Author: andrew Date: Mon Apr 13 14:43:10 2015 New Revision: 281494 URL: https://svnweb.freebsd.org/changeset/base/281494
Log: Bring in the start of the arm64 kernel. This is only the minimum set of files needed to boot in qemu. As such it is missing a few things. The bus_dma code is currently only stub functions with a full implementation from the development tree to follow. The gic driver has been copied as the interrupt framework is different. It is expected the two drivers will be merged by the arm intrng project, however this will need to be imported into the tree and support for arm64 would need to be added. This includes code developed by myself, SemiHalf, Ed Maste, and Robin Randhawa from ARM. This has been funded by the FreeBSD Foundation, with early development by myself in my spare time with assistance from Robin. Differential Revision: https://reviews.freebsd.org/D2199 Reviewed by: emaste, imp Relnotes: yes Sponsored by: The FreeBSD Foundation Added: head/sys/arm64/arm64/ head/sys/arm64/arm64/autoconf.c (contents, props changed) head/sys/arm64/arm64/bcopy.c (contents, props changed) head/sys/arm64/arm64/bus_machdep.c (contents, props changed) head/sys/arm64/arm64/bus_space_asm.S (contents, props changed) head/sys/arm64/arm64/busdma_machdep.c (contents, props changed) head/sys/arm64/arm64/clock.c (contents, props changed) head/sys/arm64/arm64/copyinout.S (contents, props changed) head/sys/arm64/arm64/copystr.c (contents, props changed) head/sys/arm64/arm64/cpufunc_asm.S (contents, props changed) head/sys/arm64/arm64/dump_machdep.c (contents, props changed) head/sys/arm64/arm64/elf_machdep.c (contents, props changed) head/sys/arm64/arm64/exception.S (contents, props changed) head/sys/arm64/arm64/genassym.c (contents, props changed) head/sys/arm64/arm64/gic.c (contents, props changed) head/sys/arm64/arm64/identcpu.c (contents, props changed) head/sys/arm64/arm64/in_cksum.c (contents, props changed) head/sys/arm64/arm64/intr_machdep.c (contents, props changed) head/sys/arm64/arm64/locore.S (contents, props changed) head/sys/arm64/arm64/machdep.c (contents, props changed) head/sys/arm64/arm64/mem.c (contents, props changed) head/sys/arm64/arm64/minidump_machdep.c (contents, props changed) head/sys/arm64/arm64/nexus.c (contents, props changed) head/sys/arm64/arm64/pic_if.m (contents, props changed) head/sys/arm64/arm64/pmap.c (contents, props changed) head/sys/arm64/arm64/stack_machdep.c (contents, props changed) head/sys/arm64/arm64/support.S (contents, props changed) head/sys/arm64/arm64/swtch.S (contents, props changed) head/sys/arm64/arm64/sys_machdep.c (contents, props changed) head/sys/arm64/arm64/trap.c (contents, props changed) head/sys/arm64/arm64/uio_machdep.c (contents, props changed) head/sys/arm64/arm64/vfp.c (contents, props changed) head/sys/arm64/arm64/vm_machdep.c (contents, props changed) head/sys/arm64/conf/ head/sys/arm64/conf/DEFAULTS (contents, props changed) head/sys/arm64/conf/GENERIC (contents, props changed) head/sys/arm64/include/_bus.h (contents, props changed) head/sys/arm64/include/armreg.h (contents, props changed) head/sys/arm64/include/bus.h (contents, props changed) head/sys/arm64/include/bus_dma.h (contents, props changed) head/sys/arm64/include/clock.h (contents, props changed) head/sys/arm64/include/counter.h (contents, props changed) head/sys/arm64/include/db_machdep.h (contents, props changed) head/sys/arm64/include/debug_monitor.h (contents, props changed) head/sys/arm64/include/devmap.h (contents, props changed) head/sys/arm64/include/dump.h (contents, props changed) head/sys/arm64/include/hypervisor.h (contents, props changed) head/sys/arm64/include/in_cksum.h (contents, props changed) head/sys/arm64/include/intr.h (contents, props changed) head/sys/arm64/include/kdb.h (contents, props changed) head/sys/arm64/include/machdep.h (contents, props changed) head/sys/arm64/include/md_var.h (contents, props changed) head/sys/arm64/include/memdev.h (contents, props changed) head/sys/arm64/include/metadata.h (contents, props changed) head/sys/arm64/include/ofw_machdep.h (contents, props changed) head/sys/arm64/include/resource.h (contents, props changed) head/sys/arm64/include/sf_buf.h (contents, props changed) head/sys/arm64/include/smp.h (contents, props changed) head/sys/arm64/include/stack.h (contents, props changed) head/sys/arm64/include/trap.h (contents, props changed) head/sys/arm64/include/vfp.h (contents, props changed) head/sys/conf/Makefile.arm64 (contents, props changed) head/sys/conf/files.arm64 (contents, props changed) head/sys/conf/ldscript.arm64 (contents, props changed) head/sys/conf/options.arm64 (contents, props changed) head/sys/dev/fdt/fdt_arm64.c (contents, props changed) Modified: head/sys/arm64/include/cpufunc.h head/sys/arm64/include/pmap.h head/sys/sys/kerneldump.h Added: head/sys/arm64/arm64/autoconf.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm64/arm64/autoconf.c Mon Apr 13 14:43:10 2015 (r281494) @@ -0,0 +1,90 @@ +/*- + * Copyright (c) 2015 The FreeBSD Foundation + * All rights reserved. + * + * This software was developed by Andrew Turner under + * sponsorship from the FreeBSD Foundation. + * + * 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 AUTHOR 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 AUTHOR 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. + * + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +/* + * Setup the system to run on the current machine. + * + * Configure() is called at boot time and initializes the vba + * device tables and the memory controller monitoring. Available + * devices are determined (from possibilities mentioned in ioconf.c), + * and the drivers are initialized. + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/bus.h> +#include <sys/cons.h> +#include <sys/kernel.h> + +#include <machine/intr.h> + +static void configure_first(void *); +static void configure(void *); +static void configure_final(void *); + +SYSINIT(configure1, SI_SUB_CONFIGURE, SI_ORDER_FIRST, configure_first, NULL); +/* SI_ORDER_SECOND is hookable */ +SYSINIT(configure2, SI_SUB_CONFIGURE, SI_ORDER_THIRD, configure, NULL); +/* SI_ORDER_MIDDLE is hookable */ +SYSINIT(configure3, SI_SUB_CONFIGURE, SI_ORDER_ANY, configure_final, NULL); + +/* + * Determine i/o configuration for a machine. + */ +static void +configure_first(void *dummy) +{ + + /* nexus0 is the top of the device tree */ + device_add_child(root_bus, "nexus", 0); +} + +static void +configure(void *dummy) +{ + + /* initialize new bus architecture */ + root_bus_configure(); +} + +static void +configure_final(void *dummy) +{ + arm_enable_intr(); + cninit_finish(); + + if (bootverbose) + printf("Device configuration finished.\n"); + + cold = 0; +} Added: head/sys/arm64/arm64/bcopy.