Firmware/opensbi
8
0
Fork 0
forked from Mirrors/opensbi
Code Pull Requests Activity

lib: Print interrupt and exception delegation in boot prints

Browse Source 
We print MIDELEG and MEDELEG CSRs as part of boot prints so that
boot log shows the interrupts and exceptions delegated to S-mode.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
This commit is contained in:
Anup Patel
2020-02-18 11:53:52 +05:30
committed by Anup Patel
parent bc874e34ce
commit 24c3082ea4
3 changed files with 15 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
include/sbi/sbi_hart.h
View File

@@ -20,6 +20,7 @@ void *sbi_hart_get_trap_info(struct sbi_scratch *scratch);
void sbi_hart_set_trap_info(struct sbi_scratch *scratch, void *data);
void sbi_hart_delegation_dump(struct sbi_scratch *scratch);
void sbi_hart_pmp_dump(struct sbi_scratch *scratch);
void __attribute__((noreturn)) sbi_hart_hang(void);

15
lib/sbi/sbi_hart.c
View File

@@ -107,6 +107,17 @@ static int delegate_traps(struct sbi_scratch *scratch, u32 hartid)
return 0;
}
void sbi_hart_delegation_dump(struct sbi_scratch *scratch)
{
#if __riscv_xlen == 32
sbi_printf("MIDELEG : 0x%08lx\n", csr_read(CSR_MIDELEG));
sbi_printf("MEDELEG : 0x%08lx\n", csr_read(CSR_MEDELEG));
#else
sbi_printf("MIDELEG : 0x%016lx\n", csr_read(CSR_MIDELEG));
sbi_printf("MEDELEG : 0x%016lx\n", csr_read(CSR_MEDELEG));
#endif
}
unsigned long log2roundup(unsigned long x)
{
unsigned long ret = 0;
@@ -138,9 +149,9 @@ void sbi_hart_pmp_dump(struct sbi_scratch *scratch)
else
size = 0;
#if __riscv_xlen == 32
sbi_printf("PMP%d: 0x%08lx-0x%08lx (A",
sbi_printf("PMP%d : 0x%08lx-0x%08lx (A",
#else
sbi_printf("PMP%d: 0x%016lx-0x%016lx (A",
sbi_printf("PMP%d : 0x%016lx-0x%016lx (A",
#endif
i, addr, addr + size - 1);
if (prot & PMP_L)

1
lib/sbi/sbi_init.c
View File

@@ -68,6 +68,7 @@ static void sbi_boot_prints(struct sbi_scratch *scratch, u32 hartid)
sbi_ecall_version_major(), sbi_ecall_version_minor());
sbi_printf("\n");
sbi_hart_delegation_dump(scratch);
sbi_hart_pmp_dump(scratch);
}