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2021-12-15hw/arm: Don't include qemu-common.h unnecessarilyPeter Maydell
A lot of C files in hw/arm include qemu-common.h when they don't need anything from it. Drop the include lines. omap1.c, pxa2xx.c and strongarm.c retain the include because they use it for the prototype of qemu_get_timedate(). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Reviewed-by: Yoshinori Sato <ysato@users.sourceforge.jp> Message-id: 20211129200510.1233037-5-peter.maydell@linaro.org
2021-09-01hw/arm/stm32f405: Wire up sysclk and refclkPeter Maydell
Wire up the sysclk and refclk for the stm32f405 SoC. This SoC always runs the systick refclk at 1/8 the frequency of the main CPU clock, so the board code only needs to provide a single sysclk clock. Because there is only one board using this SoC, we convert the SoC and the board together, rather than splitting it into "add clock to SoC; connect clock in board; add error check in SoC code that clock is wired up". When the systick device starts honouring its clock inputs, this will fix an emulation inaccuracy in the netduinoplus2 board where the systick reference clock was running at 1MHz rather than 21MHz. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Alexandre Iooss <erdnaxe@crans.org> Reviewed-by: Luc Michel <luc@lmichel.fr> Message-id: 20210812093356.1946-14-peter.maydell@linaro.org
2020-07-10error: Eliminate error_propagate() with Coccinelle, part 1Markus Armbruster
When all we do with an Error we receive into a local variable is propagating to somewhere else, we can just as well receive it there right away. Convert if (!foo(..., &err)) { ... error_propagate(errp, err); ... return ... } to if (!foo(..., errp)) { ... ... return ... } where nothing else needs @err. Coccinelle script: @rule1 forall@ identifier fun, err, errp, lbl; expression list args, args2; binary operator op; constant c1, c2; symbol false; @@ if ( ( - fun(args, &err, args2) + fun(args, errp, args2) | - !fun(args, &err, args2) + !fun(args, errp, args2) | - fun(args, &err, args2) op c1 + fun(args, errp, args2) op c1 ) ) { ... when != err when != lbl: when strict - error_propagate(errp, err); ... when != err ( return; | return c2; | return false; ) } @rule2 forall@ identifier fun, err, errp, lbl; expression list args, args2; expression var; binary operator op; constant c1, c2; symbol false; @@ - var = fun(args, &err, args2); + var = fun(args, errp, args2); ... when != err if ( ( var | !var | var op c1 ) ) { ... when != err when != lbl: when strict - error_propagate(errp, err); ... when != err ( return; | return c2; | return false; | return var; ) } @depends on rule1 || rule2@ identifier err; @@ - Error *err = NULL; ... when != err Not exactly elegant, I'm afraid. The "when != lbl:" is necessary to avoid transforming if (fun(args, &err)) { goto out } ... out: error_propagate(errp, err); even though other paths to label out still need the error_propagate(). For an actual example, see sclp_realize(). Without the "when strict", Coccinelle transforms vfio_msix_setup(), incorrectly. I don't know what exactly "when strict" does, only that it helps here. The match of return is narrower than what I want, but I can't figure out how to express "return where the operand doesn't use @err". For an example where it's too narrow, see vfio_intx_enable(). Silently fails to convert hw/arm/armsse.c, because Coccinelle gets confused by ARMSSE being used both as typedef and function-like macro there. Converted manually. Line breaks tidied up manually. One nested declaration of @local_err deleted manually. Preexisting unwanted blank line dropped in hw/riscv/sifive_e.c. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20200707160613.848843-35-armbru@redhat.com>
2020-07-10qom: Use returned bool to check for failure, Coccinelle partMarkus Armbruster
The previous commit enables conversion of foo(..., &err); if (err) { ... } to if (!foo(..., errp)) { ... } for QOM functions that now return true / false on success / error. Coccinelle script: @@ identifier fun = { object_apply_global_props, object_initialize_child_with_props, object_initialize_child_with_propsv, object_property_get, object_property_get_bool, object_property_parse, object_property_set, object_property_set_bool, object_property_set_int, object_property_set_link, object_property_set_qobject, object_property_set_str, object_property_set_uint, object_set_props, object_set_propv, user_creatable_add_dict, user_creatable_complete, user_creatable_del }; expression list args, args2; typedef Error; Error *err; @@ - fun(args, &err, args2); - if (err) + if (!fun(args, &err, args2)) { ... } Fails to convert hw/arm/armsse.c, because Coccinelle gets confused by ARMSSE being used both as typedef and function-like macro there. Convert manually. Line breaks tidied up manually. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20200707160613.848843-29-armbru@redhat.com>
