[PATCH] add hook for PCI resource deallocation

From: Kenji Kaneshige
Date: Thu Sep 16 2004 - 07:57:50 EST

Hi,

This patch adds a hook 'pcibios_disable_device()' into
pci_disable_device() to call architecture specific PCI resource
deallocation code. It's a opposite part of pcibios_enable_device().
We need this hook to deallocate architecture specific PCI resource
such as IRQ resource, etc.. This patch is just for adding the hook,
so pcibios_disable_device() is defined as a null function on all
architecture so far.

I tested this patch on i386, x86_64 and ia64. But it has not been
tested on other architectures because I don't have these machines.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@xxxxxxxxxxxxxx>


---

linux-2.6.9-rc2-kanesige/arch/alpha/kernel/pci.c | 5 +++++
linux-2.6.9-rc2-kanesige/arch/arm/kernel/bios32.c | 4 ++++
linux-2.6.9-rc2-kanesige/arch/i386/pci/common.c | 4 ++++
linux-2.6.9-rc2-kanesige/arch/ia64/pci/pci.c | 5 +++++
linux-2.6.9-rc2-kanesige/arch/m68knommu/kernel/comempci.c | 4 ++++
linux-2.6.9-rc2-kanesige/arch/mips/pci/pci.c | 4 ++++
linux-2.6.9-rc2-kanesige/arch/mips/pmc-sierra/yosemite/ht.c | 5 +++++
linux-2.6.9-rc2-kanesige/arch/parisc/kernel/pci.c | 6 ++++++
linux-2.6.9-rc2-kanesige/arch/ppc/kernel/pci.c | 5 +++++
linux-2.6.9-rc2-kanesige/arch/ppc64/kernel/pci.c | 5 +++++
linux-2.6.9-rc2-kanesige/arch/sh/boards/overdrive/galileo.c | 4 ++++
linux-2.6.9-rc2-kanesige/arch/sh/drivers/pci/pci.c | 4 ++++
linux-2.6.9-rc2-kanesige/arch/sh64/kernel/pcibios.c | 5 +++++
linux-2.6.9-rc2-kanesige/arch/sparc/kernel/pcic.c | 4 ++++
linux-2.6.9-rc2-kanesige/arch/sparc64/kernel/pci.c | 4 ++++
linux-2.6.9-rc2-kanesige/arch/v850/kernel/rte_mb_a_pci.c | 6 ++++++
linux-2.6.9-rc2-kanesige/drivers/pci/pci.c | 2 ++
linux-2.6.9-rc2-kanesige/include/linux/pci.h | 1 +
18 files changed, 77 insertions(+)

diff -puN arch/alpha/kernel/pci.c~IRQ_deallocation_pci arch/alpha/kernel/pci.c
--- linux-2.6.9-rc2/arch/alpha/kernel/pci.c~IRQ_deallocation_pci 2004-09-16 15:58:27.296954429 +0900
+++ linux-2.6.9-rc2-kanesige/arch/alpha/kernel/pci.c 2004-09-16 15:58:27.338946945 +0900
@@ -384,6 +384,11 @@ pcibios_enable_device(struct pci_dev *de
return 0;
}

+void
+pcibios_disable_device(struct pci_dev *dev)
+{
+}
+
/*
* If we set up a device for bus mastering, we need to check the latency
* timer as certain firmware forgets to set it properly, as seen
diff -puN arch/arm/kernel/bios32.c~IRQ_deallocation_pci arch/arm/kernel/bios32.c
--- linux-2.6.9-rc2/arch/arm/kernel/bios32.c~IRQ_deallocation_pci 2004-09-16 15:58:27.299884139 +0900
+++ linux-2.6.9-rc2-kanesige/arch/arm/kernel/bios32.c 2004-09-16 15:58:27.338946945 +0900
@@ -672,6 +672,10 @@ int pcibios_enable_device(struct pci_dev
return 0;
}

