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powerpc: Introduce ppc_pci_flags accessors 

Currently there are a number of platforms that open code access to
the ppc_pci_flags global variable.  However, that variable is not
present if CONFIG_PCI is not set, which can lead to a build break.

This introduces a number of accessor functions that are defined
to be empty in the case of CONFIG_PCI being disabled.  The
various platform files in the kernel are updated to use these.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Josh Boyer 2008-12-11 09:46:44 +00:00 committed by Paul Mackerras
parent edc72ac4a0
commit 7fe519c207
14 changed files with 42 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
arch/powerpc/include/asm/pci-bridge.h
View File

@ -13,7 +13,6 @@
struct device_node;
extern unsigned int ppc_pci_flags;
enum {
/* Force re-assigning all resources (ignore firmware
* setup completely)
@ -36,6 +35,31 @@ enum {
/* ... except for domain 0 */
PPC_PCI_COMPAT_DOMAIN_0 = 0x00000020,
};
#ifdef CONFIG_PCI
extern unsigned int ppc_pci_flags;
static inline void ppc_pci_set_flags(int flags)
{
ppc_pci_flags = flags;
}
static inline void ppc_pci_add_flags(int flags)
{
ppc_pci_flags |= flags;
}
static inline int ppc_pci_has_flag(int flag)
{
return (ppc_pci_flags & flag);
}
#else
static inline void ppc_pci_set_flags(int flags) { }
static inline void ppc_pci_add_flags(int flags) { }
static inline int ppc_pci_has_flag(int flag)
{
return 0;
}
#endif
/*

4
arch/powerpc/include/asm/pci.h
View File

@ -38,8 +38,8 @@ struct pci_dev;
* Set this to 1 if you want the kernel to re-assign all PCI
* bus numbers (don't do that on ppc64 yet !)
*/
#define pcibios_assign_all_busses() (ppc_pci_flags & \
PPC_PCI_REASSIGN_ALL_BUS)
#define pcibios_assign_all_busses() \
(ppc_pci_has_flag(PPC_PCI_REASSIGN_ALL_BUS))
#define pcibios_scan_all_fns(a, b) 0
static inline void pcibios_set_master(struct pci_dev *dev)

2
arch/powerpc/platforms/40x/ep405.c
View File

@ -100,7 +100,7 @@ static void __init ep405_setup_arch(void)
/* Find & init the BCSR CPLD */
ep405_init_bcsr();
ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC;
ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC);
}
static int __init ep405_probe(void)

2
arch/powerpc/platforms/40x/kilauea.c
View File

@ -44,7 +44,7 @@ static int __init kilauea_probe(void)
if (!of_flat_dt_is_compatible(root, "amcc,kilauea"))
return 0;
ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC;
ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC);
return 1;
}

2
arch/powerpc/platforms/40x/ppc40x_simple.c
View File

@ -61,7 +61,7 @@ static int __init ppc40x_probe(void)
for (i = 0; i < ARRAY_SIZE(board); i++) {
if (of_flat_dt_is_compatible(root, board[i])) {
ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC;
ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC);
return 1;
}
}

2
arch/powerpc/platforms/44x/ebony.c
View File

@ -54,7 +54,7 @@ static int __init ebony_probe(void)
if (!of_flat_dt_is_compatible(root, "ibm,ebony"))
return 0;
ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC;
ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC);
return 1;
}

2
arch/powerpc/platforms/44x/ppc44x_simple.c
View File

@ -69,7 +69,7 @@ static int __init ppc44x_probe(void)
for (i = 0; i < ARRAY_SIZE(board); i++) {
if (of_flat_dt_is_compatible(root, board[i])) {
ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC;
ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC);
return 1;
}
}

2
arch/powerpc/platforms/44x/sam440ep.c
View File

@ -51,7 +51,7 @@ static int __init sam440ep_probe(void)
if (!of_flat_dt_is_compatible(root, "acube,sam440ep"))
return 0;
ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC;
ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC);
return 1;
}

2
arch/powerpc/platforms/52xx/mpc52xx_pci.c
View File

@ -375,7 +375,7 @@ mpc52xx_add_bridge(struct device_node *node)
pr_debug("Adding MPC52xx PCI host bridge %s\n", node->full_name);
ppc_pci_flags |= PPC_PCI_REASSIGN_ALL_BUS;
ppc_pci_add_flags(PPC_PCI_REASSIGN_ALL_BUS);
if (of_address_to_resource(node, 0, &rsrc) != 0) {
printk(KERN_ERR "Can't get %s resources\n", node->full_name);