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm64/arm64/bcopy.c Mon Apr 13 14:43:10 2015 (r281494) @@ -0,0 +1,139 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Chris Torek. + * + * 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. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. + * + * From: sys/powerpc/powerpc/bcopy.c + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/systm.h> + +/* + * sizeof(word) MUST BE A POWER OF TWO + * SO THAT wmask BELOW IS ALL ONES + */ +typedef long word; /* "word" used for optimal copy speed */ + +#define wsize sizeof(word) +#define wmask (wsize - 1) + +/* + * Copy a block of memory, handling overlap. + * This is the routine that actually implements + * (the portable versions of) bcopy, memcpy, and memmove. + */ +void * +memcpy(void *dst0, const void *src0, size_t length) +{ + char *dst; + const char *src; + size_t t; + + dst = dst0; + src = src0; + + if (length == 0 || dst == src) { /* nothing to do */ + goto done; + } + + /* + * Macros: loop-t-times; and loop-t-times, t>0 + */ +#define TLOOP(s) if (t) TLOOP1(s) +#define TLOOP1(s) do { s; } while (--t) + + if ((unsigned long)dst < (unsigned long)src) { + /* + * Copy forward. + */ + t = (size_t)src; /* only need low bits */ + + if ((t | (uintptr_t)dst) & wmask) { + /* + * Try to align operands. This cannot be done + * unless the low bits match. + */ + if ((t ^ (uintptr_t)dst) & wmask || length < wsize) { + t = length; + } else { + t = wsize - (t & wmask); + } + + length -= t; + TLOOP1(*dst++ = *src++); + } + /* + * Copy whole words, then mop up any trailing bytes. + */ + t = length / wsize; + TLOOP(*(word *)dst = *(const word *)src; src += wsize; + dst += wsize); + t = length & wmask; + TLOOP(*dst++ = *src++); + } else { + /* + * Copy backwards. Otherwise essentially the same. + * Alignment works as before, except that it takes + * (t&wmask) bytes to align, not wsize-(t&wmask). + */ + src += length; + dst += length; + t = (uintptr_t)src; + + if ((t | (uintptr_t)dst) & wmask) { + if ((t ^ (uintptr_t)dst) & wmask || length <= wsize) { + t = length; + } else { + t &= wmask; + } + + length -= t; + TLOOP1(*--dst = *--src); + } + t = length / wsize; + TLOOP(src -= wsize; dst -= wsize; + *(word *)dst = *(const word *)src); + t = length & wmask; + TLOOP(*--dst = *--src); + } +done: + return (dst0); +} + +void +bcopy(const void *src0, void *dst0, size_t length) +{ + + memcpy(dst0, src0, length); +} + Added: head/sys/arm64/arm64/bus_machdep.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm64/arm64/bus_machdep.c Mon Apr 13 14:43:10 2015 (r281494) @@ -0,0 +1,204 @@ +/*- + * Copyright (c) 2014 Andrew Turner + * 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 THE AUTHOR 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 AUTHOR 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. + * + */ + +#include "opt_platform.h" + +#include <sys/param.h> +__FBSDID("$FreeBSD$"); + +#include <vm/vm.h> +#include <vm/pmap.h> + +#include <machine/bus.h> + +uint8_t generic_bs_r_1(void *, bus_space_handle_t, bus_size_t); +uint16_t generic_bs_r_2(void *, bus_space_handle_t, bus_size_t); +uint32_t generic_bs_r_4(void *, bus_space_handle_t, bus_size_t); +uint64_t generic_bs_r_8(void *, bus_space_handle_t, bus_size_t); + +void generic_bs_rm_1(void *, bus_space_handle_t, bus_size_t, uint8_t *, + bus_size_t); +void generic_bs_rm_2(void *, bus_space_handle_t, bus_size_t, uint16_t *, + bus_size_t); +void generic_bs_rm_4(void *, bus_space_handle_t, bus_size_t, uint32_t *, + bus_size_t); +void generic_bs_rm_8(void *, bus_space_handle_t, bus_size_t, uint64_t *, + bus_size_t); + +void generic_bs_w_1(void *, bus_space_handle_t, bus_size_t, uint8_t); +void generic_bs_w_2(void *, bus_space_handle_t, bus_size_t, uint16_t); +void generic_bs_w_4(void *, bus_space_handle_t, bus_size_t, uint32_t); +void generic_bs_w_8(void *, bus_space_handle_t, bus_size_t, uint64_t); + +void generic_bs_wm_1(void *, bus_space_handle_t, bus_size_t, const uint8_t *, + bus_size_t); +void generic_bs_wm_2(void *, bus_space_handle_t, bus_size_t, const uint16_t *, + bus_size_t); +void generic_bs_wm_4(void *, bus_space_handle_t, bus_size_t, const uint32_t *, + bus_size_t); +void generic_bs_wm_8(void *, bus_space_handle_t, bus_size_t, const uint64_t *, + bus_size_t); + +static int +generic_bs_map(void *t, bus_addr_t bpa, bus_size_t size, int flags, + bus_space_handle_t *bshp) +{ + void *va; + + va = pmap_mapdev(bpa, size); + if (va == NULL) + return (ENOMEM); + *bshp = (bus_space_handle_t)va; + return (0); +} + +static void +generic_bs_unmap(void *t, bus_space_handle_t bsh, bus_size_t size) +{ + + pmap_unmapdev(bsh, size); +} + +static void +generic_bs_barrier(void *t, bus_space_handle_t bsh, bus_size_t offset, + bus_size_t size, int flags) +{ +} + +static int +generic_bs_subregion(void *t, bus_space_handle_t bsh, bus_size_t offset, + bus_size_t size, bus_space_handle_t *nbshp) +{ + + *nbshp = bsh + offset; + return (0); +} + +struct bus_space memmap_bus = { + /* cookie */ + .bs_cookie = NULL, + + /* mapping/unmapping */ + .bs_map = generic_bs_map, + .bs_unmap = generic_bs_unmap, + .bs_subregion = generic_bs_subregion, + + /* allocation/deallocation */ + .bs_alloc = NULL, + .bs_free = NULL, + + /* barrier */ + .bs_barrier = generic_bs_barrier, + + /* read single */ + .bs_r_1 = generic_bs_r_1, + .bs_r_2 = generic_bs_r_2, + .bs_r_4 = generic_bs_r_4, + .bs_r_8 = generic_bs_r_8, + + /* read multiple */ + .bs_rm_1 = generic_bs_rm_1, + .bs_rm_2 = generic_bs_rm_2, + .bs_rm_4 = generic_bs_rm_4, + .bs_rm_8 = generic_bs_rm_8, + + /* write single */ + .bs_w_1 = generic_bs_w_1, + .bs_w_2 = generic_bs_w_2, + .bs_w_4 = generic_bs_w_4, + .bs_w_8 = generic_bs_w_8, + + /* write multiple */ + .bs_wm_1 = generic_bs_wm_1, + .bs_wm_2 = generic_bs_wm_2, + .bs_wm_4 = generic_bs_wm_4, + .bs_wm_8 = generic_bs_wm_8, + + /* write region */ + .bs_wr_1 = NULL, + .bs_wr_2 = NULL, + .bs_wr_4 = NULL, + .bs_wr_8 = NULL, + + /* set multiple */ + .bs_sm_1 = NULL, + .bs_sm_2 = NULL, + .bs_sm_4 = NULL, + .bs_sm_8 = NULL, + + /* set region */ + .bs_sr_1 = NULL, + .bs_sr_2 = NULL, + .bs_sr_4 = NULL, + .bs_sr_8 = NULL, + + /* copy */ + .bs_c_1 = NULL, + .bs_c_2 = NULL, + .bs_c_4 = NULL, + .bs_c_8 = NULL, + + /* read single stream */ + .bs_r_1_s = NULL, + .bs_r_2_s = NULL, + .bs_r_4_s = NULL, + .bs_r_8_s = NULL, + + /* read multiple stream */ + .bs_rm_1_s = NULL, + .bs_rm_2_s = NULL, + .bs_rm_4_s = NULL, + .bs_rm_8_s = NULL, + + /* read region stream */ + .bs_rr_1_s = NULL, + .bs_rr_2_s = NULL, + .bs_rr_4_s = NULL, + .bs_rr_8_s = NULL, + + /* write single stream */ + .bs_w_1_s = NULL, + .bs_w_2_s = NULL, + .bs_w_4_s = NULL, + .bs_w_8_s = NULL, + + /* write multiple stream */ + .bs_wm_1_s = NULL, + .bs_wm_2_s = NULL, + .bs_wm_4_s = NULL, + .bs_wm_8_s = NULL, + + /* write region stream */ + .bs_wr_1_s = NULL, + .bs_wr_2_s = NULL, + .bs_wr_4_s = NULL, + .bs_wr_8_s = NULL, +}; + +#ifdef FDT +bus_space_tag_t fdtbus_bs_tag = &memmap_bus; +#endif Added: head/sys/arm64/arm64/bus_space_asm.S ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm64/arm64/bus_space_asm.S Mon Apr 13 14:43:10 2015 (r281494) @@ -0,0 +1,235 @@ +/*- + * Copyright (c) 2014 Andrew Turner + * 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 THE AUTHOR 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 AUTHOR 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. + * + */ + +#include <machine/asm.h> + +__FBSDID("$FreeBSD$"); + +ENTRY(generic_bs_r_1) + ldrb w0, [x1, x2] + ret +END(generic_bs_r_1) + +ENTRY(generic_bs_r_2) + ldrh w0, [x1, x2] + ret +END(generic_bs_r_2) + +ENTRY(generic_bs_r_4) + ldr w0, [x1, x2] + ret +END(generic_bs_r_4) + +ENTRY(generic_bs_r_8) + ldr x0, [x1, x2] + ret +END(generic_bs_r_8) + +ENTRY(generic_bs_rm_1) + /* If there is anything to read. */ + cbz x4, 2f + + /* Calculate the device address. */ + add x0, x1, x2 + /* + * x0 = The device address. + * x3 = The kernel address. + * x4 = Count + */ + + /* Read the data. */ +1: ldrb w1, [x0] + strb w1, [x3], #2 + subs x4, x4, #1 + b.ne 1b + +2: ret +END(generic_bs_rm_1) + +ENTRY(generic_bs_rm_2) + /* If there is anything to read. */ + cbz x4, 2f + + /* Calculate the device address. */ + add x0, x1, x2 + /* + * x0 = The device address. + * x3 = The kernel address. + * x4 = Count + */ + + /* Read the data. */ +1: ldrh w1, [x0] + strh w1, [x3], #2 + subs x4, x4, #1 + b.ne 1b + +2: ret +END(generic_bs_rm_2) + +ENTRY(generic_bs_rm_4) + /* If there is anything to read. */ + cbz x4, 2f + + /* Calculate the device address. */ + add x0, x1, x2 + /* + * x0 = The device address. + * x3 = The kernel address. + * x4 = Count + */ + + /* Read the data. */ +1: ldr w1, [x0] + str w1, [x3], #2 + subs x4, x4, #1 + b.ne 1b + +2: ret +END(generic_bs_rm_4) + +ENTRY(generic_bs_rm_8) + /* If there is anything to read. */ + cbz x4, 2f + + /* Calculate the device address. */ + add x0, x1, x2 + /* + * x0 = The device address. + * x3 = The kernel address. + * x4 = Count + */ + + /* Read the data. */ +1: ldr x1, [x0] + str x1, [x3], #2 + subs x4, x4, #1 + b.ne 1b + +2: ret +END(generic_bs_rm_8) + + +ENTRY(generic_bs_w_1) + strb w3, [x1, x2] + ret +END(generic_bs_w_1) + +ENTRY(generic_bs_w_2) + strh w3, [x1, x2] + ret +END(generic_bs_w_2) + +ENTRY(generic_bs_w_4) + str w3, [x1, x2] + ret +END(generic_bs_w_4) + +ENTRY(generic_bs_w_8) + str x3, [x1, x2] + ret +END(generic_bs_w_8) + +ENTRY(generic_bs_wm_1) + /* If there is anything to write. */ + cbz x4, 2f + + add x0, x1, x2 + /* + * x0 = The device address. + * x3 = The kernel address. + * x4 = Count + */ + + /* Write the data */ +1: ldrb w1, [x3], #1 + strb w1, [x0] + subs x4, x4, #1 + b.ne 1b + +2: ret +END(generic_bs_wm_1) + +ENTRY(generic_bs_wm_2) + /* If there is anything to write. */ + cbz x4, 2f + + add x0, x1, x2 + /* + * x0 = The device address. + * x3 = The kernel address. + * x4 = Count + */ + + /* Write the data */ +1: ldrh w1, [x3], #2 + strh w1, [x0] + subs x4, x4, #1 + b.ne 1b + +2: ret +END(generic_bs_wm_2) + +ENTRY(generic_bs_wm_4) + /* If there is anything to write. */ + cbz x4, 2f + + add x0, x1, x2 + /* + * x0 = The device address. + * x3 = The kernel address. + * x4 = Count + */ + + /* Write the data */ +1: ldr w1, [x3], #4 + str w1, [x0] + subs x4, x4, #1 + b.ne 1b + +2: ret +END(generic_bs_wm_4) + +ENTRY(generic_bs_wm_8) + /* If there is anything to write. */ + cbz x4, 2f + + add x0, x1, x2 + /* + * x0 = The device address. + * x3 = The kernel address. + * x4 = Count + */ + + /* Write the data */ +1: ldr x1, [x3], #8 + str x1, [x0] + subs x4, x4, #1 + b.ne 1b + +2: ret +END(generic_bs_wm_8) Added: head/sys/arm64/arm64/busdma_machdep.