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26 | # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | # |
27 | # |
28 | 28 | ||
29 | #include <arch/asm/regname.h> |
29 | #include <arch/asm/regname.h> |
30 | #include <arch/asm/spr.h> |
30 | #include <arch/asm/spr.h> |
- | 31 | #include <arch/boot/boot.h> |
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- | 32 | #include <arch/boot/memmap.h> |
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31 | 33 | ||
32 | .section K_TEXT_START |
34 | .section K_TEXT_START |
33 | 35 | ||
34 | .global kernel_image_start |
36 | .global kernel_image_start |
35 | - | ||
36 | kernel_image_start: |
37 | kernel_image_start: |
- | 38 | ||
- | 39 | # r10 contains physical address to memmap_t |
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- | 40 | # from boot loader |
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- | 41 | ||
- | 42 | lis r4, 0x80000000@ha |
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- | 43 | addi r4, r4, 0x80000000@l |
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- | 44 | ||
- | 45 | add r10, r10, r4 |
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- | 46 | ||
- | 47 | lis r4, memmap@ha |
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- | 48 | addi r4, r4, memmap@l # r4 = memmap |
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- | 49 | ||
- | 50 | lwz r5, 0(r10) # memmap->total |
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- | 51 | stw r5, 0(r4) |
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- | 52 | ||
- | 53 | lwzu r5, 4(r10) # memmap->count |
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- | 54 | stwu r5, 4(r4) |
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- | 55 | ||
- | 56 | cmpwi r5, 0 |
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- | 57 | beq memmap_end |
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- | 58 | ||
- | 59 | mtctr r5 |
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- | 60 | memmap_loop: |
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- | 61 | ||
- | 62 | lwzu r5, 4(r10) # memmap->zones[i].start |
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- | 63 | stwu r5, 4(r4) |
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- | 64 | ||
- | 65 | lwzu r5, 4(r10) # memmap->zones[i].size |
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- | 66 | stwu r5, 4(r4) |
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- | 67 | ||
- | 68 | bdnz memmap_loop |
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- | 69 | memmap_end: |
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- | 70 | ||
37 | b main_bsp |
71 | b main_bsp |