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sys/dev/dcons/dcons_os.c
| Show First 20 Lines • Show All 303 Lines • ▼ Show 20 Lines | #if defined(__i386__) || defined(__amd64__) | ||||
| if (getenv_quad("dcons.addr", &addr) > 0 && | if (getenv_quad("dcons.addr", &addr) > 0 && | ||||
| getenv_quad("dcons.size", &size) > 0) { | getenv_quad("dcons.size", &size) > 0) { | ||||
| #ifdef __i386__ | #ifdef __i386__ | ||||
| vm_paddr_t pa; | vm_paddr_t pa; | ||||
| /* | /* | ||||
| * Allow read/write access to dcons buffer. | * Allow read/write access to dcons buffer. | ||||
| */ | */ | ||||
| for (pa = trunc_page(addr); pa < addr + size; pa += PAGE_SIZE) | for (pa = trunc_page(addr); pa < addr + size; pa += PAGE_SIZE) | ||||
| *vtopte(PMAP_MAP_LOW + pa) |= PG_RW; | pmap_ksetrw(PMAP_MAP_LOW + pa); | ||||
| invltlb(); | invltlb(); | ||||
| #endif | #endif | ||||
| /* XXX P to V */ | /* XXX P to V */ | ||||
| #ifdef __amd64__ | #ifdef __amd64__ | ||||
| dg.buf = (struct dcons_buf *)(vm_offset_t)(KERNBASE + addr); | dg.buf = (struct dcons_buf *)(vm_offset_t)(KERNBASE + addr); | ||||
| #else /* __i386__ */ | #else /* __i386__ */ | ||||
| dg.buf = (struct dcons_buf *)((vm_offset_t)PMAP_MAP_LOW + | dg.buf = (struct dcons_buf *)((vm_offset_t)PMAP_MAP_LOW + | ||||
| addr); | addr); | ||||
| ▲ Show 20 Lines • Show All 175 Lines • Show Last 20 Lines | |||||