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm64/arm64/busdma_machdep.c Mon Apr 13 14:43:10 2015 (r281494) @@ -0,0 +1,68 @@ +/* $FreeBSD$ */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/systm.h> + +#include <vm/vm.h> +#include <vm/pmap.h> + +#include <machine/bus.h> + +int +_bus_dmamap_load_phys(bus_dma_tag_t dmat, bus_dmamap_t map, vm_paddr_t buf, + bus_size_t buflen, int flags, bus_dma_segment_t *segs, int *segp) +{ + + panic("_bus_dmamap_load_phys"); +} + +int +_bus_dmamap_load_ma(bus_dma_tag_t dmat, bus_dmamap_t map, struct vm_page **ma, + bus_size_t tlen, int ma_offs, int flags, bus_dma_segment_t *segs, + int *segp) +{ + + panic("_bus_dmamap_load_ma"); +} + +int +_bus_dmamap_load_buffer(bus_dma_tag_t dmat, bus_dmamap_t map, void *buf, + bus_size_t buflen, pmap_t pmap, int flags, bus_dma_segment_t *segs, + int *segp) +{ + + panic("_bus_dmamap_load_buffer"); +} + +void +__bus_dmamap_waitok(bus_dma_tag_t dmat, bus_dmamap_t map, + struct memdesc *mem, bus_dmamap_callback_t *callback, void *callback_arg) +{ + + panic("__bus_dmamap_waitok"); +} + +bus_dma_segment_t * +_bus_dmamap_complete(bus_dma_tag_t dmat, bus_dmamap_t map, + bus_dma_segment_t *segs, int nsegs, int error) +{ + + panic("_bus_dmamap_complete"); +} + +void +_bus_dmamap_unload(bus_dma_tag_t dmat, bus_dmamap_t map) +{ + + panic("_bus_dmamap_unload"); +} + +void +_bus_dmamap_sync(bus_dma_tag_t dmat, bus_dmamap_t map, bus_dmasync_op_t op) +{ + + panic("_bus_dmamap_sync"); +} Added: head/sys/arm64/arm64/clock.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm64/arm64/clock.c Mon Apr 13 14:43:10 2015 (r281494) @@ -0,0 +1,39 @@ +/*- + * Copyright (c) 2014 Andrew Turner + * 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 THE AUTHOR 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 AUTHOR 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. + * + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/types.h> +#include <sys/systm.h> + +void +cpu_initclocks(void) +{ + + cpu_initclocks_bsp(); +} Added: head/sys/arm64/arm64/copyinout.S ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm64/arm64/copyinout.S Mon Apr 13 14:43:10 2015 (r281494) @@ -0,0 +1,118 @@ +/*- + * Copyright (c) 2015 The FreeBSD Foundation + * All rights reserved. + * + * This software was developed by Andrew Turner under + * sponsorship from the FreeBSD Foundation. + * + * 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 AUTHOR 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 AUTHOR 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. + * + */ + +#include <machine/asm.h> +__FBSDID("$FreeBSD$"); + +#include <sys/errno.h> + +#include "assym.s" + +/* + * Fault handler for the copy{in,out} functions below. + */ +ENTRY(copyio_fault) + SET_FAULT_HANDLER(xzr, x1) /* Clear the handler */ + mov x0, #EFAULT + ret +END(copyio_fault) + +/* + * Copies from a kernel to user address + * + * int copyout(const void *kaddr, void *udaddr, size_t len) + */ +ENTRY(copyout) + cbz x2, 2f /* If len == 0 then skip loop */ + + adr x6, copyio_fault /* Get the handler address */ + SET_FAULT_HANDLER(x6, x7) /* Set the handler */ + +1: ldrb w4, [x0], #1 /* Load from kaddr */ + strb w4, [x1], #1 /* Store in uaddr */ + sub x2, x2, #1 /* len-- */ + cbnz x2, 1b + + SET_FAULT_HANDLER(xzr, x7) /* Clear the handler */ + +2: mov x0, xzr /* return 0 */ + ret +END(copyout) + +/* + * Copies from a user to kernel address + * + * int copyin(const void *uaddr, void *kdaddr, size_t len) + */ +ENTRY(copyin) + cbz x2, 2f /* If len == 0 then skip loop */ + + adr x6, copyio_fault /* Get the handler address */ + SET_FAULT_HANDLER(x6, x7) /* Set the handler */ + +1: ldrb w4, [x0], #1 /* Load from uaddr */ + strb w4, [x1], #1 /* Store in kaddr */ + sub x2, x2, #1 /* len-- */ + cbnz x2, 1b + + SET_FAULT_HANDLER(xzr, x7) /* Clear the handler */ + +2: mov x0, xzr /* return 0 */ + ret +END(copyin) + +/* + * Copies a string from a user to kernel address + * + * int copyinstr(const void *udaddr, void *kaddr, size_t len, size_t *done) + */ +ENTRY(copyinstr) + mov x5, xzr /* count = 0 */ + cbz x2, 3f /* If len == 0 then skip loop */ + + adr x6, copyio_fault /* Get the handler address */ + SET_FAULT_HANDLER(x6, x7) /* Set the handler */ + +1: ldrb w4, [x0], #1 /* Load from uaddr */ + strb w4, [x1], #1 /* Store in kaddr */ + cbz w4, 2f /* If == 0 then break */ + sub x2, x2, #1 /* len-- */ + add x5, x5, #1 /* count++ */ + cbnz x2, 1b + +2: SET_FAULT_HANDLER(xzr, x7) /* Clear the handler */ + +3: cbz x3, 4f /* Check if done != NULL */ + add x5, x5, #1 /* count++ */ + str x5, [x3] /* done = count */ + +4: mov x0, xzr /* return 0 */ + ret +END(copyinstr) Added: head/sys/arm64/arm64/copystr.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm64/arm64/copystr.c Mon Apr 13 14:43:10 2015 (r281494) @@ -0,0 +1,61 @@ +/*- + * Copyright (c) 2014 Andrew Turner + * 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 THE AUTHOR 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 AUTHOR 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. + * + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/systm.h> + +int +copystr(const void * __restrict kfaddr, void * __restrict kdaddr, size_t len, + size_t * __restrict lencopied) +{ + const char *src; + size_t pos; + char *dst; + int error; + + error = ENAMETOOLONG; + src = kfaddr; + dst = kdaddr; + for (pos = 0; pos < len; pos++) { + dst[pos] = src[pos]; + if (src[pos] == '\0') { + /* Increment pos to hold the number of bytes copied */ + pos++; + error = 0; + break; + } + } + + if (lencopied != NULL) + *lencopied = pos; + + return (0); +} + Added: head/sys/arm64/arm64/cpufunc_asm.S ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm64/arm64/cpufunc_asm.S Mon Apr 13 14:43:10 2015 (r281494) @@ -0,0 +1,154 @@ +/*- + * Copyright (c) 2014 Robin Randhawa + * Copyright (c) 2015 The FreeBSD Foundation + * All rights reserved. + * + * Portions of this software were developed by Andrew Turner + * under sponsorship from the FreeBSD Foundation + * + * 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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE *** DIFF OUTPUT TRUNCATED AT 1000 LINES *** _______________________________________________ svn-src-head@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
