Subversion Repositories HelenOS

Rev

Rev 2927 | Rev 4343 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 2927 Rev 3588
Line 45... Line 45...
45
#include <config.h>
45
#include <config.h>
46
#include <panic.h>
46
#include <panic.h>
47
#include <arch/asm.h>
47
#include <arch/asm.h>
48
#include <arch/barrier.h>
48
#include <arch/barrier.h>
49
#include <memstr.h>
49
#include <memstr.h>
-
 
50
#include <align.h>
50
 
51
 
51
static void set_environment(void);
52
static void set_environment(void);
52
 
53
 
53
/** Initialize ia64 virtual address translation subsystem. */
54
/** Initialize ia64 virtual address translation subsystem. */
54
void page_arch_init(void)
55
void page_arch_init(void)
Line 260... Line 261...
260
    v->present.ps = PAGE_WIDTH;
261
    v->present.ps = PAGE_WIDTH;
261
    v->present.key = 0;
262
    v->present.key = 0;
262
    v->present.tag.tag_word = tag;
263
    v->present.tag.tag_word = tag;
263
}
264
}
264
 
265
 
-
 
266
extern uintptr_t last_frame;
-
 
267
 
-
 
268
 
-
 
269
uintptr_t hw_map(uintptr_t physaddr, size_t size)
-
 
270
{
-
 
271
    if (last_frame + ALIGN_UP(size, PAGE_SIZE) > KA2PA(KERNEL_ADDRESS_SPACE_END_ARCH))
-
 
272
        panic("Unable to map physical memory %p (%d bytes)", physaddr, size)
-
 
273
   
-
 
274
    uintptr_t virtaddr = PA2KA(last_frame);
-
 
275
    pfn_t i;
-
 
276
    for (i = 0; i < ADDR2PFN(ALIGN_UP(size, PAGE_SIZE)); i++) {
-
 
277
        uintptr_t addr = PFN2ADDR(i);
-
 
278
        page_mapping_insert(AS_KERNEL, virtaddr + addr, physaddr + addr, PAGE_NOT_CACHEABLE | PAGE_WRITE);
-
 
279
    }
-
 
280
   
-
 
281
    last_frame = ALIGN_UP(last_frame + size, FRAME_SIZE);
-
 
282
   
-
 
283
    return virtaddr;
-
 
284
}
-
 
285
 
-
 
286
 
-
 
287
 
265
/** @}
288
/** @}
266
 */
289
 */