Am Montag, 27. März 2023, 18:49:28 CEST schrieb Andy Chiu: > From: Greentime Hu <greentime.hu@xxxxxxxxxx> > > Add vector state context struct to be added later in thread_struct. And > prepare low-level helper functions to save/restore vector contexts. > > This include Vector Regfile and CSRs holding dynamic configuration state > (vstart, vl, vtype, vcsr). The Vec Register width could be implementation > defined, but same for all processes, so that is saved separately. > > This is not yet wired into final thread_struct - will be done when > __switch_to actually starts doing this in later patches. > > Given the variable (and potentially large) size of regfile, they are > saved in dynamically allocated memory, pointed to by datap pointer in > __riscv_v_ext_state. > > Co-developed-by: Vincent Chen <vincent.chen@xxxxxxxxxx> > Signed-off-by: Vincent Chen <vincent.chen@xxxxxxxxxx> > Signed-off-by: Greentime Hu <greentime.hu@xxxxxxxxxx> > Signed-off-by: Vineet Gupta <vineetg@xxxxxxxxxxxx> > Signed-off-by: Andy Chiu <andy.chiu@xxxxxxxxxx> > Acked-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx> > Reviewed-by: Guo Ren <guoren@xxxxxxxxxx> > Reviewed-by: Björn Töpel <bjorn@xxxxxxxxxxxx> Reviewed-by: Heiko Stuebner <heiko.stuebner@xxxxxxxx> Tested-by: Heiko Stuebner <heiko.stuebner@xxxxxxxx>
