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Differential D25151 Diff 72814 head/sys/riscv/riscv/locore.S

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head/sys/riscv/riscv/locore.S

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mulw a5, a5, a6 mulw a5, a5, a6
add t0, s1, a5 add t0, s1, a5
sd t6, (t0) sd t6, (t0)
/* Create an L2 page superpage for DTB */ /* Create an L2 page superpage for DTB */
lla s1, pagetable_l2_devmap lla s1, pagetable_l2_devmap
mv s2, a1 mv s2, a1
srli s2, s2, PAGE_SHIFT srli s2, s2, PAGE_SHIFT
/* Mask off any bits that aren't aligned */
andi s2, s2, ~((1 << (PTE_PPN1_S - PTE_PPN0_S)) - 1)
li t0, (PTE_KERN) li t0, (PTE_KERN)
slli t2, s2, PTE_PPN0_S /* << PTE_PPN0_S */ slli t2, s2, PTE_PPN0_S /* << PTE_PPN0_S */
or t0, t0, t2 or t0, t0, t2
/* Store PTE entry to position */ /* Store PTE entry to position */
li a6, PTE_SIZE li a6, PTE_SIZE
li a5, 510 li a5, 510
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la t0, pagetable_l1 la t0, pagetable_l1
sd t0, RISCV_BOOTPARAMS_KERN_L1PT(sp) sd t0, RISCV_BOOTPARAMS_KERN_L1PT(sp)
sd s9, RISCV_BOOTPARAMS_KERN_PHYS(sp) sd s9, RISCV_BOOTPARAMS_KERN_PHYS(sp)
la t0, initstack la t0, initstack
sd t0, RISCV_BOOTPARAMS_KERN_STACK(sp) sd t0, RISCV_BOOTPARAMS_KERN_STACK(sp)
li t0, (VM_EARLY_DTB_ADDRESS) li t0, (VM_EARLY_DTB_ADDRESS)
/* Add offset of DTB within superpage */
li t1, (L2_OFFSET)
and t1, a1, t1
add t0, t0, t1
sd t0, RISCV_BOOTPARAMS_DTBP_VIRT(sp) sd t0, RISCV_BOOTPARAMS_DTBP_VIRT(sp)
mv a0, sp mv a0, sp
call _C_LABEL(initriscv) /* Off we go */ call _C_LABEL(initriscv) /* Off we go */
call _C_LABEL(mi_startup) call _C_LABEL(mi_startup)
/* /*
* Get the physical address the kernel is loaded to. Returned in s9. * Get the physical address the kernel is loaded to. Returned in s9.
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