March 2021 - Cloud Kernel - lists.openanolis.cn

[patch v1 1/3] x86/mce: Add Zhaoxin MCE support

by LeoLiu-oc

commit 6e898d2bf67a82df0aa0c955adc9278faba9a635 upstream. All newer Zhaoxin CPUs are compatible with Intel's Machine-Check Architecture, so add support for them. [ bp: Reflow comment in vendor_disable_error_reporting() and massage commit message. ] Signed-off-by: Tony W Wang-oc <TonyWWang-oc(a)zhaoxin.com> Signed-off-by: Borislav Petkov <bp(a)suse.de> Cc: CooperYan(a)zhaoxin.com Cc: DavidWang(a)zhaoxin.com Cc: HerryYang(a)zhaoxin.com Cc: "H. Peter Anvin" <hpa(a)zytor.com> Cc: Ingo Molnar <mingo(a)redhat.com> Cc: linux-edac <linux-edac(a)vger.kernel.org> Cc: QiyuanWang(a)zhaoxin.com Cc: Thomas Gleixner <tglx(a)linutronix.de> Cc: Tony Luck <tony.luck(a)intel.com> Cc: x86-ml <x86(a)kernel.org> Link: https://lkml.kernel.org/r/1568787573-1297-2-git-send-email-TonyWWang-oc@zha… [ LeoLiu-oc: Add support for more Zhaoxin CPUs and adapt to the current MCE directory ] Signed-off-by: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> --- arch/x86/kernel/cpu/mcheck/mce.c | 48 +++++++++++++++++++++++--------- 1 file changed, 35 insertions(+), 13 deletions(-) diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 7be08b867d27..24e7f3fd0886 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -481,8 +481,10 @@ int mce_usable_address(struct mce *m) if (!(m->status & MCI_STATUS_ADDRV)) return 0; - /* Checks after this one are Intel-specific: */ - if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL) + /* Checks after this one are Intel/Zhaoxin-specific: */ + if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL && + boot_cpu_data.x86_vendor != X86_VENDOR_ZHAOXIN && + boot_cpu_data.x86_vendor != X86_VENDOR_CENTAUR) return 1; if (!(m->status & MCI_STATUS_MISCV)) @@ -500,10 +502,14 @@ EXPORT_SYMBOL_GPL(mce_usable_address); bool mce_is_memory_error(struct mce *m) { - if (m->cpuvendor == X86_VENDOR_AMD || - m->cpuvendor == X86_VENDOR_HYGON) { + switch (m->cpuvendor) { + case X86_VENDOR_AMD: + case X86_VENDOR_HYGON: return amd_mce_is_memory_error(m); - } else if (m->cpuvendor == X86_VENDOR_INTEL) { + + case X86_VENDOR_INTEL: + case X86_VENDOR_ZHAOXIN: + case X86_VENDOR_CENTAUR: /* * Intel SDM Volume 3B - 15.9.2 Compound Error Codes * @@ -520,9 +526,10 @@ bool mce_is_memory_error(struct mce *m) return (m->status & 0xef80) == BIT(7) || (m->status & 0xef00) == BIT(8) || (m->status & 0xeffc) == 0xc; - } - return false; + default: + return false; + } } EXPORT_SYMBOL_GPL(mce_is_memory_error); @@ -1675,6 +1682,19 @@ static int __mcheck_cpu_apply_quirks(struct cpuinfo_x86 *c) if (c->x86 == 6 && c->x86_model == 45) quirk_no_way_out = quirk_sandybridge_ifu; } + + if (c->x86_vendor == X86_VENDOR_ZHAOXIN || + c->x86_vendor == X86_VENDOR_CENTAUR) { + /* + * All newer Zhaoxin CPUs support MCE broadcasting. Enable + * synchronization with a one second timeout. + */ + if (c->x86 > 6 || (c->x86_model == 0x19 || c->x86_model == 0x1f)) { + if (cfg->monarch_timeout < 0) + cfg->monarch_timeout = USEC_PER_SEC; + } + } + if (cfg->monarch_timeout < 0) cfg->monarch_timeout = 0; if (cfg->bootlog != 0) @@ -1990,15 +2010,17 @@ static void mce_disable_error_reporting(void) static void vendor_disable_error_reporting(void) { /* - * Don't clear on Intel or AMD or Hygon CPUs. Some of these MSRs - * are socket-wide. - * Disabling them for just a single offlined CPU is bad, since it will - * inhibit reporting for all shared resources on the socket like the - * last level cache (LLC), the integrated memory controller (iMC), etc. + * Don't clear on Intel or AMD or Hygon or Zhaoxin CPUs. Some of these + * MSRs are socket-wide. Disabling them for just a single offlined CPU + * is bad, since it will inhibit reporting for all shared resources on + * the socket like the last level cache (LLC), the integrated memory + * controller (iMC), etc. */ if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL || boot_cpu_data.x86_vendor == X86_VENDOR_HYGON || - boot_cpu_data.x86_vendor == X86_VENDOR_AMD) + boot_cpu_data.x86_vendor == X86_VENDOR_AMD || + boot_cpu_data.x86_vendor == X86_VENDOR_ZHAOXIN || + boot_cpu_data.x86_vendor == X86_VENDOR_CENTAUR) return; mce_disable_error_reporting(); -- 2.20.1

