From: Pu Wen <puwen@hygon.cn>
To: tglx@linutronix.de, bp@alien8.de, thomas.lendacky@amd.com,
mingo@redhat.com, hpa@zytor.com, peterz@infradead.org,
tony.luck@intel.com, pbonzini@redhat.com, rkrcmar@redhat.com,
boris.ostrovsky@oracle.com, jgross@suse.com, rjw@rjwysocki.net,
lenb@kernel.org, viresh.kumar@linaro.org, mchehab@kernel.org,
trenn@suse.com, shuah@kernel.org, JBeulich@suse.com,
x86@kernel.org
Cc: linux-arch@vger.kernel.org, xen-devel@lists.xenproject.org,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Subject: [PATCH v2 04/17] x86/smpboot: smp init nodelay and no flush caches before sleep
Date: Mon, 23 Jul 2018 21:20:24 +0800 [thread overview]
Message-ID: <1532352037-7151-5-git-send-email-puwen@hygon.cn> (raw)
In-Reply-To: <1532352037-7151-1-git-send-email-puwen@hygon.cn>
Dhyana use no delay in smp_quirk_init_udelay(), and return in
mwait_play_dead() as AMD does.
Signed-off-by: Pu Wen <puwen@hygon.cn>
---
arch/x86/kernel/smpboot.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index db9656e..26cb2c9 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -658,6 +658,7 @@ static void __init smp_quirk_init_udelay(void)
/* if modern processor, use no delay */
if (((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) && (boot_cpu_data.x86 == 6)) ||
+ ((boot_cpu_data.x86_vendor == X86_VENDOR_HYGON) && (boot_cpu_data.x86 >= 0x18)) ||
((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) && (boot_cpu_data.x86 >= 0xF))) {
init_udelay = 0;
return;
@@ -1574,7 +1575,8 @@ static inline void mwait_play_dead(void)
void *mwait_ptr;
int i;
- if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)
+ if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD ||
+ boot_cpu_data.x86_vendor == X86_VENDOR_HYGON)
return;
if (!this_cpu_has(X86_FEATURE_MWAIT))
return;
--
2.7.4
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WARNING: multiple messages have this Message-ID (diff)
From: Pu Wen <puwen@hygon.cn>
To: tglx@linutronix.de, bp@alien8.de, thomas.lendacky@amd.com,
mingo@redhat.com, hpa@zytor.com, peterz@infradead.org,
tony.luck@intel.com, pbonzini@redhat.com, rkrcmar@redhat.com,
boris.ostrovsky@oracle.com, jgross@suse.com, rjw@rjwysocki.net,
lenb@kernel.org, viresh.kumar@linaro.org, mchehab@kernel.org,
trenn@suse.com, shuah@kernel.org, JBeulich@suse.com,
x86@kernel.org
Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
kvm@vger.kernel.org, xen-devel@lists.xenproject.org
Subject: [PATCH v2 04/17] x86/smpboot: smp init nodelay and no flush caches before sleep
Date: Mon, 23 Jul 2018 21:20:24 +0800 [thread overview]
Message-ID: <1532352037-7151-5-git-send-email-puwen@hygon.cn> (raw)
Message-ID: <20180723132024.gBxXUjvD3cQUG3XZrNUYF5olEL5fEC3sEpKTKI5RmsA@z> (raw)
In-Reply-To: <1532352037-7151-1-git-send-email-puwen@hygon.cn>
Dhyana use no delay in smp_quirk_init_udelay(), and return in
mwait_play_dead() as AMD does.
