TononixOS/ubports_kernel_google_msm
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

powerpc: Hardcode popcnt instructions for old assemblers

Browse Source 
The popcnt instructions went into binutils relatively recently. As with a
number of other instructions, create macros and hardcode them.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Anton Blanchard
2010-12-07 19:58:17 +00:00
committed by Benjamin Herrenschmidt
parent b8c49def6d
commit b5f9b6665b
2 changed files with 15 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
arch/powerpc/lib/hweight_64.S
View File

@@ -28,7 +28,7 @@ BEGIN_FTR_SECTION
nop
nop
FTR_SECTION_ELSE
popcntb r3,r3
PPC_POPCNTB(r3,r3)
clrldi r3,r3,64-8
blr
ALT_FTR_SECTION_END_IFCLR(CPU_FTR_POPCNTB)
@@ -42,14 +42,14 @@ BEGIN_FTR_SECTION
nop
FTR_SECTION_ELSE
BEGIN_FTR_SECTION_NESTED(50)
popcntb r3,r3
PPC_POPCNTB(r3,r3)
srdi r4,r3,8
add r3,r4,r3
clrldi r3,r3,64-8
blr
FTR_SECTION_ELSE_NESTED(50)
clrlwi r3,r3,16
popcntw r3,r3
PPC_POPCNTW(r3,r3)
clrldi r3,r3,64-8
blr
ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_POPCNTD, 50)
@@ -66,7 +66,7 @@ BEGIN_FTR_SECTION
nop
FTR_SECTION_ELSE
BEGIN_FTR_SECTION_NESTED(51)
popcntb r3,r3
PPC_POPCNTB(r3,r3)
srdi r4,r3,16
add r3,r4,r3
srdi r4,r3,8
@@ -74,7 +74,7 @@ FTR_SECTION_ELSE
clrldi r3,r3,64-8
blr
FTR_SECTION_ELSE_NESTED(51)
popcntw r3,r3
PPC_POPCNTW(r3,r3)
clrldi r3,r3,64-8
blr
ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_POPCNTD, 51)
@@ -93,7 +93,7 @@ BEGIN_FTR_SECTION
nop
FTR_SECTION_ELSE
BEGIN_FTR_SECTION_NESTED(52)
popcntb r3,r3
PPC_POPCNTB(r3,r3)
srdi r4,r3,32
add r3,r4,r3
srdi r4,r3,16
@@ -103,7 +103,7 @@ FTR_SECTION_ELSE
clrldi r3,r3,64-8
blr
FTR_SECTION_ELSE_NESTED(52)
popcntd r3,r3
PPC_POPCNTD(r3,r3)
clrldi r3,r3,64-8
blr
ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_POPCNTD, 52)