diff options
Diffstat (limited to 'arch/mips/kernel/smp-bmips.c')
| -rw-r--r-- | arch/mips/kernel/smp-bmips.c | 34 |
1 files changed, 29 insertions, 5 deletions
diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c index b6ef5f7312cf..35b8d810833c 100644 --- a/arch/mips/kernel/smp-bmips.c +++ b/arch/mips/kernel/smp-bmips.c @@ -26,6 +26,7 @@ #include <linux/bug.h> #include <linux/kernel.h> #include <linux/kexec.h> +#include <linux/irq.h> #include <asm/time.h> #include <asm/processor.h> @@ -53,6 +54,8 @@ static void bmips_set_reset_vec(int cpu, u32 val); #ifdef CONFIG_SMP +#include <asm/smp.h> + /* initial $sp, $gp - used by arch/mips/kernel/bmips_vec.S */ unsigned long bmips_smp_boot_sp; unsigned long bmips_smp_boot_gp; @@ -373,7 +376,7 @@ static int bmips_cpu_disable(void) set_cpu_online(cpu, false); calculate_cpu_foreign_map(); - irq_cpu_offline(); + irq_migrate_all_off_this_cpu(); clear_c0_status(IE_IRQ5); local_flush_tlb_all(); @@ -389,6 +392,7 @@ static void bmips_cpu_die(unsigned int cpu) void __ref play_dead(void) { idle_task_exit(); + cpuhp_ap_report_dead(); /* flush data cache */ _dma_cache_wback_inv(0, ~0); @@ -412,6 +416,8 @@ void __ref play_dead(void) " wait\n" " j bmips_secondary_reentry\n" : : : "memory"); + + BUG(); } #endif /* CONFIG_HOTPLUG_CPU */ @@ -428,7 +434,7 @@ const struct plat_smp_ops bmips43xx_smp_ops = { .cpu_disable = bmips_cpu_disable, .cpu_die = bmips_cpu_die, #endif -#ifdef CONFIG_KEXEC +#ifdef CONFIG_KEXEC_CORE .kexec_nonboot_cpu = kexec_nonboot_cpu_jump, #endif }; @@ -445,7 +451,7 @@ const struct plat_smp_ops bmips5000_smp_ops = { .cpu_disable = bmips_cpu_disable, .cpu_die = bmips_cpu_die, #endif -#ifdef CONFIG_KEXEC +#ifdef CONFIG_KEXEC_CORE .kexec_nonboot_cpu = kexec_nonboot_cpu_jump, #endif }; @@ -512,7 +518,7 @@ static void bmips_set_reset_vec(int cpu, u32 val) info.val = val; bmips_set_reset_vec_remote(&info); } else { - void __iomem *cbr = BMIPS_GET_CBR(); + void __iomem *cbr = bmips_cbr_addr; if (cpu == 0) __raw_writel(val, cbr + BMIPS_RELO_VECTOR_CONTROL_0); @@ -585,7 +591,8 @@ asmlinkage void __weak plat_wired_tlb_setup(void) void bmips_cpu_setup(void) { - void __iomem __maybe_unused *cbr = BMIPS_GET_CBR(); + void __iomem __maybe_unused *cbr = bmips_cbr_addr; + u32 __maybe_unused rac_addr; u32 __maybe_unused cfg; switch (current_cpu_type()) { @@ -614,6 +621,23 @@ void bmips_cpu_setup(void) __raw_readl(cbr + BMIPS_RAC_ADDRESS_RANGE); break; + case CPU_BMIPS4350: + rac_addr = BMIPS_RAC_CONFIG_1; + + if (!(read_c0_brcm_cmt_local() & (1 << 31))) + rac_addr = BMIPS_RAC_CONFIG; + + /* Enable data RAC */ + cfg = __raw_readl(cbr + rac_addr); + __raw_writel(cfg | 0xf, cbr + rac_addr); + __raw_readl(cbr + rac_addr); + + /* Flush stale data out of the readahead cache */ + cfg = __raw_readl(cbr + BMIPS_RAC_CONFIG); + __raw_writel(cfg | 0x100, cbr + BMIPS_RAC_CONFIG); + __raw_readl(cbr + BMIPS_RAC_CONFIG); + break; + case CPU_BMIPS4380: /* CBG workaround for early BMIPS4380 CPUs */ switch (read_c0_prid()) { |