+void pcibios_disable_device(struct pci_dev *dev)
+{
+}
+
int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
enum pci_mmap_state mmap_state, int write_combine)
{
diff -puN arch/i386/pci/common.c~IRQ_deallocation_pci arch/i386/pci/common.c
--- linux-2.6.9-rc2/arch/i386/pci/common.c~IRQ_deallocation_pci 2004-09-16 15:58:27.301837280 +0900
+++ linux-2.6.9-rc2-kanesige/arch/i386/pci/common.c 2004-09-16 15:58:27.339923515 +0900
@@ -245,3 +245,7 @@ int pcibios_enable_device(struct pci_dev

return pcibios_enable_irq(dev);
}
+
+void pcibios_disable_device(struct pci_dev *dev)
+{
+}
diff -puN arch/ia64/pci/pci.c~IRQ_deallocation_pci arch/ia64/pci/pci.c
--- linux-2.6.9-rc2/arch/ia64/pci/pci.c~IRQ_deallocation_pci 2004-09-16 15:58:27.304766990 +0900
+++ linux-2.6.9-rc2-kanesige/arch/ia64/pci/pci.c 2004-09-16 15:58:27.340900085 +0900
@@ -427,6 +427,11 @@ pcibios_enable_device (struct pci_dev *d
}

void
+pcibios_disable_device (struct pci_dev *dev)
+{
+}
+
+void
pcibios_align_resource (void *data, struct resource *res,
unsigned long size, unsigned long align)
{
diff -puN arch/m68knommu/kernel/comempci.c~IRQ_deallocation_pci arch/m68knommu/kernel/comempci.c
--- linux-2.6.9-rc2/arch/m68knommu/kernel/comempci.c~IRQ_deallocation_pci 2004-09-16 15:58:27.306720130 +0900
+++ linux-2.6.9-rc2-kanesige/arch/m68knommu/kernel/comempci.c 2004-09-16 15:58:27.341876655 +0900
@@ -373,6 +373,10 @@ int pcibios_enable_device(struct pci_dev
return(0);
}

+void pcibios_disable_device(struct pci_dev *dev)
+{
+}
+
/*****************************************************************************/

void pcibios_update_resource(struct pci_dev *dev, struct resource *root, struct resource *r, int resource)
diff -puN arch/mips/pci/pci.c~IRQ_deallocation_pci arch/mips/pci/pci.c
--- linux-2.6.9-rc2/arch/mips/pci/pci.c~IRQ_deallocation_pci 2004-09-16 15:58:27.308673271 +0900
+++ linux-2.6.9-rc2-kanesige/arch/mips/pci/pci.c 2004-09-16 15:58:27.341876655 +0900
@@ -226,6 +226,10 @@ int pcibios_enable_device(struct pci_dev
return 0;
}

+void pcibios_disable_device(struct pci_dev *dev)
+{
+}
+
static void __init pcibios_fixup_device_resources(struct pci_dev *dev,
struct pci_bus *bus)
{
diff -puN arch/mips/pmc-sierra/yosemite/ht.c~IRQ_deallocation_pci arch/mips/pmc-sierra/yosemite/ht.c
--- linux-2.6.9-rc2/arch/mips/pmc-sierra/yosemite/ht.c~IRQ_deallocation_pci 2004-09-16 15:58:27.311602981 +0900
+++ linux-2.6.9-rc2-kanesige/arch/mips/pmc-sierra/yosemite/ht.c 2004-09-16 15:58:27.342853226 +0900
@@ -348,6 +348,11 @@ int pcibios_enable_device(struct pci_dev
}


