[PATCH 1/3] crypto: powerpc - Use address generation helper for asm
Nicholas Piggin
npiggin at gmail.com
Fri Feb 3 22:38:56 AEDT 2023
Replace open-coded toc-relative address calculation with helper macros,
commit dab3b8f4fd09 ("powerpc/64: asm use consistent global variable
declaration and access") made similar conversions already but missed
this one.
This allows data addressing model to be changed more easily.
Signed-off-by: Nicholas Piggin <npiggin at gmail.com>
---
arch/powerpc/crypto/crc32-vpmsum_core.S | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/arch/powerpc/crypto/crc32-vpmsum_core.S b/arch/powerpc/crypto/crc32-vpmsum_core.S
index a16a717c809c..b0f87f595b26 100644
--- a/arch/powerpc/crypto/crc32-vpmsum_core.S
+++ b/arch/powerpc/crypto/crc32-vpmsum_core.S
@@ -113,9 +113,7 @@ FUNC_START(CRC_FUNCTION_NAME)
#endif
#ifdef BYTESWAP_DATA
- addis r3,r2,.byteswap_constant at toc@ha
- addi r3,r3,.byteswap_constant at toc@l
-
+ LOAD_REG_ADDR(r3, .byteswap_constant)
lvx byteswap,0,r3
addi r3,r3,16
#endif
@@ -150,8 +148,7 @@ FUNC_START(CRC_FUNCTION_NAME)
addi r7,r7,-1
mtctr r7
- addis r3,r2,.constants at toc@ha
- addi r3,r3,.constants at toc@l
+ LOAD_REG_ADDR(r3, .constants)
/* Find the start of our constants */
add r3,r3,r8
@@ -506,8 +503,7 @@ FUNC_START(CRC_FUNCTION_NAME)
.Lbarrett_reduction:
/* Barrett constants */
- addis r3,r2,.barrett_constants at toc@ha
- addi r3,r3,.barrett_constants at toc@l
+ LOAD_REG_ADDR(r3, .barrett_constants)
lvx const1,0,r3
lvx const2,off16,r3
@@ -610,8 +606,7 @@ FUNC_START(CRC_FUNCTION_NAME)
cmpdi r5,0
beq .Lzero
- addis r3,r2,.short_constants at toc@ha
- addi r3,r3,.short_constants at toc@l
+ LOAD_REG_ADDR(r3, .short_constants)
/* Calculate where in the constant table we need to start */
subfic r6,r5,256
--
2.37.2
More information about the Linuxppc-dev
mailing list