3 years, 9 months

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[patch v1 0/3] x86/mce: Add supports for Zhaoxin MCA

by LeoLiu-oc

Zhaoxin newer CPUs support MCE, CMCI and LMCE that compatible with Intel's "Machine-Check Architecture". To enable the supports of Linux kernel to Zhaoxin's MCA, add specific patches for Zhaoxin's MCE, CMCI and LMCE. patches about Zhaoxin's CMCI, LMCE use 3 functions in mce/intel.c, so make these functions non-static. Some Zhaoxin's CPUs have MCA bank 8, that only has one error called SVAD (System View Address Decoder) which be controlled by IA32_MC8.CTL.0. If enabled, the prefetch on these CPUs will cause SVAD machine check exception when virtual machine startup and cause system panic. Add a quirk for these Zhaoxin CPUs MCA bank 8. LeoLiu-oc (3): x86/mce: Add Zhaoxin MCE support x86/mce: Add Zhaoxin CMCI support x86/mce: Add Zhaoxin LMCE support arch/x86/kernel/cpu/mcheck/mce-internal.h | 6 ++ arch/x86/kernel/cpu/mcheck/mce.c | 103 ++++++++++++++++------ arch/x86/kernel/cpu/mcheck/mce_intel.c | 11 ++- 3 files changed, 90 insertions(+), 30 deletions(-) -- 2.20.1

3 years, 9 months

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[patch v1 2/2] x86/acpi/cstate: Add Zhaoxin processors support for cache flush policy in C3

by LeoLiu-oc

commit f8c0e061cb83bd528ff0843e717bcebc846d4838 upstream. Same as Intel, Zhaoxin MP CPUs support C3 share cache and on all recent Zhaoxin platforms ARB_DISABLE is a nop. So set related flags correctly in the same way as Intel does. Signed-off-by: Tony W Wang-oc <TonyWWang-oc(a)zhaoxin.com> Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Cc: "hpa(a)zytor.com" <hpa(a)zytor.com> Cc: "gregkh(a)linuxfoundation.org" <gregkh(a)linuxfoundation.org> Cc: "rjw(a)rjwysocki.net" <rjw(a)rjwysocki.net> Cc: "lenb(a)kernel.org" <lenb(a)kernel.org> Cc: David Wang <DavidWang(a)zhaoxin.com> Cc: "Cooper Yan(BJ-RD)" <CooperYan(a)zhaoxin.com> Cc: "Qiyuan Wang(BJ-RD)" <QiyuanWang(a)zhaoxin.com> Cc: "Herry Yang(BJ-RD)" <HerryYang(a)zhaoxin.com> Link: https://lkml.kernel.org/r/a370503660994669991a7f7cda7c5e98@zhaoxin.com Signed-off-by: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> --- arch/x86/kernel/acpi/cstate.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c index cb6e076a6d39..c010f5bbbc51 100644 --- a/arch/x86/kernel/acpi/cstate.c +++ b/arch/x86/kernel/acpi/cstate.c @@ -63,6 +63,21 @@ void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags, c->x86_stepping >= 0x0e)) flags->bm_check = 1; } + + if (c->x86_vendor == X86_VENDOR_ZHAOXIN) { + /* + * All Zhaoxin CPUs that support C3 share cache. + * And caches should not be flushed by software while + * entering C3 type state. + */ + flags->bm_check = 1; + /* + * On all recent Zhaoxin platforms, ARB_DISABLE is a nop. + * So, set bm_control to zero to indicate that ARB_DISABLE + * is not required while entering C3 type state. + */ + flags->bm_control = 0; + } } EXPORT_SYMBOL(acpi_processor_power_init_bm_check); -- 2.20.1

