diff options
Diffstat (limited to 'kernel/arch/powerpc/platforms/85xx')
| -rw-r--r-- | kernel/arch/powerpc/platforms/85xx/Kconfig | 2 | ||||
| -rw-r--r-- | kernel/arch/powerpc/platforms/85xx/c293pcie.c | 4 | ||||
| -rw-r--r-- | kernel/arch/powerpc/platforms/85xx/common.c | 2 | ||||
| -rw-r--r-- | kernel/arch/powerpc/platforms/85xx/corenet_generic.c | 16 | ||||
| -rw-r--r-- | kernel/arch/powerpc/platforms/85xx/mpc85xx_cds.c | 5 | ||||
| -rw-r--r-- | kernel/arch/powerpc/platforms/85xx/mpc85xx_ds.c | 2 | ||||
| -rw-r--r-- | kernel/arch/powerpc/platforms/85xx/mpc85xx_mds.c | 2 | ||||
| -rw-r--r-- | kernel/arch/powerpc/platforms/85xx/mpc85xx_rdb.c | 2 | ||||
| -rw-r--r-- | kernel/arch/powerpc/platforms/85xx/p1022_ds.c | 2 | ||||
| -rw-r--r-- | kernel/arch/powerpc/platforms/85xx/p1022_rdk.c | 2 | ||||
| -rw-r--r-- | kernel/arch/powerpc/platforms/85xx/smp.c | 121 | ||||
| -rw-r--r-- | kernel/arch/powerpc/platforms/85xx/socrates_fpga_pic.c | 3 | ||||
| -rw-r--r-- | kernel/arch/powerpc/platforms/85xx/twr_p102x.c | 6 |
13 files changed, 101 insertions, 68 deletions
diff --git a/kernel/arch/powerpc/platforms/85xx/Kconfig b/kernel/arch/powerpc/platforms/85xx/Kconfig index 2fb4b2436..97915feff 100644 --- a/kernel/arch/powerpc/platforms/85xx/Kconfig +++ b/kernel/arch/powerpc/platforms/85xx/Kconfig @@ -282,7 +282,7 @@ config CORENET_GENERIC For 64bit kernel, the following boards are supported: T208x QDS/RDB, T4240 QDS/RDB and B4 QDS The following boards are supported for both 32bit and 64bit kernel: - P5020 DS, P5040 DS and T104xQDS/RDB + P5020 DS, P5040 DS, T102x QDS/RDB, T104x QDS/RDB endif # FSL_SOC_BOOKE diff --git a/kernel/arch/powerpc/platforms/85xx/c293pcie.c b/kernel/arch/powerpc/platforms/85xx/c293pcie.c index 84476b646..61bc851e9 100644 --- a/kernel/arch/powerpc/platforms/85xx/c293pcie.c +++ b/kernel/arch/powerpc/platforms/85xx/c293pcie.c @@ -66,10 +66,6 @@ define_machine(c293_pcie) { .probe = c293_pcie_probe, .setup_arch = c293_pcie_setup_arch, .init_IRQ = c293_pcie_pic_init, -#ifdef CONFIG_PCI - .pcibios_fixup_bus = fsl_pcibios_fixup_bus, - .pcibios_fixup_phb = fsl_pcibios_fixup_phb, -#endif .get_irq = mpic_get_irq, .restart = fsl_rstcr_restart, .calibrate_decr = generic_calibrate_decr, diff --git a/kernel/arch/powerpc/platforms/85xx/common.c b/kernel/arch/powerpc/platforms/85xx/common.c index 7bfb9b184..23791de7b 100644 --- a/kernel/arch/powerpc/platforms/85xx/common.c +++ b/kernel/arch/powerpc/platforms/85xx/common.c @@ -49,7 +49,7 @@ int __init mpc85xx_common_publish_devices(void) return of_platform_bus_probe(NULL, mpc85xx_common_ids, NULL); } #ifdef CONFIG_CPM2 -static void cpm2_cascade(unsigned int irq, struct irq_desc *desc) +static void cpm2_cascade(struct irq_desc *desc) { struct irq_chip *chip = irq_desc_get_chip(desc); int cascade_irq; diff --git a/kernel/arch/powerpc/platforms/85xx/corenet_generic.c b/kernel/arch/powerpc/platforms/85xx/corenet_generic.c index 9824d2cf7..46d05c94a 100644 --- a/kernel/arch/powerpc/platforms/85xx/corenet_generic.c +++ b/kernel/arch/powerpc/platforms/85xx/corenet_generic.c @@ -150,12 +150,18 @@ static const char * const boards[] __initconst = { "fsl,B4860QDS", "fsl,B4420QDS", "fsl,B4220QDS", + "fsl,T1023RDB", + "fsl,T1024QDS", + "fsl,T1024RDB", + "fsl,T1040D4RDB", + "fsl,T1042D4RDB", "fsl,T1040QDS", "fsl,T1042QDS", "fsl,T1040RDB", "fsl,T1042RDB", "fsl,T1042RDB_PI", "keymile,kmcoge4", + "varisys,CYRUS", NULL }; @@ -209,7 +215,17 @@ define_machine(corenet_generic) { .pcibios_fixup_bus = fsl_pcibios_fixup_bus, .pcibios_fixup_phb = fsl_pcibios_fixup_phb, #endif +/* + * Core reset may cause issues if using the proxy mode of MPIC. + * So, use the mixed mode of MPIC if enabling CPU hotplug. + * + * Likewise, problems have been seen with kexec when coreint is enabled. + */ +#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_KEXEC) + .get_irq = mpic_get_irq, +#else .get_irq = mpic_get_coreint_irq, +#endif .restart = fsl_rstcr_restart, .calibrate_decr = generic_calibrate_decr, .progress = udbg_progress, diff --git a/kernel/arch/powerpc/platforms/85xx/mpc85xx_cds.c b/kernel/arch/powerpc/platforms/85xx/mpc85xx_cds.c index b0753e222..5ac70de3e 100644 --- a/kernel/arch/powerpc/platforms/85xx/mpc85xx_cds.c +++ b/kernel/arch/powerpc/platforms/85xx/mpc85xx_cds.c @@ -192,8 +192,7 @@ void mpc85xx_cds_fixup_bus(struct pci_bus *bus) } #ifdef CONFIG_PPC_I8259 -static void mpc85xx_8259_cascade_handler(unsigned int irq, - struct irq_desc *desc) +static void mpc85xx_8259_cascade_handler(struct irq_desc *desc) { unsigned int cascade_irq = i8259_irq(); @@ -202,7 +201,7 @@ static void mpc85xx_8259_cascade_handler(unsigned int irq, generic_handle_irq(cascade_irq); /* check for any interrupts from the shared IRQ line */ - handle_fasteoi_irq(irq, desc); + handle_fasteoi_irq(desc); } static irqreturn_t mpc85xx_8259_cascade_action(int irq, void *dev_id) diff --git a/kernel/arch/powerpc/platforms/85xx/mpc85xx_ds.c b/kernel/arch/powerpc/platforms/85xx/mpc85xx_ds.c index ffdf02121..f858306db 100644 --- a/kernel/arch/powerpc/platforms/85xx/mpc85xx_ds.c +++ b/kernel/arch/powerpc/platforms/85xx/mpc85xx_ds.c @@ -46,7 +46,7 @@ #endif #ifdef CONFIG_PPC_I8259 -static void mpc85xx_8259_cascade(unsigned int irq, struct irq_desc *desc) +static void mpc85xx_8259_cascade(struct irq_desc *desc) { struct irq_chip *chip = irq_desc_get_chip(desc); unsigned int cascade_irq = i8259_irq(); diff --git a/kernel/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/kernel/arch/powerpc/platforms/85xx/mpc85xx_mds.c index a392e94a0..f0be439ce 100644 --- a/kernel/arch/powerpc/platforms/85xx/mpc85xx_mds.c +++ b/kernel/arch/powerpc/platforms/85xx/mpc85xx_mds.c @@ -34,6 +34,7 @@ #include <linux/of_device.h> #include <linux/phy.h> #include <linux/memblock.h> +#include <linux/fsl/guts.h> #include <linux/atomic.h> #include <asm/time.h> @@ -51,7 +52,6 @@ #include <asm/qe_ic.h> #include <asm/mpic.h> #include <asm/swiotlb.h> -#include <asm/fsl_guts.h> #include "smp.h" #include "mpc85xx.h" diff --git a/kernel/arch/powerpc/platforms/85xx/mpc85xx_rdb.c b/kernel/arch/powerpc/platforms/85xx/mpc85xx_rdb.c index e358bed66..50dcc00a0 100644 --- a/kernel/arch/powerpc/platforms/85xx/mpc85xx_rdb.c +++ b/kernel/arch/powerpc/platforms/85xx/mpc85xx_rdb.c @@ -17,6 +17,7 @@ #include <linux/seq_file.h> #include <linux/interrupt.h> #include <linux/of_platform.h> +#include <linux/fsl/guts.h> #include <asm/time.h> #include <asm/machdep.h> @@ -27,7 +28,6 @@ #include <asm/mpic.h> #include <asm/qe.h> #include <asm/qe_ic.h> -#include <asm/fsl_guts.h> #include <sysdev/fsl_soc.h> #include <sysdev/fsl_pci.h> diff --git a/kernel/arch/powerpc/platforms/85xx/p1022_ds.c b/kernel/arch/powerpc/platforms/85xx/p1022_ds.c index 6ac986d3f..371df822e 100644 --- a/kernel/arch/powerpc/platforms/85xx/p1022_ds.c +++ b/kernel/arch/powerpc/platforms/85xx/p1022_ds.c @@ -16,6 +16,7 @@ * kind, whether express or implied. */ +#include <linux/fsl/guts.h> #include <linux/pci.h> #include <linux/of_platform.h> #include <asm/div64.h> @@ -25,7 +26,6 @@ #include <sysdev/fsl_soc.h> #include <sysdev/fsl_pci.h> #include <asm/udbg.h> -#include <asm/fsl_guts.h> #include <asm/fsl_lbc.h> #include "smp.h" diff --git a/kernel/arch/powerpc/platforms/85xx/p1022_rdk.c b/kernel/arch/powerpc/platforms/85xx/p1022_rdk.c index 680232d6b..5087becaa 100644 --- a/kernel/arch/powerpc/platforms/85xx/p1022_rdk.c +++ b/kernel/arch/powerpc/platforms/85xx/p1022_rdk.c @@ -12,6 +12,7 @@ * kind, whether express or implied. */ +#include <linux/fsl/guts.h> #include <linux/pci.h> #include <linux/of_platform.h> #include <asm/div64.h> @@ -21,7 +22,6 @@ #include <sysdev/fsl_soc.h> #include <sysdev/fsl_pci.h> #include <asm/udbg.h> -#include <asm/fsl_guts.h> #include "smp.h" #include "mpc85xx.h" diff --git a/kernel/arch/powerpc/platforms/85xx/smp.c b/kernel/arch/powerpc/platforms/85xx/smp.c index 8631ac5f0..6b107cea1 100644 --- a/kernel/arch/powerpc/platforms/85xx/smp.c +++ b/kernel/arch/powerpc/platforms/85xx/smp.c @@ -19,6 +19,7 @@ #include <linux/kexec.h> #include <linux/highmem.h> #include <linux/cpu.h> +#include <linux/fsl/guts.h> #include <asm/machdep.h> #include <asm/pgtable.h> @@ -26,7 +27,6 @@ #include <asm/mpic.h> #include <asm/cacheflush.h> #include <asm/dbell.h> -#include <asm/fsl_guts.h> #include <asm/code-patching.h> #include <asm/cputhreads.h> @@ -173,15 +173,22 @@ static inline u32 read_spin_table_addr_l(void *spin_table) static void wake_hw_thread(void *info) { void fsl_secondary_thread_init(void); - unsigned long imsr1, inia1; + unsigned long imsr, inia; int nr = *(const int *)info; - imsr1 = MSR_KERNEL; - inia1 = *(unsigned long *)fsl_secondary_thread_init; + imsr = MSR_KERNEL; + inia = *(unsigned long *)fsl_secondary_thread_init; - mttmr(TMRN_IMSR1, imsr1); - mttmr(TMRN_INIA1, inia1); - mtspr(SPRN_TENS, TEN_THREAD(1)); + if (cpu_thread_in_core(nr) == 0) { + /* For when we boot on a secondary thread with kdump */ + mttmr(TMRN_IMSR0, imsr); + mttmr(TMRN_INIA0, inia); + mtspr(SPRN_TENS, TEN_THREAD(0)); + } else { + mttmr(TMRN_IMSR1, imsr); + mttmr(TMRN_INIA1, inia); + mtspr(SPRN_TENS, TEN_THREAD(1)); + } smp_generic_kick_cpu(nr); } @@ -224,6 +231,12 @@ static int smp_85xx_kick_cpu(int nr) smp_call_function_single(primary, wake_hw_thread, &nr, 0); return 