/* $NetBSD: bus.h,v 1.12 1997/10/01 08:25:15 fvdl Exp $ */ /*- * $Id: bus.h,v 1.6 2007/08/09 11:23:32 katta Exp $ * * SPDX-License-Identifier: BSD-2-Clause AND BSD-4-Clause * * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, * NASA Ames Research Center. * * 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. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``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 THE FOUNDATION OR CONTRIBUTORS * 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. */ /* * Copyright (c) 1996 Charles M. Hannum. All rights reserved. * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved. * * 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 by Christopher G. Demetriou * for the NetBSD Project. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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. * * from: src/sys/alpha/include/bus.h,v 1.5 1999/08/28 00:38:40 peter */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static struct bus_space octopci_space = { /* cookie */ (void *) 0, /* mapping/unmapping */ octopci_bs_map, octopci_bs_unmap, octopci_bs_subregion, /* allocation/deallocation */ NULL, NULL, /* barrier */ octopci_bs_barrier, /* read (single) */ octopci_bs_r_1, octopci_bs_r_2, octopci_bs_r_4, NULL, /* read multiple */ octopci_bs_rm_1, octopci_bs_rm_2, octopci_bs_rm_4, NULL, /* read region */ octopci_bs_rr_1, octopci_bs_rr_2, octopci_bs_rr_4, NULL, /* write (single) */ octopci_bs_w_1, octopci_bs_w_2, octopci_bs_w_4, NULL, /* write multiple */ octopci_bs_wm_1, octopci_bs_wm_2, octopci_bs_wm_4, NULL, /* write region */ NULL, octopci_bs_wr_2, octopci_bs_wr_4, NULL, /* set multiple */ NULL, NULL, NULL, NULL, /* set region */ NULL, octopci_bs_sr_2, octopci_bs_sr_4, NULL, /* copy */ NULL, octopci_bs_c_2, NULL, NULL, /* read (single) stream */ octopci_bs_r_1, octopci_bs_r_2, octopci_bs_r_4, NULL, /* read multiple stream */ octopci_bs_rm_1, octopci_bs_rm_2, octopci_bs_rm_4, NULL, /* read region stream */ octopci_bs_rr_1, octopci_bs_rr_2, octopci_bs_rr_4, NULL, /* write (single) stream */ octopci_bs_w_1, octopci_bs_w_2, octopci_bs_w_4, NULL, /* write multiple stream */ octopci_bs_wm_1, octopci_bs_wm_2, octopci_bs_wm_4, NULL, /* write region stream */ NULL, octopci_bs_wr_2, octopci_bs_wr_4, NULL, }; #define rd8(a) cvmx_read64_uint8(a) #define rd16(a) le16toh(cvmx_read64_uint16(a)) #define rd32(a) le32toh(cvmx_read64_uint32(a)) #define wr8(a, v) cvmx_write64_uint8(a, v) #define wr16(a, v) cvmx_write64_uint16(a, htole16(v)) #define wr32(a, v) cvmx_write64_uint32(a, htole32(v)) /* octopci bus_space tag */ bus_space_tag_t octopci_bus_space = &octopci_space; int octopci_bs_map(void *t __unused, bus_addr_t addr, bus_size_t size __unused, int flags __unused, bus_space_handle_t *bshp) { *bshp = addr; return (0); } void octopci_bs_unmap(void *t __unused, bus_space_handle_t bh __unused, bus_size_t size __unused) { /* Do nothing */ } int octopci_bs_subregion(void *t __unused, bus_space_handle_t handle, bus_size_t offset, bus_size_t size __unused, bus_space_handle_t *bshp) { *bshp = handle + offset; return (0); } uint8_t octopci_bs_r_1(void *t, bus_space_handle_t handle, bus_size_t offset) { return (rd8(handle + offset)); } uint16_t