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-rw-r--r--include/apos/assert.h13
-rw-r--r--include/apos/mem_regions.h5
-rw-r--r--include/apos/syscalls.h3
-rw-r--r--include/apos/tcb.h21
-rw-r--r--include/apos/uapi.h3
-rw-r--r--include/apos/vmem.h2
-rw-r--r--include/arch/vmem.h6
7 files changed, 38 insertions, 15 deletions
diff --git a/include/apos/assert.h b/include/apos/assert.h
index 7200fd2..f3d9a4d 100644
--- a/include/apos/assert.h
+++ b/include/apos/assert.h
@@ -8,24 +8,25 @@
#if !defined(DNDEBUG)
#define catastrophic_assert(x) \
do { \
- if (x) { \
- err("catastrophic assertion failed: %s\n", QUOTE(x)); \
+ if (unlikely(!(x))) { \
+ error("catastrophic assertion failed: %s\n", \
+ QUOTE(x)); \
while (1) \
; \
} \
} while (0);
#define hard_assert(x, r) \
- do { \
- if (x) { \
+ { \
+ if (unlikely(!(x))) { \
warn("hard assertion failed: %s\n", QUOTE(x)); \
return r; \
} \
- } while (0);
+ }
#define soft_assert(x) \
do { \
- if (x) { \
+ if (unlikely(!(x))) { \
info("soft assertion failed: %s\n", QUOTE(x)); \
} \
} while (0);
diff --git a/include/apos/mem_regions.h b/include/apos/mem_regions.h
index efe0592..9f09eff 100644
--- a/include/apos/mem_regions.h
+++ b/include/apos/mem_regions.h
@@ -7,10 +7,12 @@
#include <arch/vmem.h>
#define mem_container(ptr) container_of(ptr, struct mem_region, sp_n)
+#define is_region_used(r) __is_set(r->flags, MR_USED)
struct mem_region_root {
struct sp_root free_regions;
struct sp_root used_regions;
+ struct mem_region *first;
};
struct mem_region {
@@ -26,7 +28,7 @@ struct mem_region {
};
stat_t init_region(struct mem_region_root *r, vm_t start, size_t arena_size);
-void destroy_region(struct mem_region_root *r);
+stat_t destroy_region(struct mem_region_root *r);
vm_t alloc_region(struct mem_region_root *r, size_t size, size_t *actual_size,
vmflags_t flags);
@@ -35,6 +37,7 @@ vm_t alloc_fixed_region(struct mem_region_root *r, vm_t start, size_t size,
stat_t free_region(struct mem_region_root *r, vm_t start);
stat_t free_known_region(struct mem_region_root *r, struct mem_region *m);
+struct mem_region *find_first_region(struct mem_region_root *r);
struct mem_region *find_used_region(struct mem_region_root *r, vm_t start);
struct mem_region *find_closest_used_region(struct mem_region_root *r,
vm_t start);
diff --git a/include/apos/syscalls.h b/include/apos/syscalls.h
index 9346da3..e7b1cd5 100644
--- a/include/apos/syscalls.h
+++ b/include/apos/syscalls.h
@@ -25,7 +25,8 @@ enum {
* structure of the OS, but these following syscalls are probably
* required */
SYS_IPC_SERVER, /* inform kernel that process should be treated as a server */
- SYS_IPC_REQ, /* IPC request to server */
+ SYS_IPC_REQ_PROC, /* IPC request to server on behalf of process */
+ SYS_IPC_REQ_THREAD, /* IPC request to server on behalf of thread */
SYS_IPC_RESP, /* IPC response from server */
/* process management */
diff --git a/include/apos/tcb.h b/include/apos/tcb.h
index 11e1b5a..f31bf77 100644
--- a/include/apos/tcb.h
+++ b/include/apos/tcb.h
@@ -5,14 +5,24 @@
#include <apos/types.h>
#include <tcb.h> /* arch-specific data */
+/* process(/main) threads don't have any previous threads */
+#define is_proc(t) (!t->prev)
+
struct tcb {
struct arch_tcbd tcbd;
/* mapping data
* TODO: should mem_region_root be renamed mem_root or something? feels
* kind of clunky */
- struct mem_region_root sp_r;
+ union {
+ /* if we're the main thread, we control the memory regions */
+ struct mem_region_root sp_r;
+ /* if we're not the main thread, we have a pointer to the main
+ * thread */
+ struct tcb *proc;
+ };
+ id_t pid;
id_t tid;
vm_t callback;
@@ -29,15 +39,18 @@ struct tcb {
/* vm root branch */
struct vm_branch *b_r;
- struct tcb *parent;
+ /* linked list of threads in this process */
struct tcb *next;
+ struct tcb *prev;
};
void init_tcbs();
void destroy_tcbs();
-struct tcb *new_thread();
-void destroy_thread(struct tcb *);
+struct tcb *create_thread(struct tcb *p);
+struct tcb *create_proc(struct tcb *p);
+stat_t destroy_thread(struct tcb *t);
+stat_t destroy_proc(struct tcb *p);
struct tcb *cur_tcb();
void use_tcb(struct tcb *);
diff --git a/include/apos/uapi.h b/include/apos/uapi.h
index a3b54d5..b3d345f 100644
--- a/include/apos/uapi.h
+++ b/include/apos/uapi.h
@@ -94,7 +94,8 @@ SYSCALL_DECLARE(free_timer);
/* ipc */
SYSCALL_DECLARE(ipc_server);
-SYSCALL_DECLARE(ipc_req);
+SYSCALL_DECLARE(ipc_req_proc);
+SYSCALL_DECLARE(ipc_req_thread);
SYSCALL_DECLARE(ipc_resp);
/* proc */
diff --git a/include/apos/vmem.h b/include/apos/vmem.h
index f1b0d19..036780f 100644
--- a/include/apos/vmem.h
+++ b/include/apos/vmem.h
@@ -12,7 +12,9 @@ vm_t alloc_shared_uvmem(struct tcb *r, size_t size, vmflags_t flags);
vm_t ref_shared_uvmem(struct tcb *r1, struct tcb *r2, vm_t va, vmflags_t flags);
stat_t free_uvmem(struct tcb *r, vm_t a);
+
stat_t init_uvmem(struct tcb *r, vm_t base, vm_t top);
+stat_t destroy_uvmem(struct tcb *r);
stat_t alloc_uvmem_wrapper(struct vm_branch *b, pm_t *offset, vm_t vaddr,
vmflags_t flags, enum mm_order order, void *data);
diff --git a/include/arch/vmem.h b/include/arch/vmem.h
index 74b0aa5..5197c67 100644
--- a/include/arch/vmem.h
+++ b/include/arch/vmem.h
@@ -16,13 +16,15 @@ stat_t stat_vpage(struct vm_branch *branch, vm_t vaddr, pm_t *paddr,
void flush_tlb();
void flush_tlb_all();
-void populate_root_branch(struct vm_branch *b);
+stat_t populate_kvmem(struct vm_branch *b);
struct vm_branch *init_vmem(void *fdt);
#if defined(DEBUG)
vm_t setup_kernel_io(struct vm_branch *b, vm_t paddr);
#endif
-stat_t clone_vmbranch(struct vm_branch *, struct vm_branch *);
+struct vm_branch *create_vmem();
+stat_t destroy_vmem(struct vm_branch *);
+stat_t clone_uvmem(struct vm_branch *, struct vm_branch *);
#endif /* APOS_ARCH_PAGES_H */
generated by cgit v1.3 (git 2.53.0) at 2026-08-27 02:08:57 +0000