Signed-off-by: Pu Wen <puwen@hygon.cn>
---
arch/x86/kernel/smpboot.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index db9656e..26cb2c9 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -658,6 +658,7 @@ static void __init smp_quirk_init_udelay(void)
/* if modern processor, use no delay */
if (((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) && (boot_cpu_data.x86 == 6)) ||
+ ((boot_cpu_data.x86_vendor == X86_VENDOR_HYGON) && (boot_cpu_data.x86 >= 0x18)) ||
((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) && (boot_cpu_data.x86 >= 0xF))) {
init_udelay = 0;
return;
@@ -1574,7 +1575,8 @@ static inline void mwait_play_dead(void)
void *mwait_ptr;
int i;
- if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)
+ if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD ||
+ boot_cpu_data.x86_vendor == X86_VENDOR_HYGON)
return;
if (!this_cpu_has(X86_FEATURE_MWAIT))
return;
--
2.7.4
next prev parent reply other threads:[~2018-07-23 13:20 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-23 13:20 [PATCH v2 00/17] Add support for Hygon Dhyana Family 18h processor Pu Wen
2018-07-23 13:20 ` Pu Wen
2018-07-23 13:20 ` [PATCH v2 01/17] x86/cpu: create Dhyana init file and register new cpu_dev to system Pu Wen
2018-07-23 13:20 ` Pu Wen
2018-07-24 18:14 ` Paolo Bonzini
2018-07-24 18:14 ` Paolo Bonzini
[not found] ` <201807290021145963620@hygon.cn>
2018-07-28 23:42 ` Paolo Bonzini
2018-07-28 23:42 ` Paolo Bonzini
2018-07-30 16:42 ` Pu Wen
2018-07-30 16:42 ` Pu Wen
2018-07-23 13:20 ` [PATCH v2 02/17] x86/cache: get Dhyana cache size/leaves and setup cache cpumap Pu Wen
2018-07-23 13:20 ` Pu Wen
2018-07-23 13:20 ` [PATCH v2 03/17] x86/mtrr: get MTRR number and support TOP_MEM2 Pu Wen
2018-07-23 13:20 ` Pu Wen
2018-07-23 13:20 ` Pu Wen [this message]
2018-07-23 13:20 ` [PATCH v2 04/17] x86/smpboot: smp init nodelay and no flush caches before sleep Pu Wen
2018-07-23 13:20 ` [PATCH v2 05/17] x86/perfctr: return perf counter and event selection bit offset Pu Wen
2018-07-23 13:20 ` Pu Wen
2018-07-23 13:20 ` [PATCH v2 06/17] x86/nops: init ideal_nops for Hygon Pu Wen
2018-07-23 13:20 ` Pu Wen
2018-07-23 13:20 ` [PATCH v2 07/17] x86/pci: add Hygon PCI vendor and northbridge support Pu Wen
2018-07-23 13:20 ` Pu Wen
2018-07-23 13:20 ` [PATCH v2 08/17] x86/apic: add modern APIC support for Hygon Pu Wen
2018-07-23 13:20 ` Pu Wen
2018-07-23 13:20 ` [PATCH v2 09/17] x86/bugs: add lfence mitigation to spectre v2 and no meltdown " Pu Wen
2018-07-23 13:20 ` Pu Wen
2018-07-23 13:20 ` [PATCH v2 10/17] x86/events: enable Hygon support to PMU infrastructure Pu Wen
2018-07-23 13:20 ` Pu Wen
2018-07-23 13:20 ` [PATCH v2 11/17] x86/mce: enable Hygon support to MCE infrastructure Pu Wen
2018-07-23 13:20 ` Pu Wen
2018-07-23 13:20 ` [PATCH v2 12/17] x86/kvm: enable Hygon support to KVM infrastructure Pu Wen
2018-07-23 13:20 ` Pu Wen
2018-07-23 13:20 ` [PATCH v2 13/17] x86/xen: enable Hygon support to Xen Pu Wen
2018-07-23 13:20 ` Pu Wen
2018-07-23 13:20 ` [PATCH v2 14/17] driver/acpi: enable Hygon support to ACPI driver Pu Wen
2018-07-23 13:20 ` Pu Wen
2018-07-23 13:20 ` [PATCH v2 15/17] driver/cpufreq: enable Hygon support to cpufreq driver Pu Wen
2018-07-23 13:20 ` Pu Wen
2018-07-23 13:20 ` [PATCH v2 16/17] driver/edac: enable Hygon support to AMD64 EDAC driver Pu Wen
2018-07-23 13:20 ` Pu Wen
2018-07-28 23:42 ` Paolo Bonzini
2018-07-28 23:42 ` Paolo Bonzini
2018-07-30 16:43 ` Pu Wen
2018-07-30 16:43 ` Pu Wen
2018-07-31 7:38 ` Paolo Bonzini
2018-07-31 7:38 ` Paolo Bonzini
2018-07-31 10:46 ` Pu Wen
2018-07-31 10:46 ` Pu Wen
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