since xcpt always point to the stack after the below change:
commit 7b9978883c
Author: chao.an <anchao@xiaomi.com>
Date: Tue Mar 1 01:06:24 2022 +0800
arch/arm: optimize context switch speed
The current context save implementation saves registers of each task
to xcp context, which is unnecessary because most of the arm registers are
already saved in the task stack, this commit replace the xcp context with
stack context to improve context switching performance and reduce the tcb
space occupation of tcb instance.
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
The xxx_netinitialize is defined to a function only if
CONFIG_NET=y and CONFIG_NETDEV_LATEINIT=n. Otherwise it
is defined to an empty macro.
Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
restoring/saving coprocessor state.
These function don't use call8 or call12 and thus need to create just 16
bytes for the base save area, however they do use one variable so we
need a space for that. The `entry` instruction works in unit of 8 bytes
so we add whole 8 bytes for one variable.
Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>
Also fix an inconsistenct regarding the ESP32S3_NGPIOS macro. Although
correctly defining the number of available GPIOs in ESP32-S3, it was
erroneously being used for verifying the pin range.
Signed-off-by: Gustavo Henrique Nihei <gustavo.nihei@espressif.com>
USB EP0 reads data from the fifo but doesn't mark the read
done which adds significant delays. Fix this unnecessary
slowdown due to operation timeouts by finishing the read
properly.
Also add a missing function description to the function
mpfs_ep_set_fifo_size().
Signed-off-by: Eero Nurkkala <eero.nurkkala@offcode.fi>
Move the target specific memory map to a separate file so there is no
need to copy&paste the __xxram_start etc linker symbols to each file
that needs them.
Also add MMU flags for I/O and kernel areas, they will be needed
when the kernel runs with virtual addresses also.
option. This config was probably added in the early bring up of the
ESP32 chip. At that point the clock config was suppressed and we relied
on the bootloader. Now we can configure the clock from NuttX.
The option itself is still useful and can be used for any other
architecture or chip.
Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>
Some fields of mstatus were marked as Reserved Writes Preserve Values, Reads Ignore Values (WPRI),
so we must keep its origin value with addition flags.
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
In smp system riscv_cpu_boot run in idle task so there is a overlap with the origin coloration range and in used stack.
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
Fix EP0 stall and resume properly. EP0 wasn't clearly addressed
on stall / resume operations.
Also fix data reads that provide garbage for the first request.
It has always random data as it's completed prior to any read
operation.
Signed-off-by: Eero Nurkkala <eero.nurkkala@offcode.fi>
