/* $NetBSD: i80321_space.c,v 1.6 2003/10/06 15:43:35 thorpej Exp $ */ /*- * Copyright (c) 2001, 2002 Wasabi Systems, Inc. * All rights reserved. * * Written by Jason R. Thorpe for Wasabi Systems, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed for the NetBSD Project by * Wasabi Systems, Inc. * 4. The name of Wasabi Systems, Inc. may not be used to endorse * or promote products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * bus_space functions for i81342 I/O Processor. */ #include __FBSDID("$FreeBSD: head/sys/arm/xscale/i8134x/i81342_space.c 277478 2015-01-21 05:10:23Z ian $"); #include #include #include #include #include #include #include #include #include #include #include #include #include /* Prototypes for all the bus_space structure functions */ bs_protos(i81342); bs_protos(i81342_io); bs_protos(i81342_mem); void i81342_bs_init(bus_space_tag_t bs, void *cookie) { *bs = *arm_base_bs_tag; bs->bs_privdata = cookie; } void i81342_io_bs_init(bus_space_tag_t bs, void *cookie) { *bs = *arm_base_bs_tag; bs->bs_privdata = cookie; bs->bs_map = i81342_io_bs_map; bs->bs_unmap = i81342_io_bs_unmap; bs->bs_alloc = i81342_io_bs_alloc; bs->bs_free = i81342_io_bs_free; } void i81342_mem_bs_init(bus_space_tag_t bs, void *cookie) { *bs = *arm_base_bs_tag; bs->bs_privdata = cookie; bs->bs_map = i81342_mem_bs_map; bs->bs_unmap = i81342_mem_bs_unmap; bs->bs_alloc = i81342_mem_bs_alloc; bs->bs_free = i81342_mem_bs_free; } /* *** Routines shared by i81342, PCI IO, and PCI MEM. *** */ int i81342_bs_subregion(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t offset, bus_size_t size, bus_space_handle_t *nbshp) { *nbshp = bsh + offset; return (0); } void i81342_bs_barrier(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t offset, bus_size_t len, int flags) { /* Nothing to do. */ } /* *** Routines for PCI IO. *** */ int i81342_io_bs_map(bus_space_tag_t tag, bus_addr_t bpa, bus_size_t size, int flags, bus_space_handle_t *bshp) { *bshp = bpa; return (0); } void i81342_io_bs_unmap(bus_space_tag_t tag, bus_space_handle_t h, bus_size_t size) { /* Nothing to do. */ } int i81342_io_bs_alloc(bus_space_tag_t tag, bus_addr_t rstart, bus_addr_t rend, bus_size_t size, bus_size_t alignment, bus_size_t boundary, int flags, bus_addr_t *bpap, bus_space_handle_t *bshp) { panic("i81342_io_bs_alloc(): not implemented"); } void i81342_io_bs_free(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t size) { panic("i81342_io_bs_free(): not implemented"); } /* *** Routines for PCI MEM. *** */ extern int badaddr_read(void *, int, void *); static vm_offset_t allocable = 0xe1000000; int i81342_mem_bs_map(bus_space_tag_t tag, bus_addr_t bpa, bus_size_t size, int flags, bus_space_handle_t *bshp) { struct i81342_pci_softc *sc = (struct i81342_pci_softc *)tag->bs_privdata; struct i81342_pci_map *tmp; vm_offset_t addr, endaddr; vm_paddr_t paddr; /* Lookup to see if we already have a mapping at this address. */ tmp = sc->sc_pci_mappings; while (tmp) { if (tmp->paddr <= bpa && tmp->paddr + tmp->size > bpa + size) { *bshp = bpa - tmp->paddr + tmp->vaddr; return (0); } tmp = tmp->next; } addr = allocable; endaddr = ((addr + size) &~ (0x1000000 - 1)) + 0x1000000; if (endaddr >= IOP34X_VADDR) panic("PCI virtual memory exhausted"); allocable = endaddr; tmp = malloc(sizeof(*tmp), M_DEVBUF, M_WAITOK); tmp->next = NULL; paddr = bpa &~ (0x100000 - 1); tmp->paddr = paddr; tmp->vaddr = addr; tmp->size = 0; while (addr < endaddr) { pmap_kenter_supersection(addr, paddr + (sc->sc_is_atux ? IOP34X_PCIX_OMBAR : IOP34X_PCIE_OMBAR), 0); addr += 0x1000000; paddr += 0x1000000; tmp->size += 0x1000000; } tmp->next = sc->sc_pci_mappings; sc->sc_pci_mappings = tmp; *bshp = bpa - tmp->paddr + tmp->vaddr; return (0); } void i81342_mem_bs_unmap(bus_space_tag_t tag, bus_space_handle_t h, bus_size_t size) { #if 0 vm_offset_t va, endva; va = trunc_page((vm_offset_t)h); endva = va + round_page(size); /* Free the kernel virtual mapping. */ kva_free(va, endva - va); #endif } int i81342_mem_bs_alloc(bus_space_tag_t tag, bus_addr_t rstart, bus_addr_t rend, bus_size_t size, bus_size_t alignment, bus_size_t boundary, int flags, bus_addr_t *bpap, bus_space_handle_t *bshp) { panic("i81342_mem_bs_alloc(): not implemented"); } void i81342_mem_bs_free(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t size) { panic("i81342_mem_bs_free(): not implemented"); }