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Differential D3538 Diff 8365 sys/arm64/arm64/machdep.c

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sys/arm64/arm64/machdep.c

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#include <machine/vfp.h> #include <machine/vfp.h>
#endif #endif
#ifdef FDT #ifdef FDT
#include <dev/fdt/fdt_common.h> #include <dev/fdt/fdt_common.h>
#include <dev/ofw/openfirm.h> #include <dev/ofw/openfirm.h>
#endif #endif
#define MAX_DMAP_ENTRIES 64
struct direct_map_desc arm64_dmap_desc[MAX_DMAP_ENTRIES];
struct pcpu __pcpu[MAXCPU]; struct pcpu __pcpu[MAXCPU];
static struct trapframe proc0_tf; static struct trapframe proc0_tf;
vm_paddr_t phys_avail[PHYS_AVAIL_SIZE + 2]; vm_paddr_t phys_avail[PHYS_AVAIL_SIZE + 2];
vm_paddr_t dump_avail[PHYS_AVAIL_SIZE + 2]; vm_paddr_t dump_avail[PHYS_AVAIL_SIZE + 2];
int early_boot = 1; int early_boot = 1;
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void void
initarm(struct arm64_bootparams *abp) initarm(struct arm64_bootparams *abp)
{ {
struct efi_map_header *efihdr; struct efi_map_header *efihdr;
struct pcpu *pcpup; struct pcpu *pcpup;
vm_offset_t lastaddr; vm_offset_t lastaddr;
caddr_t kmdp; caddr_t kmdp;
vm_paddr_t mem_len; vm_paddr_t mem_len;
vm_offset_t dmap_address;
int dmap_cnt;
int i; int i;
/* Set the module data location */ /* Set the module data location */
preload_metadata = (caddr_t)(uintptr_t)(abp->modulep); preload_metadata = (caddr_t)(uintptr_t)(abp->modulep);
/* Find the kernel address */ /* Find the kernel address */
kmdp = preload_search_by_type("elf kernel"); kmdp = preload_search_by_type("elf kernel");
if (kmdp == NULL) if (kmdp == NULL)
Show All 10 Lines#endif
lastaddr = MD_FETCH(kmdp, MODINFOMD_KERNEND, vm_offset_t); lastaddr = MD_FETCH(kmdp, MODINFOMD_KERNEND, vm_offset_t);
/* Load the physical memory ranges */ /* Load the physical memory ranges */
physmap_idx = 0; physmap_idx = 0;
efihdr = (struct efi_map_header *)preload_search_info(kmdp, efihdr = (struct efi_map_header *)preload_search_info(kmdp,
MODINFO_METADATA | MODINFOMD_EFI_MAP); MODINFO_METADATA | MODINFOMD_EFI_MAP);
add_efi_map_entries(efihdr, physmap, &physmap_idx); add_efi_map_entries(efihdr, physmap, &physmap_idx);
/* Print the memory map */ /* Load the memory map and prepare DMAP descriptor */
mem_len = 0; mem_len = 0;
for (i = 0; i < physmap_idx; i += 2) { dmap_address = DMAP_MIN_ADDRESS;
for (i = 0, dmap_cnt = 0; i < physmap_idx; i += 2, dmap_cnt++) {
/* The last entry must be zero, so decrease the limit by 1 */
if (dmap_cnt >= (MAX_DMAP_ENTRIES - 1))
panic("Physmap is too fragmented to fit DMAP");
dump_avail[i] = physmap[i]; dump_avail[i] = physmap[i];
dump_avail[i + 1] = physmap[i + 1]; dump_avail[i + 1] = physmap[i + 1];
mem_len += physmap[i + 1] - physmap[i]; mem_len += physmap[i + 1] - physmap[i];
arm64_dmap_desc[dmap_cnt].va_start = dmap_address;
arm64_dmap_desc[dmap_cnt].va_end = dmap_address + mem_len - 1;
arm64_dmap_desc[dmap_cnt].pa_start = physmap[i];
arm64_dmap_desc[dmap_cnt].pa_end = physmap[i + 1] - 1;
arm64_dmap_desc[dmap_cnt].flags = DMAP_FLAG_VALID;
dmap_address += mem_len;
if (dmap_address > DMAP_MAX_ADDRESS)
panic("Physmap is too large to fit DMAP");
} }
dump_avail[i] = 0; dump_avail[i] = 0;
dump_avail[i + 1] = 0; dump_avail[i + 1] = 0;
/* Set the pcpu data, this is needed by pmap_bootstrap */ /* Set the pcpu data, this is needed by pmap_bootstrap */
pcpup = &__pcpu[0]; pcpup = &__pcpu[0];
pcpu_init(pcpup, 0, sizeof(struct pcpu)); pcpu_init(pcpup, 0, sizeof(struct pcpu));
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