3 years, 9 months

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[patch v1 1/2] x86/power: Optimize C3 entry on Centaur CPUs

by LeoLiu-oc

commit 987ddbe4870b53623d76ac64044c55a13e368113 upstream. For new Centaur CPUs the ucode will take care of the preservation of cache coherence between CPU cores in C-states regardless of how deep the C-states are. So, it is not necessary to flush the caches in software befor entering C3. This useless operation will cause performance drop for the cores which share some caches with the idling core. Signed-off-by: David Wang <davidwang(a)zhaoxin.com> Reviewed-by: Thomas Gleixner <tglx(a)linutronix.de> Acked-by: Pavel Machek <pavel(a)ucw.cz> Cc: Linus Torvalds <torvalds(a)linux-foundation.org> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: brucechang(a)via-alliance.com Cc: cooperyan(a)zhaoxin.com Cc: len.brown(a)intel.com Cc: linux-pm(a)kernel.org Cc: qiyuanwang(a)zhaoxin.com Cc: rjw(a)rjwysocki.net Cc: timguo(a)zhaoxin.com Link: http://lkml.kernel.org/r/1545900110-2757-1-git-send-email-davidwang@zhaoxin… [ Tidy up the comment. ] Signed-off-by: Ingo Molnar <mingo(a)kernel.org> Signed-off-by: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> --- arch/x86/kernel/acpi/cstate.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c index 158ad1483c43..cb6e076a6d39 100644 --- a/arch/x86/kernel/acpi/cstate.c +++ b/arch/x86/kernel/acpi/cstate.c @@ -51,6 +51,18 @@ void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags, if (c->x86_vendor == X86_VENDOR_INTEL && (c->x86 > 0xf || (c->x86 == 6 && c->x86_model >= 0x0f))) flags->bm_control = 0; + /* + * For all recent Centaur CPUs, the ucode will make sure that each + * core can keep cache coherence with each other while entering C3 + * type state. So, set bm_check to 1 to indicate that the kernel + * doesn't need to execute a cache flush operation (WBINVD) when + * entering C3 type state. + */ + if (c->x86_vendor == X86_VENDOR_CENTAUR) { + if (c->x86 > 6 || (c->x86 == 6 && c->x86_model == 0x0f && + c->x86_stepping >= 0x0e)) + flags->bm_check = 1; + } } EXPORT_SYMBOL(acpi_processor_power_init_bm_check); -- 2.20.1

3 years, 9 months

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[patch v1 0/2] Disable WBINVD operation when entering C3 or above for Zhaoxin CPUs

by LeoLiu-oc

All Zhaoxin CPUs that support C3 share cache. And caches should not be flushed by software while entering C3 type state. And On all recent Zhaoxin platforms, ARB_DISABLE is a nop. So, set bm_control to zero to indicate that ARB_DISABLE is not required while entering C3 type state. LeoLiu-oc (2): x86/power: Optimize C3 entry on Centaur CPUs x86/acpi/cstate: Add Zhaoxin processors support for cache flush policy in C3 arch/x86/kernel/acpi/cstate.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) -- 2.20.1

