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authorLinus Torvalds <torvalds@linux-foundation.org>2020-06-05 11:18:53 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-05 11:18:53 -0700
commitf4dd60a3d4c7656dcaa0ba2afb503528c86f913f (patch)
treeee584ae030806416e8bee7eb099fd40b67cbbe4a /arch/x86/events
parent435faf5c218a47fd6258187f62d9bb1009717896 (diff)
parentbd1de2a7aace4d1d312fb1be264b8fafdb706208 (diff)
downloadlinux-f4dd60a3d4c7656dcaa0ba2afb503528c86f913f.tar.gz
Merge tag 'x86-mm-2020-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm updates from Ingo Molnar: "Misc changes: - Unexport various PAT primitives - Unexport per-CPU tlbstate and uninline TLB helpers" * tag 'x86-mm-2020-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits) x86/tlb/uv: Add a forward declaration for struct flush_tlb_info x86/cpu: Export native_write_cr4() only when CONFIG_LKTDM=m x86/tlb: Restrict access to tlbstate xen/privcmd: Remove unneeded asm/tlb.h include x86/tlb: Move PCID helpers where they are used x86/tlb: Uninline nmi_uaccess_okay() x86/tlb: Move cr4_set_bits_and_update_boot() to the usage site x86/tlb: Move paravirt_tlb_remove_table() to the usage site x86/tlb: Move __flush_tlb_all() out of line x86/tlb: Move flush_tlb_others() out of line x86/tlb: Move __flush_tlb_one_kernel() out of line x86/tlb: Move __flush_tlb_one_user() out of line x86/tlb: Move __flush_tlb_global() out of line x86/tlb: Move __flush_tlb() out of line x86/alternatives: Move temporary_mm helpers into C x86/cr4: Sanitize CR4.PCE update x86/cpu: Uninline CR4 accessors x86/tlb: Uninline __get_current_cr3_fast() x86/mm: Use pgprotval_t in protval_4k_2_large() and protval_large_2_4k() x86/mm: Unexport __cachemode2pte_tbl ...
Diffstat (limited to 'arch/x86/events')
-rw-r--r--arch/x86/events/core.c11
1 files changed, 3 insertions, 8 deletions
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 9e63ee50b19a..ea2a3d151294 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -2166,11 +2166,6 @@ static int x86_pmu_event_init(struct perf_event *event)
return err;
}
-static void refresh_pce(void *ignored)
-{
- load_mm_cr4_irqsoff(this_cpu_read(cpu_tlbstate.loaded_mm));
-}
-
static void x86_pmu_event_mapped(struct perf_event *event, struct mm_struct *mm)
{
if (!(event->hw.flags & PERF_X86_EVENT_RDPMC_ALLOWED))
@@ -2189,7 +2184,7 @@ static void x86_pmu_event_mapped(struct perf_event *event, struct mm_struct *mm)
lockdep_assert_held_write(&mm->mmap_sem);
if (atomic_inc_return(&mm->context.perf_rdpmc_allowed) == 1)
- on_each_cpu_mask(mm_cpumask(mm), refresh_pce, NULL, 1);
+ on_each_cpu_mask(mm_cpumask(mm), cr4_update_pce, NULL, 1);
}
static void x86_pmu_event_unmapped(struct perf_event *event, struct mm_struct *mm)
@@ -2199,7 +2194,7 @@ static void x86_pmu_event_unmapped(struct perf_event *event, struct mm_struct *m
return;
if (atomic_dec_and_test(&mm->context.perf_rdpmc_allowed))
- on_each_cpu_mask(mm_cpumask(mm), refresh_pce, NULL, 1);
+ on_each_cpu_mask(mm_cpumask(mm), cr4_update_pce, NULL, 1);
}
static int x86_pmu_event_idx(struct perf_event *event)
@@ -2257,7 +2252,7 @@ static ssize_t set_attr_rdpmc(struct device *cdev,
else if (x86_pmu.attr_rdpmc == 2)
static_branch_dec(&rdpmc_always_available_key);
- on_each_cpu(refresh_pce, NULL, 1);
+ on_each_cpu(cr4_update_pce, NULL, 1);
x86_pmu.attr_rdpmc = val;
}