Commit Graph

115698 Commits

Author SHA1 Message Date
Mark Cave-Ayland
570bf14394 fifo8: introduce fifo8_peek() function
This allows uses to peek the byte at the current head of the FIFO.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Octavian Purdila <tavip@google.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240828122258.928947-9-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Mark Cave-Ayland
28fbf33b3f fifo8: add fifo8_peek_buf() function
This is a wrapper function around fifo8_peekpop_buf() that allows the
caller to peek into the FIFO, including handling the case where there
is a wraparound of the internal FIFO buffer.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Octavian Purdila <tavip@google.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240828122258.928947-8-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Mark Cave-Ayland
cfc65db19b fifo8: honour do_pop argument in fifo8_peekpop_buf()
Pass the do_pop value from fifo8_peekpop_buf() to fifo8_peekpop_bufptr()
to allow peeks to the FIFO buffer, including adjusting the skip parameter
to handle the case where the internal FIFO buffer wraps around.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Octavian Purdila <tavip@google.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240828122258.928947-7-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Mark Cave-Ayland
7fd6866c3c fifo8: rename fifo8_pop_buf() to fifo8_peekpop_buf()
The fifo8_pop_buf() function will soon also be used for peek
operations, so rename the function accordingly. Create a new
fifo8_pop_buf() wrapper function that can be used by existing
callers.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Octavian Purdila <tavip@google.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240828122258.928947-6-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Mark Cave-Ayland
90c933255b fifo8: replace fifo8_pop_bufptr() with fifo8_peekpop_bufptr() in fifo8_pop_buf()
The upcoming peek functionality will require passing a non-zero
value to fifo8_peekpop_bufptr().

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Octavian Purdila <tavip@google.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240828122258.928947-5-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Mark Cave-Ayland
e8b33243bb fifo8: add skip parameter to fifo8_peekpop_bufptr()
The skip parameter specifies the number of bytes to be skipped
from the current FIFO head before the peek or pop operation.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Octavian Purdila <tavip@google.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240828122258.928947-4-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Mark Cave-Ayland
0b73afec0e fifo8: introduce head variable for fifo8_peekpop_bufptr()
Rather than operate on fifo->head directly, introduce a new head
variable which is set to the value of fifo->head and use it instead.
This is to allow future adjustment of the head position within the
internal FIFO buffer.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Octavian Purdila <tavip@google.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240828122258.928947-3-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Mark Cave-Ayland
f9309d965a fifo8: rename fifo8_peekpop_buf() to fifo8_peekpop_bufptr()
This is to emphasise that the function returns a pointer to the
internal FIFO buffer.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Octavian Purdila <tavip@google.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240828122258.928947-2-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-09-13 20:11:13 +02:00
CLEMENT MATHIEU--DRIF
9e64bec80e MAINTAINERS: Add myself as a reviewer of VT-d
Signed-off-by: Clément Mathieu--Drif <clement.mathieu--drif@eviden.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Message-ID: <20240820095112.61510-1-clement.mathieu--drif@eviden.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Philippe Mathieu-Daudé
40871ca758 hw/char/pl011: Rename RX FIFO methods
In preparation of having a TX FIFO, rename the RX FIFO methods.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240719181041.49545-12-philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Philippe Mathieu-Daudé
51b61dd4d5 hw/char/pl011: Warn when using disabled transmitter
We shouldn't transmit characters when the full UART or its
transmitter is disabled. However we don't want to break the
possibly incomplete "my first bare metal assembly program"s,
so we choose to simply display a warning when this occurs.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240719181041.49545-9-philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Philippe Mathieu-Daudé
dee8284b6f hw/char/pl011: Extract pl011_read_rxdata() from pl011_read()
To keep MemoryRegionOps read/write handlers with similar logic,
factor pl011_read_txdata() out of pl011_read(), similar to what
the previous commit did to pl011_write().
No functional change intended.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240719181041.49545-8-philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Philippe Mathieu-Daudé
bd6051b7cf hw/char/pl011: Extract pl011_write_txdata() from pl011_write()
When implementing FIFO, this code will become more complex.
Start by factoring it out to a new pl011_write_txdata() function.
No functional change intended.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240719181041.49545-7-philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Philippe Mathieu-Daudé
02b1f7f619 hw/char/pl011: Split RX/TX path of pl011_reset_fifo()
To be able to reset the RX or TX FIFO separately,
split pl011_reset_fifo() in two.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240719181041.49545-6-philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Philippe Mathieu-Daudé
1fb2721aa6 hw/char/pl011: Move pl011_loopback_enabled|tx() around
We'll soon use pl011_loopback_enabled() and pl011_loopback_tx()
from functions defined before their declarations. In order to
avoid forward-declaring them, move them around.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20240719181041.49545-5-philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Philippe Mathieu-Daudé
566080226c hw/char/pl011: Move pl011_put_fifo() earlier
Avoid forward-declaring pl011_put_fifo() by moving it earlier.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20240719181041.49545-4-philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Philippe Mathieu-Daudé
41df6c8300 hw/char/pl011: Remove unused 'readbuff' field
Since its introduction in commit cdbdb648b7 ("ARM Versatile
Platform Baseboard emulation.") PL011State::readbuff as never
been used. Remove it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20240719181041.49545-3-philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Philippe Mathieu-Daudé
d83234d347 target/riscv: Remove the deprecated 'any' CPU type
The 'any' CPU is deprecated since commit f57d5f8004
("target/riscv: deprecate the 'any' CPU type"). Users
are better off using the default CPUs or the 'max' CPU.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20240724130717.95629-1-philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Philippe Mathieu-Daudé
990d2c185c seccomp: Remove check for CRIS host
As per the deprecation notice in commit c7bbef4023:

