From: Pu Wen <puwen@hygon.cn>
To: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
x86@kernel.org, thomas.lendacky@amd.com, bp@alien8.de,
pbonzini@redhat.com
Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
Pu Wen <puwen@hygon.cn>
Subject: [PATCH v4 04/16] x86/smpboot: smp init nodelay and no flush caches before sleep
Date: Mon, 20 Aug 2018 00:09:47 +0800 [thread overview]
Message-ID: <e9cbe0ac3842087eaa9839f39dd7036e1bf38624.1534599097.git.puwen@hygon.cn> (raw)
In-Reply-To: <cover.1534599097.git.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 f02ecaf..5369d7f 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -676,6 +676,7 @@ 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;
@@ -1592,7 +1593,8 @@ 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:[~2018-08-19 16:10 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-19 16:07 [PATCH v4 00/16] Add support for Hygon Dhyana Family 18h processor Pu Wen
2018-08-19 16:08 ` [PATCH v4 01/16] x86/cpu: create Dhyana init file and register new cpu_dev to system Pu Wen
2018-08-19 16:09 ` [PATCH v4 02/16] x86/cache: get cache size/leaves and setup cache cpumap for Dhyana Pu Wen
2018-08-19 16:09 ` [PATCH v4 03/16] x86/mtrr: get MTRR number and support TOP_MEM2 Pu Wen
2018-08-19 16:09 ` Pu Wen [this message]
2018-08-19 16:10 ` [PATCH v4 05/16] x86/pmu: enable Hygon support to PMU infrastructure Pu Wen
2018-08-19 16:10 ` [PATCH v4 06/16] x86/nops: init ideal_nops for Hygon Pu Wen
2018-08-19 16:10 ` [PATCH v4 07/16] x86/pci: add Hygon PCI vendor and northbridge support Pu Wen
2018-08-19 16:11 ` [PATCH v4 08/16] x86/apic: add modern APIC support for Hygon Pu Wen
2018-08-19 16:12 ` [PATCH v4 09/16] x86/bugs: add lfence mitigation to spectre v2 and no meltdown " Pu Wen
2018-08-19 16:12 ` [PATCH v4 10/16] x86/mce: enable Hygon support to MCE infrastructure Pu Wen
2018-08-19 16:13 ` [PATCH v4 11/16] x86/kvm: enable Hygon support to KVM infrastructure Pu Wen
2018-08-19 16:13 ` [PATCH v4 12/16] x86/xen: enable Hygon support to Xen Pu Wen
2018-08-21 1:43 ` [Xen-devel] " Boris Ostrovsky
2018-08-19 16:14 ` [PATCH v4 13/16] driver/acpi: enable Hygon support to ACPI driver Pu Wen
2018-08-19 16:14 ` [PATCH v4 14/16] driver/cpufreq: enable Hygon support to cpufreq driver Pu Wen
2018-08-19 16:14 ` [PATCH v4 15/16] driver/edac: enable Hygon support to AMD64 EDAC driver Pu Wen
2018-08-21 8:13 ` Borislav Petkov
2018-08-21 11:04 ` Pu Wen
2018-08-21 11:20 ` Borislav Petkov
2018-08-21 11:26 ` Paolo Bonzini
2018-08-21 13:04 ` Borislav Petkov
2018-08-21 18:07 ` Pavel Machek
2018-08-22 13:18 ` Pu Wen
2018-08-22 13:07 ` Pu Wen
2018-08-23 8:27 ` Borislav Petkov
2018-08-19 16:15 ` [PATCH v4 16/16] tools/cpupower: enable Hygon support to cpupower tool Pu Wen
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