The first time interrupt nesting occurs between REE and TEE,
CURRENT_REGS needs to be set.
If TEE nesting REE breaks, then EXC_RETURN.S=0,EXC_RETURN.ES=1;
Conversely, EXC_RETURN.S=1,EXC_RETURN.ES=0;
Interrupt nesting between TEE and REE can be determined based
on the S and ES bits of EXC_RETURN.
Only once nesting between TEE and REE is supported, and cyclic
nesting between TEE and REE is not supported.
Signed-off-by: wangming9 <wangming9@xiaomi.com>
1、The process stack supports interrupt nesting, Execute in MSP;
2、The interrupt stack supports interrupt nesting;
The thread mode use PSP, and the handle mode use MSP;
3、Adjust arm_doirq、exception_common implementation to meet interrupt nesting
4、Adjust the conditions for returning MSP and PSP;
5、remove setintstack;
Signed-off-by: wangming9 <wangming9@xiaomi.com>
1、The process stack supports interrupt nesting, Execute in MSP;
2、The interrupt stack supports interrupt nesting;
The thread mode use PSP, and the handle mode use MSP;
3、Adjust arm_doirq、exception_common implementation to meet interrupt nesting
4、Adjust the conditions for returning MSP and PSP;
5、remove setintstack;
Signed-off-by: wangming9 <wangming9@xiaomi.com>
1、The process stack supports interrupt nesting, Execute in MSP;
2、The interrupt stack supports interrupt nesting;
The thread mode use PSP, and the handle mode use MSP;
3、Adjust arm_doirq、exception_common implementation to meet interrupt nesting
4、Adjust the conditions for returning MSP and PSP;
5、remove setintstack，add arm_initialize_stack;
Signed-off-by: wangming9 <wangming9@xiaomi.com>
VELAPLATFO-12536
This provides the initial hooks for Flattened Device Tree support
with QEMU RV. It also provides a new procfs file that exposes the
fdt to userspace much like the /sys/firmware/fdt endpoint in Linux.
See https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-firmware-ofw
Nodes in the fdt are not yet usable by the OS.
Signed-off-by: Brennan Ashton <bashton@brennanashton.com>
Signed-off-by: liaoao <liaoao@xiaomi.com>
For TEE & REE, securefault & busfault are not banked, so the faults can
only forword to TEE/REE.
But how to crash dump the other core which not handled faults ?
Here we provide a way to resolve this problem:
1. Set the securefault & busfault to TEE
2. busfault happend from TEE, then directly dump TEE
3. busfault happend from REE, then generate nonsecurefault
4. Back to REE, and dump
Signed-off-by: ligd <liguiding1@xiaomi.com>
We can use the driver in nuttx to download
files with debugger
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
Signed-off-by: chao an <anchao@xiaomi.com>
FlexCAN before used interrupts to process incoming frames.
This patch adds a HPWORK workqueue to process incoming frames in the workqueue
context instead. Also renamed mbi to txmb for better readability.
This PR adds support for the StarFive JH7110 RISC-V SoC. This will be used by the upcoming port of NuttX for PINE64 Star64 SBC. [The source files are explained in the articles here](https://github.com/lupyuen/nuttx-star64)
Modified Files in arch/risc-v:
Kconfig: Added ARCH_CHIP_JH7110 for JH7110 SoC
New Files in arch/risc-v:
include/jh7110/chip.h: JH7110 Definitions
include/jh7110/irq.h: Support 127 External Interrupts
src/jh7110/chip.h: Interrupt Stack Macro
src/jh7110/jh7110_allocateheap.c: Kernel Heap
src/jh7110/jh7110_head.S: Linux Header and Boot Code
src/jh7110/jh7110_irq.c: Configure Interrupts
src/jh7110/jh7110_irq_dispatch.c: Dispatch Interrupts
src/jh7110/jh7110_memorymap.h: Memory Map
src/jh7110/jh7110_mm_init.c, jh7110_mm_init.h: Memory Mgmt
src/jh7110/jh7110_pgalloc.c: Page Allocator
src/jh7110/jh7110_start.c: Startup Code
src/jh7110/jh7110_timerisr.c: Timer Interrupt
src/jh7110/hardware/jh7110_memorymap.h: PLIC Base Address
src/jh7110/hardware/jh7110_plic.h: PLIC Register Addresses
src/jh7110/Kconfig: JH7110 Config
src/jh7110/Make.defs: Makefile
* Error handling for abnormal interrupts and DMA errors is now
enabled for all builds, regardless of any DEBUG configuration.
* Error handling resets the MAC for the specific errors that
may halt the Ethernet operation, instead of everything as it
was before.
The window opens when the fb opens and closes when the fb closes.
test step: run fb demo, 1. ./nuttx 2. fb
Signed-off-by: jianglianfang <jianglianfang@xiaomi.com>
- Added Wi-Fi related symbols to the kernel-space linker;
- Allocate more RAM to the kernel (to be useb by the Wi-Fi driver).
- Create a specific defconfig.
Instead of setting kernel/user space instruction and data ROM as
hard-coded values on linker, set them according to the max size
of the kernel image set by CONFIG_ESP32S3_KERNEL_IMAGE_SIZE. This
is done by making KIROM, UIROM, KDROM and UDROM dependent on the
kernel size value. Also, override CONFIG_NUTTX_USERSPACE config
according to CONFIG_ESP32S3_KERNEL_IMAGE_SIZE by using a custom
PREBUILD definition.
when executing ioctl AUDIOIOC_GETBUFFERINFO,the priv->pcm is still NULL,
so it will return -ENXIO,we can remove this check at the start of ioctl
and add in the case where it is used.
Signed-off-by: shipei <shipei@xiaomi.com>
When supporting high-priority interrupts, updating the
g_running_tasks within a high-priority interrupt may be
cause problems. The g_running_tasks should only be updated
when it is determined that a task context switch has occurred.
Signed-off-by: zhangyuan21 <zhangyuan21@xiaomi.com>
stack_t used by sigaltstack, make it compile sucess in sim.
Signed-off-by: yangyalei <yangyalei@xiaomi.com>
ltp: fix compile errors
Signed-off-by: yangyalei <yangyalei@xiaomi.com>
Instead of clearing the fields individually, just wipe the whole register.
This can be done because flags and rm are just parts of the fcsr.
31 8 5 0
+--------------+--------+-----------+
| | | |
| RESERVED | FRM | FSTATUS |
| | | |
+--------------+--------+-----------+
FCSR
