Date: Sat, 15 Aug 2009 22:45:46 +0000 (UTC) From: Warner Losh <imp@FreeBSD.org> To: src-committers@freebsd.org, svn-src-projects@freebsd.org Subject: svn commit: r196264 - projects/mips/sys/mips/mips Message-ID: <200908152245.n7FMjk0t092343@svn.freebsd.org>
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Author: imp Date: Sat Aug 15 22:45:46 2009 New Revision: 196264 URL: http://svn.freebsd.org/changeset/base/196264 Log: (1) Some CPUs have a range to map I/O cyces on the pci bus. So allow them to work by allowding the nexus to assign ports. (2) Remove some Octeon junk that shouldn't be necessary. Submitted by: neel@ (#1) for SB1 port. Modified: projects/mips/sys/mips/mips/nexus.c Modified: projects/mips/sys/mips/mips/nexus.c ============================================================================== --- projects/mips/sys/mips/mips/nexus.c Sat Aug 15 22:26:26 2009 (r196263) +++ projects/mips/sys/mips/mips/nexus.c Sat Aug 15 22:45:46 2009 (r196264) @@ -77,6 +77,7 @@ struct nexus_device { static struct rman irq_rman; static struct rman mem_rman; +static struct rman port_rman; static struct resource * nexus_alloc_resource(device_t, device_t, int, int *, u_long, @@ -160,6 +161,21 @@ nexus_probe(device_t dev) panic("%s: mem_rman", __func__); } + /* + * MIPS has no concept of the x86 I/O address space but some cpus + * provide a memory mapped window to access the PCI I/O BARs. + */ + port_rman.rm_start = 0; +#ifdef PCI_IOSPACE_SIZE + port_rman.rm_end = PCI_IOSPACE_SIZE - 1; +#endif + port_rman.rm_type = RMAN_ARRAY; + port_rman.rm_descr = "I/O ports"; + if (rman_init(&port_rman) != 0 || + rman_manage_region(&port_rman, 0, port_rman.rm_end) != 0) + panic("%s: port_rman", __func__); + + return (0); } @@ -225,6 +241,7 @@ nexus_print_all_resources(device_t dev) retval += resource_list_print_type(rl, "mem", SYS_RES_MEMORY, "%#lx"); retval += resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%ld"); + retval += resource_list_print_type(rl, "port", SYS_RES_IOPORT, "%#lx"); return (retval); } @@ -345,6 +362,9 @@ nexus_alloc_resource(device_t bus, devic case SYS_RES_MEMORY: rm = &mem_rman; break; + case SYS_RES_IOPORT: + rm = &port_rman; + break; default: printf("%s: unknown resource type %d\n", __func__, type); return (0); @@ -374,9 +394,6 @@ static int nexus_activate_resource(device_t bus, device_t child, int type, int rid, struct resource *r) { -#ifdef TARGET_OCTEON - uint64_t temp; -#endif /* * If this is a memory resource, track the direct mapping * in the uncached MIPS KSEG1 segment. @@ -394,13 +411,7 @@ nexus_activate_resource(device_t bus, de rman_set_virtual(r, vaddr); rman_set_bustag(r, mips_bus_space_generic); -#ifdef TARGET_OCTEON - temp = 0x0000000000000000; - temp |= (uint32_t)vaddr; - rman_set_bushandle(r, (bus_space_handle_t)temp); -#else rman_set_bushandle(r, (bus_space_handle_t)vaddr); -#endif } return (rman_activate_resource(r)); @@ -481,6 +492,12 @@ static int nexus_deactivate_resource(device_t bus, device_t child, int type, int rid, struct resource *r) { + vm_offset_t va; + + if (type == SYS_RES_MEMORY || type == SYS_RES_IOPORT) { + va = (vm_offset_t)rman_get_virtual(r); + pmap_unmapdev(va, rman_get_size(r)); + } return (rman_deactivate_resource(r)); }
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