diff --git a/bl31/aarch64/crash_reporting.S b/bl31/aarch64/crash_reporting.S index e69878b..68fe256 100644 --- a/bl31/aarch64/crash_reporting.S +++ b/bl31/aarch64/crash_reporting.S @@ -52,9 +52,6 @@ print_spacer: .asciz " =\t\t0x" -cpu_ectlr_reg: - .asciz "cpuectlr_el1 =\t\t0x" - gp_regs: .asciz "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7",\ "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15",\ @@ -337,21 +334,9 @@ mrs x10, sp_el0 bl str_in_crash_buf_print - /* Print the CPUECTLR_EL1 reg */ - mrs x0, midr_el1 - lsr x0, x0, #MIDR_PN_SHIFT - and x0, x0, #MIDR_PN_MASK - cmp x0, #MIDR_PN_A57 - b.eq 1f - cmp x0, #MIDR_PN_A53 - b.ne 2f -1: - adr x4, cpu_ectlr_reg - bl asm_print_str - mrs x4, CPUECTLR_EL1 - bl asm_print_hex - bl print_newline -2: + /* Get the cpu specific registers to report */ + bl do_cpu_reg_dump + bl str_in_crash_buf_print /* Print the gic registers */ plat_print_gic_regs diff --git a/include/lib/aarch64/arch.h b/include/lib/aarch64/arch.h index 333dcf1..97242cc 100644 --- a/include/lib/aarch64/arch.h +++ b/include/lib/aarch64/arch.h @@ -39,9 +39,6 @@ #define MIDR_IMPL_SHIFT 0x18 #define MIDR_PN_MASK 0xfff #define MIDR_PN_SHIFT 0x4 -#define MIDR_PN_AEM 0xd0f -#define MIDR_PN_A57 0xd07 -#define MIDR_PN_A53 0xd03 /******************************************************************************* * MPIDR macros @@ -77,11 +74,6 @@ #define ICC_PMR_EL1 S3_0_C4_C6_0 /******************************************************************************* - * Implementation defined sysreg encodings - ******************************************************************************/ -#define CPUECTLR_EL1 S3_1_C15_C2_1 - -/******************************************************************************* * Generic timer memory mapped registers & offsets ******************************************************************************/ #define CNTCR_OFF 0x000 diff --git a/include/lib/cpus/aarch64/cortex_a53.h b/include/lib/cpus/aarch64/cortex_a53.h index dcae411..14821ab 100644 --- a/include/lib/cpus/aarch64/cortex_a53.h +++ b/include/lib/cpus/aarch64/cortex_a53.h @@ -37,6 +37,8 @@ /******************************************************************************* * CPU Extended Control register specific definitions. ******************************************************************************/ +#define CPUECTLR_EL1 S3_1_C15_C2_1 /* Instruction def. */ + #define CPUECTLR_SMP_BIT (1 << 6) #endif /* __CORTEX_A53_H__ */ diff --git a/include/lib/cpus/aarch64/cortex_a57.h b/include/lib/cpus/aarch64/cortex_a57.h index cf887d0..dc0e0f4 100644 --- a/include/lib/cpus/aarch64/cortex_a57.h +++ b/include/lib/cpus/aarch64/cortex_a57.h @@ -37,6 +37,8 @@ /******************************************************************************* * CPU Extended Control register specific definitions. ******************************************************************************/ +#define CPUECTLR_EL1 S3_1_C15_C2_1 /* Instruction def. */ + #define CPUECTLR_SMP_BIT (1 << 6) #define CPUECTLR_DIS_TWD_ACC_PFTCH_BIT (1 << 38) #define CPUECTLR_L2_IPFTCH_DIST_MASK (0x3 << 35) diff --git a/include/lib/cpus/aarch64/cpu_macros.S b/include/lib/cpus/aarch64/cpu_macros.S index abe8973..65fb82d 100644 --- a/include/lib/cpus/aarch64/cpu_macros.S +++ b/include/lib/cpus/aarch64/cpu_macros.S @@ -50,6 +50,10 @@ CPU_PWR_DWN_CLUSTER: /* cpu_ops cluster_pwr_dwn */ .space 8 #endif +#if (IMAGE_BL31 && CRASH_REPORTING) +CPU_REG_DUMP: /* cpu specific register dump for crash reporting */ + .space 8 +#endif CPU_OPS_SIZE = . /* @@ -72,4 +76,7 @@ .quad \_name\()_core_pwr_dwn .quad \_name\()_cluster_pwr_dwn #endif +#if (IMAGE_BL31 && CRASH_REPORTING) + .quad \_name\()_cpu_reg_dump +#endif .endm diff --git a/lib/cpus/aarch64/aem_generic.S b/lib/cpus/aarch64/aem_generic.S index 19c9433..58a64a6 100644 --- a/lib/cpus/aarch64/aem_generic.S +++ b/lib/cpus/aarch64/aem_generic.S @@ -68,6 +68,19 @@ mov x0, #DCCISW b dcsw_op_all + /* --------------------------------------------- + * This function provides cpu specific + * register information for crash reporting. + * It needs to return with x6 pointing to + * a list of register names in ascii and + * x8 - x15 having values of registers to be + * reported. + * --------------------------------------------- + */ +func aem_generic_cpu_reg_dump + mov x6, #0 /* no registers to report */ + ret + /* cpu_ops for Base AEM FVP */ declare_cpu_ops aem_generic, BASE_AEM_MIDR, 1 diff --git a/lib/cpus/aarch64/cortex_a53.S b/lib/cpus/aarch64/cortex_a53.S index 08cc938..722ce7a 100644 --- a/lib/cpus/aarch64/cortex_a53.S +++ b/lib/cpus/aarch64/cortex_a53.S @@ -119,4 +119,22 @@ mov x30, x18 b cortex_a53_disable_smp + /* --------------------------------------------- + * This function provides cortex_a53 specific + * register information for crash reporting. + * It needs to return with x6 pointing to + * a list of register names in ascii and + * x8 - x15 having values of registers to be + * reported. + * --------------------------------------------- + */ +.section .rodata.cortex_a53_regs, "aS" +cortex_a53_regs: /* The ascii list of register names to be reported */ + .asciz "cpuectlr_el1", "" + +func cortex_a53_cpu_reg_dump + adr x6, cortex_a53_regs + mrs x8, CPUECTLR_EL1 + ret + declare_cpu_ops cortex_a53, CORTEX_A53_MIDR diff --git a/lib/cpus/aarch64/cortex_a57.S b/lib/cpus/aarch64/cortex_a57.S index 8de7fe9..8b78856 100644 --- a/lib/cpus/aarch64/cortex_a57.S +++ b/lib/cpus/aarch64/cortex_a57.S @@ -167,4 +167,23 @@ mov x30, x18 b cortex_a57_disable_ext_debug + /* --------------------------------------------- + * This function provides cortex_a57 specific + * register information for crash reporting. + * It needs to return with x6 pointing to + * a list of register names in ascii and + * x8 - x15 having values of registers to be + * reported. + * --------------------------------------------- + */ +.section .rodata.cortex_a57_regs, "aS" +cortex_a57_regs: /* The ascii list of register names to be reported */ + .asciz "cpuectlr_el1", "" + +func cortex_a57_cpu_reg_dump + adr x6, cortex_a57_regs + mrs x8, CPUECTLR_EL1 + ret + + declare_cpu_ops cortex_a57, CORTEX_A57_MIDR diff --git a/lib/cpus/aarch64/cpu_helpers.S b/lib/cpus/aarch64/cpu_helpers.S index 624a459..46584b3 100644 --- a/lib/cpus/aarch64/cpu_helpers.S +++ b/lib/cpus/aarch64/cpu_helpers.S @@ -125,6 +125,30 @@ ret #endif /* IMAGE_BL31 */ +#if IMAGE_BL31 && CRASH_REPORTING + /* + * The cpu specific registers which need to be reported in a crash + * are reported via cpu_ops cpu_reg_dump function. After a matching + * cpu_ops structure entry is found, the correponding cpu_reg_dump + * in the cpu_ops is invoked. + */ + .globl do_cpu_reg_dump +func do_cpu_reg_dump + mov x16, x30 + + /* Get the matching cpu_ops pointer */ + bl get_cpu_ops_ptr + cbz x0, 1f + + /* Get the cpu_ops cpu_reg_dump */ + ldr x2, [x0, #CPU_REG_DUMP] + cbz x2, 1f + blr x2 +1: + mov x30, x16 + ret +#endif + /* * The below function returns the cpu_ops structure matching the * midr of the core. It reads the MIDR_EL1 and finds the matching