3 years, 9 months

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[patch v1] ACPI, x86: Add Zhaoxin processors support for NONSTOP TSC

by LeoLiu-oc

commit 773b2f30a3fc026f3ed121a8b945b0ae19b64ec5 upstreams. Zhaoxin CPUs have NONSTOP TSC feature, so enable the ACPI driver support for it. Signed-off-by: Tony W Wang-oc <TonyWWang-oc(a)zhaoxin.com> Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Cc: "hpa(a)zytor.com" <hpa(a)zytor.com> Cc: "gregkh(a)linuxfoundation.org" <gregkh(a)linuxfoundation.org> Cc: "rjw(a)rjwysocki.net" <rjw(a)rjwysocki.net> Cc: "lenb(a)kernel.org" <lenb(a)kernel.org> Cc: David Wang <DavidWang(a)zhaoxin.com> Cc: "Cooper Yan(BJ-RD)" <CooperYan(a)zhaoxin.com> Cc: "Qiyuan Wang(BJ-RD)" <QiyuanWang(a)zhaoxin.com> Cc: "Herry Yang(BJ-RD)" <HerryYang(a)zhaoxin.com> Link: https://lkml.kernel.org/r/d1cfd937dabc44518d42038b55522c53@zhaoxin.com Signed-off-by: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> --- drivers/acpi/acpi_pad.c | 1 + drivers/acpi/processor_idle.c | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c index a47676a55b84..c06306e6ac92 100644 --- a/drivers/acpi/acpi_pad.c +++ b/drivers/acpi/acpi_pad.c @@ -73,6 +73,7 @@ static void power_saving_mwait_init(void) case X86_VENDOR_HYGON: case X86_VENDOR_AMD: case X86_VENDOR_INTEL: + case X86_VENDOR_ZHAOXIN: /* * AMD Fam10h TSC will tick in all * C/P/S0/S1 states when this bit is set. diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 1e27a88b9163..f1483b23fd6d 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -209,6 +209,7 @@ static void tsc_check_state(int state) case X86_VENDOR_AMD: case X86_VENDOR_INTEL: case X86_VENDOR_CENTAUR: + case X86_VENDOR_ZHAOXIN: /* * AMD Fam10h TSC will tick in all * C/P/S0/S1 states when this bit is set. -- 2.20.1

3 years, 9 months

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[patch v1 6/6] ck: x86/cpu: Add detect extended topology for Zhaoxin CPUs

by LeoLiu-oc

Detect the extended topology information of Zhaoxin CPUs if available. The patch is scheduled to be submitted to the kernel mainline in 2021. Signed-off-by: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> --- arch/x86/kernel/cpu/centaur.c | 20 +++++++++++++++++++- arch/x86/kernel/cpu/zhaoxin.c | 7 ++++++- 2 files changed, 25 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/centaur.c b/arch/x86/kernel/cpu/centaur.c index 8735be464bc1..49b33cc78751 100644 --- a/arch/x86/kernel/cpu/centaur.c +++ b/arch/x86/kernel/cpu/centaur.c @@ -115,6 +115,21 @@ static void early_init_centaur(struct cpuinfo_x86 *c) set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC); set_cpu_cap(c, X86_FEATURE_NONSTOP_TSC); } + + if (c->cpuid_level >= 0x00000001) { + u32 eax, ebx, ecx, edx; + + cpuid(0x00000001, &eax, &ebx, &ecx, &edx); + /* + * If HTT (EDX[28]) is set EBX[16:23] contain the number of + * apicids which are reserved per package. Store the resulting + * shift value for the package management code. + */ + if (edx & (1U << 28)) + c->x86_coreid_bits = get_count_order((ebx >> 16) & 0xff); + } + if (detect_extended_topology_early(c) < 0) + detect_ht_early(c); } static void centaur_detect_vmx_virtcap(struct cpuinfo_x86 *c) @@ -158,8 +173,11 @@ static void init_centaur(struct cpuinfo_x86 *c) clear_cpu_cap(c, 0*32+31); #endif early_init_centaur(c); + detect_extended_topology(c); init_intel_cacheinfo(c); - detect_num_cpu_cores(c); + if (!cpu_has(c, X86_FEATURE_XTOPOLOGY)) + detect_num_cpu_cores(c); + #ifdef CONFIG_X86_32 detect_ht(c); #endif diff --git a/arch/x86/kernel/cpu/zhaoxin.c b/arch/x86/kernel/cpu/zhaoxin.c index 452fd0a6bc61..b6fc969b3e74 100644 --- a/arch/x86/kernel/cpu/zhaoxin.c +++ b/arch/x86/kernel/cpu/zhaoxin.c @@ -85,6 +85,8 @@ static void early_init_zhaoxin(struct cpuinfo_x86 *c) c->x86_coreid_bits = get_count_order((ebx >> 16) & 0xff); } + if (detect_extended_topology_early(c) < 0) + detect_ht_early(c); } static void zhaoxin_detect_vmx_virtcap(struct cpuinfo_x86 *c) @@ -115,8 +117,11 @@ static void zhaoxin_detect_vmx_virtcap(struct cpuinfo_x86 *c) static void init_zhaoxin(struct cpuinfo_x86 *c) { early_init_zhaoxin(c); + detect_extended_topology(c); init_intel_cacheinfo(c); - detect_num_cpu_cores(c); + if (!cpu_has(c, X86_FEATURE_XTOPOLOGY)) + detect_num_cpu_cores(c); + #ifdef CONFIG_X86_32 detect_ht(c); #endif -- 2.20.1