2
arch/powerpc/platforms/82xx/pq2.c
View File

@ -53,7 +53,7 @@ static void __init pq2_pci_add_bridge(struct device_node *np)
if (of_address_to_resource(np, 0, &r) || r.end - r.start < 0x10b)
goto err;
ppc_pci_flags |= PPC_PCI_REASSIGN_ALL_BUS;
ppc_pci_add_flags(PPC_PCI_REASSIGN_ALL_BUS);
hose = pcibios_alloc_controller(np);
if (!hose)

2
arch/powerpc/platforms/chrp/pci.c
View File

@ -199,7 +199,7 @@ static void __init setup_peg2(struct pci_controller *hose, struct device_node *d
printk ("RTAS supporting Pegasos OF not found, please upgrade"
" your firmware\n");
}
ppc_pci_flags |= PPC_PCI_REASSIGN_ALL_BUS;
ppc_pci_add_flags(PPC_PCI_REASSIGN_ALL_BUS);
/* keep the reference to the root node */
}

6
arch/powerpc/platforms/powermac/pci.c
View File

@ -729,7 +729,7 @@ static void __init setup_bandit(struct pci_controller *hose,
static int __init setup_uninorth(struct pci_controller *hose,
struct resource *addr)
{
ppc_pci_flags |= PPC_PCI_REASSIGN_ALL_BUS;
ppc_pci_add_flags(PPC_PCI_REASSIGN_ALL_BUS);
has_uninorth = 1;
hose->ops = &macrisc_pci_ops;
hose->cfg_addr = ioremap(addr->start + 0x800000, 0x1000);
@ -996,7 +996,7 @@ void __init pmac_pci_init(void)
struct device_node *np, *root;
struct device_node *ht = NULL;
ppc_pci_flags = PPC_PCI_CAN_SKIP_ISA_ALIGN;
ppc_pci_set_flags(PPC_PCI_CAN_SKIP_ISA_ALIGN);
root = of_find_node_by_path("/");
if (root == NULL) {
@ -1055,7 +1055,7 @@ void __init pmac_pci_init(void)
* some offset between bus number and domains for now when we
* assign all busses should help for now
*/
if (ppc_pci_flags & PPC_PCI_REASSIGN_ALL_BUS)
if (ppc_pci_has_flag(PPC_PCI_REASSIGN_ALL_BUS))
pcibios_assign_bus_offset = 0x10;
#endif
}

4
arch/powerpc/sysdev/fsl_pci.c
View File

@ -187,7 +187,7 @@ int __init fsl_add_bridge(struct device_node *dev, int is_primary)
printk(KERN_WARNING "Can't get bus-range for %s, assume"
" bus 0\n", dev->full_name);
ppc_pci_flags |= PPC_PCI_REASSIGN_ALL_BUS;
ppc_pci_add_flags(PPC_PCI_REASSIGN_ALL_BUS);
hose = pcibios_alloc_controller(dev);
if (!hose)
return -ENOMEM;
@ -300,7 +300,7 @@ int __init mpc83xx_add_bridge(struct device_node *dev)
" bus 0\n", dev->full_name);
}
ppc_pci_flags |= PPC_PCI_REASSIGN_ALL_BUS;
ppc_pci_add_flags(PPC_PCI_REASSIGN_ALL_BUS);
hose = pcibios_alloc_controller(dev);
if (!hose)
return -ENOMEM;

2
arch/powerpc/sysdev/grackle.c
View File

@ -57,7 +57,7 @@ void __init setup_grackle(struct pci_controller *hose)
{
setup_indirect_pci(hose, 0xfec00000, 0xfee00000, 0);
if (machine_is_compatible("PowerMac1,1"))
ppc_pci_flags |= PPC_PCI_REASSIGN_ALL_BUS;
ppc_pci_add_flags(PPC_PCI_REASSIGN_ALL_BUS);
if (machine_is_compatible("AAPL,PowerBook1998"))
grackle_set_loop_snoop(hose, 1);
#if 0 /* Disabled for now, HW problems ??? */