summaryrefslogtreecommitdiffstats
path: root/target/sh4/helper.c
Commit message (Collapse)AuthorAgeFilesLines
* sysemu: Split sysemu/runstate.h off sysemu/sysemu.hMarkus Armbruster2019-08-161-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | sysemu/sysemu.h is a rather unfocused dumping ground for stuff related to the system-emulator. Evidence: * It's included widely: in my "build everything" tree, changing sysemu/sysemu.h still triggers a recompile of some 1100 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h, down from 5400 due to the previous two commits). * It pulls in more than a dozen additional headers. Split stuff related to run state management into its own header sysemu/runstate.h. Touching sysemu/sysemu.h now recompiles some 850 objects. qemu/uuid.h also drops from 1100 to 850, and qapi/qapi-types-run-state.h from 4400 to 4200. Touching new sysemu/runstate.h recompiles some 500 objects. Since I'm touching MAINTAINERS to add sysemu/runstate.h anyway, also add qemu/main-loop.h. Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190812052359.30071-30-armbru@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> [Unbreak OS-X build]
* target/sh4: Use env_cpu, env_archcpuRichard Henderson2019-06-101-14/+12Star
| | | | | | | | | | | Cleanup in the boilerplate that each target must define. Replace sh_env_get_cpu with env_archcpu. The combination CPU(sh_env_get_cpu) should have used ENV_GET_CPU to begin; use env_cpu now. Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* tcg: Use CPUClass::tlb_fill in cputlb.cRichard Henderson2019-05-101-8/+0Star
| | | | | | | | | | | | We can now use the CPUClass hook instead of a named function. Create a static tlb_fill function to avoid other changes within cputlb.c. This also isolates the asserts within. Remove the named tlb_fill function from all of the targets. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* target/sh4: Convert to CPUClass::tlb_fillRichard Henderson2019-05-101-101/+96Star
| | | | | | Cc: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* target/sh4: Fix LGPL information in the file headersThomas Huth2019-05-081-1/+1
| | | | | | | | | It's either "GNU *Library* General Public License version 2" or "GNU Lesser General Public License version *2.1*", but there was no "version 2.0" of the "Lesser" license. So assume that version 2.1 is meant here. Message-Id: <1550073530-4138-1-git-send-email-thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
* accel/tcg: add size paremeter in tlb_fill()Laurent Vivier2018-01-251-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | The MC68040 MMU provides the size of the access that triggers the page fault. This size is set in the Special Status Word which is written in the stack frame of the access fault exception. So we need the size in m68k_cpu_unassigned_access() and m68k_cpu_handle_mmu_fault(). To be able to do that, this patch modifies the prototype of handle_mmu_fault handler, tlb_fill() and probe_write(). do_unassigned_access() already includes a size parameter. This patch also updates handle_mmu_fault handlers and tlb_fill() of all targets (only parameter, no code change). Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180118193846.24953-2-laurent@vivier.eu>
* target/sh4: Use cmpxchg for movco when parallel_cpusRichard Henderson2017-12-181-0/+1
| | | | | | | | | | | As for other targets, cmpxchg isn't quite right for ll/sc, suffering from an ABA race, but is sufficient to implement portable atomic operations. Signed-off-by: Richard Henderson <rth@twiddle.net> Message-Id: <20170907185057.23421-2-richard.henderson@linaro.org> [aurel32: fix whitespace] Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target/sh4: ignore interrupts in a delay slotAurelien Jarno2017-05-301-2/+10
| | | | | | | | | Delay slots are indivisible, therefore avoid scheduling an interrupt in the delay slot. However exceptions are possible. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target/sh4: introduce DELAY_SLOT_MASKAurelien Jarno2017-05-301-2/+2
| | | | | | | | | This will make easier the introduction of a new flag in the next patches. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target/sh4: fix reset when using a kernel and an initrdAurelien Jarno2017-05-301-1/+9
| | | | | | | | | | | | | | | When a masked exception happens, the SH4 CPU generates a non-masked reset exception, which then jumps to the reset vector at address 0xA0000000. While this is emulated correctly in QEMU, this does not work when using a kernel and initrd as this address then contain an illegal instruction (and there is no guarantee the kernel and initrd haven't been overwritten). Therefore call qemu_system_reset_request to reload the kernel and initrd and load the program counter to the kernel entry point. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target/sh4: log unauthorized accesses using qemu_log_maskAurelien Jarno2017-05-301-1/+1
| | | | | | | | qemu_log_mask() is preferred over fprintf() for logging errors. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target/sh4: move DELAY_SLOT_TRUE flag into a separate globalAurelien Jarno2017-05-131-1/+1
| | | | | | | | | | | | | Instead of using one bit of the env flags to store the condition of the next delay slot, use a separate global. It simplifies reading and writing the flags variable and also removes some confusion between ctx->envflags and env->flags. Note that the global is first transfered to a temp in order to be able to discard the global before the brcond. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target/sh4: get rid of DELAY_SLOT_CLEARMEAurelien Jarno2017-05-131-2/+0Star
| | | | | | | | | | | Now that ctx->flags has been split, it becomes clear that DELAY_SLOT_CLEARME has not impact on the code generation: in both case ctx->envflags is cleared, either by clearing all the flags, or by setting it to 0. This is left-over from pre-TCG era. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* cputlb: drop flush_global flag from tlb_flushAlex Bennée2017-01-131-1/+1
| | | | | | | | | | | We have never has the concept of global TLB entries which would avoid the flush so we never actually use this flag. Drop it and make clear that tlb_flush is the sledge-hammer it has always been. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> [DG: ppc portions] Acked-by: David Gibson <david@gibson.dropbear.id.au>
* Move target-* CPU file into a target/ folderThomas Huth2016-12-201-0/+872
We've currently got 18 architectures in QEMU, and thus 18 target-xxx folders in the root folder of the QEMU source tree. More architectures (e.g. RISC-V, AVR) are likely to be included soon, too, so the main folder of the QEMU sources slowly gets quite overcrowded with the target-xxx folders. To disburden the main folder a little bit, let's move the target-xxx folders into a dedicated target/ folder, so that target-xxx/ simply becomes target/xxx/ instead. Acked-by: Laurent Vivier <laurent@vivier.eu> [m68k part] Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> [tricore part] Acked-by: Michael Walle <michael@walle.cc> [lm32 part] Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x part] Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [s390x part] Acked-by: Eduardo Habkost <ehabkost@redhat.com> [i386 part] Acked-by: Artyom Tarasenko <atar4qemu@gmail.com> [sparc part] Acked-by: Richard Henderson <rth@twiddle.net> [alpha part] Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa part] Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ppc part] Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [cris&microblaze part] Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32 part] Signed-off-by: Thomas Huth <thuth@redhat.com>