diff options
Diffstat (limited to 'arch/powerpc/sysdev')
| -rw-r--r-- | arch/powerpc/sysdev/6xx-suspend.S | 5 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/dart_iommu.c | 65 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/fsl_pci.c | 25 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/ipic.c | 35 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/tsi108_dev.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/xive/common.c | 2 |
6 files changed, 40 insertions, 94 deletions
diff --git a/arch/powerpc/sysdev/6xx-suspend.S b/arch/powerpc/sysdev/6xx-suspend.S index cf48e9cb2575..6c4aec25c4ba 100644 --- a/arch/powerpc/sysdev/6xx-suspend.S +++ b/arch/powerpc/sysdev/6xx-suspend.S @@ -29,10 +29,9 @@ _GLOBAL(mpc6xx_enter_standby) ori r5, r5, ret_from_standby@l mtlr r5 - CURRENT_THREAD_INFO(r5, r1) - lwz r6, TI_LOCAL_FLAGS(r5) + lwz r6, TI_LOCAL_FLAGS(r2) ori r6, r6, _TLF_SLEEPING - stw r6, TI_LOCAL_FLAGS(r5) + stw r6, TI_LOCAL_FLAGS(r2) mfmsr r5 ori r5, r5, MSR_EE diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c index a5b40d1460f1..fc5c5c23303e 100644 --- a/arch/powerpc/sysdev/dart_iommu.c +++ b/arch/powerpc/sysdev/dart_iommu.c @@ -251,8 +251,11 @@ static void allocate_dart(void) * 16MB (1 << 24) alignment. We allocate a full 16Mb chuck since we * will blow up an entire large page anyway in the kernel mapping. */ - dart_tablebase = __va(memblock_alloc_base(1UL<<24, - 1UL<<24, 0x80000000L)); + dart_tablebase = memblock_alloc_try_nid_raw(SZ_16M, SZ_16M, + MEMBLOCK_LOW_LIMIT, SZ_2G, + NUMA_NO_NODE); + if (!dart_tablebase) + panic("Failed to allocate 16MB below 2GB for DART table\n"); /* There is no point scanning the DART space for leaks*/ kmemleak_no_scan((void *)dart_tablebase); @@ -360,13 +363,6 @@ static void iommu_table_dart_setup(void) set_bit(iommu_table_dart.it_size - 1, iommu_table_dart.it_map); } -static void pci_dma_dev_setup_dart(struct pci_dev *dev) -{ - if (dart_is_u4) - set_dma_offset(&dev->dev, DART_U4_BYPASS_BASE); - set_iommu_table_base(&dev->dev, &iommu_table_dart); -} - static void pci_dma_bus_setup_dart(struct pci_bus *bus) { if (!iommu_table_dart_inited) { @@ -390,27 +386,18 @@ static bool dart_device_on_pcie(struct device *dev) return false; } -static int dart_dma_set_mask(struct device *dev, u64 dma_mask) +static void pci_dma_dev_setup_dart(struct pci_dev *dev) { - if (!dev->dma_mask || !dma_supported(dev, dma_mask)) - return -EIO; - - /* U4 supports a DART bypass, we use it for 64-bit capable - * devices to improve performances. However, that only works - * for devices connected to U4 own PCIe interface, not bridged - * through hypertransport. We need the device to support at - * least 40 bits of addresses. - */ - if (dart_device_on_pcie(dev) && dma_mask >= DMA_BIT_MASK(40)) { - dev_info(dev, "Using 64-bit DMA iommu bypass\n"); - set_dma_ops(dev, &dma_nommu_ops); - } else { - dev_info(dev, "Using 32-bit DMA via iommu\n"); - set_dma_ops(dev, &dma_iommu_ops); - } + if (dart_is_u4 && dart_device_on_pcie(&dev->dev)) + dev->dev.archdata.dma_offset = DART_U4_BYPASS_BASE; + set_iommu_table_base(&dev->dev, &iommu_table_dart); +} - *dev->dma_mask = dma_mask; - return 0; +static bool iommu_bypass_supported_dart(struct pci_dev *dev, u64 mask) +{ + return dart_is_u4 && + dart_device_on_pcie(&dev->dev) && + mask >= DMA_BIT_MASK(40); } void __init iommu_init_early_dart(struct pci_controller_ops *controller_ops) @@ -428,26 +415,20 @@ void __init iommu_init_early_dart(struct pci_controller_ops *controller_ops) /* Initialize the DART HW */ if (dart_init(dn) != 0) - goto bail; - - /* Setup bypass if supported */ - if (dart_is_u4) - ppc_md.dma_set_mask = dart_dma_set_mask; + return; + /* + * U4 supports a DART bypass, we use it for 64-bit capable devices to + * improve performance. However, that only works for devices connected + * to the U4 own PCIe interface, not bridged through hypertransport. + * We need the device to support at least 40 bits of addresses. + */ controller_ops->dma_dev_setup = pci_dma_dev_setup_dart; controller_ops->dma_bus_setup = pci_dma_bus_setup_dart; + controller_ops->iommu_bypass_supported = iommu_bypass_supported_dart; /* Setup pci_dma ops */ set_pci_dma_ops(&dma_iommu_ops); - return; - - bail: - /* If init failed, use direct iommu and null setup functions */ - controller_ops->dma_dev_setup = NULL; - controller_ops->dma_bus_setup = NULL; - - /* Setup pci_dma ops */ - set_pci_dma_ops(&dma_nommu_ops); } #ifdef CONFIG_PM diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c index 918be816b097..f49aec251a5a 100644 --- a/arch/powerpc/sysdev/fsl_pci.c +++ b/arch/powerpc/sysdev/fsl_pci.c @@ -40,6 +40,7 @@ #include <asm/mpc85xx.h> #include <asm/disassemble.h> #include <asm/ppc-opcode.h> +#include <asm/swiotlb.h> #include <sysdev/fsl_soc.h> #include <sysdev/fsl_pci.h> @@ -114,33 +115,33 @@ static struct pci_ops fsl_indirect_pcie_ops = static u64 pci64_dma_offset; #ifdef CONFIG_SWIOTLB +static void pci_dma_dev_setup_swiotlb(struct pci_dev *pdev) +{ + struct pci_controller *hose = pci_bus_to_host(pdev->bus); + + pdev->dev.bus_dma_mask = + hose->dma_window_base_cur + hose->dma_window_size; +} + static void setup_swiotlb_ops(struct pci_controller *hose) { - if (ppc_swiotlb_enable) { + if (ppc_swiotlb_enable) hose->controller_ops.dma_dev_setup = pci_dma_dev_setup_swiotlb; - set_pci_dma_ops(&powerpc_swiotlb_dma_ops); - } } #else static inline void setup_swiotlb_ops(struct pci_controller *hose) {} #endif -static int fsl_pci_dma_set_mask(struct device *dev, u64 dma_mask) +static void fsl_pci_dma_set_mask(struct device *dev, u64 dma_mask) { - if (!dev->dma_mask || !dma_supported(dev, dma_mask)) - return -EIO; - /* * Fix up PCI devices that are able to DMA to the large inbound * mapping that allows addressing any RAM address from across PCI. */ if (dev_is_pci(dev) && dma_mask >= pci64_dma_offset * 2 - 1) { - set_dma_ops(dev, &dma_nommu_ops); - set_dma_offset(dev, pci64_dma_offset); + dev->bus_dma_mask = 0; + dev->archdata.dma_offset = pci64_dma_offset; } - - *dev->dma_mask = dma_mask; - return 0; } static int setup_one_atmu(struct ccsr_pci __iomem *pci, diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c index 8030a0f55e96..fd129c8ecceb 100644 --- a/arch/powerpc/sysdev/ipic.c +++ b/arch/powerpc/sysdev/ipic.c @@ -771,21 +771,6 @@ struct ipic * __init ipic_init(struct device_node *node, unsigned int flags) return ipic; } -void ipic_set_highest_priority(unsigned int virq) -{ - struct ipic *ipic = ipic_from_irq(virq); - unsigned int src = virq_to_hw(virq); - u32 temp; - - temp = ipic_read(ipic->regs, IPIC_SICFR); - - /* clear and set HPI */ - temp &= 0x7f000000; - temp |= (src & 0x7f) << 24; - - ipic_write(ipic->regs, IPIC_SICFR, temp); -} - void ipic_set_default_priority(void) { ipic_write(primary_ipic->regs, IPIC_SIPRR_A, IPIC_PRIORITY_DEFAULT); @@ -796,26 +781,6 @@ void ipic_set_default_priority(void) ipic_write(primary_ipic->regs, IPIC_SMPRR_B, IPIC_PRIORITY_DEFAULT); } -void ipic_enable_mcp(enum ipic_mcp_irq mcp_irq) -{ - struct ipic *ipic = primary_ipic; - u32 temp; - - temp = ipic_read(ipic->regs, IPIC_SERMR); - temp |= (1 << (31 - mcp_irq)); - ipic_write(ipic->regs, IPIC_SERMR, temp); -} - -void ipic_disable_mcp(enum ipic_mcp_irq mcp_irq) -{ - struct ipic *ipic = primary_ipic; - u32 temp; - - temp = ipic_read(ipic->regs, IPIC_SERMR); - temp &= (1 << (31 - mcp_irq)); - ipic_write(ipic->regs, IPIC_SERMR, temp); -} - u32 ipic_get_mcp_status(void) { return primary_ipic ? ipic_read(primary_ipic->regs, IPIC_SERSR) : 0; diff --git a/arch/powerpc/sysdev/tsi108_dev.c b/arch/powerpc/sysdev/tsi108_dev.c index 1fd0717ade02..1f1af12f23e2 100644 --- a/arch/powerpc/sysdev/tsi108_dev.c +++ b/arch/powerpc/sysdev/tsi108_dev.c @@ -51,7 +51,7 @@ phys_addr_t get_csrbase(void) const void *prop = of_get_property(tsi, "reg", &size); tsi108_csr_base = of_translate_address(tsi, prop); of_node_put(tsi); - }; + } return tsi108_csr_base; } diff --git a/arch/powerpc/sysdev/xive/common.c b/arch/powerpc/sysdev/xive/common.c index 94a69a62f5db..70a8f9e31a2d 100644 --- a/arch/powerpc/sysdev/xive/common.c +++ b/arch/powerpc/sysdev/xive/common.c @@ -442,7 +442,7 @@ static void xive_dec_target_count(int cpu) struct xive_cpu *xc = per_cpu(xive_cpu, cpu); struct xive_q *q = &xc->queue[xive_irq_priority]; - if (unlikely(WARN_ON(cpu < 0 || !xc))) { + if (WARN_ON(cpu < 0 || !xc)) { pr_err("%s: cpu=%d xc=%p\n", __func__, cpu, xc); return; } |