  The CRIS architecture was pulled from Linux in 4.17 and
  the compiler is no longer packaged in any distro [...].

It is now unlikely QEMU is build on CRIS host.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Message-ID: <20240904143603.52934-16-philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Philippe Mathieu-Daudé
44e4075bf4 target/cris: Remove the deprecated CRIS target
The CRIS target is deprecated since v9.0 (commit c7bbef4023
"docs: mark CRIS support as deprecated").

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Message-ID: <20240904143603.52934-14-philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Philippe Mathieu-Daudé
01d01edc9f system: Remove support for CRIS target
We are about to remove the CRIS target, so remove
the sysemu part. This remove the CRIS 'none' machine.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Message-ID: <20240904143603.52934-13-philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Philippe Mathieu-Daudé
5b0b67d49d hw/timer: Remove TYPE_ETRAX_FS_TIMER device
We just removed the single machine using it (axis-dev88).

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Message-ID: <20240904143603.52934-12-philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Philippe Mathieu-Daudé
698e0fa0c5 hw/dma: Remove ETRAX_FS DMA device
We just removed the single machine calling etraxfs_dmac_init()
(the axis-dev88 machine).

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Message-ID: <20240904143603.52934-11-philmd@linaro.org>
2024-09-13 20:11:13 +02:00
Philippe Mathieu-Daudé
0167420cde hw/net: Remove TYPE_ETRAX_FS_ETH device
We just removed the single machine using it (axis-dev88).

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Message-ID: <20240904143603.52934-10-philmd@linaro.org>
2024-09-13 20:11:12 +02:00
Philippe Mathieu-Daudé
c069479d8c hw/char: Remove TYPE_ETRAX_FS_SERIAL device
We just removed the single machine using it (axis-dev88).

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Message-ID: <20240904143603.52934-9-philmd@linaro.org>
2024-09-13 20:11:02 +02:00
Philippe Mathieu-Daudé
c264c074d8 hw/intc: Remove TYPE_ETRAX_FS_PIC device
We just removed the single machine using it (axis-dev88).

