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lib: Remove prints from sbi_hart_switch_mode()
The sbi_hart_switch_mode() will be used by CPU hotplug. This means if we have prints in sbi_hart_switch_mode() then these prints will mix with Linux prints. Being a runtime firmware, we should be verbose only at coldboot time and error situations. Signed-off-by: Anup Patel <anup.patel@wdc.com>
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1bfa244505
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a18913200a
1 changed files with 1 additions and 8 deletions
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@ -209,7 +209,7 @@ int sbi_hart_init(struct sbi_scratch *scratch, u32 hartid)
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void __attribute__((noreturn)) sbi_hart_hang(void)
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{
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sbi_printf("\nHART %u Hang !!\n\n", sbi_current_hartid());
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sbi_printf("\nHART%u Hang !!\n\n", sbi_current_hartid());
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while (1)
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wfi();
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@ -222,7 +222,6 @@ void __attribute__((noreturn)) sbi_hart_switch_mode(unsigned long arg0,
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unsigned long next_mode)
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{
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unsigned long val;
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char mode = 'M';
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switch (next_mode) {
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case PRV_M:
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@ -236,7 +235,6 @@ void __attribute__((noreturn)) sbi_hart_switch_mode(unsigned long arg0,
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sbi_hart_hang();
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break;
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default:
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sbi_printf("\nTrying to switch to unsupported mode\n");
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sbi_hart_hang();
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}
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@ -248,21 +246,16 @@ void __attribute__((noreturn)) sbi_hart_switch_mode(unsigned long arg0,
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csr_write(mepc, next_addr);
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if (next_mode == PRV_S) {
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mode = 'S';
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csr_write(stvec, next_addr);
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csr_write(sscratch, 0);
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csr_write(sie, 0);
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csr_write(satp, 0);
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} else if (next_mode == PRV_U) {
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mode = 'U';
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csr_write(utvec, next_addr);
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csr_write(uscratch, 0);
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csr_write(uie, 0);
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}
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sbi_printf("HART %u switching to %c-mode...\n\n",
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sbi_current_hartid(), mode);
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register unsigned long a0 asm ("a0") = arg0;
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register unsigned long a1 asm ("a1") = arg1;
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__asm__ __volatile__ ("mret" : : "r" (a0), "r" (a1));
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