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x86/mce/AMD: Document some functionality
In an attempt to aid in understanding of what the threshold_block structure holds, provide comments to describe the members here. Also, trim comments around threshold_restart_bank() and update copyright info. No functional change is introduced. Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com> [ Shorten comments. ] Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: linux-edac <linux-edac@vger.kernel.org> Link: http://lkml.kernel.org/r/1457021458-2522-6-git-send-email-Aravind.Gopalakrishnan@amd.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
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2 changed files with 19 additions and 14 deletions
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@ -27,15 +27,23 @@ struct amd_l3_cache {
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};
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struct threshold_block {
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unsigned int block;
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unsigned int bank;
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unsigned int cpu;
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u32 address;
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u16 interrupt_enable;
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bool interrupt_capable;
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u16 threshold_limit;
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struct kobject kobj;
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struct list_head miscj;
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unsigned int block; /* Number within bank */
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unsigned int bank; /* MCA bank the block belongs to */
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unsigned int cpu; /* CPU which controls MCA bank */
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u32 address; /* MSR address for the block */
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u16 interrupt_enable; /* Enable/Disable APIC interrupt */
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bool interrupt_capable; /* Bank can generate an interrupt. */
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u16 threshold_limit; /*
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* Value upon which threshold
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* interrupt is generated.
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*/
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struct kobject kobj; /* sysfs object */
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struct list_head miscj; /*
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* List of threshold blocks
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* within a bank.
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*/
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};
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struct threshold_bank {
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@ -1,5 +1,5 @@
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/*
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* (c) 2005-2015 Advanced Micro Devices, Inc.
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* (c) 2005-2016 Advanced Micro Devices, Inc.
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* Your use of this code is subject to the terms and conditions of the
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* GNU general public license version 2. See "COPYING" or
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* http://www.gnu.org/licenses/gpl.html
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@ -201,10 +201,7 @@ static int lvt_off_valid(struct threshold_block *b, int apic, u32 lo, u32 hi)
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return 1;
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};
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/*
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* Called via smp_call_function_single(), must be called with correct
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* cpu affinity.
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*/
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/* Reprogram MCx_MISC MSR behind this threshold bank. */
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static void threshold_restart_bank(void *_tr)
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{
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struct thresh_restart *tr = _tr;
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