This allows to register more than one CPU on the leon3_generic machine.
Co-developed-by: Frederic Konrad <konrad.frederic@yahoo.fr>
Signed-off-by: Clément Chigot <chigot@adacore.com>
Message-ID: <20240131085047.18458-8-chigot@adacore.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
According to the doc (see §4.2.15 in [1]), the reset operation should
not impact %SP.
[1] https://gaisler.com/doc/gr712rc-usermanual.pdf
Signed-off-by: Clément Chigot <chigot@adacore.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240131085047.18458-7-chigot@adacore.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This allows the guest program to know its cpu id.
Co-developed-by: Frederic Konrad <konrad.frederic@yahoo.fr>
Signed-off-by: Clément Chigot <chigot@adacore.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240131085047.18458-6-chigot@adacore.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Now there is an ncpus property, use it in order to deliver the IRQ to
multiple CPU.
Co-developed-by: Frederic Konrad <konrad.frederic@yahoo.fr>
Signed-off-by: Clément Chigot <chigot@adacore.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240131085047.18458-5-chigot@adacore.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This implements the multiprocessor status register in grlib-irqmp and
bind it to a start signal, which will be later wired in leon3-generic
to start a cpu.
The EIRQ and BA bits are not implemented.
Based on https://gaisler.com/doc/gr712rc-usermanual.pdf, §8.3.5.
Co-developed-by: Frederic Konrad <konrad.frederic@yahoo.fr>
Signed-off-by: Clément Chigot <chigot@adacore.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240131085047.18458-4-chigot@adacore.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This adds a "ncpus" property to the "grlib-irqmp" device to be used
later, this required a little refactoring of how we initialize the
device (ie: use realize instead of init).
Co-developed-by: Frederic Konrad <konrad.frederic@yahoo.fr>
Signed-off-by: Clément Chigot <chigot@adacore.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240131085047.18458-3-chigot@adacore.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Split out the headers for each peripherals and move them in their
right hardware directory.
Update Copyright and add SPDX-License-Identifier at the same time.
Co-developed-by: Frederic Konrad <konrad.frederic@yahoo.fr>
Signed-off-by: Clément Chigot <chigot@adacore.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240131085047.18458-2-chigot@adacore.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Directly use the void pointer argument returned
by memory_region_get_ram_ptr().
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240215132824.67363-3-philmd@linaro.org>
'CPUSPARCState *env' argument is unused, remove it.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20240215132824.67363-2-philmd@linaro.org>
Since commit b04d989054 ("SPARC: Emulation of Leon3") the
main_cpu_reset() handler sets both pc/npc when the CPU is
reset, after the machine is realized. It is pointless to
set it in leon3_generic_hw_init().
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Clément Chigot <chigot@adacore.com>
Message-Id: <20240130113102.6732-3-philmd@linaro.org>
CPUSPARCState::irq_manager holds a pointer to a QDev,
so declare it as DeviceState instead of void.
Move the comment about Leon3 fields.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Clément Chigot <chigot@adacore.com>
Message-Id: <20240130113102.6732-3-philmd@linaro.org>
Inline cpu_create() in order to call
qdev_init_gpio_in_named_with_opaque()
before the CPU is realized.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Damien Hedde <dhedde@kalrayinc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240213130341.1793-13-philmd@linaro.org>
We should not wire IRQs on unrealized device.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240213130341.1793-9-philmd@linaro.org>
We should not wire IRQs on unrealized device.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240213130341.1793-8-philmd@linaro.org>
We should not wire IRQs on unrealized device.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240213130341.1793-7-philmd@linaro.org>
We should not wire IRQs on unrealized device.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240213130341.1793-6-philmd@linaro.org>
We should not wire IRQs on unrealized device.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Damien Hedde <dhedde@kalrayinc.com>
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240213130341.1793-5-philmd@linaro.org>
Instead of filling an array of all the possible IRQs, only call
qdev_get_gpio_in() when an IRQ is used. Remove the array from
RX62NState. Doing so we avoid calling qdev_get_gpio_in() on an
unrealized device.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240213130341.1793-4-philmd@linaro.org>
"qemu/units.h" is not used in the "hw/rx/rx62n.h"
header, include it in the source where it is.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240213130341.1793-3-philmd@linaro.org>
isa-superio.c currently defines a SuperIO chip that is not used
by any other user of the file. Extract the chip to a separate file.
