Re: [RFC 5/8] powerpc/slb: Add documentation to runtime patching of SLB encoding

2015-07-22 Thread Gabriel Paubert
On Wed, Jul 22, 2015 at 03:51:03PM +1000, Michael Ellerman wrote: On Tue, 2015-07-21 at 12:28 +0530, Anshuman Khandual wrote: From: khand...@linux.vnet.ibm.com khand...@linux.vnet.ibm.com This patch adds some documentation to 'patch_slb_encoding' function explaining about how it clears

Re: [RFC 5/8] powerpc/slb: Add documentation to runtime patching of SLB encoding

2015-07-22 Thread Michael Ellerman
On Wed, 2015-07-22 at 07:57 +0200, Gabriel Paubert wrote: On Wed, Jul 22, 2015 at 03:51:03PM +1000, Michael Ellerman wrote: On Tue, 2015-07-21 at 12:28 +0530, Anshuman Khandual wrote: From: khand...@linux.vnet.ibm.com khand...@linux.vnet.ibm.com This patch adds some documentation to

Re: [RFC 5/8] powerpc/slb: Add documentation to runtime patching of SLB encoding

2015-07-22 Thread Segher Boessenkool
On Wed, Jul 22, 2015 at 03:51:03PM +1000, Michael Ellerman wrote: How about: /* * This function patches either an li or a cmpldi instruction with * a new immediate value. This relies on the fact that both li * (which is actually ori) and cmpldi both take a 16-bit

Re: [RFC 5/8] powerpc/slb: Add documentation to runtime patching of SLB encoding

2015-07-21 Thread Michael Ellerman
On Tue, 2015-07-21 at 12:28 +0530, Anshuman Khandual wrote: From: khand...@linux.vnet.ibm.com khand...@linux.vnet.ibm.com This patch adds some documentation to 'patch_slb_encoding' function explaining about how it clears the existing immediate value in the given instruction and inserts a new