octopci_bs_r_2(void *t, bus_space_handle_t handle, bus_size_t offset) { return (rd16(handle + offset)); } uint32_t octopci_bs_r_4(void *t, bus_space_handle_t handle, bus_size_t offset) { return (rd32(handle + offset)); } void octopci_bs_rm_1(void *t, bus_space_handle_t bsh, bus_size_t offset, uint8_t *addr, size_t count) { while (count--) *addr++ = rd8(bsh + offset); } void octopci_bs_rm_2(void *t, bus_space_handle_t bsh, bus_size_t offset, uint16_t *addr, size_t count) { bus_addr_t baddr = bsh + offset; while (count--) *addr++ = rd16(baddr); } void octopci_bs_rm_4(void *t, bus_space_handle_t bsh, bus_size_t offset, uint32_t *addr, size_t count) { bus_addr_t baddr = bsh + offset; while (count--) *addr++ = rd32(baddr); } /* * Read `count' 1, 2, 4, or 8 byte quantities from bus space * described by tag/handle and starting at `offset' and copy into * buffer provided. */ void octopci_bs_rr_1(void *t, bus_space_handle_t bsh, bus_size_t offset, uint8_t *addr, size_t count) { bus_addr_t baddr = bsh + offset; while (count--) { *addr++ = rd8(baddr); baddr += 1; } } void octopci_bs_rr_2(void *t, bus_space_handle_t bsh, bus_size_t offset, uint16_t *addr, size_t count) { bus_addr_t baddr = bsh + offset; while (count--) { *addr++ = rd16(baddr); baddr += 2; } } void octopci_bs_rr_4(void *t, bus_space_handle_t bsh, bus_size_t offset, uint32_t *addr, size_t count) { bus_addr_t baddr = bsh + offset; while (count--) { *addr++ = rd32(baddr); baddr += 4; } } /* * Write the 1, 2, 4, or 8 byte value `value' to bus space * described by tag/handle/offset. */ void octopci_bs_w_1(void *t, bus_space_handle_t bsh, bus_size_t offset, uint8_t value) { wr8(bsh + offset, value); } void octopci_bs_w_2(void *t, bus_space_handle_t bsh, bus_size_t offset, uint16_t value) { wr16(bsh + offset, value); } void octopci_bs_w_4(void *t, bus_space_handle_t bsh, bus_size_t offset, uint32_t value) { wr32(bsh + offset, value); } /* * Write `count' 1, 2, 4, or 8 byte quantities from the buffer * provided to bus space described by tag/handle/offset. */ void octopci_bs_wm_1(void *t, bus_space_handle_t bsh, bus_size_t offset, const uint8_t *addr, size_t count) { bus_addr_t baddr = bsh + offset; while (count--) wr8(baddr, *addr++); } void octopci_bs_wm_2(void *t, bus_space_handle_t bsh, bus_size_t offset, const uint16_t *addr, size_t count) { bus_addr_t baddr = bsh + offset; while (count--) wr16(baddr, *addr++); } void octopci_bs_wm_4(void *t, bus_space_handle_t bsh, bus_size_t offset, const uint32_t *addr, size_t count) { bus_addr_t baddr = bsh + offset; while (count--) wr32(baddr, *addr++); } /* * Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided * to bus space described by tag/handle starting at `offset'. */ void octopci_bs_wr_1(void *t, bus_space_handle_t bsh, bus_size_t offset, const uint8_t *addr, size_t count) { bus_addr_t baddr = bsh + offset; while (count--) { wr8(baddr, *addr++); baddr += 1; } } void octopci_bs_wr_2(void *t, bus_space_handle_t bsh, bus_size_t offset, const uint16_t *addr, size_t count) { bus_addr_t baddr = bsh + offset; while (count--) { wr16(baddr, *addr++); baddr += 2; } } void octopci_bs_wr_4(void *t, bus_space_handle_t bsh, bus_size_t offset, const uint32_t *addr, size_t count) { bus_addr_t baddr = bsh + offset; while (count--) { wr32(baddr, *addr++); baddr += 4; } } /* * Write the 1, 2, 4, or 8 byte value `val' to bus space described * by tag/handle/offset `count' times. */ void octopci_bs_sm_1(void *t, bus_space_handle_t bsh, bus_size_t offset, uint8_t value, size_t count) { bus_addr_t addr = bsh + offset; while (count--) wr8(addr, value); } void octopci_bs_sm_2(void *t, bus_space_handle_t bsh, bus_size_t offset, uint16_t value, size_t count) { bus_addr_t addr = bsh + offset; while (count--) wr16(addr, value); } void octopci_bs_sm_4(void *t, bus_space_handle_t bsh, bus_size_t offset, uint32_t value, size_t count) { bus_addr_t addr = bsh + offset; while (count--) wr32(addr, value); } /* * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described * by tag/handle starting at `offset'. */ void octopci_bs_sr_1(void *t, bus_space_handle_t bsh, bus_size_t offset, uint8_t value, size_t count) { bus_addr_t addr = bsh + offset; for (; count != 0; count--, addr++) wr8(addr, value); } void octopci_bs_sr_2(void *t, bus_space_handle_t bsh, bus_size_t offset, uint16_t value, size_t count) { bus_addr_t addr = bsh + offset; for (; count != 0; count--, addr += 2) wr16(addr, value); } void octopci_bs_sr_4(void *t, bus_space_handle_t bsh, bus_size_t offset, uint32_t value, size_t count) { bus_addr_t addr = bsh + offset; for (; count != 0; count--, addr += 4) wr32(addr, value); } /* * Copy `count' 1, 2, 4, or 8 byte values from bus space starting * at tag/bsh1/off1 to bus space starting at tag/bsh2/off2. */ void octopci_bs_c_1(void *t, bus_space_handle_t bsh1, bus_size_t off1, bus_space_handle_t bsh2, bus_size_t off2, size_t count) { bus_addr_t addr1 = bsh1 + off1; bus_addr_t addr2 = bsh2 + off2; if (addr1 >= addr2) { /* src after dest: copy forward */ for (; count != 0; count--, addr1++, addr2++) wr8(addr2, rd8(addr1)); } else { /* dest after src: copy backwards */ for (addr1 += (count - 1), addr2 += (count - 1); count != 0; count--, addr1--, addr2--) wr8(addr2, rd8(addr1)); } } void octopci_bs_c_2(void *t, bus_space_handle_t bsh1, bus_size_t off1, bus_space_handle_t bsh2, bus_size_t off2, size_t count) { bus_addr_t addr1 = bsh1 + off1; bus_addr_t addr2 = bsh2 + off2; if (addr1 >= addr2) { /* src after dest: copy forward */ for (; count != 0; count--, addr1 += 2, addr2 += 2) wr16(addr2, rd16(addr1)); } else { /* dest after src: copy backwards */ for (addr1 += 2 * (count - 1), addr2 += 2 * (count - 1); count != 0; count--, addr1 -= 2, addr2 -= 2) wr16(addr2, rd16(addr1)); } } void octopci_bs_c_4(void *t, bus_space_handle_t bsh1, bus_size_t off1, bus_space_handle_t bsh2, bus_size_t off2, size_t count) { bus_addr_t addr1 = bsh1 + off1; bus_addr_t addr2 = bsh2 + off2; if (addr1 >= addr2) { /* src after dest: copy forward */ for (; count != 0; count--, addr1 += 4, addr2 += 4) wr32(addr2, rd32(addr1)); } else { /* dest after src: copy backwards */ for (addr1 += 4 * (count - 1), addr2 += 4 * (count - 1); count != 0; count--, addr1 -= 4, addr2 -= 4) wr32(addr2, rd32(addr1)); } } void octopci_bs_barrier(void *t __unused, bus_space_handle_t bsh __unused, bus_size_t offset __unused, bus_size_t len __unused, int flags) { #if 0 if (flags & BUS_SPACE_BARRIER_WRITE) mips_dcache_wbinv_all(); #endif }