[PATCH] Make sparc64 use setup-res.c

There were three changes necessary in order to allow
sparc64 to use setup-res.c:

1) Sparc64 roots the PCI I/O and MEM address space using
   parent resources contained in the PCI controller structure.
   I'm actually surprised no other platforms do this, especially
   ones like Alpha and PPC{,64}.  These resources get linked into the
   iomem/ioport tree when PCI controllers are probed.

   So the hierarchy looks like this:

   iomem --|
	   PCI controller 1 MEM space --|
				        device 1
					device 2
					etc.
	   PCI controller 2 MEM space --|
				        ...
   ioport --|
            PCI controller 1 IO space --|
					...
            PCI controller 2 IO space --|
					...

   You get the idea.  The drivers/pci/setup-res.c code allocates
   using plain iomem_space and ioport_space as the root, so that
   wouldn't work with the above setup.

   So I added a pcibios_select_root() that is used to handle this.
   It uses the PCI controller struct's io_space and mem_space on
   sparc64, and io{port,mem}_resource on every other platform to
   keep current behavior.

2) quirk_io_region() is buggy.  It takes in raw BUS view addresses
   and tries to use them as a PCI resource.

   pci_claim_resource() expects the resource to be fully formed when
   it gets called.  The sparc64 implementation would do the translation
   but that's absolutely wrong, because if the same resource gets
   released then re-claimed we'll adjust things twice.

   So I fixed up quirk_io_region() to do the proper pcibios_bus_to_resource()
   conversion before passing it on to pci_claim_resource().

3) I was mistakedly __init'ing the function methods the PCI controller
   drivers provide on sparc64 to implement some parts of these
   routines.  This was, of course, easy to fix.

So we end up with the following, and that nasty SPARC64 makefile
ifdef in drivers/pci/Makefile is finally zapped.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 24 insertions, 24 deletions

diff --git a/arch/sparc64/kernel/pci_schizo.c b/arch/sparc64/kernel/pci_schizo.c
index 6a182bb..331382e 100644
--- a/arch/sparc64/kernel/pci_schizo.c
+++ b/arch/sparc64/kernel/pci_schizo.c
@@ -285,7 +285,7 @@ static unsigned char schizo_pil_table[] = {
 /*0x3f*/0,		/* Reserved for NewLink		*/
 };
 
-static int __init schizo_ino_to_pil(struct pci_dev *pdev, unsigned int ino)
+static int schizo_ino_to_pil(struct pci_dev *pdev, unsigned int ino)
 {
 	int ret;
 
@@ -1221,7 +1221,7 @@ static irqreturn_t schizo_safarierr_intr(int irq, void *dev_id, struct pt_regs *
  * PCI bus units of the same Tomatillo.  I still have not really
  * figured this out...
  */
-static void __init tomatillo_register_error_handlers(struct pci_controller_info *p)
+static void tomatillo_register_error_handlers(struct pci_controller_info *p)
 {
 	struct pci_pbm_info *pbm;
 	unsigned int irq;
@@ -1359,7 +1359,7 @@ static void __init tomatillo_register_error_handlers(struct pci_controller_info
 		     (SCHIZO_SAFIRQCTRL_EN | (BUS_ERROR_UNMAP)));
 }
 
-static void __init schizo_register_error_handlers(struct pci_controller_info *p)
+static void schizo_register_error_handlers(struct pci_controller_info *p)
 {
 	struct pci_pbm_info *pbm;
 	unsigned int irq;
@@ -1505,7 +1505,7 @@ static void __init schizo_register_error_handlers(struct pci_controller_info *p)
 		     (SCHIZO_SAFIRQCTRL_EN | (BUS_ERROR_UNMAP)));
 }
 
-static void __init pbm_config_busmastering(struct pci_pbm_info *pbm)
+static void pbm_config_busmastering(struct pci_pbm_info *pbm)
 {
 	u8 *addr;
 
@@ -1522,8 +1522,8 @@ static void __init pbm_config_busmastering(struct pci_pbm_info *pbm)
 	pci_config_write8(addr, 64);
 }
 
-static void __init pbm_scan_bus(struct pci_controller_info *p,
-				struct pci_pbm_info *pbm)
+static void pbm_scan_bus(struct pci_controller_info *p,
+			 struct pci_pbm_info *pbm)
 {
 	struct pcidev_cookie *cookie = kmalloc(sizeof(*cookie), GFP_KERNEL);
 
@@ -1550,8 +1550,8 @@ static void __init pbm_scan_bus(struct pci_controller_info *p,
 	pci_setup_busmastering(pbm, pbm->pci_bus);
 }
 
