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remote TLB invalidation code for multi-threaded applications (e.g., during munmap())

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This commit is contained in:
Balazs Gerofi bgerofi@riken.jp
2014-07-22 12:24:07 +09:00
parent a5b36e2b51
commit 101a0f6e4a
11 changed files with 435 additions and 33 deletions
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31
lib/include/ihk/mm.h
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@ -8,6 +8,7 @@
*/
/*
* HISTORY
* 2014/07: bgerofi: remote TLB flush handler
*/
#ifndef __HEADER_GENERIC_IHK_MM_H
@ -15,8 +16,11 @@
#include <ihk/types.h>
#include <memory.h>
#include <ihk/lock.h>
#include <ihk/atomic.h>
struct memobj;
struct process_vm;
enum ihk_mc_gma_type {
IHK_MC_GMA_MAP_START,
@ -115,16 +119,18 @@ int ihk_mc_pt_change_page(page_table_t pt, void *virt,
enum ihk_mc_pt_attribute);
int ihk_mc_pt_clear_page(page_table_t pt, void *virt);
int ihk_mc_pt_clear_large_page(page_table_t pt, void *virt);
int ihk_mc_pt_clear_range(page_table_t pt, void *start, void *end);
int ihk_mc_pt_free_range(page_table_t pt, void *start, void *end, struct memobj *memobj);
int ihk_mc_pt_clear_range(page_table_t pt, struct process_vm *vm,
void *start, void *end);
int ihk_mc_pt_free_range(page_table_t pt, struct process_vm *vm,
void *start, void *end, struct memobj *memobj);
int ihk_mc_pt_change_attr_range(page_table_t pt, void *start, void *end,
enum ihk_mc_pt_attribute clrattr,
enum ihk_mc_pt_attribute setattr);
int ihk_mc_pt_alloc_range(page_table_t pt, void *start, void *end,
enum ihk_mc_pt_attribute attr);
pte_t *ihk_mc_pt_lookup_pte(page_table_t pt, void *virt, void **pgbasep, size_t *pgsizep, int *p2alignp);
int ihk_mc_pt_set_range(page_table_t pt, void *start, void *end,
uintptr_t phys, enum ihk_mc_pt_attribute attr);
int ihk_mc_pt_set_range(page_table_t pt, struct process_vm *vm, void *start,
void *end, uintptr_t phys, enum ihk_mc_pt_attribute attr);
int ihk_mc_pt_set_pte(page_table_t pt, pte_t *ptep, size_t pgsize, uintptr_t phys, enum ihk_mc_pt_attribute attr);
int ihk_mc_pt_prepare_map(page_table_t pt, void *virt, unsigned long size,
enum ihk_mc_pt_prepare_flag);
@ -133,7 +139,8 @@ typedef int pte_visitor_t(void *arg, page_table_t pt, pte_t *ptep,
void *pgaddr, size_t pgsize);
int visit_pte_range(page_table_t pt, void *start, void *end,
enum visit_pte_flag flags, pte_visitor_t *funcp, void *arg);
int move_pte_range(page_table_t pt, void *src, void *dest, size_t size);
int move_pte_range(page_table_t pt, struct process_vm *vm,
void *src, void *dest, size_t size);
struct page_table *ihk_mc_pt_create(enum ihk_mc_ap_flag ap_flag);
/* XXX: proper use of struct page_table and page_table_t is unknown */
@ -142,4 +149,18 @@ void ihk_mc_load_page_table(struct page_table *pt);
int ihk_mc_pt_virt_to_phys(struct page_table *pt,
void *virt, unsigned long *phys);
void remote_flush_tlb_cpumask(struct process_vm *vm,
unsigned long addr, int cpu_id);
extern void (*__tlb_flush_handler)(int vector);
struct tlb_flush_entry {
struct process_vm *vm;
unsigned long addr;
ihk_atomic_t pending;
ihk_spinlock_t lock;
} __attribute__((aligned(64)));
extern struct tlb_flush_entry tlb_flush_vector[IHK_TLB_FLUSH_IRQ_VECTOR_SIZE];
#endif