Commit Graph

18 Commits

Author SHA1 Message Date
Thomas Huth
d749fb85bd target/m68k: Fix LGPL information in the file headers
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.
Also some files mention the GPL instead of the LGPL after declaring
that the files are licensed under the LGPL, so change these spots to
use LGPL, too.

Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1548769438-28942-1-git-send-email-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-01-30 14:20:13 +01:00
Alex Bennée
24f91e81b6 target/*/cpu.h: remove softfloat.h
As cpu.h is another typically widely included file which doesn't need
full access to the softfloat API we can remove the includes from here
as well. Where they do need types it's typically for float_status and
the rounding modes so we move that to softfloat-types.h as well.

As a result of not having softfloat in every cpu.h call we now need to
add it to various helpers that do need the full softfloat.h
definitions.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
[For PPC parts]
Acked-by: David Gibson <david@gibson.dropbear.id.au>
2018-02-21 10:20:24 +00:00
Laurent Vivier
2097dca6d3 target/m68k: add HMP command "info tlb"
Dump MMU state and address mappings.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180118193846.24953-8-laurent@vivier.eu>
2018-01-25 16:02:25 +01:00
Laurent Vivier
e55886c334 target/m68k: add pflush/ptest
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180118193846.24953-7-laurent@vivier.eu>
2018-01-25 16:02:25 +01:00
Laurent Vivier
5fa9f1f283 target/m68k: add moves
and introduce SFC and DFC control registers.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180118193846.24953-6-laurent@vivier.eu>
2018-01-25 16:02:24 +01:00
Laurent Vivier
c05c73b083 target/m68k: add Transparent Translation
Add ittr0, ittr1, dttr0, dttr1 and manage Transparent Translations

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180118193846.24953-4-laurent@vivier.eu>
2018-01-25 16:02:24 +01:00
Laurent Vivier
88b2fef6c3 target/m68k: add MC68040 MMU
Only add MC68040 MMU page table processing and related
registers (Special Status Word, Translation Control Register,
User Root Pointer and Supervisor Root Pointer).

Transparent Translation Registers, DFC/SFC and pflush/ptest
will be added later.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180118193846.24953-3-laurent@vivier.eu>
2018-01-25 16:02:24 +01:00
Laurent Vivier
98670d47cd accel/tcg: add size paremeter in tlb_fill()
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>
2018-01-25 16:02:24 +01:00
Laurent Vivier
6e22b28e22 target/m68k: add the Interrupt Stack Pointer
Add the third stack pointer, the Interrupt Stack Pointer (ISP)
(680x0 only). This stack will be needed in softmmu mode.

Update movec to set/get the value of the three stacks.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180104012913.30763-17-laurent@vivier.eu>
2018-01-04 17:24:35 +01:00
Laurent Vivier
0bdb2b3bf5 target/m68k: add reset
The instruction traps if the CPU is not in
Supervisor state but the helper is empty because
there is no easy way to reset all the peripherals
without resetting the CPU itself.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180104012913.30763-12-laurent@vivier.eu>
2018-01-04 17:24:35 +01:00
Laurent Vivier
d2f8fb8e7f target/m68k: manage 680x0 stack frames
680x0 manages several stack frame formats:
  - format 0: four-word stack frame
  - format 1: four-word throwaway stack frame
  - format 2: six-word stack frame
  - format 3: Floating-Point post-instruction stack frame
  - format 4: eight-word stack frame
  - format 7: access-error stack frame

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180104012913.30763-7-laurent@vivier.eu>
2018-01-04 17:22:36 +01:00
Igor Mammedov
f47cf4e31c m68k: replace cpu_m68k_init() with cpu_generic_init()
call register_m68k_insns() at realize time which makes
cpu_m68k_init() typical object creation function.
As result we can replace it with cpu_generic_init()
which does the same job, reducing code duplication a bit.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Tested-by: Thomas Huth <huth@tuxfamily.org>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1503592308-93913-12-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-09-01 11:54:24 -03:00
Laurent Vivier
ba62494483 target-m68k: add FPCR and FPSR
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170620205121.26515-6-laurent@vivier.eu>
2017-06-21 22:11:55 +02:00
Laurent Vivier
5a4526b26a target-m68k: define 96bit FP registers for gdb on 680x0
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170620205121.26515-5-laurent@vivier.eu>
2017-06-21 22:11:12 +02:00
Laurent Vivier
f83311e476 target-m68k: use floatx80 internally
Coldfire uses float64, but 680x0 use floatx80.
This patch introduces the use of floatx80 internally
and enables 680x0 80bits FPU.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170620205121.26515-4-laurent@vivier.eu>
2017-06-21 22:10:29 +02:00
Laurent Vivier
c88f8107b1 target-m68k: move FPU helpers to fpu_helper.c
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170611231633.32582-3-laurent@vivier.eu>
2017-06-15 09:16:16 +02:00
Richard Henderson
367790cce8 target-m68k: Inline shifts
Also manage word and byte operands and fix the computation of
overflow in the case of M68000 arithmetic shifts.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1478699171-10637-4-git-send-email-rth@twiddle.net>
2016-12-27 18:28:40 +01:00
Thomas Huth
fcf5ef2ab5 Move target-* CPU file into a target/ folder
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>
2016-12-20 21:52:12 +01:00