- Remove most of the ifeq-conditions and replace them with variables.
- Move the -I flag for 3rd party headers to opensbi/Make.defs
This clean-up / generalization makes it much simpler to add a new SBI
implementation, without the need to add a bunch of ifeq / elif conditions
to the makefile.
Let the user pick what runs on the harts. For example, the
default configuration now supports NuttX on hart2 and Linux
kernel on harts 3 and 4. Also fix a few issues in the code.
Signed-off-by: Eero Nurkkala <eero.nurkkala@offcode.fi>
g_mpfs_ack_sig and g_mpfs_rx_sig are better used with
SEM_INITIALIZER(0) (signalling) rather than with
SEM_INITIALIZER(1) (mutual exclusion).
Co-authored-by: Petro Karashchenko <petro.karashchenko@gmail.com>
Signed-off-by: Eero Nurkkala <eero.nurkkala@offcode.fi>
Number of channels are now set based on enabled modules (channels) in
configuration instead of the usage of static 4.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
Number of channels are now set based on enabled channels in configuration
instead of the usage of static 4.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
1 move fpu register to XCP_REGS
2 move save & restore fpu register to context_save/restore
Consistency with other archs.
Signed-off-by: zhuyanlin <zhuyanlin1@xiaomi.com>
PR#6249 was already merged without the review fixes. Provide the
fixes here on a separate patch.
Co-authored-by: Petro Karashchenko <petro.karashchenko@gmail.com>
Signed-off-by: Eero Nurkkala <eero.nurkkala@offcode.fi>
Summary:
- This commit adds MMU support for qemu-rv
- Please note that mtimer is disabled for S-mode because
the mtimer needs to be accessed in M-mode
Impact:
- qemu-rv only
Testing:
- Tested with rv-virt:knsh64 (will be pushed later)
Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
This provides an example of Asymmetric Multiprocessing (AMP). The
master from Linux sends pings that this NuttX echoes back. The system
uses RPMsg from OpenAMP.
The Inter-Hart Communication module is present in the vendor's software
stack with the tag "2021.11". The software is present on github at the
polarfire-soc project. The following conditions must be met:
1. FPGA programmed with 2021.11 software
2. HSS (Vendor bootloader) with 2021.11 software
3. U-boot and Linux kernel from 2011.11 software
Currently the IHC works as a slave only on the hart number 4.
On the NuttX side, this patch uses rptun that incorporates rpmsg and
virtio. If it used only rpmsg and virtio, the future maintenance would
likely be much heavier. Using rptun also simplifies many things.
Upon success, the master side from Linux may issue an example test:
root@icicle-kit-es-amp:/opt/microchip/amp/rpmsg-pingpong# ./rpmsg-pingpong
However, the rpmsg-pingpong.c (compiled on target with gcc), may need to
be modified as seen below to match the device id:
- char *rpmsg_dev="virtio0.rpmsg-amp-demo-channel.-1.0";
+ char *rpmsg_dev="virtio0.rpmsg-amp-demo-channel.-1.1024";
This work uses a separate linker script. Due to a bug yet unknown to date,
a small NuttX, when loaded by the vendor HSS bootloader, will cause the
Linux kernel to hang at boot. Thus, the binary size is increased with
a section 'filler_area' whose only purpose is to increase the image size
so that the Linux kernel will boot up.
Signed-off-by: Eero Nurkkala <eero.nurkkala@offcode.fi>
Implement a generic access rights modification procedure instead
of the procedures that only do one thing (enable/disable write)
to one section (text).
1. using armv6-m arm_irq();
2. simplify the interrupt number get process;
3. To improve the performance, move common exception code to ram_code.
Signed-off-by: wangbowen6 <wangbowen6@xiaomi.com>
fix warning:
common/arm_createstack.c: In function 'up_create_stack':
common/arm_createstack.c:154:11: warning: format '%d' expects type 'int', but argument 3 has type 'size_t'
Signed-off-by: wangbowen6 <wangbowen6@xiaomi.com>
Summary:
- Because a context switch issue still exists with FPU,
it should be enabled only if EXPERIMENTAL=y
Impact:
- None
Testing:
- Tested with ostest
Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
1. add pulse count support for pwm0;
2. add more detailed config for pwm;
3. pwm configuration and start process optimize;
4. tlsr82/Kconfig format;
Signed-off-by: wangbowen6 <wangbowen6@xiaomi.com>
