qemu/target/mips
Jiaxun Yang 4bfc895383 target/mips: Disable DSP ASE for Octeon68XX
I don't have access to Octeon68XX hardware but according
to my investigation Octeon never had DSP ASE support.

As per "Cavium Networks OCTEON Plus CN50XX Hardware Reference
Manual" CP0C3_DSPP is reserved bit and read as 0. Also I do have
access to a Ubiquiti Edgerouter 4 which has Octeon CN7130 processor
and I can confirm CP0C3_DSPP is read as 0 on that processor.

Further more, in linux kernel:
arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h
cpu_has_dsp is overridden as 0.

So I believe we shouldn't emulate DSP in QEMU as well.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
Message-Id: <20221031132531.18122-4-jiaxun.yang@flygoat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2022-11-08 01:04:25 +01:00
..
sysemu target/mips: Move CP0 helpers to sysemu/cp0.c 2021-05-02 16:49:35 +02:00
tcg target/mips: Enable LBX/LWX/* instructions for Octeon 2022-11-08 01:04:25 +01:00
cpu-defs.c.inc target/mips: Disable DSP ASE for Octeon68XX 2022-11-08 01:04:25 +01:00
cpu-param.h Normalize header guard symbol definition 2022-05-11 16:50:26 +02:00
cpu-qom.h target: Introduce and use OBJECT_DECLARE_CPU_TYPE() macro 2022-03-06 22:23:09 +01:00
cpu.c target/mips: Set CP0St_{KX, SX, UX} for Loongson-2F 2022-11-08 01:04:25 +01:00
cpu.h target/mips: Use an exception for semihosting 2022-06-28 10:13:42 +05:30
fpu_helper.h target/mips: Set set_default_nan_mode with set_snan_bit_is_one 2021-05-16 07:13:51 -05:00
fpu.c target/mips: Optimize CPU/FPU regnames[] arrays 2021-05-02 16:49:34 +02:00
gdbstub.c target/mips: Extract FPU helpers to 'fpu_helper.h' 2021-01-14 17:13:53 +01:00
helper.h target/mips: Extract NEC Vr54xx helper definitions 2021-08-25 13:02:14 +02:00
internal.h MIPS patches queue 2022-03-09 09:13:39 +00:00
Kconfig meson: Introduce target-specific Kconfig 2021-07-09 18:21:34 +02:00
kvm_mips.h hw/mips: Implement the kvm_type() hook in MachineClass 2020-06-27 19:35:39 +02:00
kvm.c kvm: allow target-specific accelerator properties 2022-10-10 09:23:16 +02:00
meson.build target/mips: Move TCG source files under tcg/ sub directory 2021-05-02 16:49:35 +02:00
mips-defs.h target/mips: introduce decodetree structure for Cavium Octeon extension 2022-07-12 22:30:09 +02:00
msa.c target/mips: Move msa_reset() to new source file 2021-05-02 16:49:34 +02:00