The FPU register saving upon vfork entry was missing.
Also added macro that tells the actual size of an FPU reg, instead
of just having a coefficient for qfpu/no-qfpu.
IRQ_NSTACKS, ARCH_CPU_COUNT, CONFIG_SMP_NCPUS all relate to each
other. However, a bit of clean up can be done and everything can
be merged into SMP_NCPUS.
The MPFS bootloader case works also as it requires only 1 IRQ stack
for the hart that executes as bootloader.
- Add config "ARCH_USE_S_MODE" which controls whether the kernel
runs in M-mode or S-mode
- Add more MSTATUS and most of the SSTATUS register definitions
- Add more MIP flags for interrupt delegation
- Add handling of interrupts from S-mode
- Add handling of FPU from S-mode
- Add new context handling functions that are not dependent on the trap
handlers / ecall
NOTE: S-mode requires a companion SW (SBI) which is not yet implemented,
thus S-mode is not usable as is, yet.
Ken Pettit has submitted the ICLA and we can migrate the licenses
to Apache.
Sebastien Lorquet has submitted the ICLA and we can migrate the licenses
to Apache.
Gregory Nutt has submitted the SGA and we can migrate the licenses
to Apache.
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
* arch: risc-v: Remove unused typedef for irqstate_t
NOTE: irqstate_t is defined in arch/risc-v/include/types.h
* arch: risc-v: Add typedef irqstate_t for __LP64__
* arch: risc-v: Add SMP support to K210 (RV64GC) processor
* boards: maxi-bit: Update READMEs and add smp/defconfig
Author: Gregory Nutt <gnutt@nuttx.org>
Run all .c and .h modified in PR through nxstyle.
Author: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
feature k210 (#16)
* arch: risc-v: Add support for __LP64__ to types.h
* arch: risc-v: Add support for RV64GC to common files
* arch: risc-v: Add support for Kendryte K210 processor (RV64GC)
* boards: risk-v: Add support for Sipeed Maix Bit with K210
* tools: Add support for Kendryte K210 processor
HiFive1 with qemu
* arch: risc-v: Add include/.gitignore
* arch: risc-v: Add src/.gitignore
* arch: risc-v: Remove uncommon function prototypes in include/irq.h
* arch: risc-v: Add missing symbols and function prototypes in src/common/up_internal.h
* arch: risc-v: Add src/common/up_modifyreg32.c
* arch: risc-v: Enable include Make.dep in src/Makefile
* arch: risc-v: Fix stack coloration in common/up_createstack.c
* arch: risc-v: Add common/up_puts.c
* arch: risc-v: Add common/up_checkstack.c
* arch: rv32im: Move all logics from up_dumpstate.c to up_assert.c
This change is same as other architectures like arm/src/armv7-m
* arch: Select ARCH_HAVE_STACKCHECK for RISC-V in Kconfig
* arch: risc-v: Add SiFive fe310 processor
NOTE: Currently only tested with qemu
* boards: hifive1-revb: Add SiFive hifive1-revb board
NOTE: Currently only tested with qemu
* tools: Add fe310 processor to configure.sh
Approved-by: Alan Carvalho de Assis <acassis@gmail.com>
Approved-by: Gregory Nutt <gnutt@nuttx.org>
Squashed commit of the following:
Author: Gregory Nutt <gnutt@nuttx.org>
Completes review of configs/gapuino.
arch/risc-v/include/gap8/chip.h: Replace the moved chip.h header file with a dummy chip.h header file just to keep the system happy.
Move include/gap8/chip.h to src/gap8/chip.h. Internal details should not be exposed outside of arch/ and configs/. Review all headers files in src/gap8
Review of arch/risc-v/include.
Author: hhuysqt <hyq9606@126.com>
corrected author and email
Add app initialization, add signal support, cleanup irq context and configs
fix some warnings
gapuino initial port
GAP8 initial port