2020-07-10qom: Put name parameter before value / visitor parameterMarkus Armbruster
The object_property_set_FOO() setters take property name and value in an unusual order: void object_property_set_FOO(Object *obj, FOO_TYPE value, const char *name, Error **errp) Having to pass value before name feels grating. Swap them. Same for object_property_set(), object_property_get(), and object_property_parse(). Convert callers with this Coccinelle script: @@ identifier fun = { object_property_get, object_property_parse, object_property_set_str, object_property_set_link, object_property_set_bool, object_property_set_int, object_property_set_uint, object_property_set, object_property_set_qobject }; expression obj, v, name, errp; @@ - fun(obj, v, name, errp) + fun(obj, name, v, errp) Chokes on hw/arm/musicpal.c's lcd_refresh() with the unhelpful error message "no position information". Convert that one manually. Fails to convert hw/arm/armsse.c, because Coccinelle gets confused by ARMSSE being used both as typedef and function-like macro there. Convert manually. Fails to convert hw/rx/rx-gdbsim.c, because Coccinelle gets confused by RXCPU being used both as typedef and function-like macro there. Convert manually. The other files using RXCPU that way don't need conversion. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20200707160613.848843-27-armbru@redhat.com> [Straightforwad conflict with commit 2336172d9b "audio: set default value for pcspk.iobase property" resolved]
2020-07-10qdev: Use returned bool to check for qdev_realize() etc. failureMarkus Armbruster
Convert foo(..., &err); if (err) { ... } to if (!foo(..., &err)) { ... } for qdev_realize(), qdev_realize_and_unref(), qbus_realize() and their wrappers isa_realize_and_unref(), pci_realize_and_unref(), sysbus_realize(), sysbus_realize_and_unref(), usb_realize_and_unref(). Coccinelle script: @@ identifier fun = { isa_realize_and_unref, pci_realize_and_unref, qbus_realize, qdev_realize, qdev_realize_and_unref, sysbus_realize, sysbus_realize_and_unref, usb_realize_and_unref }; expression list args, args2; typedef Error; Error *err; @@ - fun(args, &err, args2); - if (err) + if (!fun(args, &err, args2)) { ... } Chokes on hw/arm/musicpal.c's lcd_refresh() with the unhelpful error message "no position information". Nothing to convert there; skipped. Fails to convert hw/arm/armsse.c, because Coccinelle gets confused by ARMSSE being used both as typedef and function-like macro there. Converted manually. A few line breaks tidied up manually. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Greg Kurz <groug@kaod.org> Message-Id: <20200707160613.848843-5-armbru@redhat.com>
2020-07-02arm/stm32f205 arm/stm32f405: Fix realize error API violationMarkus Armbruster
The Error ** argument must be NULL, &error_abort, &error_fatal, or a pointer to a variable containing NULL. Passing an argument of the latter kind twice without clearing it in between is wrong: if the first call sets an error, it no longer points to NULL for the second call. stm32f205_soc_realize() and stm32f405_soc_realize() are wrong that way: they pass &err to object_property_set_int() without checking it, and then to qdev_realize(). Harmless, because the former can't actually fail here. Fix by passing &error_abort instead. Cc: Alistair Francis <alistair@alistair23.me> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: qemu-arm@nongnu.org Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20200630090351.1247703-23-armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2020-06-15qdev: Convert bus-less devices to qdev_realize() with CoccinelleMarkus Armbruster
All remaining conversions to qdev_realize() are for bus-less devices. Coccinelle script: // only correct for bus-less @dev! @@ expression errp; expression dev; @@ - qdev_init_nofail(dev); + qdev_realize(dev, NULL, &error_fatal); @ depends on !(file in "hw/core/qdev.c") && !(file in "hw/core/bus.c")@ expression errp; expression dev; symbol true; @@ - object_property_set_bool(OBJECT(dev), true, "realized", errp); + qdev_realize(DEVICE(dev), NULL, errp); @ depends on !(file in "hw/core/qdev.c") && !(file in "hw/core/bus.c")@ expression errp; expression dev; symbol true; @@ - object_property_set_bool(dev, true, "realized", errp); + qdev_realize(DEVICE(dev), NULL, errp); Note that Coccinelle chokes on ARMSSE typedef vs. macro in hw/arm/armsse.c. Worked around by temporarily renaming the macro for the spatch run. Signed-off-by: Markus Armbruster <armbru@redhat.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20200610053247.1583243-57-armbru@redhat.com>
