mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-15 16:53:54 +08:00
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull third set of powerpc updates from Benjamin Herrenschmidt: "This is a small collection of random bug fixes and a few improvements of Oops output which I deemed valuable enough to include as well. The fixes are essentially recent build breakage and regressions, and a couple of older bugs such as the DTL log duplication, the EEH issue with PCI_COMMAND_MASTER and the problem with small contexts passed to get/set_context with VSX enabled" * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/signals: Mark VSX not saved with small contexts powerpc/pseries: Fix SMP=n build of rng.c powerpc: Make cpu_to_chip_id() available when SMP=n powerpc/vio: Fix a dma_mask issue of vio powerpc: booke: Fix build failures powerpc: ppc64 address space capped at 32TB, mmap randomisation disabled powerpc: Only print PACATMSCRATCH in oops when TM is active powerpc/pseries: Duplicate dtl entries sometimes sent to userspace powerpc: Remove a few lines of oops output powerpc: Print DAR and DSISR on machine check oopses powerpc: Fix __get_user_pages_fast() irq handling powerpc/eeh: More accurate log powerpc/eeh: Enable PCI_COMMAND_MASTER for PCI bridges
This commit is contained in:
commit
3bab0bf045
@ -33,6 +33,7 @@ extern int boot_cpuid;
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extern int spinning_secondaries;
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extern void cpu_die(void);
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extern int cpu_to_chip_id(int cpu);
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#ifdef CONFIG_SMP
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@ -112,7 +113,6 @@ static inline struct cpumask *cpu_core_mask(int cpu)
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}
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extern int cpu_to_core_id(int cpu);
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extern int cpu_to_chip_id(int cpu);
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/* Since OpenPIC has only 4 IPIs, we use slightly different message numbers.
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*
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@ -686,6 +686,15 @@ void eeh_save_bars(struct eeh_dev *edev)
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for (i = 0; i < 16; i++)
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eeh_ops->read_config(dn, i * 4, 4, &edev->config_space[i]);
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/*
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* For PCI bridges including root port, we need enable bus
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* master explicitly. Otherwise, it can't fetch IODA table
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* entries correctly. So we cache the bit in advance so that
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* we can restore it after reset, either PHB range or PE range.
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*/
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if (edev->mode & EEH_DEV_BRIDGE)
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edev->config_space[1] |= PCI_COMMAND_MASTER;
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}
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/**
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@ -74,8 +74,13 @@ static int eeh_event_handler(void * dummy)
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pe = event->pe;
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if (pe) {
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eeh_pe_state_mark(pe, EEH_PE_RECOVERING);
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pr_info("EEH: Detected PCI bus error on PHB#%d-PE#%x\n",
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pe->phb->global_number, pe->addr);
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if (pe->type & EEH_PE_PHB)
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pr_info("EEH: Detected error on PHB#%d\n",
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pe->phb->global_number);
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else
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pr_info("EEH: Detected PCI bus error on "
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"PHB#%d-PE#%x\n",
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pe->phb->global_number, pe->addr);
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eeh_handle_event(pe);
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eeh_pe_state_clear(pe, EEH_PE_RECOVERING);
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} else {
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@ -858,17 +858,21 @@ void show_regs(struct pt_regs * regs)
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printk("MSR: "REG" ", regs->msr);
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printbits(regs->msr, msr_bits);
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printk(" CR: %08lx XER: %08lx\n", regs->ccr, regs->xer);
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#ifdef CONFIG_PPC64
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printk("SOFTE: %ld\n", regs->softe);
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#endif
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trap = TRAP(regs);
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if ((regs->trap != 0xc00) && cpu_has_feature(CPU_FTR_CFAR))
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printk("CFAR: "REG"\n", regs->orig_gpr3);
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if (trap == 0x300 || trap == 0x600)
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printk("CFAR: "REG" ", regs->orig_gpr3);
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if (trap == 0x200 || trap == 0x300 || trap == 0x600)
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#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
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printk("DEAR: "REG", ESR: "REG"\n", regs->dar, regs->dsisr);
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printk("DEAR: "REG" ESR: "REG" ", regs->dar, regs->dsisr);
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#else
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printk("DAR: "REG", DSISR: %08lx\n", regs->dar, regs->dsisr);
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printk("DAR: "REG" DSISR: %08lx ", regs->dar, regs->dsisr);
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#endif
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#ifdef CONFIG_PPC64
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printk("SOFTE: %ld ", regs->softe);
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#endif
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#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
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if (MSR_TM_ACTIVE(regs->msr))
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printk("\nPACATMSCRATCH: %016llx ", get_paca()->tm_scratch);
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#endif
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for (i = 0; i < 32; i++) {
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@ -886,9 +890,6 @@ void show_regs(struct pt_regs * regs)
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*/
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printk("NIP ["REG"] %pS\n", regs->nip, (void *)regs->nip);
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printk("LR ["REG"] %pS\n", regs->link, (void *)regs->link);
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#endif
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#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
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printk("PACATMSCRATCH [%llx]\n", get_paca()->tm_scratch);
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#endif
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show_stack(current, (unsigned long *) regs->gpr[1]);
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if (!user_mode(regs))
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@ -777,6 +777,26 @@ int of_get_ibm_chip_id(struct device_node *np)
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return -1;
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}
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/**
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* cpu_to_chip_id - Return the cpus chip-id
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* @cpu: The logical cpu number.
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*
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* Return the value of the ibm,chip-id property corresponding to the given
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* logical cpu number. If the chip-id can not be found, returns -1.
