Commit c2609267 authored by David S. Miller's avatar David S. Miller
Browse files

[SPARC64]: Implement basic pci_sun4v_scan_bus(). 



Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3833789b

arch/sparc64/kernel/pci_sun4v.c

+46 −3
Original line number Diff line number Diff line
@@ -566,9 +566,50 @@ static struct pci_ops pci_sun4v_ops = { 
};





static void pbm_scan_bus(struct pci_controller_info *p,

			 struct pci_pbm_info *pbm)

{

	struct pcidev_cookie *cookie = kmalloc(sizeof(*cookie), GFP_KERNEL);



	if (!cookie) {

		prom_printf("%s: Critical allocation failure.\n", pbm->name);

		prom_halt();

	}



	/* All we care about is the PBM. */

	memset(cookie, 0, sizeof(*cookie));

	cookie->pbm = pbm;



	pbm->pci_bus = pci_scan_bus(pbm->pci_first_busno,

				    p->pci_ops,

				    pbm);

	pci_fixup_host_bridge_self(pbm->pci_bus);

	pbm->pci_bus->self->sysdata = cookie;



	pci_fill_in_pbm_cookies(pbm->pci_bus, pbm, pbm->prom_node);

	pci_record_assignments(pbm, pbm->pci_bus);

	pci_assign_unassigned(pbm, pbm->pci_bus);

	pci_fixup_irq(pbm, pbm->pci_bus);

	pci_determine_66mhz_disposition(pbm, pbm->pci_bus);

	pci_setup_busmastering(pbm, pbm->pci_bus);

}



static void pci_sun4v_scan_bus(struct pci_controller_info *p)

{

	/* XXX Implement me! XXX */

	if (p->pbm_A.prom_node) {

		p->pbm_A.is_66mhz_capable =

			prom_getbool(p->pbm_A.prom_node, "66mhz-capable");



		pbm_scan_bus(p, &p->pbm_A);

	}

	if (p->pbm_B.prom_node) {

		p->pbm_B.is_66mhz_capable =

			prom_getbool(p->pbm_B.prom_node, "66mhz-capable");



		pbm_scan_bus(p, &p->pbm_B);

	}



	/* XXX register error interrupt handlers XXX */

}



static unsigned int pci_sun4v_irq_build(struct pci_pbm_info *pbm,
@@ -579,7 +620,6 @@ static unsigned int pci_sun4v_irq_build(struct pci_pbm_info *pbm, 
	return 0;

}



/* XXX correct? XXX */

static void pci_sun4v_base_address_update(struct pci_dev *pdev, int resource)

{

	struct pcidev_cookie *pcp = pdev->sysdata;
@@ -598,6 +638,7 @@ static void pci_sun4v_base_address_update(struct pci_dev *pdev, int resource) 
		return;

	}



	/* XXX 64-bit MEM handling is not %100 correct... XXX */

	is_64bit = 0;

	if (res->flags & IORESOURCE_IO)

		root = &pbm->io_space;
@@ -625,7 +666,6 @@ static void pci_sun4v_base_address_update(struct pci_dev *pdev, int resource) 
		pci_write_config_dword(pdev, where + 4, 0);

}



/* XXX correct? XXX */

static void pci_sun4v_resource_adjust(struct pci_dev *pdev,

				      struct resource *res,

				      struct resource *root)
@@ -668,6 +708,9 @@ static void pci_sun4v_determine_mem_io_space(struct pci_pbm_info *pbm) 
			saw_mem = 1;

			break;



		case 3:

			/* XXX 64-bit MEM handling XXX */



		default:

			break;

		};