WebSVN – HelenOS – Diff – /trunk/kernel/arch/ia64/src/start.S

 #include <arch/mm/page.h>
 #include <arch/mm/asid.h>
 #include <mm/asid.h>
 #define RR_MASK (0xFFFFFFFF00000002)
-#define RID_SHIFT 8
+#define RID_SHIFT	8
-#define PS_SHIFT 2
+#define PS_SHIFT	2
-#define KERNEL_TRANSLATION_I  0x0010000000000661
-#define KERNEL_TRANSLATION_D  0x0010000000000661
-#define KERNEL_TRANSLATION_VIO 0x0010000000000671
-#define KERNEL_TRANSLATION_IO 0x00100FFFFC000671
-#define KERNEL_TRANSLATION_FW 0x00100000F0000671
+#define KERNEL_TRANSLATION_I	0x0010000000000661
+#define KERNEL_TRANSLATION_D	0x0010000000000661
+#define KERNEL_TRANSLATION_VIO	0x0010000000000671
+#define KERNEL_TRANSLATION_IO	0x00100FFFFC000671
+#define KERNEL_TRANSLATION_FW	0x00100000F0000671
 .section K_TEXT_START, "ax"
 .global kernel_image_start
 stack0:
 kernel_image_start:
 	.auto
-#identifi self(CPU) in OS structures by ID / EID
+	# Identify self(CPU) in OS structures by ID / EID
-	mov r9=cr64
-	mov r10=1
-	movl r12=0xffffffff
-	movl r8=cpu_by_id_eid_list
-	and r8=r8,r12
-	shr r9=r9,16
-	add r8=r8,r9
-	st1 [r8]=r10
+	mov r9 = cr64
+	mov r10 = 1
+	movl r12 = 0xffffffff
+	movl r8 = cpu_by_id_eid_list
+	and r8 = r8, r12
+	shr r9 = r9, 16
+	add r8 = r8, r9
+	st1 [r8] = r10
 	mov psr.l = r0
 	srlz.i
 	srlz.d
 	# Fill TR.i and TR.d using Region Register #VRN_KERNEL
 	movl r8 = (VRN_KERNEL << VRN_SHIFT)
 	mov r9 = rr[r8]
 	movl r10 = (RR_MASK)
 	and r9 = r10, r9
 	movl r10 = ((RID_KERNEL << RID_SHIFT) | (KERNEL_PAGE_WIDTH << PS_SHIFT))
 	or  r9 = r10, r9
 	mov rr[r8] = r9
 	movl r8 = (VRN_KERNEL << VRN_SHIFT)
 	mov cr.ifa = r8
 	mov r11 = cr.itir ;;
 	movl r10 = (KERNEL_PAGE_WIDTH << PS_SHIFT);;
-	or r10 =r10 , r11  ;;
+	or r10 = r10, r11 ;;
 	mov cr.itir = r10;;
 	movl r10 = (KERNEL_TRANSLATION_I)
 	itr.i itr[r0] = r10
 	movl r10 = (KERNEL_TRANSLATION_D)
 	itr.d dtr[r0] = r10
 	movl r7 = 1
 	movl r8 = (VRN_KERNEL << VRN_SHIFT) | VIO_OFFSET
 	mov cr.ifa = r8
 	movl r10 = (KERNEL_TRANSLATION_VIO)
 	itr.d dtr[r7] = r10
 	mov r11 = cr.itir ;;
 	movl r10 = ~0xfc;;
-	and r10 =r10 , r11  ;;
+	and r10 = r10, r11 ;;
 	movl r11 = (IO_PAGE_WIDTH << PS_SHIFT);;
-	or r10 =r10 , r11  ;;
+	or r10 = r10, r11 ;;
 	mov cr.itir = r10;;
 	movl r7 = 2
 	movl r8 = (VRN_KERNEL << VRN_SHIFT) | IO_OFFSET
 	mov cr.ifa = r8
 	movl r10 = (KERNEL_TRANSLATION_IO)
 	itr.d dtr[r7] = r10
+	# Setup mapping for fimware arrea (also SAPIC)
-#setup mapping for fimware arrea (also SAPIC)
 	mov r11 = cr.itir ;;
 	movl r10 = ~0xfc;;
-	and r10 =r10 , r11  ;;
+	and r10 = r10, r11 ;;
 	movl r11 = (FW_PAGE_WIDTH << PS_SHIFT);;
-	or r10 =r10 , r11  ;;
+	or r10 = r10, r11 ;;
 	mov cr.itir = r10;;
 	movl r7 = 3
 	movl r8 = (VRN_KERNEL << VRN_SHIFT) | FW_OFFSET
 	mov cr.ifa = r8
 	movl r10 = (KERNEL_TRANSLATION_FW)
 	itr.d dtr[r7] = r10
+	# Initialize PSR
-	# initialize PSR
 	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
 	mov cr.ifs = r0
 	movl r8 = paging_start
 	mov cr.iip = r8
 	srlz.d
 	srlz.i
 	.explicit
 	/*
 	 * Return From Interupt is the only the way to fill upper half word of PSR.