Reviewed-by: Bernhard Beschow <shentey@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20240213155005.109954-7-pbonzini@redhat.com>
[PMD: Update MAINTAINERS]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Right now all subclasses of TYPE_ISA_SUPERIO have to specify an instance_size,
because the ISASuperIODevice struct adds fields to ISADevice but the type does
not include the increased instance size. Failure to do so results in an access
past the bounds of struct ISADevice as soon as isa_superio_realize is called.
Fix this by specifying the instance_size already in the superclass.
Fixes: 4c3119a6e3 ("hw/isa/superio: Factor out the parallel code from pc87312.c")
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Bernhard Beschow <shentey@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20240213155005.109954-6-pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
ISA_SUPERIO does not provide an ISA bus, so it should not select the symbol:
instead it requires one. Among its users, VT82C686 is the only one that
is a PCI-ISA bridge and does not already select ISA_BUS.
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Bernhard Beschow <shentey@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20240213155005.109954-5-pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
The board doesn't have a working ISA bus, only some I/O space.
Selecting ISA_BUS and including hw/isa/isa.h is not necessary.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-ID: <20230109204124.102592-3-shentey@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240213155005.109954-4-pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
All users of ISA_SUPERIO include a floppy disk controller, serial port
and parallel port via the automatic creation mechanism of isa-superio.c.
Select the symbol and remove it from the dependents.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20240213155005.109954-3-pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
DisasContext::saar is not used, remove it.
Reported-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240209090513.9401-11-philmd@linaro.org>
Remove the unused CP0_SAARI register.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240209090513.9401-10-philmd@linaro.org>
DisasContext::saar boolean is never set, so this code
is not reachable. Remove it.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240209090513.9401-9-philmd@linaro.org>
Remove the unused CP0_SAAR[2] registers.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240209090513.9401-8-philmd@linaro.org>
The SAARP field added in commit 5fb2dcd179 ("target/mips: Provide
R/W access to SAARI and SAAR CP0 registers") has never been used,
remove it.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240215080629.51190-1-philmd@linaro.org>
This field is not set. Remove it along with the dead
code it was guarding.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240209090513.9401-7-philmd@linaro.org>
Since previous commit the MIPSITUState::cpu0 field is not
used anymore. Remove it.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240209090513.9401-6-philmd@linaro.org>
This field is never set, so remove the unreachable code.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240209090513.9401-5-philmd@linaro.org>
Previous commits removed the MT*C0(SAAR) helpers which
were using CPUMIPSState::itu, we can now remove it too.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240209090513.9401-4-philmd@linaro.org>
Previous commit removed the MT*C0(SAAR) helpers which
were the only calls to itc_reconfigure() out of hw/,
we can reduce its scope and declare it statically.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240209090513.9401-3-philmd@linaro.org>
DisasContext::saar boolean is never set, so this code
is not reachable. Remove it.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240209090513.9401-2-philmd@linaro.org>
Missed during commit d537cf6c86 ("Unify IRQ handling")
when qemu_irq typedef was introduced for IRQState.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240130111111.6372-1-philmd@linaro.org>
There is no use of ptimer functions in mips_cps.c or any other related
code.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240129115811.1039965-1-pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Suppress the deprecation warning when we're running under qtest,
to avoid "make check" including warning messages in its output.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240206154151.155620-1-peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Add documentation for the mps3-an536 board type.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240206132931.38376-14-peter.maydell@linaro.org
Add the remaining devices (or unimplemented-device stubs) for
this board: SPI controllers, SCC, FPGAIO, I2S, RTC, the
QSPI write-config block, and ethernet.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240206132931.38376-13-peter.maydell@linaro.org
Add the GPIO, watchdog, dual-timer and I2C devices to the mps3-an536
board. These are all simple devices that just need to be created and
wired up.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240206132931.38376-12-peter.maydell@linaro.org
This board has a lot of UARTs: there is one UART per CPU in the
per-CPU peripheral part of the address map, whose interrupts are
connected as per-CPU interrupt lines. Then there are 4 UARTs in the
normal part of the peripheral space, whose interrupts are shared
peripheral interrupts.