2020-06-15sysbus: Convert qdev_set_parent_bus() use with Coccinelle, part 2Markus Armbruster
This is the same transformation as in the previous commit, except sysbus_init_child_obj() and realize are too separated for the commit's Coccinelle script to handle, typically because sysbus_init_child_obj() is in a device's instance_init() method, and the matching realize is in its realize() method. Perhaps a Coccinelle wizard could make it transform that pattern, but I'm just a bungler, and the best I can do is transforming the two separate parts separately: @@ expression errp; expression child; symbol true; @@ - object_property_set_bool(OBJECT(child), true, "realized", errp); + sysbus_realize(SYS_BUS_DEVICE(child), errp); // only correct with a matching sysbus_init_child_obj() transformation! @@ expression errp; expression child; symbol true; @@ - object_property_set_bool(child, true, "realized", errp); + sysbus_realize(SYS_BUS_DEVICE(child), errp); // only correct with a matching sysbus_init_child_obj() transformation! @@ expression child; @@ - qdev_init_nofail(DEVICE(child)); + sysbus_realize(SYS_BUS_DEVICE(child), &error_fatal); // only correct with a matching sysbus_init_child_obj() transformation! @@ expression child; expression dev; @@ dev = DEVICE(child); ... - qdev_init_nofail(dev); + sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal); // only correct with a matching sysbus_init_child_obj() transformation! @@ expression child; identifier dev; @@ DeviceState *dev = DEVICE(child); ... - qdev_init_nofail(dev); + sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal); // only correct with a matching sysbus_init_child_obj() transformation! @@ expression parent, name, size, type; expression child; symbol true; @@ - sysbus_init_child_obj(parent, name, child, size, type); + sysbus_init_child_XXX(parent, name, child, size, type); @@ expression parent, propname, type; expression child; @@ - sysbus_init_child_XXX(parent, propname, child, sizeof(*child), type) + object_initialize_child(parent, propname, child, type) @@ expression parent, propname, type; expression child; @@ - sysbus_init_child_XXX(parent, propname, &child, sizeof(child), type) + object_initialize_child(parent, propname, &child, type) This script is *unsound*: we need to manually verify init and realize conversions are properly paired. This commit has only the pairs where object_initialize_child()'s @child and sysbus_realize()'s @dev argument text match exactly within the same source file. Note that Coccinelle chokes on ARMSSE typedef vs. macro in hw/arm/armsse.c. Worked around by temporarily renaming the macro for the spatch run. Signed-off-by: Markus Armbruster <armbru@redhat.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20200610053247.1583243-49-armbru@redhat.com>
2020-06-15qom: Less verbose object_initialize_child()Markus Armbruster
All users of object_initialize_child() pass the obvious child size argument. Almost all pass &error_abort and no properties. Tiresome. Rename object_initialize_child() to object_initialize_child_with_props() to free the name. New convenience wrapper object_initialize_child() automates the size argument, and passes &error_abort and no properties. Rename object_initialize_childv() to object_initialize_child_with_propsv() for consistency. Convert callers with this Coccinelle script: @@ expression parent, propname, type; expression child, size; symbol error_abort; @@ - object_initialize_child(parent, propname, OBJECT(child), size, type, &error_abort, NULL) + object_initialize_child(parent, propname, child, size, type, &error_abort, NULL) @@ expression parent, propname, type; expression child; symbol error_abort; @@ - object_initialize_child(parent, propname, child, sizeof(*child), type, &error_abort, NULL) + object_initialize_child(parent, propname, child, type) @@ expression parent, propname, type; expression child; symbol error_abort; @@ - object_initialize_child(parent, propname, &child, sizeof(child), type, &error_abort, NULL) + object_initialize_child(parent, propname, &child, type) @@ expression parent, propname, type; expression child, size, err; expression list props; @@ - object_initialize_child(parent, propname, child, size, type, err, props) + object_initialize_child_with_props(parent, propname, child, size, type, err, props) Note that Coccinelle chokes on ARMSSE typedef vs. macro in hw/arm/armsse.c. Worked around by temporarily renaming the macro for the spatch run. Signed-off-by: Markus Armbruster <armbru@redhat.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> [Rebased: machine opentitan is new (commit fe0fe4735e7)] Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20200610053247.1583243-37-armbru@redhat.com>
