Remove irrelevant content from the description of the emulation frame in
`mips_dsemul', referring to bare-metal configurations. Update the text,
reflecting the change made with commit ba3049ed4086 ("MIPS: Switch FPU
emulator trap to BREAK instruction."), where we switched from using an
address error exception on an unaligned access to the use of a BREAK 514
instruction causing a breakpoint exception instead.
Signed-off-by: Maciej W. Rozycki <macro@xxxxxxxxxx>
---
linux-mips-dsemul-comment.diff
Index: linux-sfr-sead/arch/mips/math-emu/dsemul.c
===================================================================
--- linux-sfr-sead.orig/arch/mips/math-emu/dsemul.c 2016-01-22 01:10:10.476810000 +0000
+++ linux-sfr-sead/arch/mips/math-emu/dsemul.c 2016-01-22 01:10:44.420413000 +0000
@@ -78,13 +78,8 @@ int mips_dsemul(struct pt_regs *regs, mi
* Algorithmics used a system call instruction, and
* borrowed that vector. MIPS/Linux version is a bit
* more heavyweight in the interests of portability and
- * multiprocessor support. For Linux we generate a
- * an unaligned access and force an address error exception.
- *
- * For embedded systems (stand-alone) we prefer to use a
- * non-existing CP1 instruction. This prevents us from emulating
- * branches, but gives us a cleaner interface to the exception
- * handler (single entry point).
+ * multiprocessor support. For Linux we use a BREAK 514
+ * instruction causing a breakpoint exception.
*/
break_math = BREAK_MATH(get_isa16_mode(regs->cp0_epc));
