Most files that have TABs only contain a handful of them. Change them to spaces so that we don't confuse people. disas, standard-headers, linux-headers and libdecnumber are imported from other projects and probably should be exempted from the check. Outside those, after this patch the following files still contain both 8-space and TAB sequences at the beginning of the line. Many of them have a majority of TABs, or were initially committed with all tabs. bsd-user/i386/target_syscall.h bsd-user/x86_64/target_syscall.h crypto/aes.c hw/audio/fmopl.c hw/audio/fmopl.h hw/block/tc58128.c hw/display/cirrus_vga.c hw/display/xenfb.c hw/dma/etraxfs_dma.c hw/intc/sh_intc.c hw/misc/mst_fpga.c hw/net/pcnet.c hw/sh4/sh7750.c hw/timer/m48t59.c hw/timer/sh_timer.c include/crypto/aes.h include/disas/bfd.h include/hw/sh4/sh.h libdecnumber/decNumber.c linux-headers/asm-generic/unistd.h linux-headers/linux/kvm.h linux-user/alpha/target_syscall.h linux-user/arm/nwfpe/double_cpdo.c linux-user/arm/nwfpe/fpa11_cpdt.c linux-user/arm/nwfpe/fpa11_cprt.c linux-user/arm/nwfpe/fpa11.h linux-user/flat.h linux-user/flatload.c linux-user/i386/target_syscall.h linux-user/ppc/target_syscall.h linux-user/sparc/target_syscall.h linux-user/syscall.c linux-user/syscall_defs.h linux-user/x86_64/target_syscall.h slirp/cksum.c slirp/if.c slirp/ip.h slirp/ip_icmp.c slirp/ip_icmp.h slirp/ip_input.c slirp/ip_output.c slirp/mbuf.c slirp/misc.c slirp/sbuf.c slirp/socket.c slirp/socket.h slirp/tcp_input.c slirp/tcpip.h slirp/tcp_output.c slirp/tcp_subr.c slirp/tcp_timer.c slirp/tftp.c slirp/udp.c slirp/udp.h target/cris/cpu.h target/cris/mmu.c target/cris/op_helper.c target/sh4/helper.c target/sh4/op_helper.c target/sh4/translate.c tcg/sparc/tcg-target.inc.c tests/tcg/cris/check_addo.c tests/tcg/cris/check_moveq.c tests/tcg/cris/check_swap.c tests/tcg/multiarch/test-mmap.c ui/vnc-enc-hextile-template.h ui/vnc-enc-zywrle.h util/envlist.c util/readline.c The following have only TABs: bsd-user/i386/target_signal.h bsd-user/sparc64/target_signal.h bsd-user/sparc64/target_syscall.h bsd-user/sparc/target_signal.h bsd-user/sparc/target_syscall.h bsd-user/x86_64/target_signal.h crypto/desrfb.c hw/audio/intel-hda-defs.h hw/core/uboot_image.h hw/sh4/sh7750_regnames.c hw/sh4/sh7750_regs.h include/hw/cris/etraxfs_dma.h linux-user/alpha/termbits.h linux-user/arm/nwfpe/fpopcode.h linux-user/arm/nwfpe/fpsr.h linux-user/arm/syscall_nr.h linux-user/arm/target_signal.h linux-user/cris/target_signal.h linux-user/i386/target_signal.h linux-user/linux_loop.h linux-user/m68k/target_signal.h linux-user/microblaze/target_signal.h linux-user/mips64/target_signal.h linux-user/mips/target_signal.h linux-user/mips/target_syscall.h linux-user/mips/termbits.h linux-user/ppc/target_signal.h linux-user/sh4/target_signal.h linux-user/sh4/termbits.h linux-user/sparc64/target_syscall.h linux-user/sparc/target_signal.h linux-user/x86_64/target_signal.h linux-user/x86_64/termbits.h pc-bios/optionrom/optionrom.h slirp/mbuf.h slirp/misc.h slirp/sbuf.h slirp/tcp.h slirp/tcp_timer.h slirp/tcp_var.h target/i386/svm.h target/sparc/asi.h target/xtensa/core-dc232b/xtensa-modules.inc.c target/xtensa/core-dc233c/xtensa-modules.inc.c target/xtensa/core-de212/core-isa.h target/xtensa/core-de212/xtensa-modules.inc.c target/xtensa/core-fsf/xtensa-modules.inc.c target/xtensa/core-sample_controller/core-isa.h target/xtensa/core-sample_controller/xtensa-modules.inc.c target/xtensa/core-test_kc705_be/core-isa.h target/xtensa/core-test_kc705_be/xtensa-modules.inc.c tests/tcg/cris/check_abs.c tests/tcg/cris/check_addc.c tests/tcg/cris/check_addcm.c tests/tcg/cris/check_addoq.c tests/tcg/cris/check_bound.c tests/tcg/cris/check_ftag.c tests/tcg/cris/check_int64.c tests/tcg/cris/check_lz.c tests/tcg/cris/check_openpf5.c tests/tcg/cris/check_sigalrm.c tests/tcg/cris/crisutils.h tests/tcg/cris/sys.c tests/tcg/i386/test-i386-ssse3.c ui/vgafont.h Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20181213223737.11793-3-pbonzini@redhat.com> Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com> Acked-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Eric Blake <eblake@redhat.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Stefan Markovic <smarkovic@wavecomp.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
320 lines
8.9 KiB
C
320 lines
8.9 KiB
C
/*
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* CRIS helper routines.
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*
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* Copyright (c) 2007 AXIS Communications AB
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* Written by Edgar E. Iglesias.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "cpu.h"