2020-06-15arm/stm32f405: Fix realization of "stm32f2xx-adc" devicesMarkus Armbruster
stm32f405_soc_initfn() creates six such devices, but stm32f405_soc_realize() realizes only one. Affects machine netduinoplus2. In theory, a device becomes real only on realize. In practice, the transition from unreal to real is a fuzzy one. The work to make a device real can be spread between realize methods (fine), instance_init methods (wrong), and board code wiring up the device (fine as long as it effectively happens on realize). Depending on what exactly is done where, a device can work even when we neglect to realize it. The five unrealized devices appear to stay unreal: neither MMIO nor IRQ get wired up. Fix stm32f405_soc_realize() to realize and wire up all six. Visible in "info qtree": bus: main-system-bus type System dev: stm32f405-soc, id "" cpu-type = "cortex-m4-arm-cpu" dev: stm32f2xx-adc, id "" gpio-out "sysbus-irq" 1 - mmio ffffffffffffffff/00000000000000ff + mmio 0000000040012000/00000000000000ff dev: stm32f2xx-adc, id "" gpio-out "sysbus-irq" 1 - mmio ffffffffffffffff/00000000000000ff + mmio 0000000040012100/00000000000000ff dev: stm32f2xx-adc, id "" gpio-out "sysbus-irq" 1 - mmio ffffffffffffffff/00000000000000ff + mmio 0000000040012200/00000000000000ff dev: stm32f2xx-adc, id "" gpio-out "sysbus-irq" 1 - mmio ffffffffffffffff/00000000000000ff + mmio 0000000040012300/00000000000000ff dev: stm32f2xx-adc, id "" gpio-out "sysbus-irq" 1 - mmio 0000000040012000/00000000000000ff + mmio 0000000040012400/00000000000000ff dev: stm32f2xx-adc, id "" gpio-out "sysbus-irq" 1 - mmio ffffffffffffffff/00000000000000ff + mmio 0000000040012500/00000000000000ff dev: armv7m, id "" Fixes: 529fc5fd3e18ace8f739afd02dc0953354f39442 Cc: Alistair Francis <alistair@alistair23.me> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: qemu-arm@nongnu.org Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20200609122339.937862-2-armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
2020-03-17hw/arm: Let devices own the MemoryRegion they createPhilippe Mathieu-Daudé
Avoid orphan memory regions being added in the /unattached QOM container. This commit was produced with the Coccinelle script scripts/coccinelle/memory-region-housekeeping.cocci. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-03-17hw/arm: Remove unnecessary memory_region_set_readonly() on ROM aliasPhilippe Mathieu-Daudé
This commit was produced with the Coccinelle script scripts/coccinelle/memory-region-housekeeping.cocci. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-03-17hw/arm/stm32: Use memory_region_init_rom() with read-only regionsPhilippe Mathieu-Daudé
The scripts/coccinelle/memory-region-housekeeping.cocci reported: * TODO [[view:./hw/arm/stm32f205_soc.c::face=ovl-face1::linb=96::colb=4::cole=26][potential use of memory_region_init_rom*() in ./hw/arm/stm32f205_soc.c::96]] * TODO [[view:./hw/arm/stm32f405_soc.c::face=ovl-face1::linb=98::colb=4::cole=26][potential use of memory_region_init_rom*() in ./hw/arm/stm32f405_soc.c::98]] We can indeed replace the memory_region_init_ram() and memory_region_set_readonly() calls by memory_region_init_rom(). Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-01-24qdev: set properties with device_class_set_props()Marc-André Lureau
The following patch will need to handle properties registration during class_init time. Let's use a device_class_set_props() setter. spatch --macro-file scripts/cocci-macro-file.h --sp-file ./scripts/coccinelle/qdev-set-props.cocci --keep-comments --in-place --dir . @@ typedef DeviceClass; DeviceClass *d; expression val; @@ - d->props = val + device_class_set_props(d, val) Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20200110153039.1379601-20-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-17hw/arm: Add the STM32F4xx SoCAlistair Francis
Signed-off-by: Alistair Francis <alistair@alistair23.me> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1d145c4c13e5fa140caf131232a6f524c88fcd72.1576658572.git.alistair@alistair23.me Signed-off-by: Peter Maydell <peter.maydell@linaro.org>