3 years, 9 months

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[patch v1 4/6] x86/cpu/centaur: Add Centaur family >=7 CPUs initialization support

by LeoLiu-oc

commit 33b4711df4c1b3aec7c267c60fc24abccfadd40c upstreams. Add Centaur family >=7 CPUs specific initialization support. Signed-off-by: Tony W Wang-oc <TonyWWang-oc(a)zhaoxin.com> Signed-off-by: Borislav Petkov <bp(a)suse.de> Link: https://lkml.kernel.org/r/1599562666-31351-3-git-send-email-TonyWWang-oc@zh… Signed-off-by: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> --- arch/x86/kernel/cpu/centaur.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/centaur.c b/arch/x86/kernel/cpu/centaur.c index b3be281334e4..8735be464bc1 100644 --- a/arch/x86/kernel/cpu/centaur.c +++ b/arch/x86/kernel/cpu/centaur.c @@ -71,6 +71,9 @@ static void init_c3(struct cpuinfo_x86 *c) c->x86_cache_alignment = c->x86_clflush_size * 2; set_cpu_cap(c, X86_FEATURE_REP_GOOD); } + + if (c->x86 >= 7) + set_cpu_cap(c, X86_FEATURE_REP_GOOD); } enum { @@ -101,7 +104,8 @@ static void early_init_centaur(struct cpuinfo_x86 *c) if (c->x86 == 5) set_cpu_cap(c, X86_FEATURE_CENTAUR_MCR); #endif - if (c->x86 == 6 && c->x86_model >= 0xf) + if ((c->x86 == 6 && c->x86_model >= 0xf) || + (c->x86 >= 7)) set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC); #ifdef CONFIG_X86_64 @@ -235,7 +239,7 @@ static void init_centaur(struct cpuinfo_x86 *c) sprintf(c->x86_model_id, "WinChip %s", name); } #endif - if (c->x86 == 6) + if (c->x86 == 6 || c->x86 >= 7) init_c3(c); #ifdef CONFIG_X86_64 set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC); -- 2.20.1

3 years, 9 months

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[patch v1 3/6] x86/cpu/centaur: Replace two-condition switch-case with an if statement

