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Editing: bus_space_rmi_pci.c
/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright 2003-2011 Netlogic Microsystems (Netlogic). 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. * * THIS SOFTWARE IS PROVIDED BY Netlogic Microsystems ``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 NETLOGIC 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. * * NETLOGIC_BSD */ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include <sys/param.h> #include <sys/systm.h> #include <sys/bus.h> #include <sys/kernel.h> #include <sys/endian.h> #include <sys/malloc.h> #include <sys/ktr.h> #include <vm/vm.h> #include <vm/pmap.h> #include <vm/vm_kern.h> #include <vm/vm_extern.h> #include <machine/bus.h> #include <machine/cache.h> static int rmi_pci_bus_space_map(void *t, bus_addr_t addr, bus_size_t size, int flags, bus_space_handle_t * bshp); static void rmi_pci_bus_space_unmap(void *t, bus_space_handle_t bsh, bus_size_t size); static int rmi_pci_bus_space_subregion(void *t, bus_space_handle_t bsh, bus_size_t offset, bus_size_t size, bus_space_handle_t * nbshp); static u_int8_t rmi_pci_bus_space_read_1(void *t, bus_space_handle_t handle, bus_size_t offset); static u_int16_t rmi_pci_bus_space_read_2(void *t, bus_space_handle_t handle, bus_size_t offset); static u_int32_t rmi_pci_bus_space_read_4(void *t, bus_space_handle_t handle, bus_size_t offset); static void rmi_pci_bus_space_read_multi_1(void *t, bus_space_handle_t handle, bus_size_t offset, u_int8_t * addr, size_t count); static void rmi_pci_bus_space_read_multi_2(void *t, bus_space_handle_t handle, bus_size_t offset, u_int16_t * addr, size_t count); static void rmi_pci_bus_space_read_multi_4(void *t, bus_space_handle_t handle, bus_size_t offset, u_int32_t * addr, size_t count); static void rmi_pci_bus_space_read_region_1(void *t, bus_space_handle_t bsh, bus_size_t offset, u_int8_t * addr, size_t count); static void rmi_pci_bus_space_read_region_2(void *t, bus_space_handle_t bsh, bus_size_t offset, u_int16_t * addr, size_t count); static void rmi_pci_bus_space_read_region_4(void *t, bus_space_handle_t bsh, bus_size_t offset, u_int32_t * addr, size_t count); static void rmi_pci_bus_space_write_1(void *t, bus_space_handle_t handle, bus_size_t offset, u_int8_t value); static void rmi_pci_bus_space_write_2(void *t, bus_space_handle_t handle, bus_size_t offset, u_int16_t value); static void rmi_pci_bus_space_write_4(void *t, bus_space_handle_t handle, bus_size_t offset, u_int32_t value); static void rmi_pci_bus_space_write_multi_1(void *t, bus_space_handle_t handle, bus_size_t offset, const u_int8_t * addr, size_t count); static void rmi_pci_bus_space_write_multi_2(void *t, bus_space_handle_t handle, bus_size_t offset, const u_int16_t * addr, size_t count); static void rmi_pci_bus_space_write_multi_4(void *t, bus_space_handle_t handle, bus_size_t offset, const u_int32_t * addr, size_t count); static void rmi_pci_bus_space_write_region_2(void *t, bus_space_handle_t bsh, bus_size_t offset, const u_int16_t * addr, size_t count); static void rmi_pci_bus_space_write_region_4(void *t, bus_space_handle_t bsh, bus_size_t offset, const u_int32_t * addr, size_t count); static void rmi_pci_bus_space_set_region_2(void *t, bus_space_handle_t bsh, bus_size_t offset, u_int16_t value, size_t count); static void rmi_pci_bus_space_set_region_4(void *t, bus_space_handle_t bsh, bus_size_t offset, u_int32_t value, size_t count); static void rmi_pci_bus_space_barrier(void *tag __unused, bus_space_handle_t bsh __unused, bus_size_t offset __unused, bus_size_t len __unused, int flags); static void rmi_pci_bus_space_copy_region_2(void *t, bus_space_handle_t bsh1, bus_size_t off1, bus_space_handle_t bsh2, bus_size_t off2, size_t count); u_int8_t rmi_pci_bus_space_read_stream_1(void *t, bus_space_handle_t handle, bus_size_t offset); static u_int16_t rmi_pci_bus_space_read_stream_2(void *t, bus_space_handle_t handle, bus_size_t offset); static u_int32_t rmi_pci_bus_space_read_stream_4(void *t, bus_space_handle_t handle, bus_size_t offset); static void rmi_pci_bus_space_read_multi_stream_1(void *t, bus_space_handle_t handle, bus_size_t offset, u_int8_t * addr, size_t count); static void rmi_pci_bus_space_read_multi_stream_2(void *t, bus_space_handle_t handle, bus_size_t offset, u_int16_t * addr, size_t count); static void rmi_pci_bus_space_read_multi_stream_4(void *t, bus_space_handle_t handle, bus_size_t offset, u_int32_t * addr, size_t count); void rmi_pci_bus_space_write_stream_1(void *t, bus_space_handle_t bsh, bus_size_t offset, u_int8_t value); static void rmi_pci_bus_space_write_stream_2(void *t, bus_space_handle_t handle, bus_size_t offset, u_int16_t value); static void rmi_pci_bus_space_write_stream_4(void *t, bus_space_handle_t handle, bus_size_t offset, u_int32_t value); static void rmi_pci_bus_space_write_multi_stream_1(void *t, bus_space_handle_t handle, bus_size_t offset, const u_int8_t * addr, size_t count); static void rmi_pci_bus_space_write_multi_stream_2(void *t, bus_space_handle_t handle, bus_size_t offset, const u_int16_t * addr, size_t count); static void rmi_pci_bus_space_write_multi_stream_4(void *t, bus_space_handle_t handle, bus_size_t offset, const u_int32_t * addr, size_t count); #define TODO() printf("XLR memory bus space function '%s' unimplemented\n", __func__) static struct bus_space local_rmi_pci_bus_space = { /* cookie */ (void *)0, /* mapping/unmapping */ rmi_pci_bus_space_map, rmi_pci_bus_space_unmap, rmi_pci_bus_space_subregion, /* allocation/deallocation */ NULL, NULL, /* barrier */ rmi_pci_bus_space_barrier, /* read (single) */ rmi_pci_bus_space_read_1, rmi_pci_bus_space_read_2, rmi_pci_bus_space_read_4, NULL, /* read multiple */ rmi_pci_bus_space_read_multi_1, rmi_pci_bus_space_read_multi_2, rmi_pci_bus_space_read_multi_4, NULL, /* read region */ rmi_pci_bus_space_read_region_1, rmi_pci_bus_space_read_region_2, rmi_pci_bus_space_read_region_4, NULL, /* write (single) */ rmi_pci_bus_space_write_1, rmi_pci_bus_space_write_2, rmi_pci_bus_space_write_4, NULL, /* write multiple */ rmi_pci_bus_space_write_multi_1, rmi_pci_bus_space_write_multi_2, rmi_pci_bus_space_write_multi_4, NULL, /* write region */ NULL, rmi_pci_bus_space_write_region_2, rmi_pci_bus_space_write_region_4, NULL, /* set multiple */ NULL, NULL, NULL, NULL, /* set region */ NULL, rmi_pci_bus_space_set_region_2, rmi_pci_bus_space_set_region_4, NULL, /* copy */ NULL, rmi_pci_bus_space_copy_region_2, NULL, NULL, /* read (single) stream */ rmi_pci_bus_space_read_stream_1, rmi_pci_bus_space_read_stream_2, rmi_pci_bus_space_read_stream_4, NULL, /* read multiple stream */ rmi_pci_bus_space_read_multi_stream_1, rmi_pci_bus_space_read_multi_stream_2, rmi_pci_bus_space_read_multi_stream_4, NULL, /* read region stream */ rmi_pci_bus_space_read_region_1, rmi_pci_bus_space_read_region_2, rmi_pci_bus_space_read_region_4, NULL, /* write (single) stream */ rmi_pci_bus_space_write_stream_1, rmi_pci_bus_space_write_stream_2, rmi_pci_bus_space_write_stream_4, NULL, /* write multiple stream */ rmi_pci_bus_space_write_multi_stream_1, rmi_pci_bus_space_write_multi_stream_2, rmi_pci_bus_space_write_multi_stream_4, NULL, /* write region stream */ NULL, rmi_pci_bus_space_write_region_2, rmi_pci_bus_space_write_region_4, NULL, }; /* generic bus_space tag */ bus_space_tag_t rmi_pci_bus_space = &local_rmi_pci_bus_space; /* * Map a region of device bus space into CPU virtual address space. */ static int rmi_pci_bus_space_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); } /* * Unmap a region of device bus space. */ static void rmi_pci_bus_space_unmap(void *t __unused, bus_space_handle_t bsh __unused, bus_size_t size __unused) { } /* * Get a new handle for a subregion of an already-mapped area of bus space. */ static int rmi_pci_bus_space_subregion(void *t __unused, bus_space_handle_t