Re: [PATCH v3 1/2] powerpc: sstep: Fix load-store and update emulation

2021-02-03 Thread Sandipan Das
On 04/02/21 1:09 pm, Naveen N. Rao wrote: > [...] > > I'm afraid there is one more thing. scripts/checkpatch.pl reports: > > WARNING: 'an userspace' may be misspelled - perhaps 'a userspace'? > #52: > While an userspace program having an instruction word like > > > ERROR: swit

Re: [PATCH v3 1/2] powerpc: sstep: Fix load-store and update emulation

2021-02-03 Thread Naveen N. Rao
On 2021/02/04 12:44PM, Sandipan Das wrote: > The Power ISA says that the fixed-point load and update > instructions must neither use R0 for the base address (RA) > nor have the destination (RT) and the base address (RA) as > the same register. Similarly, for fixed-point stores and > floating-point

Re: [PATCH v3 1/2] powerpc: sstep: Fix load-store and update emulation

2021-02-03 Thread Sandipan Das
On 04/02/21 12:44 pm, Sandipan Das wrote: > The Power ISA says that the fixed-point load and update > instructions must neither use R0 for the base address (RA) > nor have the destination (RT) and the base address (RA) as > the same register. Similarly, for fixed-point stores and > floating-point

[PATCH v3 1/2] powerpc: sstep: Fix load-store and update emulation

2021-02-03 Thread Sandipan Das
The Power ISA says that the fixed-point load and update instructions must neither use R0 for the base address (RA) nor have the destination (RT) and the base address (RA) as the same register. Similarly, for fixed-point stores and floating-point loads and stores, the instruction is invalid when R0