From 56a4c6e31a25a218c066d8da27558a86310bbfd7 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Mon, 23 Jul 2007 11:55:32 +1000 Subject: [POWERPC] iSeries: We need vio_enable_interrupts Commit 3d0e91f7ace12499c4b00088e9a6b1361e1bb0ca introduced a requirement for vio_enable_interrupts which iSeires has never needed. So create a dummy one. Signed-off-by: Stephen Rothwell Signed-off-by: Paul Mackerras --- include/asm-powerpc/vio.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/asm-powerpc/vio.h b/include/asm-powerpc/vio.h index 0117b544ecb..3a0975e2ada 100644 --- a/include/asm-powerpc/vio.h +++ b/include/asm-powerpc/vio.h @@ -80,6 +80,11 @@ extern const void *vio_get_attribute(struct vio_dev *vdev, char *which, extern struct vio_dev *vio_find_node(struct device_node *vnode); extern int vio_enable_interrupts(struct vio_dev *dev); extern int vio_disable_interrupts(struct vio_dev *dev); +#else +static inline int vio_enable_interrupts(struct vio_dev *dev) +{ + return 0; +} #endif static inline struct vio_driver *to_vio_driver(struct device_driver *drv) -- cgit v1.2.3 From c40b91b59de079583cde5f0c8e2c96d8af0f76a7 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Wed, 25 Jul 2007 09:27:35 +1000 Subject: [POWERPC] iSeries: Fix section mismatch warnings WARNING: vmlinux.o(.text+0x8124): Section mismatch: reference to .init.text:.iSeries_early_setup (between '.__start_initialization_iSeries' and '.__mmu_off') WARNING: vmlinux.o(.text+0x8128): Section mismatch: reference to .init.text:.early_setup (between '.__start_initialization_iSeries' and '.__mmu_off') Signed-off-by: Stephen Rothwell Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/head_64.S | 7 ++++--- include/asm-powerpc/ppc_asm.h | 12 ++++++++++++ 2 files changed, 16 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S index 8cdd48ea439..1448af92c6a 100644 --- a/arch/powerpc/kernel/head_64.S +++ b/arch/powerpc/kernel/head_64.S @@ -809,8 +809,9 @@ system_reset_iSeries: mtmsrd r24 /* RI on */ lhz r24,PACAPACAINDEX(r13) /* Get processor # */ cmpwi 0,r24,0 /* Are we processor 0? */ - beq .__start_initialization_iSeries /* Start up the first processor */ - mfspr r4,SPRN_CTRLF + bne 1f + b .__start_initialization_iSeries /* Start up the first processor */ +1: mfspr r4,SPRN_CTRLF li r5,CTRL_RUNLATCH /* Turn off the run light */ andc r4,r4,r5 mtspr SPRN_CTRLT,r4 @@ -1611,7 +1612,7 @@ _GLOBAL(generic_secondary_smp_init) #endif #ifdef CONFIG_PPC_ISERIES -_STATIC(__start_initialization_iSeries) +_INIT_STATIC(__start_initialization_iSeries) /* Clear out the BSS */ LOAD_REG_IMMEDIATE(r11,__bss_stop) LOAD_REG_IMMEDIATE(r8,__bss_start) diff --git a/include/asm-powerpc/ppc_asm.h b/include/asm-powerpc/ppc_asm.h index fa083d8e466..65325721446 100644 --- a/include/asm-powerpc/ppc_asm.h +++ b/include/asm-powerpc/ppc_asm.h @@ -181,6 +181,18 @@ name: \ .type GLUE(.,name),@function; \ GLUE(.,name): +#define _INIT_STATIC(name) \ + .section ".text.init.refok"; \ + .align 2 ; \ + .section ".opd","aw"; \ +name: \ + .quad GLUE(.,name); \ + .quad .TOC.@tocbase; \ + .quad 0; \ + .previous; \ + .type GLUE(.,name),@function; \ +GLUE(.,name): + #else /* 32-bit */ #define _GLOBAL(n) \ -- cgit v1.2.3 From 6dfbde209171cd15407e7540d363a434a489aaca Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 26 Jul 2007 14:07:13 +1000 Subject: [POWERPC] Add function to check if address is an IO port This adds a function that tells you if a given kernel virtual address is hitting a PCI or ISA IO port permanent mapping or not. This is to be used in the next patch to fix iomap APIs to properly unmap things. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/pci-common.c | 23 +++++++++++++++++++++++ include/asm-powerpc/pci-bridge.h | 20 ++++++++++++++++++++ 2 files changed, 43 insertions(+) (limited to 'include') diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index fe7d1255e11..74a8fd450f6 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -101,6 +101,29 @@ void pcibios_free_controller(struct pci_controller *phb) kfree(phb); } +int pcibios_vaddr_is_ioport(void __iomem *address) +{ + int ret = 0; + struct pci_controller *hose; + unsigned long size; + + spin_lock(&hose_spinlock); + list_for_each_entry(hose, &hose_list, list_node) { +#ifdef CONFIG_PPC64 + size = hose->pci_io_size; +#else + size = hose->io_resource.end - hose->io_resource.start + 1; +#endif + if (address >= hose->io_base_virt && + address < (hose->io_base_virt + size)) { + ret = 1; + break; + } + } + spin_unlock(&hose_spinlock); + return ret; +} + /* * Return the domain number for this bus. */ diff --git a/include/asm-powerpc/pci-bridge.h b/include/asm-powerpc/pci-bridge.h index d53e0eb1de1..e909769b641 100644 --- a/include/asm-powerpc/pci-bridge.h +++ b/include/asm-powerpc/pci-bridge.h @@ -71,6 +71,14 @@ static inline struct pci_controller *pci_bus_to_host(struct pci_bus *bus) return bus->sysdata; } +static inline int isa_vaddr_is_ioport(void __iomem *address) +{ + /* No specific ISA handling on ppc32 at this stage, it + * all goes through PCI + */ + return 0; +} + /* These are used for config access before all the PCI probing has been done. */ int early_read_config_byte(struct pci_controller *hose, int bus, int dev_fn, @@ -241,6 +249,13 @@ extern void pcibios_free_controller(struct pci_controller *phb); extern void isa_bridge_find_early(struct pci_controller *hose); +static inline int isa_vaddr_is_ioport(void __iomem *address) +{ + /* Check if address hits the reserved legacy IO range */ + unsigned long ea = (unsigned long)address; + return ea >= ISA_IO_BASE && ea < ISA_IO_END; +} + extern int pcibios_unmap_io_space(struct pci_bus *bus); extern int pcibios_map_io_space(struct pci_bus *bus); @@ -271,11 +286,16 @@ extern struct pci_controller * pcibios_alloc_controller(struct device_node *dev); #ifdef CONFIG_PCI extern unsigned long pci_address_to_pio(phys_addr_t address); +extern int pcibios_vaddr_is_ioport(void __iomem *address); #else static inline unsigned long pci_address_to_pio(phys_addr_t address) { return (unsigned long)-1; } +static inline int pcibios_vaddr_is_ioport(void __iomem *address) +{ + return 0; +} #endif -- cgit v1.2.3