26,18 → 26,22 |
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
# |
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#include <arch/register.h> |
#include <arch/mm/page.h> |
#include <arch/mm/asid.h> |
#include <mm/asid.h> |
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#define RR_MASK (0xFFFFFFFF00000002) |
#define RID_SHIFT 8 |
#define PS_SHIFT 2 |
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#define KERNEL_TRANSLATION_I 0x0010000000000661 |
#define KERNEL_TRANSLATION_D 0x0010000000000661 |
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.section K_TEXT_START |
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.global kernel_image_start |
46,7 → 50,7 |
kernel_image_start: |
.auto |
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# Fill TR.i and TR.d using Region Register #VRN_KERNEL |
#Fill TR.i and TR.d using Region Register #VRN_KERNEL |
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movl r8=(VRN_KERNEL<<VRN_SHIFT) |
mov r9=rr[r8] |
56,6 → 60,7 |
or r9=r10,r9 |
mov rr[r8]=r9 |
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movl r8=(VRN_KERNEL<<VRN_SHIFT) |
mov cr.ifa=r8 |
movl r10=(KERNEL_PAGE_WIDTH<<PS_SHIFT) |
62,14 → 67,16 |
mov cr.itir=r10 |
movl r10=(KERNEL_TRANSLATION_I) |
itr.i itr[r0]=r10 |
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movl r10=(KERNEL_TRANSLATION_D) |
itr.d dtr[r0]=r10 |
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# initialize PSR |
mov psr.l = r0 |
srlz.i |
srlz.d |
movl r10=(PSR_DT_MASK|PSR_RT_MASK|PSR_IT_MASK|PSR_IC_MASK) /* Enable paging */ |
movl r10=(PSR_DT_MASK|PSR_RT_MASK|PSR_IT_MASK|PSR_IC_MASK) /*Enable paging*/ |
mov r9=psr |
or r10=r10,r9 |
mov cr.ipsr=r10 |
78,12 → 85,10 |
mov cr.iip=r8 |
srlz.d |
srlz.i |
.explicit |
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.explicit |
/* |
* Return From Interupt is the only the way to fill upper half word of PSR. |
*/ |
rfi;; |
/*Return from interupt is only the way how to fill upper half word of PSR*/ |
{rfi;;} |
{nop 0;;} |
{nop 0;;} |
{nop 0;;} |
94,12 → 99,8 |
{nop 0;;} |
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.global paging_start |
/*Now we are paging*/ |
paging_start: |
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/* |
* Now we are paging. |
*/ |
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{nop 0;;} |
{nop 0;;} |
{nop 0;;} |
109,15 → 110,18 |
{nop 0;;} |
{nop 0;;} |
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.auto |
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# switch to register bank 1 |
bsw.1 |
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# initialize register stack |
mov ar.rsc = r0 |
movl r8=(VRN_KERNEL<<VRN_SHIFT) ;; |
movl r8=(VRN_KERNEL<<VRN_SHIFT) |
mov ar.bspstore = r8 |
loadrs |
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.explicit |
# initialize memory stack to some sane value |
movl r12 = stack0;; |
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126,9 → 130,11 |
# initialize gp (Global Pointer) register |
movl r1 = _hardcoded_load_address ;; |
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/* |
* Initialize hardcoded_* variables. |
*/ |
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# |
# Initialize hardcoded_* variables. |
# |
movl r14 = _hardcoded_ktext_size |
movl r15 = _hardcoded_kdata_size |
movl r16 = _hardcoded_load_address |
140,9 → 146,13 |
st8 [r18] = r15 |
st8 [r19] = r16 |
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movl r18=main_bsp ;; |
mov b1=r18 ;; |
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.auto |
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movl r18=main_bsp |
mov b1=r18 |
br.call.sptk.many b0=b1 |
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0: |
br 0b |