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Message-ID: <20240904143603.52934-8-philmd@linaro.org>
2024-09-13 20:10:50 +02:00
Philippe Mathieu-Daudé
6006be5265 hw/cris: Remove image loader helper
No more CRIS machine uses cris_load_image(), remove it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Message-ID: <20240904143603.52934-7-philmd@linaro.org>
2024-09-13 20:10:50 +02:00
Philippe Mathieu-Daudé
3300f714f3 hw/cris: Remove the axis-dev88 machine
This machine was deprecated for the v9.0 release in commit
c7bbef4023 ("docs: mark CRIS support as deprecated").

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Message-ID: <20240904143603.52934-6-philmd@linaro.org>
2024-09-13 20:10:50 +02:00
Philippe Mathieu-Daudé
bff4b02ca1 linux-user: Remove support for CRIS target
As per the deprecation notice in commit c7bbef4023:

  The CRIS architecture was pulled from Linux in 4.17 and
  the compiler is no longer packaged in any distro making
  it harder to run the `check-tcg` tests. Unless we can
  improve the testing situation there is a chance the code
  will bitrot without anyone noticing.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Message-ID: <20240904143603.52934-5-philmd@linaro.org>
2024-09-13 20:10:50 +02:00
Philippe Mathieu-Daudé
5fce444152 buildsys: Remove CRIS cross container
We removed the cross compiled CRIS tests in the previous commit.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Message-ID: <20240904143603.52934-4-philmd@linaro.org>
2024-09-13 20:10:50 +02:00
Philippe Mathieu-Daudé
0024b62a21 tests/tcg: Remove CRIS bare test files
We are going to remove the CRIS target.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Message-ID: <20240904143603.52934-3-philmd@linaro.org>
2024-09-13 20:10:50 +02:00
Philippe Mathieu-Daudé
c66c51461c tests/tcg: Remove CRIS libc test files
We never compiled / ran these tests.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Message-ID: <20240904143603.52934-2-philmd@linaro.org>
2024-09-13 20:10:49 +02:00
Philippe Mathieu-Daudé
76180a677c hw/sh4: Remove sh7750_register_io_device() helper
sh7750_register_io_device() was only used by the TC58128
NAND EEPROM which has been removed in the previous commit.
Remove it as unused code.

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>
Message-ID: <20240903153959.18392-4-philmd@linaro.org>
2024-09-13 20:10:49 +02:00
Philippe Mathieu-Daudé
e4f6035585 hw/block: Remove TC58128 NAND EEPROM
The TC58128 NAND EEPROM is not user creatable and
needs to be instanciated in the code via tc58128_init().

Only the SHIX machine was using it, and it was removed
in the previous commit. Since the TC58128 has no more
users, remove it too.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-ID: <20240903153959.18392-3-philmd@linaro.org>
2024-09-13 20:10:49 +02:00
Philippe Mathieu-Daudé
0ea0538fae hw/sh4: Remove the deprecated SHIX machine
The SHIX machine is deprecated since v9.0 (commit
322b038c94 "target/sh4: Deprecate the shix machine").
Time to remove it.

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>
Message-ID: <20240903153959.18392-2-philmd@linaro.org>
2024-09-13 20:10:49 +02:00
Philippe Mathieu-Daudé
fa6d4d7137 hw/intc/loongson_ipi: Remove unused headers
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Tested-by: Bibo Mao <maobibo@loongson.cn>
Acked-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: <20240718133312.10324-19-philmd@linaro.org>
2024-09-13 20:10:49 +02:00
Philippe Mathieu-Daudé
50e4291d62 hw/pci-host/designware: Add 'host_mem' variable for clarity
designware_pcie_root_realize() uses get_system_memory()
as the "host side memory region", as opposed to the "PCI
side" one. Introduce the 'host_mem' variable for clarity.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Gustavo Romero <gustavo.romero@linaro.org>
Message-Id: <20231012121857.31873-4-philmd@linaro.org>
2024-09-13 20:10:49 +02:00
Philippe Mathieu-Daudé
13a07eb146 hw/pci-host/designware: Declare CPU QOM types using DEFINE_TYPES() macro
When multiple QOM types are registered in the same file,
it is simpler to use the the DEFINE_TYPES() macro. In
particular because type array declared with such macro
are easier to review.