Connect and wire them all up; this involves some OR gates where
multiple overflow interrupts are wired into one GIC input.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240206132931.38376-11-peter.maydell@linaro.org
Create the CPUs, the GIC, and the per-CPU RAM block for
the mps3-an536 board.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20240206132931.38376-10-peter.maydell@linaro.org
The AN536 is another FPGA image for the MPS3 development board. Unlike
the existing FPGA images we already model, this board uses a Cortex-R
family CPU, and it does not use any equivalent to the M-profile
"Subsystem for Embedded" SoC-equivalent that we model in hw/arm/armsse.c.
It's therefore more convenient for us to model it as a completely
separate C file.
This commit adds the basic skeleton of the board model, and the
code to create all the RAM and ROM. We assume that we're probably
going to want to add more images in future, so use the same
base class/subclass setup that mps2-tz.c uses, even though at
the moment there's only a single subclass.
Following commits will add the CPUs and the peripherals.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240206132931.38376-9-peter.maydell@linaro.org
The MPS2 SCC device is broadly the same for all FPGA images, but has
minor differences in the behaviour of the CFG registers depending on
the image. In many cases we don't really care about the functionality
controlled by these registers and a reads-as-written or similar
behaviour is sufficient for the moment.
For the AN536 the required behaviour is:
* A_CFG0 has CPU reset and halt bits
- implement as reads-as-written for the moment
* A_CFG1 has flash or ATCM address 0 remap handling
- QEMU doesn't model this; implement as reads-as-written
* A_CFG2 has QSPI select (like AN524)
- implemented (no behaviour, as with AN524)
* A_CFG3 is MCC_MSB_ADDR "additional MCC addressing bits"
- QEMU doesn't care about these, so use the existing
RAZ behaviour for convenience
* A_CFG4 is board rev (like all other images)
- no change needed
* A_CFG5 is ACLK frq in hz (like AN524)
- implemented as reads-as-written, as for other boards
* A_CFG6 is core 0 vector table base address
- implemented as reads-as-written for the moment
* A_CFG7 is core 1 vector table base address
- implemented as reads-as-written for the moment
Make the changes necessary for this; leave TODO comments where
appropriate to indicate where we might want to come back and
implement things like CPU reset.
The other aspects of the device specific to this FPGA image (like the
values of the board ID and similar registers) will be set via the
device's qdev properties.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240206132931.38376-8-peter.maydell@linaro.org
The MPS SCC device has a lot of different flavours for the various
different MPS FPGA images, which look mostly similar but have
differences in how particular registers are handled. Currently we
deal with this with a lot of open-coded checks on scc_partno(), but
as we add more board types this is getting a bit hard to read.
Factor out the conditions into some functions which we can
give more descriptive names to.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240206132931.38376-7-peter.maydell@linaro.org
We currently guard the CFG3 register read with
(scc_partno(s) == 0x524 && scc_partno(s) == 0x547)
which is clearly wrong as it is never true.
This register is present on all board types except AN524
and AN527; correct the condition.
Fixes: 6ac80818941829c0 ("hw/misc/mps2-scc: Implement changes for AN547")
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240206132931.38376-6-peter.maydell@linaro.org
Architecturally, the AArch32 MSR/MRS to/from banked register
instructions are UNPREDICTABLE for attempts to access a banked
register that the guest could access in a more direct way (e.g.
using this insn to access r8_fiq when already in FIQ mode). QEMU has
chosen to UNDEF on all of these.
However, for the case of accessing SPSR_hyp from hyp mode, it turns
out that real hardware permits this, with the same effect as if the
guest had directly written to SPSR. Further, there is some
guest code out there that assumes it can do this, because it
happens to work on hardware: an example Cortex-R52 startup code
fragment uses this, and it got copied into various other places,
including Zephyr. Zephyr was fixed to not use this:
https://github.com/zephyrproject-rtos/zephyr/issues/47330
but other examples are still out there, like the selftest
binary for the MPS3-AN536.
For convenience of being able to run guest code, permit
this UNPREDICTABLE access instead of UNDEFing it.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240206132931.38376-5-peter.maydell@linaro.org
Add the Cortex-R52 IMPDEF sysregs, by defining them here and
also by enabling the AUXCR feature which defines the ACTLR
and HACTLR registers. As is our usual practice, we make these
simple reads-as-zero stubs for now.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240206132931.38376-4-peter.maydell@linaro.org
