36#include <sys/devmap.h>
38#include <vm/vm_extern.h>
40#include <machine/vmparam.h>
51#define AKVA_DEVMAP_MAX_ENTRIES 32
56#if defined(__aarch64__) || defined(__riscv)
67 const struct devmap_entry *pd;
70 prfunc(
"No static device mappings.\n");
74 prfunc(
"Static device mappings:\n");
76 prfunc(
" 0x%08jx - 0x%08jx mapped at VA 0x%08jx\n",
78 (uintmax_t)(pd->pd_pa + pd->pd_size - 1),
79 (uintmax_t)pd->pd_va);
100 const struct devmap_entry *pd;
106 lowaddr = DEVMAP_MAX_VADDR;
107 for (pd =
devmap_table; pd != NULL && pd->pd_size != 0; ++pd) {
108 if (lowaddr > pd->pd_va)
126 struct devmap_entry *m;
129 panic(
"devmap_add_entry() after devmap_bootstrap()");
132 panic(
"AKVA_DEVMAP_MAX_ENTRIES is too small");
144 if ((pa & 0x000fffff) == 0 && (sz & 0x000fffff) == 0) {
181 const struct devmap_entry *pd;
197 pmap_preboot_map_attr(pd->pd_pa, pd->pd_va, pd->pd_size,
198 VM_PROT_READ | VM_PROT_WRITE, VM_MEMATTR_DEVICE);
200 pmap_map_chunk(l1pt, pd->pd_va, pd->pd_pa, pd->pd_size,
201 VM_PROT_READ | VM_PROT_WRITE, PTE_DEVICE);
203#elif defined(__aarch64__) || defined(__riscv)
204 pmap_kenter_device(pd->pd_va, pd->pd_size, pd->pd_pa);
216 const struct devmap_entry *pd;
222 if (pa >= pd->pd_pa && pa + size <= pd->pd_pa + pd->pd_size)
223 return ((
void *)(pd->pd_va + (pa - pd->pd_pa)));
236 const struct devmap_entry *pd;
240 return (DEVMAP_PADDR_NOTFOUND);
242 va = (vm_offset_t)vpva;
244 if (va >= pd->pd_va && va + size <= pd->pd_va + pd->pd_size)
245 return ((vm_paddr_t)(pd->pd_pa + (va - pd->pd_va)));
248 return (DEVMAP_PADDR_NOTFOUND);
265 vm_offset_t va, offset;
272 offset = pa & PAGE_MASK;
274 size = round_page(size + offset);
276#if defined(__aarch64__) || defined(__riscv)
280 KASSERT(va >= VM_MAX_KERNEL_ADDRESS - PMAP_MAPDEV_EARLY_SIZE,
281 (
"Too many early devmap mappings"));
284 va = kva_alloc(size);
286 panic(
"pmap_mapdev: Couldn't alloc kernel virtual memory");
288 pmap_kenter_device(va, size, pa);
290 return ((
void *)(va + offset));
293#if defined(__aarch64__) || defined(__riscv)
295pmap_mapdev_attr(vm_offset_t pa, vm_size_t size, vm_memattr_t ma)
297 vm_offset_t va, offset;
304 offset = pa & PAGE_MASK;
306 size = round_page(size + offset);
311 KASSERT(va >= (VM_MAX_KERNEL_ADDRESS - (PMAP_MAPDEV_EARLY_SIZE)),
312 (
"Too many early devmap mappings 2"));
314 va = kva_alloc(size);
316 panic(
"pmap_mapdev: Couldn't alloc kernel virtual memory");
318 pmap_kenter(va, size, pa, ma);
320 return ((
void *)(va + offset));
333 if (
devmap_vtop((
void*)va, size) != DEVMAP_PADDR_NOTFOUND)
336 offset = va & PAGE_MASK;
338 size = round_page(size + offset);
340 pmap_kremove_device(va, size);
347DB_SHOW_COMMAND(devmap, db_show_devmap)
void panic(const char *fmt,...)
vm_offset_t devmap_lastaddr()
static void devmap_dump_table(int(*prfunc)(const char *,...))
void devmap_register_table(const struct devmap_entry *table)
void pmap_unmapdev(vm_offset_t va, vm_size_t size)
static struct devmap_entry akva_devmap_entries[AKVA_DEVMAP_MAX_ENTRIES]
void devmap_bootstrap(vm_offset_t l1pt, const struct devmap_entry *table)
vm_paddr_t devmap_vtop(void *vpva, vm_size_t size)
static vm_offset_t akva_devmap_vaddr
static const struct devmap_entry * devmap_table
static boolean_t devmap_bootstrap_done
void * devmap_ptov(vm_paddr_t pa, vm_size_t size)
#define AKVA_DEVMAP_MAX_ENTRIES
void * pmap_mapdev(vm_offset_t pa, vm_size_t size)
static u_int akva_devmap_idx
void devmap_add_entry(vm_paddr_t pa, vm_size_t sz)
void devmap_print_table()
int printf(const char *fmt,...)