Commit 046e26a8 authored by David S. Miller's avatar David S. Miller
Browse files

sparc: Remove generic SBUS probing layer. 



The individual SBUS IOMMU arch code now sets the IOMMU information
directly into the OF device objects.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5059625e

arch/sparc/include/asm/io-unit.h

+0 −2
Original line number Diff line number Diff line
@@ -59,6 +59,4 @@ extern __u32 iounit_map_dma_init(struct sbus_bus *, int); 
#define iounit_map_dma_finish(sbus, addr, len) mmu_release_scsi_one(addr, len, sbus)

extern __u32 iounit_map_dma_page(__u32, void *, struct sbus_bus *);



extern void iounit_init(struct sbus_bus *sbus);



#endif /* !(_SPARC_IO_UNIT_H) */

arch/sparc/include/asm/iommu_32.h

+0 −2
Original line number Diff line number Diff line
@@ -118,6 +118,4 @@ static inline void iommu_invalidate_page(struct iommu_regs *regs, unsigned long 
	regs->pageflush = (ba & PAGE_MASK);

}



extern void iommu_init(struct device_node *dp, struct sbus_bus *sbus);



#endif /* !(_SPARC_IOMMU_H) */

arch/sparc/include/asm/irq_64.h

+0 −1
Original line number Diff line number Diff line
@@ -56,7 +56,6 @@ extern unsigned int sun4u_build_msi(u32 portid, unsigned int *virt_irq_p, 
				    unsigned long imap_base,

				    unsigned long iclr_base);

extern void sun4u_destroy_msi(unsigned int virt_irq);

extern unsigned int sbus_build_irq(void *sbus, unsigned int ino);



extern unsigned char virt_irq_alloc(unsigned int dev_handle,

				    unsigned int dev_ino);

arch/sparc/kernel/ioport.c

+0 −23
Original line number Diff line number Diff line
@@ -377,22 +377,6 @@ void sbus_dma_sync_single_for_device(struct device *dev, dma_addr_t ba, size_t s 
{

}



/* Support code for sbus_init().  */

void __init sbus_setup_iommu(struct sbus_bus *sbus, struct device_node *dp)

{

#ifndef CONFIG_SUN4

	struct device_node *parent = dp->parent;



	if (sparc_cpu_model != sun4d &&

	    parent != NULL &&

	    !strcmp(parent->name, "iommu"))

		iommu_init(parent, sbus);



	if (sparc_cpu_model == sun4d)

		iounit_init(sbus);

#endif

}



static int __init sparc_register_ioport(void)

{

	register_proc_sparc_ioport();
@@ -402,13 +386,6 @@ static int __init sparc_register_ioport(void) 


arch_initcall(sparc_register_ioport);



void __init sbus_arch_postinit(void)

{

	if (sparc_cpu_model == sun4d) {

		extern void sun4d_init_sbi_irq(void);

		sun4d_init_sbi_irq();

	}

}

#endif /* CONFIG_SBUS */



#ifdef CONFIG_PCI

arch/sparc/mm/io-unit.c

+20 −10
Original line number Diff line number Diff line
@@ -34,18 +34,10 @@ 
#define IOPERM        (IOUPTE_CACHE | IOUPTE_WRITE | IOUPTE_VALID)

#define MKIOPTE(phys) __iopte((((phys)>>4) & IOUPTE_PAGE) | IOPERM)



void __init iounit_init(struct sbus_bus *sbus)

static void __init iounit_iommu_init(struct of_device *op)

{

	struct device_node *dp = sbus->ofdev.node;

	struct iounit_struct *iounit;

	iopte_t *xpt, *xptend;

	struct of_device *op;



	op = of_find_device_by_node(dp);

	if (!op) {

		prom_printf("SUN4D: Cannot find SBI of_device.\n");

		prom_halt();

	}



	iounit = kzalloc(sizeof(struct iounit_struct), GFP_ATOMIC);

	if (!iounit) {
@@ -66,7 +58,6 @@ void __init iounit_init(struct sbus_bus *sbus) 
		prom_halt();

	}

	

	sbus->ofdev.dev.archdata.iommu = iounit;

	op->dev.archdata.iommu = iounit;

	iounit->page_table = xpt;

	spin_lock_init(&iounit->lock);
@@ -76,6 +67,25 @@ void __init iounit_init(struct sbus_bus *sbus) 
	     	iopte_val(*xpt++) = 0;

}



static int __init iounit_init(void)

{

	extern void sun4d_init_sbi_irq(void);

	struct device_node *dp;



	for_each_node_by_name(dp, "sbi") {

		struct of_device *op = of_find_device_by_node(dp);



		iounit_iommu_init(op);

		of_propagate_archdata(op);

	}



	sun4d_init_sbi_irq();



	return 0;

}



subsys_initcall(iounit_init);



/* One has to hold iounit->lock to call this */

static unsigned long iounit_get_area(struct iounit_struct *iounit, unsigned long vaddr, int size)

{