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Don't need to round since values are N-1.

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This commit is contained in:
matt 2014-02-24 00:49:53 +00:00
parent e8149d13fe
commit cab94bd246
1 changed files with 0 additions and 6 deletions
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6
sys/arch/arm/arm/cpufunc_asm_armv7.S
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@ -278,8 +278,6 @@ ENTRY_NP(armv7_icache_inv_all)
ubfx r2, r0, #13, #15 @ get num sets - 1 from CCSIDR ubfx r2, r0, #13, #15 @ get num sets - 1 from CCSIDR
ubfx r3, r0, #3, #10 @ get numways - 1 from CCSIDR ubfx r3, r0, #3, #10 @ get numways - 1 from CCSIDR
lsl r3, r3, #1 @ double
sub r3, r3, #1 @ subtract one (now rounded up)
clz r1, r3 @ number of bits to MSB of way clz r1, r3 @ number of bits to MSB of way
lsl r3, r3, r1 @ shift into position lsl r3, r3, r1 @ shift into position
mov ip, #1 @ mov ip, #1 @
@ -338,8 +336,6 @@ ENTRY_NP(armv7_dcache_inv_all)
lsl r1, r1, ip @ r1 = set decr lsl r1, r1, ip @ r1 = set decr
ubfx ip, r0, #3, #10 @ get numways - 1 from [to be discarded] CCSIDR ubfx ip, r0, #3, #10 @ get numways - 1 from [to be discarded] CCSIDR
lsl ip, ip, #1 @ double
sub ip, ip, #1 @ subtract one (now rounded up)
clz r2, ip @ number of bits to MSB of way clz r2, ip @ number of bits to MSB of way
lsl ip, ip, r2 @ shift by that into way position lsl ip, ip, r2 @ shift by that into way position
mov r0, #1 @ mov r0, #1 @
@ -403,8 +399,6 @@ ENTRY_NP(armv7_dcache_wbinv_all)
lsl r1, r1, ip @ r1 = set decr lsl r1, r1, ip @ r1 = set decr
ubfx ip, r0, #3, #10 @ get numways - 1 from [to be discarded] CCSIDR ubfx ip, r0, #3, #10 @ get numways - 1 from [to be discarded] CCSIDR
lsl ip, ip, #1 @ double
sub ip, ip, #1 @ subtract one (now rounded up)
clz r2, ip @ number of bits to MSB of way clz r2, ip @ number of bits to MSB of way
lsl ip, ip, r2 @ shift by that into way position lsl ip, ip, r2 @ shift by that into way position
mov r0, #1 @ mov r0, #1 @