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Line 65... Line 65...
65 
kernel_image_start:
 65 
kernel_image_start:
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	mov BSP_FLAG, %l0
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	mov BSP_FLAG, %l0
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	and %o0, %l0, %l7				! l7 <= bootstrap processor?
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	and %o0, %l0, %l7				! l7 <= bootstrap processor?
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	andn %o0, %l0, %l6				! l6 <= start of physical memory
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	andn %o0, %l0, %l6				! l6 <= start of physical memory
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	sethi %hi(physmem_base), %l5
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	stx %l6, [%l5 + %lo(physmem_base)]
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 - 
 
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	/*
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	 * Get bits 40:13 of physmem_base.
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	! Get bits 40:13 of physmem_base.
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	 */
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	sethi %hi(mask_40_13), %l4
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	srlx %l6, 13, %l5
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	sethi %hi(physmem_base_40_13), %l3
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	ldx [%l4 + %lo(mask_40_13)], %l4
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	sllx %l5, 13 + (63 - 40), %l5
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	and %l6, %l4, %l5				! l5 <= physmem_base[40:13]
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	srlx %l5, 63 - 40, %l5				! l5 <= physmem_base[40:13]
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	stx %l5, [%l3 + %lo(physmem_base_40_13)]
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	/*
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	 * Prepare kernel 8K TLB data template.
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	 */
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	sethi %hi(kernel_8k_tlb_data_template), %l4
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	ldx [%l4 + %lo(kernel_8k_tlb_data_template)], %l3
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	or %l3, %l5, %l3
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	stx %l3, [%l4 + %lo(kernel_8k_tlb_data_template)]
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74
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	/*
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	/*
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	 * Setup basic runtime environment.
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	 * Setup basic runtime environment.
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	 */
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	 */
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	brz %l7, 1f				! skip if you are not the bootstrap CPU
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	brz %l7, 1f				! skip if you are not the bootstrap CPU
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	nop
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	nop
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	/*
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	/*
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	 * Save physmem_base for use by the mm subsystem.
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	 * %l6 contains starting physical address
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	 */
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	sethi %hi(physmem_base), %l4
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	stx %l6, [%l4 + %lo(physmem_base)]
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- 
 
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	/*
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	 * Precompute kernel 8K TLB data template.
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	 * %l5 contains starting physical address bits [40:13]
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	 */
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	sethi %hi(kernel_8k_tlb_data_template), %l4
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	ldx [%l4 + %lo(kernel_8k_tlb_data_template)], %l3
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	or %l3, %l5, %l3
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	stx %l3, [%l4 + %lo(kernel_8k_tlb_data_template)]
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 246 
 
- 
 
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	/*
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	 * So far, we have not touched the stack.
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	 * So far, we have not touched the stack.
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	 * It is a good idea to set the kernel stack to a known state now.
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	 * It is a good idea to set the kernel stack to a known state now.
249 
	 */
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	 */
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	sethi %hi(temporary_boot_stack), %sp
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	sethi %hi(temporary_boot_stack), %sp
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	or %sp, %lo(temporary_boot_stack), %sp
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	or %sp, %lo(temporary_boot_stack), %sp
Line 338... Line 339...
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.align 8
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.align 8
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.global physmem_base		! copy of the physical memory base address
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.global physmem_base		! copy of the physical memory base address
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physmem_base:
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physmem_base:
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	.quad 0
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	.quad 0
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.global physmem_base_40_13
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physmem_base_40_13:		! physmem_base & mask_40_13
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	.quad 0
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.global mask_40_13
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mask_40_13:			! constant with bits 40:13 set
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	.quad (((1 << 41) - 1) & ~((1 << 13) - 1))
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351 
/*
 344 
/*
352 
 * This variable is used by the fast_data_MMU_miss trap handler.
 345 
 * This variable is used by the fast_data_MMU_miss trap handler.
353 
 * It is initialized to reflect the starting address of physical
 346 
 * In runtime, it is further modified to reflect the starting address of
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 * memory.
 347 
 * physical memory.
355 
 */
 348 
 */
356 
.global kernel_8k_tlb_data_template
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.global kernel_8k_tlb_data_template
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kernel_8k_tlb_data_template:
 350 
kernel_8k_tlb_data_template:
358 
	.quad ((1 << TTE_V_SHIFT) | TTE_CV | TTE_CP | TTE_P | TTE_W)
 351 
	.quad ((1 << TTE_V_SHIFT) | TTE_CV | TTE_CP | TTE_P | TTE_W)
359 
 
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