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authorDavid Wang <davidwang@zhaoxin.com>2018-05-03 10:32:46 +0800
committerThomas Gleixner <tglx@linutronix.de>2018-05-13 16:14:24 +0200
commita2aa578fec8c29436bce5e6c15e1e31729d539a3 (patch)
treec81c1a8e4b4fad8bdf23ff42bebf8521ec88d0fb /arch/x86/kernel/cpu/centaur.c
parent807e9bc8e2fe6b4907f9f77fd073f7ef5073af29 (diff)
x86/Centaur: Report correct CPU/cache topology
Centaur CPUs enumerate the cache topology in the same way as Intel CPUs, but the function is unused so for. The Centaur init code also misses to initialize x86_info::max_cores, so the CPU topology can't be described correctly. Initialize x86_info::max_cores and invoke init_cacheinfo() to make CPU and cache topology information available and correct. Signed-off-by: David Wang <davidwang@zhaoxin.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: lukelin@viacpu.com Cc: qiyuanwang@zhaoxin.com Cc: gregkh@linuxfoundation.org Cc: brucechang@via-alliance.com Cc: timguo@zhaoxin.com Cc: cooperyan@zhaoxin.com Cc: hpa@zytor.com Cc: benjaminpan@viatech.com Link: https://lkml.kernel.org/r/1525314766-18910-4-git-send-email-davidwang@zhaoxin.com
Diffstat (limited to 'arch/x86/kernel/cpu/centaur.c')
-rw-r--r--arch/x86/kernel/cpu/centaur.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/centaur.c b/arch/x86/kernel/cpu/centaur.c
index 80d5110481ec..c265494234e6 100644
--- a/arch/x86/kernel/cpu/centaur.c
+++ b/arch/x86/kernel/cpu/centaur.c
@@ -160,6 +160,11 @@ static void init_centaur(struct cpuinfo_x86 *c)
clear_cpu_cap(c, 0*32+31);
#endif
early_init_centaur(c);
+ init_intel_cacheinfo(c);
+ c->x86_max_cores = detect_num_cpu_cores(c);
+#ifdef CONFIG_X86_32
+ detect_ht(c);
+#endif
if (c->cpuid_level > 9) {
unsigned int eax = cpuid_eax(10);