On Wed, Mar 10, 2021 at 02:05:51PM +0800, Bin Meng wrote: > On Wed, Mar 10, 2021 at 11:34 AM Dylan Jhong <dy...@andestech.com> wrote: > > > > Andes PLIC (Platform-Level Interrupt Controller) device provides an > > interrupt controller functionality based on Andes's PLIC specification. > > > > The Andes PLIC can handle either external interrupts (PLIC) > > or interprocessor interrupts (PLICSW). > > > > While Andes PLIC spec includes vector interrupt and interrupt preemption, > > we leave them as future items for now. > > > > Signed-off-by: Dylan Jhong <dy...@andestech.com> > > Signed-off-by: Ruinland ChuanTzu Tsai <ruinl...@andestech.com> > > --- > > hw/intc/Kconfig | 3 + > > hw/intc/andes_plic.c | 505 +++++++++++++++++++++++++++++++++++ > > hw/intc/meson.build | 1 + > > include/hw/intc/andes_plic.h | 130 +++++++++ > > 4 files changed, 639 insertions(+) > > create mode 100644 hw/intc/andes_plic.c > > create mode 100644 include/hw/intc/andes_plic.h > > Is the Andes PLIC spec public available? >
Please refer to Andes website http://www.andestech.com/en/products-solutions/product-documentation/ > What's the difference between Andres's implementation and the SiFive's? > Currently, the Andes's PLIC specification allows the following functions: Preemptive Priority Interrupt, Vectored Mode Interrupt Dispatching and Software-Generated Interrupt. In this patch, we only implement "Software-Generated Interrupt" feature. For the other PLIC features, we'll leave them as future items for now. > Regards, > Bin