bsh, bus_size_t offset, bus_size_t size __unused, bus_space_handle_t * nbshp) { *nbshp = bsh + offset; return (0); } /* * Read a 1, 2, 4, or 8 byte quantity from bus space * described by tag/handle/offset. */ static u_int8_t rmi_pci_bus_space_read_1(void *tag, bus_space_handle_t handle, bus_size_t offset) { return (u_int8_t) (*(volatile u_int8_t *)(handle + offset)); } static u_int16_t rmi_pci_bus_space_read_2(void *tag, bus_space_handle_t handle, bus_size_t offset) { u_int16_t value; value = *(volatile u_int16_t *)(handle + offset); return bswap16(value); } static u_int32_t rmi_pci_bus_space_read_4(void *tag, bus_space_handle_t handle, bus_size_t offset) { uint32_t value; value = *(volatile u_int32_t *)(handle + offset); return bswap32(value); } /* * Read `count' 1, 2, 4, or 8 byte quantities from bus space * described by tag/handle/offset and copy into buffer provided. */ static void rmi_pci_bus_space_read_multi_1(void *tag, bus_space_handle_t handle, bus_size_t offset, u_int8_t * addr, size_t count) { while (count--) { *addr = *(volatile u_int8_t *)(handle + offset); addr++; } } static void rmi_pci_bus_space_read_multi_2(void *tag, bus_space_handle_t handle, bus_size_t offset, u_int16_t * addr, size_t count) { while (count--) { *addr = *(volatile u_int16_t *)(handle + offset); *addr = bswap16(*addr); addr++; } } static void rmi_pci_bus_space_read_multi_4(void *tag, bus_space_handle_t handle, bus_size_t offset, u_int32_t * addr, size_t count) { while (count--) { *addr = *(volatile u_int32_t *)(handle + offset); *addr = bswap32(*addr); addr++; } } /* * Write the 1, 2, 4, or 8 byte value `value' to bus space * described by tag/handle/offset. */ static void rmi_pci_bus_space_write_1(void *tag, bus_space_handle_t handle, bus_size_t offset, u_int8_t value) { mips_sync(); *(volatile u_int8_t *)(handle + offset) = value; } static void rmi_pci_bus_space_write_2(void *tag, bus_space_handle_t handle, bus_size_t offset, u_int16_t value) { mips_sync(); *(volatile u_int16_t *)(handle + offset) = bswap16(value); } static void rmi_pci_bus_space_write_4(void *tag, bus_space_handle_t handle, bus_size_t offset, u_int32_t value) { mips_sync(); *(volatile u_int32_t *)(handle + offset) = bswap32(value); } /* * Write `count' 1, 2, 4, or 8 byte quantities from the buffer * provided to bus space described by tag/handle/offset. */ static void rmi_pci_bus_space_write_multi_1(void *tag, bus_space_handle_t handle, bus_size_t offset, const u_int8_t * addr, size_t count) { mips_sync(); while (count--) { (*(volatile u_int8_t *)(handle + offset)) = *addr; addr++; } } static void rmi_pci_bus_space_write_multi_2(void *tag, bus_space_handle_t handle, bus_size_t offset, const u_int16_t * addr, size_t count) { mips_sync(); while (count--) { (*(volatile u_int16_t *)(handle + offset)) = bswap16(*addr); addr++; } } static void rmi_pci_bus_space_write_multi_4(void *tag, bus_space_handle_t handle, bus_size_t offset, const u_int32_t * addr, size_t count) { mips_sync(); while (count--) { (*(volatile u_int32_t *)(handle + offset)) = bswap32(*addr); addr++; } } /* * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described * by tag/handle starting at `offset'. */ static void rmi_pci_bus_space_set_region_2(void *t, bus_space_handle_t bsh, bus_size_t offset, u_int16_t value, size_t count) { bus_addr_t addr = bsh + offset; for (; count != 0; count--, addr += 2) (*(volatile u_int16_t *)(addr)) = value; } static void rmi_pci_bus_space_set_region_4(void *t, bus_space_handle_t bsh, bus_size_t offset, u_int32_t value, size_t count) { bus_addr_t addr = bsh + offset; for (; count != 0; count--, addr += 4) (*(volatile u_int32_t *)(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. */ static void rmi_pci_bus_space_copy_region_2(void *t, bus_space_handle_t bsh1, bus_size_t off1, bus_space_handle_t bsh2, bus_size_t off2, size_t count) { TODO(); } /* * Read `count' 1, 2, 4, or 8 byte quantities from bus space * described by tag/handle/offset and copy into buffer provided. */ u_int8_t rmi_pci_bus_space_read_stream_1(void *t, bus_space_handle_t handle, bus_size_t offset) { return *((volatile u_int8_t *)(handle + offset)); } static u_int16_t rmi_pci_bus_space_read_stream_2(void *t, bus_space_handle_t handle, bus_size_t offset) { return *(volatile u_int16_t *)(handle + offset); } static u_int32_t rmi_pci_bus_space_read_stream_4(void *t, bus_space_handle_t handle, bus_size_t offset) { return (*(volatile u_int32_t *)(handle + offset)); } static void rmi_pci_bus_space_read_multi_stream_1(void *tag, bus_space_handle_t handle, bus_size_t offset, u_int8_t * addr, size_t count) { while (count--) { *addr = (*(volatile u_int8_t *)(handle + offset)); addr++; } } static void rmi_pci_bus_space_read_multi_stream_2(void *tag, bus_space_handle_t handle, bus_size_t offset, u_int16_t * addr, size_t count) { while (count--) { *addr = (*(volatile u_int16_t *)(handle + offset)); addr++; } } static void rmi_pci_bus_space_read_multi_stream_4(void *tag, bus_space_handle_t handle, bus_size_t offset, u_int32_t * addr, size_t count) { while (count--) { *addr = (*(volatile u_int32_t *)(handle + offset)); addr++; } } /* * 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 rmi_pci_bus_space_read_region_1(void *t, bus_space_handle_t bsh, bus_size_t offset, u_int8_t * addr, size_t count) { bus_addr_t baddr = bsh + offset; while (count--) { *addr++ = (*(volatile u_int8_t *)(baddr)); baddr += 1; } } void rmi_pci_bus_space_read_region_2(void *t, bus_space_handle_t bsh, bus_size_t offset, u_int16_t * addr, size_t count) { bus_addr_t baddr = bsh + offset; while (count--) { *addr++ = (*(volatile u_int16_t *)(baddr)); baddr += 2; } } void rmi_pci_bus_space_read_region_4(void *t, bus_space_handle_t bsh, bus_size_t offset, u_int32_t * addr, size_t count) { bus_addr_t baddr = bsh + offset; while (count--) { *addr++ = (*(volatile u_int32_t *)(baddr)); baddr += 4; } } void rmi_pci_bus_space_write_stream_1(void *t, bus_space_handle_t handle, bus_size_t offset, u_int8_t value) { mips_sync(); *(volatile u_int8_t *)(handle + offset) = value; } static void rmi_pci_bus_space_write_stream_2(void *t, bus_space_handle_t handle, bus_size_t offset, u_int16_t value) { mips_sync(); *(volatile u_int16_t *)(handle + offset) = value; } static void rmi_pci_bus_space_write_stream_4(void *t, bus_space_handle_t handle, bus_size_t offset, u_int32_t value) { mips_sync(); *(volatile u_int32_t *)(handle + offset) = value; } static void rmi_pci_bus_space_write_multi_stream_1(void *tag, bus_space_handle_t handle, bus_size_t offset, const u_int8_t * addr, size_t count) { mips_sync(); while (count--) { (*(volatile u_int8_t *)(handle + offset)) = *addr; addr++; } } static void rmi_pci_bus_space_write_multi_stream_2(void *tag, bus_space_handle_t handle, bus_size_t offset, const u_int16_t * addr, size_t count) { mips_sync(); while (count--) { (*(volatile u_int16_t *)(handle + offset)) = *addr; addr++; } } static void rmi_pci_bus_space_write_multi_stream_4(void *tag, bus_space_handle_t handle, bus_size_t offset, const u_int32_t * addr, size_t count) { mips_sync(); while (count--) { (*(volatile u_int32_t *)(handle + offset)) = *addr; addr++; } } void rmi_pci_bus_space_write_region_2(void *t, bus_space_handle_t bsh, bus_size_t offset, const u_int16_t * addr, size_t count) { bus_addr_t baddr = (bus_addr_t) bsh + offset; while (count--) { (*(volatile u_int16_t *)(baddr)) = *addr; addr++; baddr += 2; } } void rmi_pci_bus_space_write_region_4(void *t, bus_space_handle_t bsh, bus_size_t offset, const u_int32_t * addr, size_t count) { bus_addr_t baddr = bsh + offset; while (count--) { (*(volatile u_int32_t *)(baddr)) = *addr; addr++; baddr += 4; } } static void rmi_pci_bus_space_barrier(void *tag __unused, bus_space_handle_t bsh __unused, bus_size_t offset __unused, bus_size_t len __unused, int flags) { }
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