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x86/vector: Rename used_vectors to system_vectors

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used_vectors is a nisnomer as it only has the system vectors which are
excluded from the regular vector allocation marked. It's not what the name
suggests storage for the actually used vectors.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Juergen Gross <jgross@suse.com>
Tested-by: Yu Chen <yu.c.chen@intel.com>
Acked-by: Juergen Gross <jgross@suse.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Alok Kataria <akataria@vmware.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Rui Zhang <rui.zhang@intel.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Len Brown <lenb@kernel.org>
Link: https://lkml.kernel.org/r/20170913213154.150209009@linutronix.de
This commit is contained in:
Thomas Gleixner 2017-09-13 23:29:26 +02:00
parent c1d1ee9ac1
commit 7854f82293
5 changed files with 11 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/x86/include/asm/desc.h
View File

@ -392,7 +392,7 @@ static inline void set_desc_limit(struct desc_struct *desc, unsigned long limit)
void update_intr_gate(unsigned int n, const void *addr);
void alloc_intr_gate(unsigned int n, const void *addr);
extern unsigned long used_vectors[];
extern unsigned long system_vectors[];
#ifdef CONFIG_X86_64
DECLARE_PER_CPU(u32, debug_idt_ctr);

2
arch/x86/kernel/apic/vector.c
View File

@ -175,7 +175,7 @@ next:
if (unlikely(current_vector == vector))
goto next_cpu;
if (test_bit(vector, used_vectors))
if (test_bit(vector, system_vectors))
goto next;
for_each_cpu(new_cpu, vector_searchmask) {

12
arch/x86/kernel/idt.c
View File

@ -225,7 +225,7 @@ idt_setup_from_table(gate_desc *idt, const struct idt_data *t, int size, bool sy
idt_init_desc(&desc, t);
write_idt_entry(idt, t->vector, &desc);
if (sys)
set_bit(t->vector, used_vectors);
set_bit(t->vector, system_vectors);
}
}
@ -313,14 +313,14 @@ void __init idt_setup_apic_and_irq_gates(void)
idt_setup_from_table(idt_table, apic_idts, ARRAY_SIZE(apic_idts), true);
for_each_clear_bit_from(i, used_vectors, FIRST_SYSTEM_VECTOR) {
for_each_clear_bit_from(i, system_vectors, FIRST_SYSTEM_VECTOR) {
entry = irq_entries_start + 8 * (i - FIRST_EXTERNAL_VECTOR);
set_intr_gate(i, entry);
}
for_each_clear_bit_from(i, used_vectors, NR_VECTORS) {
for_each_clear_bit_from(i, system_vectors, NR_VECTORS) {
#ifdef CONFIG_X86_LOCAL_APIC
set_bit(i, used_vectors);
set_bit(i, system_vectors);
set_intr_gate(i, spurious_interrupt);
#else
entry = irq_entries_start + 8 * (i - FIRST_EXTERNAL_VECTOR);
@ -358,7 +358,7 @@ void idt_invalidate(void *addr)
void __init update_intr_gate(unsigned int n, const void *addr)
{
if (WARN_ON_ONCE(!test_bit(n, used_vectors)))
if (WARN_ON_ONCE(!test_bit(n, system_vectors)))
return;
set_intr_gate(n, addr);
}
@ -366,6 +366,6 @@ void __init update_intr_gate(unsigned int n, const void *addr)
void alloc_intr_gate(unsigned int n, const void *addr)
{
BUG_ON(n < FIRST_SYSTEM_VECTOR);
if (!test_and_set_bit(n, used_vectors))
if (!test_and_set_bit(n, system_vectors))
set_intr_gate(n, addr);
}

4
arch/x86/kernel/irq.c
View File

@ -134,7 +134,7 @@ int arch_show_interrupts(struct seq_file *p, int prec)
seq_puts(p, " Machine check polls\n");
#endif
#if IS_ENABLED(CONFIG_HYPERV) || defined(CONFIG_XEN)
if (test_bit(HYPERVISOR_CALLBACK_VECTOR, used_vectors)) {
if (test_bit(HYPERVISOR_CALLBACK_VECTOR, system_vectors)) {
seq_printf(p, "%*s: ", prec, "HYP");
for_each_online_cpu(j)
seq_printf(p, "%10u ",
@ -416,7 +416,7 @@ int check_irq_vectors_for_cpu_disable(void)
*/
for (vector = FIRST_EXTERNAL_VECTOR;
vector < FIRST_SYSTEM_VECTOR; vector++) {
if (!test_bit(vector, used_vectors) &&
if (!test_bit(vector, system_vectors) &&
IS_ERR_OR_NULL(per_cpu(vector_irq, cpu)[vector])) {
if (++count == this_count)
return 0;

2
arch/x86/kernel/traps.c
View File

@ -71,7 +71,7 @@
#include <asm/proto.h>
#endif
DECLARE_BITMAP(used_vectors, NR_VECTORS);
DECLARE_BITMAP(system_vectors, NR_VECTORS);
static inline void cond_local_irq_enable(struct pt_regs *regs)
{