IEC binary prefixes ease code review: the unit is explicit.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20191021190653.9511-3-philmd@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
As explained in commit aff39be0ed:
Both functions, object_initialize() and object_property_add_child()
increase the reference counter of the new object, so one of the
references has to be dropped afterwards to get the reference
counting right. Otherwise the child object will not be properly
cleaned up when the parent gets destroyed.
Thus let's use now object_initialize_child() instead to get the
reference counting here right.
This patch was generated using the following Coccinelle script:
@use_sysbus_init_child_obj_missing_parent@
expression child_ptr;
expression child_type;
expression child_size;
@@
- object_initialize(child_ptr, child_size, child_type);
...
- qdev_set_parent_bus(DEVICE(child_ptr), sysbus_get_default());
...
?- object_unref(OBJECT(child_ptr));
+ sysbus_init_child_obj(OBJECT(PARENT_OBJ), "CHILD_NAME", child_ptr,
+ child_size, child_type);
We let the MPS2 boards adopt the cpu core, the FPGA and the SCC children.
While the object_initialize() function doesn't take an
'Error *errp' argument, the object_initialize_child() does.
Since this code is used when a machine is created (and is not
yet running), we deliberately choose to use the &error_abort
argument instead of ignoring errors if an object creation failed.
This choice also matches when using sysbus_init_child_obj(),
since its code is:
void sysbus_init_child_obj(Object *parent,
const char *childname, void *child,
size_t childsize, const char *childtype)
{
object_initialize_child(parent, childname, child, childsize,
childtype, &error_abort, NULL);
qdev_set_parent_bus(DEVICE(child), sysbus_get_default());
}
Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Inspired-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190507163416.24647-16-philmd@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
The header file hw/arm/arm.h now includes only declarations
relating to hw/arm/boot.c functionality. Rename it accordingly,
and adjust its header comment.
The bulk of this commit was created via
perl -pi -e 's|hw/arm/arm.h|hw/arm/boot.h|' hw/arm/*.c include/hw/arm/*.h
In a few cases we can just delete the #include:
hw/arm/msf2-soc.c, include/hw/arm/aspeed_soc.h and
include/hw/arm/bcm2836.h did not require it.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190516163857.6430-4-peter.maydell@linaro.org
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190412165416.7977-10-philmd@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Fix MPS2 SCC config register values for the mps2-an511
and mps2-an385 boards:
* the SCC_AID bits [23:20] specify the FPGA build target board revision,
and the SCC_CFG4 register specifies the actual board revision, so
these should have matching values. Claim to be board revision C,
consistently -- we had the revision in the wrong part of SCC_AID.
* SCC_ID bits [15:4] should be the board number in hex, not decimal
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180823175225.22612-1-peter.maydell@linaro.org
The MPS2 FPGA images for the Cortex-M3 (mps2-an385 and mps2-511)
both include a CMSDK dual-timer module. Wire this up.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180820141116.9118-6-peter.maydell@linaro.org
Some ARM CPUs have bitbanded IO, a memory region that allows convenient
bit access via 32-bit memory loads/stores. This eliminates the need for
read-modify-update instruction sequences.
This patch makes this optional feature an ARMv7MState qdev property,
allowing boards to choose whether they want bitbanding or not.
Status of boards:
* iotkit (Cortex M33), no bitband
* mps2 (Cortex M3), bitband
* msf2 (Cortex M3), bitband
* stellaris (Cortex M3), bitband
* stm32f205 (Cortex M3), bitband
As a side-effect of this patch, Peter Maydell noted that the Ethernet
controller on mps2 board is now accessible. Previously they were hidden
by the bitband region (which does not exist on the real board).
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180814162739.11814-2-stefanha@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Remove checks on MAX_SERIAL_PORTS that were just checking whether
they were within bounds for the serial_hds[] array and falling
back to NULL if not. This isn't needed with the serial_hd()
function, which returns NULL for all indexes beyond what the
user set up.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180420145249.32435-9-peter.maydell@linaro.org
Change all the uses of serial_hds[] to go via the new
serial_hd() function. Code change produced with:
find hw -name '*.[ch]' | xargs sed -i -e 's/serial_hds\[\([^]]*\)\]/serial_hd(\1)/g'
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20180420145249.32435-8-peter.maydell@linaro.org
there are 2 use cases to deal with:
1: fixed CPU models per board/soc
2: boards with user configurable cpu_model and fallback to
default cpu_model if user hasn't specified one explicitly
For the 1st
drop intermediate cpu_model parsing and use const cpu type
directly, which replaces:
typename = object_class_get_name(
cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
object_new(typename)
with
object_new(FOO_CPU_TYPE_NAME)
or
cpu_generic_init(BASE_CPU_TYPE, "my cpu model")
with
cpu_create(FOO_CPU_TYPE_NAME)
as result 1st use case doesn't have to invoke not necessary
translation and not needed code is removed.
For the 2nd
1: set default cpu type with MachineClass::default_cpu_type and
2: use generic cpu_model parsing that done before machine_init()
is run and:
2.1: drop custom cpu_model parsing where pattern is:
typename = object_class_get_name(
cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
[parse_features(typename, cpu_model, &err) ]
2.2: or replace cpu_generic_init() which does what
2.1 does + create_cpu(typename) with just
create_cpu(machine->cpu_type)
as result cpu_name -> cpu_type translation is done using
generic machine code one including parsing optional features
if supported/present (removes a bunch of duplicated cpu_model
parsing code) and default cpu type is defined in an uniform way
within machine_class_init callbacks instead of adhoc places
in boadr's machine_init code.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <1505318697-77161-6-git-send-email-imammedo@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Fix an error that meant we were wiring every UART's overflow
interrupts into the same inputs 0 and 1 of the OR gate,
rather than giving each its own input.
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 1505232834-20890-1-git-send-email-peter.maydell@linaro.org
A cut-and-paste error meant that instead of setting the
qdev parent bus for the SCC device we were setting it
twice for the ARMv7M container device. Fix this bug.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1500634509-28011-1-git-send-email-peter.maydell@linaro.org
The MPS2 FPGA images support ethernet via a LAN9220. We use
QEMU's LAN9118 model, which is software compatible except
that it is missing the checksum-offload feature.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1500029487-14822-9-git-send-email-peter.maydell@linaro.org
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Add the UARTs to the MPS2 board models.
Unfortunately the details of the wiring of the interrupts through
various OR gates differ between AN511 and AN385 so this can't
be purely a data-driven difference.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 1500029487-14822-4-git-send-email-peter.maydell@linaro.org
Model the ARM MPS2/MPS2+ FPGA based development board.
The MPS2 and MPS2+ dev boards are FPGA based (the 2+ has a bigger
FPGA but is otherwise the same as the 2). Since the CPU itself
and most of the devices are in the FPGA, the details of the board
as seen by the guest depend significantly on the FPGA image.
We model the following FPGA images:
"mps2_an385" -- Cortex-M3 as documented in ARM Application Note AN385
"mps2_an511" -- Cortex-M3 'DesignStart' as documented in AN511
They are fairly similar but differ in the details for some
peripherals.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1500029487-14822-2-git-send-email-peter.maydell@linaro.org
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