Remove a pointless structure declaration in "designware.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Gustavo Romero <gustavo.romero@linaro.org>
Message-Id: <20231012121857.31873-2-philmd@linaro.org>
2024-09-13 20:10:49 +02:00
Peter Maydell
28ae3179fc target-arm queue:
* s390: convert s390 virtio-ccw and CPU to three-phase reset
  * reset: remove now-unused device_class_set_parent_reset()
  * reset: introduce device_class_set_legacy_reset()
  * reset: remove unneeded transitional machinery
  * kvm: Use 'unsigned long' for request argument in functions wrapping ioctl()
  * hvf: arm: Implement and use hvf_get_physical_address_range
    so VMs can have larger-than-36-bit IPA spaces when the host
    supports this
  * target/arm/tcg: refine cache descriptions with a wrapper
  * hw/net/can/xlnx-versal-canfd: fix various bugs
  * MAINTAINERS: update versal, CAN maintainer entries
  * hw/intc/arm_gic: fix spurious level triggered interrupts
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Merge tag 'pull-target-arm-20240913' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
 * s390: convert s390 virtio-ccw and CPU to three-phase reset
 * reset: remove now-unused device_class_set_parent_reset()
 * reset: introduce device_class_set_legacy_reset()
 * reset: remove unneeded transitional machinery
 * kvm: Use 'unsigned long' for request argument in functions wrapping ioctl()
 * hvf: arm: Implement and use hvf_get_physical_address_range
   so VMs can have larger-than-36-bit IPA spaces when the host
   supports this
 * target/arm/tcg: refine cache descriptions with a wrapper
 * hw/net/can/xlnx-versal-canfd: fix various bugs
 * MAINTAINERS: update versal, CAN maintainer entries
 * hw/intc/arm_gic: fix spurious level triggered interrupts

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# gpg: Signature made Fri 13 Sep 2024 16:13:13 BST
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# gpg:                 aka "Peter Maydell <peter@archaic.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* tag 'pull-target-arm-20240913' of https://git.linaro.org/people/pmaydell/qemu-arm: (27 commits)
  hw/intc/arm_gic: fix spurious level triggered interrupts
  MAINTAINERS: Add my-self as CAN maintainer
  MAINTAINERS: Update Xilinx Versal OSPI maintainer's email address
  MAINTAINERS: Remove Vikram Garhwal as maintainer
  hw/net/can/xlnx-versal-canfd: Fix FIFO issues
  hw/net/can/xlnx-versal-canfd: Simplify DLC conversions
  hw/net/can/xlnx-versal-canfd: Fix byte ordering
  hw/net/can/xlnx-versal-canfd: Handle flags correctly
  hw/net/can/xlnx-versal-canfd: Translate CAN ID registers
  hw/net/can/xlnx-versal-canfd: Fix CAN FD flag check
  hw/net/can/xlnx-versal-canfd: Fix interrupt level
  target/arm/tcg: refine cache descriptions with a wrapper
  hvf: arm: Implement and use hvf_get_physical_address_range
  hvf: Split up hv_vm_create logic per arch
  hw/boards: Add hvf_get_physical_address_range to MachineClass
  kvm: Use 'unsigned long' for request argument in functions wrapping ioctl()
  hw/core/resettable: Remove transitional_function machinery
  hw/core/qdev: Simplify legacy_reset handling
  hw: Remove device_phases_reset()
  hw: Rename DeviceClass::reset field to legacy_reset
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-09-13 16:14:33 +01:00
Jan Klötzke
110684c9a6 hw/intc/arm_gic: fix spurious level triggered interrupts
On GICv2 and later, level triggered interrupts are pending when either
the interrupt line is asserted or the interrupt was made pending by a
GICD_ISPENDRn write. Making a level triggered interrupt pending by
software persists until either the interrupt is acknowledged or cleared
by writing GICD_ICPENDRn. As long as the interrupt line is asserted,
the interrupt is pending in any case.