+void pcibios_disable_device(struct pci_dev *dev)
+{
+}
+
+

void pcibios_update_resource(struct pci_dev *dev, struct resource *root,
struct resource *res, int resource)
diff -puN arch/parisc/kernel/pci.c~IRQ_deallocation_pci arch/parisc/kernel/pci.c
--- linux-2.6.9-rc2/arch/parisc/kernel/pci.c~IRQ_deallocation_pci 2004-09-16 15:58:27.313556121 +0900
+++ linux-2.6.9-rc2-kanesige/arch/parisc/kernel/pci.c 2004-09-16 15:58:27.343829796 +0900
@@ -331,6 +331,12 @@ int pcibios_enable_device(struct pci_dev
}


+void
+pcibios_disable_device(struct pci_dev *dev)
+{
+}
+
+
/* PA-RISC specific */
void pcibios_register_hba(struct pci_hba_data *hba)
{
diff -puN arch/ppc64/kernel/pci.c~IRQ_deallocation_pci arch/ppc64/kernel/pci.c
--- linux-2.6.9-rc2/arch/ppc64/kernel/pci.c~IRQ_deallocation_pci 2004-09-16 15:58:27.315509262 +0900
+++ linux-2.6.9-rc2-kanesige/arch/ppc64/kernel/pci.c 2004-09-16 15:58:27.343829796 +0900
@@ -348,6 +348,11 @@ int pcibios_enable_device(struct pci_dev
return 0;
}

+void
+pcibios_disable_device(struct pci_dev *dev)
+{
+}
+
/*
* Return the domain number for this bus.
*/
diff -puN arch/ppc/kernel/pci.c~IRQ_deallocation_pci arch/ppc/kernel/pci.c
--- linux-2.6.9-rc2/arch/ppc/kernel/pci.c~IRQ_deallocation_pci 2004-09-16 15:58:27.318438972 +0900
+++ linux-2.6.9-rc2-kanesige/arch/ppc/kernel/pci.c 2004-09-16 15:58:27.344806366 +0900
@@ -1430,6 +1430,11 @@ int pcibios_enable_device(struct pci_dev
return 0;
}

+void
+pcibios_disable_device(struct pci_dev *dev)
+{
+}
+
struct pci_controller*
pci_bus_to_hose(int bus)
{
diff -puN arch/sh64/kernel/pcibios.c~IRQ_deallocation_pci arch/sh64/kernel/pcibios.c
--- linux-2.6.9-rc2/arch/sh64/kernel/pcibios.c~IRQ_deallocation_pci 2004-09-16 15:58:27.320392112 +0900
+++ linux-2.6.9-rc2-kanesige/arch/sh64/kernel/pcibios.c 2004-09-16 15:58:27.345782936 +0900
@@ -142,6 +142,11 @@ int pcibios_enable_device(struct pci_dev
return 0;
}

+void
+pcibios_disable_device(struct pci_dev *dev)
+{
+}
+
/*
* If we set up a device for bus mastering, we need to check and set
* the latency timer as it may not be properly set.
diff -puN arch/sh/boards/overdrive/galileo.c~IRQ_deallocation_pci arch/sh/boards/overdrive/galileo.c
--- linux-2.6.9-rc2/arch/sh/boards/overdrive/galileo.c~IRQ_deallocation_pci 2004-09-16 15:58:27.322345253 +0900
+++ linux-2.6.9-rc2-kanesige/arch/sh/boards/overdrive/galileo.c 2004-09-16 15:58:27.346759506 +0900
@@ -529,6 +529,10 @@ int pcibios_enable_device(struct pci_dev

}

+void pcibios_disable_device(struct pci_dev *dev)
+{
+}
+
/* We should do some optimisation work here I think. Ok for now though */
void __init pcibios_fixup_bus(struct pci_bus *bus)
{
diff -puN arch/sh/drivers/pci/pci.c~IRQ_deallocation_pci arch/sh/drivers/pci/pci.c
--- linux-2.6.9-rc2/arch/sh/drivers/pci/pci.c~IRQ_deallocation_pci 2004-09-16 15:58:27.324298393 +0900
+++ linux-2.6.9-rc2-kanesige/arch/sh/drivers/pci/pci.c 2004-09-16 15:58:27.346759506 +0900
@@ -127,6 +127,10 @@ int pcibios_enable_device(struct pci_dev
return 0;
}