by LeoLiu-oc

commit 8687bdc04128b2bd16faaae11db10128ad0da7b8 upstreams. Use a normal if statements instead of a two-condition switch-case. [ bp: Massage commit message. ] Signed-off-by: Tony W Wang-oc <TonyWWang-oc(a)zhaoxin.com> Signed-off-by: Borislav Petkov <bp(a)suse.de> Link: https://lkml.kernel.org/r/1599562666-31351-2-git-send-email-TonyWWang-oc@zh… Signed-off-by: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> --- arch/x86/kernel/cpu/centaur.c | 23 ++++++++--------------- 1 file changed, 8 insertions(+), 15 deletions(-) diff --git a/arch/x86/kernel/cpu/centaur.c b/arch/x86/kernel/cpu/centaur.c index b98529e50d6f..b3be281334e4 100644 --- a/arch/x86/kernel/cpu/centaur.c +++ b/arch/x86/kernel/cpu/centaur.c @@ -96,18 +96,14 @@ enum { static void early_init_centaur(struct cpuinfo_x86 *c) { - switch (c->x86) { #ifdef CONFIG_X86_32 - case 5: - /* Emulate MTRRs using Centaur's MCR. */ + /* Emulate MTRRs using Centaur's MCR. */ + if (c->x86 == 5) set_cpu_cap(c, X86_FEATURE_CENTAUR_MCR); - break; #endif - case 6: - if (c->x86_model >= 0xf) - set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC); - break; - } + if (c->x86 == 6 && c->x86_model >= 0xf) + set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC); + #ifdef CONFIG_X86_64 set_cpu_cap(c, X86_FEATURE_SYSENTER32); #endif @@ -176,9 +172,8 @@ static void init_centaur(struct cpuinfo_x86 *c) set_cpu_cap(c, X86_FEATURE_ARCH_PERFMON); } - switch (c->x86) { #ifdef CONFIG_X86_32 - case 5: + if (c->x86 == 5) { switch (c->x86_model) { case 4: name = "C6"; @@ -238,12 +233,10 @@ static void init_centaur(struct cpuinfo_x86 *c) c->x86_cache_size = (cc>>24)+(dd>>24); } sprintf(c->x86_model_id, "WinChip %s", name); - break; + } #endif - case 6: + if (c->x86 == 6) init_c3(c); - break; - } #ifdef CONFIG_X86_64 set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC); #endif -- 2.20.1

3 years, 9 months

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[patch v1 2/6] x86/cpu: Remove redundant cpu_detect_cache_sizes() call

by LeoLiu-oc

commit 283bab9809786cf41798512f5c1e97f4b679ba96 upstream. Both functions call init_intel_cacheinfo() which computes L2 and L3 cache sizes from CPUID(4). But then they also call cpu_detect_cache_sizes() a bit later which computes ->x86_tlbsize and L2 size from CPUID(80000006). However, the latter call is not needed because - on these CPUs, CPUID(80000006).EBX for ->x86_tlbsize is reserved - CPUID(80000006).ECX for the L2 size has the same result as CPUID(4) Therefore, remove the latter call to simplify the code. [ bp: Rewrite commit message. ] Signed-off-by: Tony W Wang-oc <TonyWWang-oc(a)zhaoxin.com> Signed-off-by: Borislav Petkov <bp(a)suse.de> Link: https://lkml.kernel.org/r/1579075257-6985-1-git-send-email-TonyWWang-oc@zha… Signed-off-by: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> --- arch/x86/kernel/cpu/centaur.c | 2 -- arch/x86/kernel/cpu/zhaoxin.c | 2 -- 2 files changed, 4 deletions(-) diff --git a/arch/x86/kernel/cpu/centaur.c b/arch/x86/kernel/cpu/centaur.c index 14433ff5b828..b98529e50d6f 100644 --- a/arch/x86/kernel/cpu/centaur.c +++ b/arch/x86/kernel/cpu/centaur.c @@ -71,8 +71,6 @@ static void init_c3(struct cpuinfo_x86 *c) c->x86_cache_alignment = c->x86_clflush_size * 2; set_cpu_cap(c, X86_FEATURE_REP_GOOD); } - - cpu_detect_cache_sizes(c); } enum { diff --git a/arch/x86/kernel/cpu/zhaoxin.c b/arch/x86/kernel/cpu/zhaoxin.c index 8e6f2f4b4afe..452fd0a6bc61 100644 --- a/arch/x86/kernel/cpu/zhaoxin.c +++ b/arch/x86/kernel/cpu/zhaoxin.c @@ -58,8 +58,6 @@ static void init_zhaoxin_cap(struct cpuinfo_x86 *c) if (c->x86 >= 0x6) set_cpu_cap(c, X86_FEATURE_REP_GOOD); - - cpu_detect_cache_sizes(c); } static void early_init_zhaoxin(struct cpuinfo_x86 *c) -- 2.20.1

3 years, 9 months

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Cloud Kernel March 2021