This logic is transparently implemented in gic_test_pending() for
GICv1 and GICv2.  The function combines the "pending" irq_state flag
(used for edge triggered interrupts and software requests) and the
line status (tracked in the "level" field).  However, we also
incorrectly set the pending flag on a guest write to GICD_ISENABLERn
if the line of a level triggered interrupt was asserted.  This keeps
the interrupt pending even if the line is de-asserted after some
time.

This incorrect logic is a leftover of the initial 11MPCore GIC
implementation.  That handles things slightly differently to the
architected GICv1 and GICv2.  The 11MPCore TRM does not give a lot of
detail on the corner cases of its GIC's behaviour, and historically
we have not wanted to investigate exactly what it does in reality, so
QEMU's GIC model takes the approach of "retain our existing behaviour
for 11MPCore, and implement the architectural standard for later GIC
revisions".

On that basis, commit 8d999995e4 in 2013 is where we added the
"level-triggered interrupt with the line asserted" handling to
gic_test_pending(), and we deliberately kept the old behaviour of
gic_test_pending() for REV_11MPCORE.  That commit should have added
the "only if 11MPCore" condition to the setting of the pending bit on
writes to GICD_ISENABLERn, but forgot it.

Add the missing "if REV_11MPCORE" condition, so that our behaviour
on GICv1 and GICv2 matches the GIC architecture requirements.

Cc: qemu-stable@nongnu.org
Fixes: 8d999995e4 ("arm_gic: Fix GIC pending behavior")
Signed-off-by: Jan Klötzke <jan.kloetzke@kernkonzept.com>
Message-id: 20240911114826.3558302-1-jan.kloetzke@kernkonzept.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: expanded comment a little and converted to coding-style form;
 expanded commit message with the historical backstory]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-09-13 15:31:50 +01:00
Francisco Iglesias
02c5e065e6 MAINTAINERS: Add my-self as CAN maintainer
Signed-off-by: Francisco Iglesias <francisco.iglesias@amd.com>
Message-id: 20240906181645.40359-4-francisco.iglesias@amd.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-09-13 15:31:50 +01:00
Francisco Iglesias
dbd1fbed1a MAINTAINERS: Update Xilinx Versal OSPI maintainer's email address
Update my xilinx.com email address to my amd.com address.

Signed-off-by: Francisco Iglesias <francisco.iglesias@amd.com>
Message-id: 20240906181645.40359-3-francisco.iglesias@amd.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-09-13 15:31:50 +01:00
Francisco Iglesias
c009d71572 MAINTAINERS: Remove Vikram Garhwal as maintainer
Vikram's email is bouncing, pause his maintainership until a new email is
provided.

Signed-off-by: Francisco Iglesias <francisco.iglesias@amd.com>
Message-id: 20240906181645.40359-2-francisco.iglesias@amd.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-09-13 15:31:49 +01:00
Doug Brown
d4b668b799 hw/net/can/xlnx-versal-canfd: Fix FIFO issues
The read index should not be changed when storing a new message into the
RX or TX FIFO. Changing it at this point will cause the reader to get
out of sync. The wrapping of the read index is already handled by the
pre-write functions for the FIFO status registers anyway.

Additionally, the calculation for wrapping the store index was off by
one, which caused new messages to be written to the wrong location in
the FIFO. This caused incorrect messages to be delivered.