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#include "mmu.h"
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#include "qemu/host-utils.h"
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#include "exec/exec-all.h"
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#include "exec/cpu_ldst.h"
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//#define CRIS_HELPER_DEBUG
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#ifdef CRIS_HELPER_DEBUG
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#define D(x) x
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#define D_LOG(...) qemu_log(__VA_ARGS__)
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#else
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#define D(x)
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#define D_LOG(...) do { } while (0)
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#endif
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#if defined(CONFIG_USER_ONLY)
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void cris_cpu_do_interrupt(CPUState *cs)
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{
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CRISCPU *cpu = CRIS_CPU(cs);
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CPUCRISState *env = &cpu->env;
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cs->exception_index = -1;
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env->pregs[PR_ERP] = env->pc;
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}
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void crisv10_cpu_do_interrupt(CPUState *cs)
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{
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cris_cpu_do_interrupt(cs);
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}
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int cris_cpu_handle_mmu_fault(CPUState *cs, vaddr address, int size, int rw,
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int mmu_idx)
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{
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CRISCPU *cpu = CRIS_CPU(cs);
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cs->exception_index = 0xaa;
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cpu->env.pregs[PR_EDA] = address;
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cpu_dump_state(cs, stderr, fprintf, 0);
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return 1;
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}
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#else /* !CONFIG_USER_ONLY */
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static void cris_shift_ccs(CPUCRISState *env)
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{
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uint32_t ccs;
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/* Apply the ccs shift. */
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ccs = env->pregs[PR_CCS];
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ccs = ((ccs & 0xc0000000) | ((ccs << 12) >> 2)) & ~0x3ff;
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env->pregs[PR_CCS] = ccs;
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}
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int cris_cpu_handle_mmu_fault(CPUState *cs, vaddr address, int size, int rw,
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int mmu_idx)
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{
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CRISCPU *cpu = CRIS_CPU(cs);
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CPUCRISState *env = &cpu->env;
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struct cris_mmu_result res;
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int prot, miss;
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int r = -1;
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target_ulong phy;
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qemu_log_mask(CPU_LOG_MMU, "%s addr=%" VADDR_PRIx " pc=%x rw=%x\n",
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__func__, address, env->pc, rw);
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miss = cris_mmu_translate(&res, env, address & TARGET_PAGE_MASK,
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rw, mmu_idx, 0);
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if (miss) {
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if (cs->exception_index == EXCP_BUSFAULT) {
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cpu_abort(cs,
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"CRIS: Illegal recursive bus fault."