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*/
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int cpu_to_chip_id(int cpu)
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{
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struct device_node *np;
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np = of_get_cpu_node(cpu, NULL);
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if (!np)
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return -1;
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of_node_put(np);
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return of_get_ibm_chip_id(np);
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}
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EXPORT_SYMBOL(cpu_to_chip_id);
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#ifdef CONFIG_PPC_PSERIES
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/*
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* Fix up the uninitialized fields in a new device node:
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@ -457,7 +457,15 @@ static int save_user_regs(struct pt_regs *regs, struct mcontext __user *frame,
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if (copy_vsx_to_user(&frame->mc_vsregs, current))
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return 1;
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msr |= MSR_VSX;
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}
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} else if (!ctx_has_vsx_region)
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/*
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* With a small context structure we can't hold the VSX
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* registers, hence clear the MSR value to indicate the state
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* was not saved.
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*/
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msr &= ~MSR_VSX;
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#endif /* CONFIG_VSX */
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#ifdef CONFIG_SPE
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/* save spe registers */
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@ -597,22 +597,6 @@ out:
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return id;
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}
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/* Return the value of the chip-id property corresponding
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* to the given logical cpu.
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*/
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int cpu_to_chip_id(int cpu)
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{
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struct device_node *np;
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np = of_get_cpu_node(cpu, NULL);
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if (!np)
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return -1;
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of_node_put(np);
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return of_get_ibm_chip_id(np);
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}
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EXPORT_SYMBOL(cpu_to_chip_id);
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/* Helper routines for cpu to core mapping */
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int cpu_core_index_of_thread(int cpu)
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{
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@ -213,8 +213,6 @@ static u64 scan_dispatch_log(u64 stop_tb)
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if (i == be64_to_cpu(vpa->dtl_idx))
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return 0;
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while (i < be64_to_cpu(vpa->dtl_idx)) {
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if (dtl_consumer)
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dtl_consumer(dtl, i);
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dtb = be64_to_cpu(dtl->timebase);
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tb_delta = be32_to_cpu(dtl->enqueue_to_dispatch_time) +
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be32_to_cpu(dtl->ready_to_enqueue_time);
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@ -227,6 +225,8 @@ static u64 scan_dispatch_log(u64 stop_tb)
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}
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if (dtb > stop_tb)
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break;
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if (dtl_consumer)
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dtl_consumer(dtl, i);
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stolen += tb_delta;
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++i;
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++dtl;
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@ -1419,7 +1419,7 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node)
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/* needed to ensure proper operation of coherent allocations
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* later, in case driver doesn't set it explicitly */
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dma_set_mask_and_coherent(&viodev->dev, DMA_BIT_MASK(64));
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dma_coerce_mask_and_coherent(&viodev->dev, DMA_BIT_MASK(64));
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}
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/* register with generic device framework */
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@ -123,6 +123,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
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struct mm_struct *mm = current->mm;
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unsigned long addr, len, end;
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unsigned long next;
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unsigned long flags;
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pgd_t *pgdp;
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int nr = 0;
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@ -156,7 +157,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
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* So long as we atomically load page table pointers versus teardown,
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* we can follow the address down to the the page and take a ref on it.
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*/
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local_irq_disable();
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local_irq_save(flags);
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pgdp = pgd_offset(mm, addr);
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do {
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@ -179,7 +180,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
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break;
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} while (pgdp++, addr = next, addr != end);
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local_irq_enable();
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local_irq_restore(flags);
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return nr;
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}
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@ -258,7 +258,7 @@ static bool slice_scan_available(unsigned long addr,
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slice = GET_HIGH_SLICE_INDEX(addr);
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*boundary_addr = (slice + end) ?
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((slice + end) << SLICE_HIGH_SHIFT) : SLICE_LOW_TOP;
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return !!(available.high_slices & (1u << slice));
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return !!(available.high_slices & (1ul << slice));
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}
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}
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@ -19,6 +19,7 @@
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#include <asm/io.h>
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#include <asm/prom.h>
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#include <asm/machdep.h>
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#include <asm/smp.h>
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struct powernv_rng {
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@ -13,6 +13,7 @@
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#include <linux/of.h>
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#include <asm/archrandom.h>
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#include <asm/machdep.h>
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#include <asm/plpar_wrappers.h>
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static int pseries_get_random_long(unsigned long *v)
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@ -15,6 +15,7 @@
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#include <linux/of.h>
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#include <linux/smp.h>
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#include <linux/time.h>
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#include <linux/of_fdt.h>
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#include <asm/machdep.h>
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#include <asm/udbg.h>
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@ -10,6 +10,7 @@
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#include <linux/kernel.h>
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#include <linux/of.h>
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#include <linux/io.h>
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#include <linux/of_address.h>
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#include "wsp.h"
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@ -18,6 +18,8 @@
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#include <linux/smp.h>
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#include <linux/spinlock.h>
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#include <linux/types.h>
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#include <linux/of_address.h>
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#include <linux/of_irq.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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@ -15,6 +15,8 @@
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#include <linux/of.h>
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#include <linux/slab.h>
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#include <linux/time.h>
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#include <linux/of_address.h>
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#include <linux/of_irq.h>
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#include <asm/reg_a2.h>
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#include <asm/irq.h>
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@ -15,6 +15,7 @@
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#include <linux/of.h>
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#include <linux/smp.h>
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#include <linux/time.h>
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#include <linux/of_fdt.h>
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#include <asm/machdep.h>
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#include <asm/udbg.h>
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@ -14,6 +14,7 @@
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#include <linux/of.h>
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#include <linux/spinlock.h>
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#include <linux/types.h>
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#include <linux/of_address.h>
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#include <asm/cputhreads.h>
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#include <asm/reg_a2.h>
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@ -13,6 +13,7 @@
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#include <linux/smp.h>
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#include <linux/delay.h>
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#include <linux/time.h>
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#include <linux/of_address.h>
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#include <asm/scom.h>
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