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Date: Wed, 18 Jun 2008 01:33:32 +0300
From: Adrian Bunk <bunk@...nel.org>
To: jbarnes@...tuousgeek.org
Cc: linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
dhowells@...hat.com, gerg@...inux.org, ralf@...ux-mips.org,
linux-mips@...ux-mips.org, lethal@...ux-sh.org,
linux-sh@...r.kernel.org, Russell King <rmk+lkml@....linux.org.uk>
Subject: [2.6 patch] remove pcibios_update_resource() functions
Russell King did the following back in 2003:
<-- snip -->
[PCI] pci-9: Kill per-architecture pcibios_update_resource()
Kill pcibios_update_resource(), replacing it with pci_update_resource().
pci_update_resource() uses pcibios_resource_to_bus() to convert a
resource to a device BAR - the transformation should be exactly the
same as the transformation used for the PCI bridges.
pci_update_resource "knows" about 64-bit BARs, but doesn't attempt to
set the high 32-bits to anything non-zero - currently no architecture
attempts to do something different. If anyone cares, please fix; I'm
going to reflect current behaviour for the time being.
Ivan pointed out the following architectures need to examine their
pcibios_update_resource() implementation - they should make sure that
this new implementation does the right thing. #warning's have been
added where appropriate.
ia64
mips
mips64
This cset also includes a fix for the problem reported by AKPM where
64-bit arch compilers complain about the resource mask being placed
in a u32.
<-- snip -->
This patch removes the unused pcibios_update_resource() functions the
kernel gained since.
Signed-off-by: Adrian Bunk <bunk@...nel.org>
---
arch/frv/mb93090-mb00/pci-frv.c | 30 ------------------------
arch/m68knommu/kernel/comempci.c | 9 -------
arch/mips/pmc-sierra/yosemite/ht.c | 36 -----------------------------
arch/sh/drivers/pci/pci.c | 32 -------------------------
4 files changed, 107 deletions(-)
ebd37440bafbb6f9f5ecd6315ac9953cf97f20e9 diff --git a/arch/frv/mb93090-mb00/pci-frv.c b/arch/frv/mb93090-mb00/pci-frv.c
index 4f165c9..edae117 100644
--- a/arch/frv/mb93090-mb00/pci-frv.c
+++ b/arch/frv/mb93090-mb00/pci-frv.c
@@ -19,36 +19,6 @@
#include "pci-frv.h"
-#if 0
-void
-pcibios_update_resource(struct pci_dev *dev, struct resource *root,
- struct resource *res, int resource)
-{
- u32 new, check;
- int reg;
-
- new = res->start | (res->flags & PCI_REGION_FLAG_MASK);
- if (resource < 6) {
- reg = PCI_BASE_ADDRESS_0 + 4*resource;
- } else if (resource == PCI_ROM_RESOURCE) {
- res->flags |= IORESOURCE_ROM_ENABLE;
- new |= PCI_ROM_ADDRESS_ENABLE;
- reg = dev->rom_base_reg;
- } else {
- /* Somebody might have asked allocation of a non-standard resource */
- return;
- }
-
- pci_write_config_dword(dev, reg, new);
- pci_read_config_dword(dev, reg, &check);
- if ((new ^ check) & ((new & PCI_BASE_ADDRESS_SPACE_IO) ? PCI_BASE_ADDRESS_IO_MASK : PCI_BASE_ADDRESS_MEM_MASK)) {
- printk(KERN_ERR "PCI: Error while updating region "
- "%s/%d (%08x != %08x)\n", pci_name(dev), resource,
- new, check);
- }
-}
-#endif
-
/*
* We need to avoid collisions with `mirrored' VGA ports
* and other strange ISA hardware, so we always want the
diff --git a/arch/m68knommu/kernel/comempci.c b/arch/m68knommu/kernel/comempci.c
index 6ee00ef..0a68b5a 100644
--- a/arch/m68knommu/kernel/comempci.c
+++ b/arch/m68knommu/kernel/comempci.c
@@ -375,15 +375,6 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
/*****************************************************************************/
-void pcibios_update_resource(struct pci_dev *dev, struct resource *root, struct resource *r, int resource)
-{
- printk(KERN_WARNING "%s(%d): no support for changing PCI resources...\n",
- __FILE__, __LINE__);
-}
-
-
-/*****************************************************************************/
-
/*
* Local routines to interrcept the standard I/O and vector handling
* code. Don't include this 'till now - initialization code above needs
diff --git a/arch/mips/pmc-sierra/yosemite/ht.c b/arch/mips/pmc-sierra/yosemite/ht.c
index 6380662..678388f 100644
--- a/arch/mips/pmc-sierra/yosemite/ht.c
+++ b/arch/mips/pmc-sierra/yosemite/ht.c
@@ -345,42 +345,6 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
return pcibios_enable_resources(dev);
}
-
-
-void pcibios_update_resource(struct pci_dev *dev, struct resource *root,
- struct resource *res, int resource)
-{
- u32 new, check;
- int reg;
-
- return;
-
- new = res->start | (res->flags & PCI_REGION_FLAG_MASK);
- if (resource < 6) {
- reg = PCI_BASE_ADDRESS_0 + 4 * resource;
- } else if (resource == PCI_ROM_RESOURCE) {
- res->flags |= IORESOURCE_ROM_ENABLE;
- reg = dev->rom_base_reg;
- } else {
- /*
- * Somebody might have asked allocation of a non-standard
- * resource
- */
- return;
- }
-
- pci_write_config_dword(dev, reg, new);
- pci_read_config_dword(dev, reg, &check);
- if ((new ^ check) &
- ((new & PCI_BASE_ADDRESS_SPACE_IO) ? PCI_BASE_ADDRESS_IO_MASK :
- PCI_BASE_ADDRESS_MEM_MASK)) {
- printk(KERN_ERR "PCI: Error while updating region "
- "%s/%d (%08x != %08x)\n", pci_name(dev), resource,
- new, check);
- }
-}
-
-
void pcibios_align_resource(void *data, struct resource *res,
resource_size_t size, resource_size_t align)
{
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index 08d2e73..f57095a 100644
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -76,38 +76,6 @@ void __devinit __weak pcibios_fixup_bus(struct pci_bus *bus)
pci_read_bridge_bases(bus);
}
-void
-pcibios_update_resource(struct pci_dev *dev, struct resource *root,
- struct resource *res, int resource)
-{
- u32 new, check;
- int reg;
-
- new = res->start | (res->flags & PCI_REGION_FLAG_MASK);
- if (resource < 6) {
- reg = PCI_BASE_ADDRESS_0 + 4*resource;
- } else if (resource == PCI_ROM_RESOURCE) {
- res->flags |= IORESOURCE_ROM_ENABLE;
- new |= PCI_ROM_ADDRESS_ENABLE;
- reg = dev->rom_base_reg;
- } else {
- /*
- * Somebody might have asked allocation of a non-standard
- * resource
- */
- return;
- }
-
- pci_write_config_dword(dev, reg, new);
- pci_read_config_dword(dev, reg, &check);
- if ((new ^ check) & ((new & PCI_BASE_ADDRESS_SPACE_IO) ?
- PCI_BASE_ADDRESS_IO_MASK : PCI_BASE_ADDRESS_MEM_MASK)) {
- printk(KERN_ERR "PCI: Error while updating region "
- "%s/%d (%08x != %08x)\n", pci_name(dev), resource,
- new, check);
- }
-}
-
void pcibios_align_resource(void *data, struct resource *res,
resource_size_t size, resource_size_t align)
__attribute__ ((weak));
--
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