---

yaml
---
r: 28664
b: refs/heads/master
c: c256f4b
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 81bbbe92949b069c101e13d3acbd4bc7d088cb79
+refs/heads/master: c256f4b9598c71afd8eb0b7d3d3790a38734cf43

trunk/arch/powerpc/kernel/iomap.c

@@ -106,8 +106,6 @@ EXPORT_SYMBOL(iowrite32_rep);
 
 void __iomem *ioport_map(unsigned long port, unsigned int len)
 {
-	if (!_IO_IS_VALID(port))
-		return NULL;
 	return (void __iomem *) (port+pci_io_base);
 }
 

trunk/arch/powerpc/kernel/pci_64.c

@@ -42,14 +42,6 @@
 unsigned long pci_probe_only = 1;
 int pci_assign_all_buses = 0;
 
-/*
- * legal IO pages under MAX_ISA_PORT.  This is to ensure we don't touch
- * devices we don't have access to.
- */
-unsigned long io_page_mask;
-
-EXPORT_SYMBOL(io_page_mask);
-
 #ifdef CONFIG_PPC_MULTIPLATFORM
 static void fixup_resource(struct resource *res, struct pci_dev *dev);
 static void do_bus_setup(struct pci_bus *bus);
@@ -1104,8 +1096,6 @@ void __init pci_setup_phb_io(struct pci_controller *hose, int primary)
 			pci_process_ISA_OF_ranges(isa_dn, hose->io_base_phys,
 						hose->io_base_virt);
 			of_node_put(isa_dn);
-			/* Allow all IO */
-			io_page_mask = -1;
 		}
 	}
 
@@ -1232,27 +1222,13 @@ static void phbs_remap_io(void)
 static void __devinit fixup_resource(struct resource *res, struct pci_dev *dev)
 {
 	struct pci_controller *hose = pci_bus_to_host(dev->bus);
-	unsigned long start, end, mask, offset;
+	unsigned long offset;
 
 	if (res->flags & IORESOURCE_IO) {
 		offset = (unsigned long)hose->io_base_virt - pci_io_base;
 
-		start = res->start += offset;
-		end = res->end += offset;
-
-		/* Need to allow IO access to pages that are in the
-		   ISA range */
-		if (start < MAX_ISA_PORT) {
-			if (end > MAX_ISA_PORT)
-				end = MAX_ISA_PORT;
-
-			start >>= PAGE_SHIFT;
-			end >>= PAGE_SHIFT;
-
-			/* get the range of pages for the map */
-			mask = ((1 << (end+1)) - 1) ^ ((1 << start) - 1);
-			io_page_mask |= mask;
-		}
+		res->start += offset;
+		res->end += offset;
 	} else if (res->flags & IORESOURCE_MEM) {
 		res->start += hose->pci_mem_offset;
 		res->end += hose->pci_mem_offset;

trunk/arch/powerpc/platforms/iseries/pci.c

@@ -45,8 +45,6 @@
 #include "call_pci.h"
 #include "iommu.h"
 
-extern unsigned long io_page_mask;
-
 /*
  * Forward declares of prototypes.
  */
@@ -277,7 +275,6 @@ void iSeries_pcibios_init(void)
 {
 	iomm_table_initialize();
 	find_and_init_phbs();
-	io_page_mask = -1;
 }
 
 /*

trunk/arch/powerpc/platforms/maple/pci.c

@@ -437,9 +437,6 @@ void __init maple_pci_init(void)
 
 	/* Tell pci.c to not change any resource allocations.  */
 	pci_probe_only = 1;
-
-	/* Allow all IO */
-	io_page_mask = -1;
 }
 
 int maple_pci_get_legacy_ide_irq(struct pci_dev *pdev, int channel)

trunk/arch/powerpc/platforms/powermac/pci.c

@@ -1068,9 +1068,6 @@ void __init pmac_pci_init(void)
 	/* Tell pci.c to not use the common resource allocation mechanism */
 	pci_probe_only = 1;
 
-	/* Allow all IO */
-	io_page_mask = -1;
-
 #else /* CONFIG_PPC64 */
 	init_p2pbridge();
 	fixup_nec_usb2();

trunk/include/asm-powerpc/eeh.h

@@ -293,8 +293,6 @@ static inline void eeh_memcpy_toio(volatile void __iomem *dest, const void *src,
 static inline u8 eeh_inb(unsigned long port)
 {
 	u8 val;
-	if (!_IO_IS_VALID(port))
-		return ~0;
 	val = in_8((u8 __iomem *)(port+pci_io_base));
 	if (EEH_POSSIBLE_ERROR(val, u8))
 		return eeh_check_failure((void __iomem *)(port), val);
@@ -303,15 +301,12 @@ static inline u8 eeh_inb(unsigned long port)
 
 static inline void eeh_outb(u8 val, unsigned long port)
 {
-	if (_IO_IS_VALID(port))
-		out_8((u8 __iomem *)(port+pci_io_base), val);
+	out_8((u8 __iomem *)(port+pci_io_base), val);
 }
 
 static inline u16 eeh_inw(unsigned long port)
 {
 	u16 val;
-	if (!_IO_IS_VALID(port))
-		return ~0;
 	val = in_le16((u16 __iomem *)(port+pci_io_base));
 	if (EEH_POSSIBLE_ERROR(val, u16))
 		return eeh_check_failure((void __iomem *)(port), val);
@@ -320,15 +315,12 @@ static inline u16 eeh_inw(unsigned long port)
 
 static inline void eeh_outw(u16 val, unsigned long port)
 {
-	if (_IO_IS_VALID(port))
-		out_le16((u16 __iomem *)(port+pci_io_base), val);
+	out_le16((u16 __iomem *)(port+pci_io_base), val);
 }
 
 static inline u32 eeh_inl(unsigned long port)
 {
 	u32 val;
-	if (!_IO_IS_VALID(port))
-		return ~0;
 	val = in_le32((u32 __iomem *)(port+pci_io_base));
 	if (EEH_POSSIBLE_ERROR(val, u32))
 		return eeh_check_failure((void __iomem *)(port), val);
@@ -337,8 +329,7 @@ static inline u32 eeh_inl(unsigned long port)
 
 static inline void eeh_outl(u32 val, unsigned long port)
 {
-	if (_IO_IS_VALID(port))
-		out_le32((u32 __iomem *)(port+pci_io_base), val);
+	out_le32((u32 __iomem *)(port+pci_io_base), val);
 }
 
 /* in-string eeh macros */

trunk/include/asm-powerpc/io.h

@@ -37,12 +37,6 @@
 
 extern unsigned long isa_io_base;
 extern unsigned long pci_io_base;
-extern unsigned long io_page_mask;
-
-#define MAX_ISA_PORT 0x10000
-
-#define _IO_IS_VALID(port) ((port) >= MAX_ISA_PORT || (1 << (port>>PAGE_SHIFT)) \
-			    & io_page_mask)
 
 #ifdef CONFIG_PPC_ISERIES
 /* __raw_* accessors aren't supported on iSeries */