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"addr=%" VADDR_PRIx " rw=%d\n",
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address, rw);
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}
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env->pregs[PR_EDA] = address;
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cs->exception_index = EXCP_BUSFAULT;
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env->fault_vector = res.bf_vec;
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r = 1;
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} else {
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/*
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* Mask off the cache selection bit. The ETRAX busses do not
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* see the top bit.
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*/
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phy = res.phy & ~0x80000000;
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prot = res.prot;
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tlb_set_page(cs, address & TARGET_PAGE_MASK, phy,
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prot, mmu_idx, TARGET_PAGE_SIZE);
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r = 0;
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}
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if (r > 0) {
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qemu_log_mask(CPU_LOG_MMU,
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"%s returns %d irqreq=%x addr=%" VADDR_PRIx " phy=%x vec=%x"
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" pc=%x\n", __func__, r, cs->interrupt_request, address,
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res.phy, res.bf_vec, env->pc);
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}
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return r;
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}
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void crisv10_cpu_do_interrupt(CPUState *cs)
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{
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CRISCPU *cpu = CRIS_CPU(cs);
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CPUCRISState *env = &cpu->env;
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int ex_vec = -1;
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D_LOG("exception index=%d interrupt_req=%d\n",
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cs->exception_index,
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cs->interrupt_request);
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if (env->dslot) {
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/* CRISv10 never takes interrupts while in a delay-slot. */
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cpu_abort(cs, "CRIS: Interrupt on delay-slot\n");
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}
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assert(!(env->pregs[PR_CCS] & PFIX_FLAG));
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switch (cs->exception_index) {
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case EXCP_BREAK:
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/* These exceptions are genereated by the core itself.
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ERP should point to the insn following the brk. */
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ex_vec = env->trap_vector;
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env->pregs[PRV10_BRP] = env->pc;
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break;
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case EXCP_NMI:
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/* NMI is hardwired to vector zero. */
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ex_vec = 0;
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env->pregs[PR_CCS] &= ~M_FLAG_V10;
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env->pregs[PRV10_BRP] = env->pc;
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break;
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case EXCP_BUSFAULT:
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cpu_abort(cs, "Unhandled busfault");
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break;
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default:
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/* The interrupt controller gives us the vector. */
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ex_vec = env->interrupt_vector;
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/* Normal interrupts are taken between
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TB's. env->pc is valid here. */
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env->pregs[PR_ERP] = env->pc;
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break;
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}
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if (env->pregs[PR_CCS] & U_FLAG) {
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/* Swap stack pointers. */
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env->pregs[PR_USP] = env->regs[R_SP];
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env->regs[R_SP] = env->ksp;
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}
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/* Now that we are in kernel mode, load the handlers address. */
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env->pc = cpu_ldl_code(env, env->pregs[PR_EBP] + ex_vec * 4);
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env->locked_irq = 1;
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env->pregs[PR_CCS] |= F_FLAG_V10; /* set F. */
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qemu_log_mask(CPU_LOG_INT, "%s isr=%x vec=%x ccs=%x pid=%d erp=%x\n",
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__func__, env->pc, ex_vec,
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env->pregs[PR_CCS],
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env->pregs[PR_PID],
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env->pregs[PR_ERP]);
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}
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void cris_cpu_do_interrupt(CPUState *cs)
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{
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CRISCPU *cpu = CRIS_CPU(cs);
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CPUCRISState *env = &cpu->env;
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int ex_vec = -1;
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D_LOG("exception index=%d interrupt_req=%d\n",
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cs->exception_index,
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cs->interrupt_request);
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switch (cs->exception_index) {
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case EXCP_BREAK:
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/* These exceptions are genereated by the core itself.
