AuxXxilium/linux_dsm_epyc7002
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b9d16a2a21
linux_dsm_epyc7002/arch/x86/kernel/cpu
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Aravind Gopalakrishnan b9d16a2a21 x86/cpu/amd: Set X86_FEATURE_EXTD_APICID for future processors 
Decision to use a 4-bit mask or 8-bit mask in default_get_apic_id()
is controlled by setting capability bit X86_FEATURE_EXTD_APICID.

Currently, we detect extended APIC ID support by accessing Link
Transaction Control register D18F0x68 in PCI config space.

But, not even that is needed as we can safely postulate that future
AMD processors will support 8-bit APIC IDs and we can simply set that
feature bit on them, without the PCI access.

Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jacob Shin <jacob.w.shin@gmail.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: dave.hansen@linux.intel.com
Cc: hecmargi@upv.es
Cc: mgorman@suse.de
Link: http://lkml.kernel.org/r/1430148351-9013-1-git-send-email-Aravind.Gopalakrishnan@amd.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-05-06 11:16:53 +02:00
..
mcheck Merge branch 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-04-13 13:33:20 -07:00
microcode x86/microcode/amd: Drop the pci_ids.h dependency 2015-03-31 09:54:32 +02:00
mtrr x86: mtrr: if: remove use of seq_printf return value 2015-04-15 16:35:24 -07:00
.gitignore
amd.c x86/cpu/amd: Set X86_FEATURE_EXTD_APICID for future processors 2015-05-06 11:16:53 +02:00
bugs_64.c
bugs.c x86: Get rid of ->hard_math and all the FPU asm fu 2013-06-06 14:32:04 -07:00
centaur.c x86: Remove CONFIG_X86_OOSTORE 2014-03-11 10:16:18 -07:00
common.c Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-04-14 14:37:47 -07:00
cpu.h x86/cpu: Track legacy CPU model data only on 32-bit kernels 2013-10-26 13:34:39 +02:00
cyrix.c x86: Delete non-required instances of include <linux/init.h> 2014-01-06 21:25:18 -08:00
hypervisor.c x86: Correctly detect hypervisor 2013-08-05 06:35:33 -07:00
intel_cacheinfo.c x86/cpu/cacheinfo: Fix cache_get_priv_group() for Intel processors 2015-03-23 10:22:38 +01:00
intel_pt.h perf/x86/intel/pt: Add Intel PT PMU driver 2015-04-02 17:14:20 +02:00
intel.c x86/cpu/intel: Fix trivial typo in intel_tlb_table[] 2015-02-22 08:55:58 +01:00
Makefile perf/x86/intel/bts: Add BTS PMU driver 2015-04-02 17:14:21 +02:00
match.c x86: align x86 arch with generic CPU modalias handling 2014-02-18 12:45:38 -08:00
mkcapflags.sh x86/build: Fix mkcapflags.sh bash-ism 2015-02-19 02:21:00 +01:00
mshyperv.c x86, hyperv: Mark the Hyper-V clocksource as being continuous 2015-01-20 14:36:25 +01:00
perf_event_amd_ibs.c perf/x86/amd/ibs: Convert force_ibs_eilvt_setup() to void 2015-02-18 17:01:46 +01:00
perf_event_amd_iommu.c cpumask: factor out show_cpumap into separate helper function 2014-11-07 11:45:00 -08:00
perf_event_amd_iommu.h perf/x86/amd: AMD IOMMU Performance Counter PERF uncore PMU implementation 2013-06-19 13:04:53 +02:00
perf_event_amd_uncore.c cpumask: factor out show_cpumap into separate helper function 2014-11-07 11:45:00 -08:00
perf_event_amd.c perf/x86: Add 'index' param to get_event_constraint() callback 2015-04-02 17:33:10 +02:00
perf_event_intel_bts.c perf/x86/intel/pt: Fix the 32-bit build 2015-04-02 17:58:45 +02:00
perf_event_intel_cqm.c perf: Remove type specific target pointers 2015-03-23 10:58:04 +01:00
perf_event_intel_ds.c perf/x86/intel: Fix Core2,Atom,NHM,WSM cycles:pp events 2015-04-17 09:58:47 +02:00
perf_event_intel_lbr.c perf/x86/intel: Avoid rewriting DEBUGCTL with the same value for LBRs 2015-04-02 17:33:20 +02:00
perf_event_intel_pt.c perf/x86/intel/pt: Fix and clean up error handling in pt_event_add() 2015-04-18 13:31:26 +02:00
perf_event_intel_rapl.c perf/x86/intel/rapl: Fix energy counter measurements but supporing per domain energy units 2015-04-17 09:58:56 +02:00
perf_event_intel_uncore_nhmex.c perf/x86/uncore: Fix coccinelle warnings 2014-08-13 07:51:09 +02:00
perf_event_intel_uncore_snb.c perf/x86/intel/uncore: Update support for client uncore IMC PMU 2014-09-24 14:48:25 +02:00
perf_event_intel_uncore_snbep.c perf/x86/intel/uncore: Delete an unnecessary check before pci_dev_put() call 2015-02-18 17:01:42 +01:00
perf_event_intel_uncore.c perf/x86/intel/uncore: Move uncore_box_init() out of driver initialization 2015-01-28 13:04:34 +01:00
perf_event_intel_uncore.h perf/x86/intel/uncore: Move uncore_box_init() out of driver initialization 2015-01-28 13:04:34 +01:00
perf_event_intel.c perf/x86/intel: Add Broadwell support for the LBR callstack 2015-04-17 09:59:07 +02:00
perf_event_knc.c x86: Replace __get_cpu_var uses 2014-08-26 13:45:49 -04:00
perf_event_p4.c x86: Replace __get_cpu_var uses 2014-08-26 13:45:49 -04:00
perf_event_p6.c perf/x86/intel/p6: Add userspace RDPMC quirk for PPro 2014-02-09 13:08:24 +01:00
perf_event.c Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-04-14 14:37:47 -07:00
perf_event.h perf/x86: Fix hw_perf_event::flags collision 2015-04-17 09:50:43 +02:00
perfctr-watchdog.c perf/x86: Add support for Intel Xeon-Phi Knights Corner PMU 2012-10-04 13:32:37 +02:00
powerflags.c update AMD powerflags comments 2013-05-28 12:02:10 +02:00
proc.c x86: Replace seq_printf() with seq_puts() 2014-12-08 11:48:15 +01:00
rdrand.c x86, rdrand: When nordrand is specified, disable RDSEED as well 2014-05-11 20:25:20 -07:00
scattered.c x86: Add Intel Processor Trace (INTEL_PT) cpu feature detection 2015-04-02 17:14:18 +02:00
topology.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
transmeta.c x86: Delete non-required instances of include <linux/init.h> 2014-01-06 21:25:18 -08:00
umc.c x86: Delete non-required instances of include <linux/init.h> 2014-01-06 21:25:18 -08:00
vmware.c x86: Correctly detect hypervisor 2013-08-05 06:35:33 -07:00