-static void __init __schizo_scan_bus(struct pci_controller_info *p,
-				     int chip_type)
+static void __schizo_scan_bus(struct pci_controller_info *p,
+			      int chip_type)
 {
 	if (!p->pbm_B.prom_node || !p->pbm_A.prom_node) {
 		printk("PCI: Only one PCI bus module of controller found.\n");
@@ -1577,17 +1577,17 @@ static void __init __schizo_scan_bus(struct pci_controller_info *p,
 		schizo_register_error_handlers(p);
 }
 
-static void __init schizo_scan_bus(struct pci_controller_info *p)
+static void schizo_scan_bus(struct pci_controller_info *p)
 {
 	__schizo_scan_bus(p, PBM_CHIP_TYPE_SCHIZO);
 }
 
-static void __init tomatillo_scan_bus(struct pci_controller_info *p)
+static void tomatillo_scan_bus(struct pci_controller_info *p)
 {
 	__schizo_scan_bus(p, PBM_CHIP_TYPE_TOMATILLO);
 }
 
-static void __init schizo_base_address_update(struct pci_dev *pdev, int resource)
+static void schizo_base_address_update(struct pci_dev *pdev, int resource)
 {
 	struct pcidev_cookie *pcp = pdev->sysdata;
 	struct pci_pbm_info *pbm = pcp->pbm;
@@ -1632,9 +1632,9 @@ static void __init schizo_base_address_update(struct pci_dev *pdev, int resource
 		pci_write_config_dword(pdev, where + 4, 0);
 }
 
-static void __init schizo_resource_adjust(struct pci_dev *pdev,
-					  struct resource *res,
-					  struct resource *root)
+static void schizo_resource_adjust(struct pci_dev *pdev,
+				   struct resource *res,
+				   struct resource *root)
 {
 	res->start += root->start;
 	res->end += root->start;
@@ -1702,8 +1702,8 @@ static void schizo_determine_mem_io_space(struct pci_pbm_info *pbm)
 	       pbm->mem_space.start);
 }
 
-static void __init pbm_register_toplevel_resources(struct pci_controller_info *p,
-						   struct pci_pbm_info *pbm)
+static void pbm_register_toplevel_resources(struct pci_controller_info *p,
+					    struct pci_pbm_info *pbm)
 {
 	pbm->io_space.name = pbm->mem_space.name = pbm->name;
 
@@ -1932,7 +1932,7 @@ static void schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
 #define TOMATILLO_PCI_IOC_TDIAG		(0x2250UL)
 #define TOMATILLO_PCI_IOC_DDIAG		(0x2290UL)
 
-static void __init schizo_pbm_hw_init(struct pci_pbm_info *pbm)
+static void schizo_pbm_hw_init(struct pci_pbm_info *pbm)
 {
 	u64 tmp;
 
@@ -1986,9 +1986,9 @@ static void __init schizo_pbm_hw_init(struct pci_pbm_info *pbm)
 	}
 }
 
-static void __init schizo_pbm_init(struct pci_controller_info *p,
-				   int prom_node, u32 portid,
-				   int chip_type)
+static void schizo_pbm_init(struct pci_controller_info *p,
+			    int prom_node, u32 portid,
+			    int chip_type)
 {
 	struct linux_prom64_registers pr_regs[4];
 	unsigned int busrange[2];
@@ -2145,7 +2145,7 @@ static inline int portid_compare(u32 x, u32 y, int chip_type)
 	return (x == y);
 }
 
-static void __init __schizo_init(int node, char *model_name, int chip_type)
+static void __schizo_init(int node, char *model_name, int chip_type)
 {
 	struct pci_controller_info *p;
 	struct pci_iommu *iommu;
@@ -2213,17 +2213,17 @@ static void __init __schizo_init(int node, char *model_name, int chip_type)
 	schizo_pbm_init(p, node, portid, chip_type);
 }
 
-void __init schizo_init(int node, char *model_name)
+void schizo_init(int node, char *model_name)
 {
 	__schizo_init(node, model_name, PBM_CHIP_TYPE_SCHIZO);
 }
 
-void __init schizo_plus_init(int node, char *model_name)
+void schizo_plus_init(int node, char *model_name)
 {
 	__schizo_init(node, model_name, PBM_CHIP_TYPE_SCHIZO_PLUS);
 }
 
-void __init tomatillo_init(int node, char *model_name)
+void tomatillo_init(int node, char *model_name)
 {
 	__schizo_init(node, model_name, PBM_CHIP_TYPE_TOMATILLO);
 }