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ERP should point to the insn following the brk. */
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ex_vec = env->trap_vector;
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env->pregs[PR_ERP] = env->pc;
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break;
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case EXCP_NMI:
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/* NMI is hardwired to vector zero. */
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ex_vec = 0;
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env->pregs[PR_CCS] &= ~M_FLAG_V32;
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env->pregs[PR_NRP] = env->pc;
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break;
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case EXCP_BUSFAULT:
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ex_vec = env->fault_vector;
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env->pregs[PR_ERP] = env->pc;
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break;
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default:
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/* The interrupt controller gives us the vector. */
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ex_vec = env->interrupt_vector;
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/* Normal interrupts are taken between
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TB's. env->pc is valid here. */
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env->pregs[PR_ERP] = env->pc;
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break;
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}
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/* Fill in the IDX field. */
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env->pregs[PR_EXS] = (ex_vec & 0xff) << 8;
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if (env->dslot) {
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D_LOG("excp isr=%x PC=%x ds=%d SP=%x"
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" ERP=%x pid=%x ccs=%x cc=%d %x\n",
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ex_vec, env->pc, env->dslot,
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env->regs[R_SP],
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env->pregs[PR_ERP], env->pregs[PR_PID],
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env->pregs[PR_CCS],
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env->cc_op, env->cc_mask);
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/* We loose the btarget, btaken state here so rexec the
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branch. */
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env->pregs[PR_ERP] -= env->dslot;
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/* Exception starts with dslot cleared. */
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env->dslot = 0;
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}
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if (env->pregs[PR_CCS] & U_FLAG) {
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/* Swap stack pointers. */
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env->pregs[PR_USP] = env->regs[R_SP];
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env->regs[R_SP] = env->ksp;
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}
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/* Apply the CRIS CCS shift. Clears U if set. */
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cris_shift_ccs(env);
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/* Now that we are in kernel mode, load the handlers address.
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This load may not fault, real hw leaves that behaviour as
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undefined. */
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env->pc = cpu_ldl_code(env, env->pregs[PR_EBP] + ex_vec * 4);
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/* Clear the excption_index to avoid spurios hw_aborts for recursive
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bus faults. */
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cs->exception_index = -1;
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D_LOG("%s isr=%x vec=%x ccs=%x pid=%d erp=%x\n",
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__func__, env->pc, ex_vec,
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env->pregs[PR_CCS],
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env->pregs[PR_PID],
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env->pregs[PR_ERP]);
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}
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hwaddr cris_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
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{
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CRISCPU *cpu = CRIS_CPU(cs);
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uint32_t phy = addr;
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struct cris_mmu_result res;
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int miss;
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miss = cris_mmu_translate(&res, &cpu->env, addr, 0, 0, 1);
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/* If D TLB misses, try I TLB. */
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if (miss) {
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miss = cris_mmu_translate(&res, &cpu->env, addr, 2, 0, 1);
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}
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if (!miss) {
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phy = res.phy;
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}
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D(fprintf(stderr, "%s %x -> %x\n", __func__, addr, phy));
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return phy;
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}
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#endif
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bool cris_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
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{
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CPUClass *cc = CPU_GET_CLASS(cs);
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CRISCPU *cpu = CRIS_CPU(cs);
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CPUCRISState *env = &cpu->env;
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bool ret = false;
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if (interrupt_request & CPU_INTERRUPT_HARD
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&& (env->pregs[PR_CCS] & I_FLAG)
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&& !env->locked_irq) {
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cs->exception_index = EXCP_IRQ;
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cc->do_interrupt(cs);
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ret = true;
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}
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if (interrupt_request & CPU_INTERRUPT_NMI) {
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unsigned int m_flag_archval;
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if (env->pregs[PR_VR] < 32) {
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m_flag_archval = M_FLAG_V10;
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} else {
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m_flag_archval = M_FLAG_V32;
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}
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if ((env->pregs[PR_CCS] & m_flag_archval)) {
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cs->exception_index = EXCP_NMI;
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cc->do_interrupt(cs);
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ret = true;
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}
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}
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return ret;
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}
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