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Sync dfs lwp (#8123)

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geniusgogo
2023-10-17 13:07:59 +08:00
committed by GitHub
parent 7d64cdcf58
commit ecd29fda60
79 changed files with 7410 additions and 729 deletions
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69
components/mm/mm_fault.h
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@@ -20,12 +20,8 @@
#define MM_FAULT_STATUS_OK_MAPPED 1
#define MM_FAULT_STATUS_UNRECOVERABLE 4
struct rt_mm_fault_res
{
void *vaddr;
rt_size_t size;
int status;
};
#define MM_FAULT_FIXABLE_FALSE 0
#define MM_FAULT_FIXABLE_TRUE 1
enum rt_mm_fault_op
{
@@ -36,10 +32,41 @@ enum rt_mm_fault_op
enum rt_mm_fault_type
{
/**
* Occurs when an instruction attempts to access a memory address that it
* does not have permission to access
*/
MM_FAULT_TYPE_ACCESS_FAULT,
/**
* Occurs when a load or store instruction accesses a virtual memory
* address that is not currently mapped to a physical memory page
*/
MM_FAULT_TYPE_PAGE_FAULT,
/**
* Occurs like a SIGBUS
*/
MM_FAULT_TYPE_BUS_ERROR,
MM_FAULT_TYPE_GENERIC,
__PRIVATE_PAGE_INSERT,
};
enum rt_mm_hint_prefetch
{
MM_FAULT_HINT_PREFETCH_NONE,
MM_FAULT_HINT_PREFETCH_READY,
};
struct rt_mm_fault_res
{
void *vaddr;
rt_size_t size;
int status;
/* hint for prefetch strategy */
enum rt_mm_hint_prefetch hint;
};
struct rt_aspace_fault_msg
@@ -52,8 +79,36 @@ struct rt_aspace_fault_msg
struct rt_mm_fault_res response;
};
struct rt_aspace_io_msg
{
/* offset in varea */
rt_size_t off;
/* fault address in target address space */
void *fault_vaddr;
/* read/write buffer in kernel space */
void *buffer_vaddr;
struct rt_mm_fault_res response;
};
rt_inline void rt_mm_fault_res_init(struct rt_mm_fault_res *res)
{
res->vaddr = RT_NULL;
res->size = 0;
res->hint = MM_FAULT_HINT_PREFETCH_NONE;
res->status = MM_FAULT_STATUS_UNRECOVERABLE;
}
rt_inline void rt_mm_io_msg_init(struct rt_aspace_io_msg *io, rt_size_t off, void *fault_vaddr, void *buffer_vaddr)
{
io->off = off;
io->fault_vaddr = fault_vaddr;
io->buffer_vaddr = buffer_vaddr;
rt_mm_fault_res_init(&io->response);
}
struct rt_aspace;
/* MMU base page fault handler, return 1 is fixable */
/* MMU base page fault handler, MM_FAULT_FIXABLE_TRUE/MM_FAULT_FIXABLE_FALSE will be returned */
int rt_aspace_fault_try_fix(struct rt_aspace *aspace, struct rt_aspace_fault_msg *msg);
#endif /* __MM_FAULT_H__ */