0; + } else if (cpu_thread_in_core(boot_cpuid) != 0 && + cpu_first_thread_sibling(boot_cpuid) == nr) { + if (WARN_ON_ONCE(!cpu_has_feature(CPU_FTR_SMT))) + return -ENOENT; + + smp_call_function_single(boot_cpuid, wake_hw_thread, &nr, 0); } #endif @@ -331,13 +344,14 @@ struct smp_ops_t smp_85xx_ops = { .cpu_disable = generic_cpu_disable, .cpu_die = generic_cpu_die, #endif -#ifdef CONFIG_KEXEC +#if defined(CONFIG_KEXEC) && !defined(CONFIG_PPC64) .give_timebase = smp_generic_give_timebase, .take_timebase = smp_generic_take_timebase, #endif }; #ifdef CONFIG_KEXEC +#ifdef CONFIG_PPC32 atomic_t kexec_down_cpus = ATOMIC_INIT(0); void mpc85xx_smp_kexec_cpu_down(int crash_shutdown, int secondary) @@ -345,6 +359,7 @@ void mpc85xx_smp_kexec_cpu_down(int crash_shutdown, int secondary) local_irq_disable(); if (secondary) { + __flush_disable_L1(); atomic_inc(&kexec_down_cpus); /* loop forever */ while (1); @@ -356,62 +371,67 @@ static void mpc85xx_smp_kexec_down(void *arg) if (ppc_md.kexec_cpu_down) ppc_md.kexec_cpu_down(0,1); } - -static void map_and_flush(unsigned long paddr) +#else +void mpc85xx_smp_kexec_cpu_down(int crash_shutdown, int secondary) { - struct page *page = pfn_to_page(paddr >> PAGE_SHIFT); - unsigned long kaddr = (unsigned long)kmap_atomic(page); + int cpu = smp_processor_id(); + int sibling = cpu_last_thread_sibling(cpu); + bool notified = false; + int disable_cpu; + int disable_threadbit = 0; + long start = mftb(); + long now; - flush_dcache_range(kaddr, kaddr + PAGE_SIZE); - kunmap_atomic((void *)kaddr); -} + local_irq_disable(); + hard_irq_disable(); + mpic_teardown_this_cpu(secondary); -/** - * Before we reset the other cores, we need to flush relevant cache - * out to memory so we don't get anything corrupted, some of these flushes - * are performed out of an overabundance of caution as interrupts are not - * disabled yet and we can switch cores - */ -static void mpc85xx_smp_flush_dcache_kexec(struct kimage *image) -{ - kimage_entry_t *ptr, entry; - unsigned long paddr; - int i; - - if (image->type == KEXEC_TYPE_DEFAULT) { - /* normal kexec images are stored in temporary pages */ - for (ptr = &image->head; (entry = *ptr) && !(entry & IND_DONE); - ptr = (entry & IND_INDIRECTION) ? - phys_to_virt(entry & PAGE_MASK) : ptr + 1) { - if (!(entry & IND_DESTINATION)) { - map_and_flush(entry); + if (cpu == crashing_cpu && cpu_thread_in_core(cpu) != 0) { + /* + * We enter the crash kernel on whatever cpu crashed, + * even if it's a secondary thread. If that's the case, + * disable the corresponding primary thread. + */ + disable_threadbit = 1; + disable_cpu = cpu_first_thread_sibling(cpu); + } else if (sibling != crashing_cpu && + cpu_thread_in_core(cpu) == 0 && + cpu_thread_in_core(sibling) != 0) { + disable_threadbit = 2; + disable_cpu = sibling; + } + + if (disable_threadbit) { + while (paca[disable_cpu].kexec_state < KEXEC_STATE_REAL_MODE) { + barrier(); + now = mftb(); + if (!notified && now - start > 1000000) { + pr_info("%s/%d: waiting for cpu %d to enter KEXEC_STATE_REAL_MODE (%d)\n", + __func__, smp_processor_id(), + disable_cpu, + paca[disable_cpu].kexec_state); + notified = true; } } - /* flush out last IND_DONE page */ - map_and_flush(entry); - } else { - /* crash type kexec images are copied to the crash region */ - for (i = 0; i < image->nr_segments; i++) { - struct kexec_segment *seg = &image->segment[i]; - for (paddr = seg->mem; paddr < seg->mem + seg->memsz; - paddr += PAGE_SIZE) { - map_and_flush(paddr); - } + + if (notified) { + pr_info("%s: cpu %d done waiting\n", + __func__, disable_cpu); } - } - /* also flush the kimage struct to be passed in as well */ - flush_dcache_range((unsigned long)image, - (unsigned long)image + sizeof(*image)); + mtspr(SPRN_TENC, disable_threadbit); + while (mfspr(SPRN_TENSR) & disable_threadbit) + cpu_relax(); + } } +#endif static void mpc85xx_smp_machine_kexec(struct kimage *image) { +#ifdef CONFIG_PPC32 int timeout = INT_MAX; int i, num_cpus = num_present_cpus(); - mpc85xx_smp_flush_dcache_kexec(image); - if (image->type == KEXEC_TYPE_DEFAULT) smp_call_function(mpc85xx_smp_kexec_down, NULL, 0); @@ -429,6 +449,7 @@ static void mpc85xx_smp_machine_kexec(struct kimage *image) if ( i == smp_processor_id() ) continue; mpic_reset_core(i); } +#endif default_machine_kexec(image); } diff --git a/kernel/arch/powerpc/platforms/85xx/socrates_fpga_pic.c b/kernel/arch/powerpc/platforms/85xx/socrates_fpga_pic.c index 55a9682b9..b02d6a5bb 100644 --- a/kernel/arch/powerpc/platforms/85xx/socrates_fpga_pic.c +++ b/kernel/arch/powerpc/platforms/85xx/socrates_fpga_pic.c @@ -91,9 +91,10 @@ static inline unsigned int socrates_fpga_pic_get_irq(unsigned int irq) (irq_hw_number_t)i); } -void socrates_fpga_pic_cascade(unsigned int irq, struct irq_desc *desc) +static void socrates_fpga_pic_cascade(struct irq_desc *desc) { struct irq_chip *chip = irq_desc_get_chip(desc); + unsigned int irq = irq_desc_get_irq(desc); unsigned int cascade_irq; /* diff --git a/kernel/arch/powerpc/platforms/85xx/twr_p102x.c b/kernel/arch/powerpc/platforms/85xx/twr_p102x.c index 1eadb6d0d..892e61351 100644 --- a/kernel/arch/powerpc/platforms/85xx/twr_p102x.c +++ b/kernel/arch/powerpc/platforms/85xx/twr_p102x.c @@ -15,6 +15,7 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/errno.h> +#include <linux/fsl/guts.h> #include <linux/pci.h> #include <linux/of_platform.h> @@ -23,7 +24,6 @@ #include <asm/mpic.h> #include <asm/qe.h> #include <asm/qe_ic.h> -#include <asm/fsl_guts.h> #include <sysdev/fsl_soc.h> #include <sysdev/fsl_pci.h> @@ -79,7 +79,7 @@ static void __init twr_p1025_setup_arch(void) mpc85xx_qe_init(); mpc85xx_qe_par_io_init(); -#if defined(CONFIG_UCC_GETH) || defined(CONFIG_SERIAL_QE) +#if IS_ENABLED(CONFIG_UCC_GETH) || IS_ENABLED(CONFIG_SERIAL_QE) if (machine_is(twr_p1025)) { struct ccsr_guts __iomem *guts; @@ -101,7 +101,7 @@ static void __init twr_p1025_setup_arch(void) MPC85xx_PMUXCR_QE(12)); iounmap(guts); -#if defined(CONFIG_SERIAL_QE) +#if IS_ENABLED(CONFIG_SERIAL_QE) /* On P1025TWR board, the UCC7 acted as UART port. * However, The UCC7's CTS pin is low level in default, * it will impact the transmission in full duplex |