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      1 /*
      2  * Copyright (c) 2014-2015, ARM Limited and Contributors. All rights reserved.
      3  *
      4  * SPDX-License-Identifier: BSD-3-Clause
      5  */
      6 
      7 #include <cci.h>
      8 #include <gic_common.h>
      9 #include <gicv2.h>
     10 #include <mt8173_def.h>
     11 
     12 .section .rodata.gic_reg_name, "aS"
     13 gicc_regs:
     14 	.asciz "gicc_hppir", "gicc_ahppir", "gicc_ctlr", ""
     15 gicd_pend_reg:
     16 	.asciz "gicd_ispendr regs (Offsets 0x200 - 0x278)\n"	\
     17 		" Offset:\t\t\tvalue\n"
     18 newline:
     19 	.asciz "\n"
     20 spacer:
     21 	.asciz ":\t\t0x"
     22 
     23 .section .rodata.cci_reg_name, "aS"
     24 cci_iface_regs:
     25 	.asciz "cci_snoop_ctrl_cluster0", "cci_snoop_ctrl_cluster1" , ""
     26 
     27 	/* ---------------------------------------------
     28 	 * The below macro prints out relevant GIC and
     29 	 * CCI registers whenever an unhandled exception
     30 	 * is taken in BL3-1.
     31 	 * Clobbers: x0 - x10, x16, x17, sp
     32 	 * ---------------------------------------------
     33 	 */
     34 	.macro plat_crash_print_regs
     35 	mov_imm x16, BASE_GICD_BASE
     36 	mov_imm x17, BASE_GICC_BASE
     37 	/* Load the gicc reg list to x6 */
     38 	adr	x6, gicc_regs
     39 	/* Load the gicc regs to gp regs used by str_in_crash_buf_print */
     40 	ldr	w8, [x17, #GICC_HPPIR]
     41 	ldr	w9, [x17, #GICC_AHPPIR]
     42 	ldr	w10, [x17, #GICC_CTLR]
     43 	/* Store to the crash buf and print to console */
     44 	bl	str_in_crash_buf_print
     45 
     46 	/* Print the GICD_ISPENDR regs */
     47 	add	x7, x16, #GICD_ISPENDR
     48 	adr	x4, gicd_pend_reg
     49 	bl	asm_print_str
     50 gicd_ispendr_loop:
     51 	sub	x4, x7, x16
     52 	cmp	x4, #0x280
     53 	b.eq	exit_print_gic_regs
     54 	bl	asm_print_hex
     55 
     56 	adr	x4, spacer
     57 	bl	asm_print_str
     58 
     59 	ldr	x4, [x7], #8
     60 	bl	asm_print_hex
     61 
     62 	adr	x4, newline
     63 	bl	asm_print_str
     64 	b	gicd_ispendr_loop
     65 exit_print_gic_regs:
     66 
     67 	adr	x6, cci_iface_regs
     68 	/* Store in x7 the base address of the first interface */
     69 	mov_imm	x7, (PLAT_MT_CCI_BASE + SLAVE_IFACE_OFFSET(	\
     70 			PLAT_MT_CCI_CLUSTER0_SL_IFACE_IX))
     71 	ldr	w8, [x7, #SNOOP_CTRL_REG]
     72 	/* Store in x7 the base address of the second interface */
     73 	mov_imm	x7, (PLAT_MT_CCI_BASE + SLAVE_IFACE_OFFSET(	\
     74 			PLAT_MT_CCI_CLUSTER1_SL_IFACE_IX))
     75 	ldr	w9, [x7, #SNOOP_CTRL_REG]
     76 	/* Store to the crash buf and print to console */
     77 	bl	str_in_crash_buf_print
     78 	.endm
     79