+void pcibios_disable_device(struct pci_dev *dev)
+{
+}
+
/*
* If we set up a device for bus mastering, we need to check and set
* the latency timer as it may not be properly set.
diff -puN arch/sparc64/kernel/pci.c~IRQ_deallocation_pci arch/sparc64/kernel/pci.c
--- linux-2.6.9-rc2/arch/sparc64/kernel/pci.c~IRQ_deallocation_pci 2004-09-16 15:58:27.327228103 +0900
+++ linux-2.6.9-rc2-kanesige/arch/sparc64/kernel/pci.c 2004-09-16 15:58:27.347736076 +0900
@@ -502,6 +502,10 @@ int pcibios_enable_device(struct pci_dev
return 0;
}

+void pcibios_disable_device(struct pci_dev *pdev)
+{
+}
+
void pcibios_resource_to_bus(struct pci_dev *pdev, struct pci_bus_region *region,
struct resource *res)
{
diff -puN arch/sparc/kernel/pcic.c~IRQ_deallocation_pci arch/sparc/kernel/pcic.c
--- linux-2.6.9-rc2/arch/sparc/kernel/pcic.c~IRQ_deallocation_pci 2004-09-16 15:58:27.329181244 +0900
+++ linux-2.6.9-rc2-kanesige/arch/sparc/kernel/pcic.c 2004-09-16 15:58:27.348712646 +0900
@@ -871,6 +871,10 @@ int pcibios_enable_device(struct pci_dev
return 0;
}

+void pcibios_disable_device(struct pci_dev *pdev)
+{
+}
+
/*
* NMI
*/
diff -puN arch/v850/kernel/rte_mb_a_pci.c~IRQ_deallocation_pci arch/v850/kernel/rte_mb_a_pci.c
--- linux-2.6.9-rc2/arch/v850/kernel/rte_mb_a_pci.c~IRQ_deallocation_pci 2004-09-16 15:58:27.331134384 +0900
+++ linux-2.6.9-rc2-kanesige/arch/v850/kernel/rte_mb_a_pci.c 2004-09-16 15:58:27.349689217 +0900
@@ -247,6 +247,12 @@ int __nomods_init pcibios_enable_device
return 0;
}

+
+void
+pcibios_disable_device(struct pci_dev *dev)
+{
+}
+

/* Resource allocation. */
static void __devinit pcibios_assign_resources (void)
diff -puN drivers/pci/pci.c~IRQ_deallocation_pci drivers/pci/pci.c
--- linux-2.6.9-rc2/drivers/pci/pci.c~IRQ_deallocation_pci 2004-09-16 15:58:27.333087524 +0900
+++ linux-2.6.9-rc2-kanesige/drivers/pci/pci.c 2004-09-16 15:58:27.349689217 +0900
@@ -406,6 +406,8 @@ pci_disable_device(struct pci_dev *dev)
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}
+
+ pcibios_disable_device(dev);
}

/**
diff -puN include/linux/pci.h~IRQ_deallocation_pci include/linux/pci.h
--- linux-2.6.9-rc2/include/linux/pci.h~IRQ_deallocation_pci 2004-09-16 15:58:27.336017235 +0900
+++ linux-2.6.9-rc2-kanesige/include/linux/pci.h 2004-09-16 15:58:27.350665787 +0900
@@ -686,6 +686,7 @@ extern struct list_head pci_devices; /*

void pcibios_fixup_bus(struct pci_bus *);
int pcibios_enable_device(struct pci_dev *, int mask);
+void pcibios_disable_device(struct pci_dev *);
char *pcibios_setup (char *str);

/* Used only when drivers/pci/setup.c is used */

_


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