From: Segher Boessenkool <segher@kernel.crashing.org>
To: Rohan McLure <rmclure@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org, npiggin@gmail.com
Subject: Re: [PATCH 1/6] powerpc: Add ZERO_GPRS macros for register clears
Date: Wed, 1 Jun 2022 11:00:23 -0500 [thread overview]
Message-ID: <20220601160023.GV25951@gate.crashing.org> (raw)
In-Reply-To: <20220601054850.250287-1-rmclure@linux.ibm.com>
Hi!
On Wed, Jun 01, 2022 at 03:48:45PM +1000, Rohan McLure wrote:
> +.macro BINOP_REGS op, rhs, start, end
> + .Lreg=\start
> + .rept (\end - \start + 1)
> + \op .Lreg, \rhs
> + .Lreg=.Lreg+1
> + .endr
> +.endm
This is for unary operations, not binary operations (there is only one
item on the RHS). You can in principle put a string "a,b" in the rhs
parameter, but in practice you need a or b to depend on the loop counter
as well, so even such trickiness won't do. Make the naming less
confusing, maybe? Or don't have an unused extra level of abstraction in
the first place :-)
Segher
next prev parent reply other threads:[~2022-06-01 16:02 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-01 5:48 [PATCH 1/6] powerpc: Add ZERO_GPRS macros for register clears Rohan McLure
2022-06-01 5:48 ` [PATCH 2/6] powerpc: Provide syscall wrapper Rohan McLure
2022-06-01 8:29 ` Christophe Leroy
2022-06-09 13:06 ` Christophe Leroy
2022-06-16 5:42 ` Rohan McLure
2022-06-16 7:20 ` Arnd Bergmann
2022-06-01 8:59 ` kernel test robot
2022-06-01 9:35 ` kernel test robot
2022-06-01 12:23 ` kernel test robot
2022-06-01 14:33 ` Christophe Leroy
2022-06-03 3:24 ` Rohan McLure
2022-06-03 7:09 ` Andrew Donnellan
2022-06-03 8:39 ` Christophe Leroy
2022-06-14 13:57 ` Andrew Donnellan
2022-06-03 9:04 ` Arnd Bergmann
2022-06-15 1:47 ` Rohan McLure
2022-06-15 10:13 ` Arnd Bergmann
2022-06-01 5:48 ` [PATCH 3/6] powerpc: Make syscalls save and restore gprs Rohan McLure
2022-06-01 8:33 ` Christophe Leroy
2022-06-01 5:48 ` [PATCH 4/6] powerpc: Fix comment, use clear and restore macros Rohan McLure
2022-06-01 5:48 ` [PATCH 5/6] powerpc: Move syscall handler prototypes to header Rohan McLure
2022-06-01 5:48 ` [PATCH 6/6] powerpc/64s: Clear gprs on interrupt routine entry Rohan McLure
2022-06-01 8:37 ` Christophe Leroy
2022-06-01 7:45 ` [PATCH 1/6] powerpc: Add ZERO_GPRS macros for register clears Christophe Leroy
2022-06-01 16:00 ` Segher Boessenkool [this message]
2022-06-10 3:32 ` Rohan McLure
2022-06-10 14:05 ` Segher Boessenkool
2022-06-11 8:42 ` Christophe Leroy
2022-06-13 18:48 ` Segher Boessenkool
2022-06-14 4:31 ` Michael Ellerman
2022-06-14 11:43 ` Segher Boessenkool
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