 	 */
 	rfi;;
 .global paging_start
 paging_start:
 	/*
 	 * Now we are paging.
 	 */
-	# switch to register bank 1
+	# Switch to register bank 1
 	bsw.1
-#Am'I BSP or AP
+	# Am I BSP or AP?
-	movl r20=bsp_started;;
+	movl r20 = bsp_started;;
-	ld8 r20=[r20];;
+	ld8 r20 = [r20];;
-	cmp.eq p3,p2=r20,r0;;
+	cmp.eq p3, p2 = r20, r0;;
-	# initialize register stack
+	# Initialize register stack
 	mov ar.rsc = r0
 	movl r8 = (VRN_KERNEL << VRN_SHIFT) ;;
 	mov ar.bspstore = r8
 	loadrs
-	# initialize memory stack to some sane value
+	# Initialize memory stack to some sane value
 	movl r12 = stack0 ;;
 	add r12 = -16, r12	/* allocate a scratch area on the stack */
-	# initialize gp (Global Pointer) register
+	# Initialize gp (Global Pointer) register
 	movl r20 = (VRN_KERNEL << VRN_SHIFT);;
 	or r20 = r20,r1;;
 	movl r1 = _hardcoded_load_address
 	/*
 (p2)	movl r18 = main_ap ;;
 (p2)   	mov b1 = r18 ;;
 (p2)	br.call.sptk.many b0 = b1
-#Mark that BSP is on
+	# Mark that BSP is on
 	mov r20=1;;
 	movl r21=bsp_started;;
 	st8 [r21]=r20;;
 	br.call.sptk.many b0 = arch_pre_main
 	movl r18 = main_bsp ;;
 	mov b1 = r18 ;;
 	br.call.sptk.many b0 = b1
 :
 	br 0b
 .align 4096
 kernel_image_ap_start:
 	.auto
-#identifi self(CPU) in OS structures by ID / EID
+	# Identify self(CPU) in OS structures by ID / EID
-	mov r9=cr64
+	mov r9 = cr64
-	mov r10=1
+	mov r10 = 1
-	movl r12=0xffffffff
+	movl r12 = 0xffffffff
-	movl r8=cpu_by_id_eid_list
+	movl r8 = cpu_by_id_eid_list
-	and r8=r8,r12
+	and r8 = r8, r12
-	shr r9=r9,16
+	shr r9 = r9, 16
-	add r8=r8,r9
+	add r8 = r8, r9
-	st1 [r8]=r10
+	st1 [r8] = r10
-#wait for wakeup sychro signal (#3 in cpu_by_id_eid_list)
+	# Wait for wakeup synchro signal (#3 in cpu_by_id_eid_list)
 kernel_image_ap_start_loop:
-	movl r11=kernel_image_ap_start_loop
+	movl r11 = kernel_image_ap_start_loop
-	and r11=r11,r12
+	and r11 = r11, r12
    	mov b1 = r11
-	ld1 r20=[r8];;
+	ld1 r20 = [r8];;
-	movl r21=3;;
+	movl r21 = 3;;
-	cmp.eq p2,p3=r20,r21;;
+	cmp.eq p2, p3 = r20, r21;;
-(p3)br.call.sptk.many b0 = b1
+(p3)	br.call.sptk.many b0 = b1
-	movl r11=kernel_image_start
+	movl r11 = kernel_image_start
-	and r11=r11,r12
+	and r11 = r11, r12
-    mov b1 = r11
+	mov b1 = r11
 	br.call.sptk.many b0 = b1
 .align 16
 .global bsp_started
 bsp_started:
 .space 8
 .align 4096
 .global cpu_by_id_eid_list
 cpu_by_id_eid_list:
 .space 65536

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/ia64/src/start.S – Rev 3578 → 3766