Signed-off-by: Doug Brown <doug@schmorgal.com>
Reviewed-by: Francisco Iglesias <francisco.iglesias@amd.com>
Message-id: 20240827034927.66659-8-doug@schmorgal.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-09-13 15:31:49 +01:00
Doug Brown
12d60ca09e hw/net/can/xlnx-versal-canfd: Simplify DLC conversions
Use QEMU's helper functions can_dlc2len() and can_len2dlc() for
translating between the raw DLC value and the SocketCAN length value.
This also has the side effect of correctly handling received CAN FD
frames with a DLC of 0-8, which was broken previously.

Signed-off-by: Doug Brown <doug@schmorgal.com>
Reviewed-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Reviewed-by: Francisco Iglesias <francisco.iglesias@amd.com>
Message-id: 20240827034927.66659-7-doug@schmorgal.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-09-13 15:31:49 +01:00
Doug Brown
be243e9ddb hw/net/can/xlnx-versal-canfd: Fix byte ordering
The endianness of the CAN data was backwards in each group of 4 bytes.
For example, the following data:

00 11 22 33 44 55 66 77

was showing up like this:

33 22 11 00 77 66 55 44

Fix both the TX and RX code to put the data in the correct order.

Signed-off-by: Doug Brown <doug@schmorgal.com>
Reviewed-by: Francisco Iglesias <francisco.iglesias@amd.com>
Acked-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Message-id: 20240827034927.66659-6-doug@schmorgal.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-09-13 15:31:48 +01:00
Doug Brown
7f34aae641 hw/net/can/xlnx-versal-canfd: Handle flags correctly
Add support for QEMU_CAN_FRMF_ESI and QEMU_CAN_FRMF_BRS flags, and
ensure frame->flags is always initialized to 0.

Note that the Xilinx IP core doesn't allow manually setting the ESI bit
during transmits, so it's only implemented for the receive case.

Signed-off-by: Doug Brown <doug@schmorgal.com>
Reviewed-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Message-id: 20240827034927.66659-5-doug@schmorgal.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-09-13 15:31:48 +01:00
Doug Brown
77dcbf16d9 hw/net/can/xlnx-versal-canfd: Translate CAN ID registers
Previously the emulated CAN ID register was being set to the exact same
value stored in qemu_can_frame.can_id. This doesn't work correctly
because the Xilinx IP core uses a different bit arrangement than
qemu_can_frame for all of its ID registers. Correct this problem for
both RX and TX, including RX filtering.

Signed-off-by: Doug Brown <doug@schmorgal.com>
Reviewed-by: Francisco Iglesias <francisco.iglesias@amd.com>
Acked-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Message-id: 20240827034927.66659-4-doug@schmorgal.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-09-13 15:31:48 +01:00
Doug Brown
cd1e485fac hw/net/can/xlnx-versal-canfd: Fix CAN FD flag check
When checking the QEMU_CAN_FRMF_TYPE_FD flag, we need to ignore other
potentially set flags. Before this change, received CAN FD frames from
SocketCAN weren't being recognized as CAN FD.

Signed-off-by: Doug Brown <doug@schmorgal.com>
Reviewed-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Reviewed-by: Francisco Iglesias <francisco.iglesias@amd.com>
Message-id: 20240827034927.66659-3-doug@schmorgal.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-09-13 15:31:48 +01:00
Doug Brown
2215e297b9 hw/net/can/xlnx-versal-canfd: Fix interrupt level
The interrupt level should be 0 or 1. The existing code was using the
interrupt flags to determine the level. In the only machine currently
supported (xlnx-versal-virt), the GICv3 was masking off all bits except
bit 0 when applying it, resulting in the IRQ never being delivered.

Signed-off-by: Doug Brown <doug@schmorgal.com>
Reviewed-by: Francisco Iglesias <francisco.iglesias@amd.com>
Reviewed-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Message-id: 20240827034927.66659-2-doug@schmorgal.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-09-13 15:31:47 +01:00