhemerval Zanella
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