diff options
| author | Ronald G. Minnich <rminnich@gmail.com> | 2012-11-27 11:32:38 -0800 |
|---|---|---|
| committer | Ronald G. Minnich <rminnich@gmail.com> | 2012-11-28 07:57:17 +0100 |
| commit | 5079a0d32f2824445cf593dfbcb65598eaa97dee (patch) | |
| tree | 2e6edd336c00f1f3e4937410a9be9537553702be /src/cpu | |
| parent | acf443191bd035c26ee89c3ca56f065a5111901b (diff) | |
Remove assembly coded log2 function
As we move to supporting other systems we need to get rid of assembly
where we can. The log2 function in src/lib is identical to the assembly
one (tested for all 32-bit signed integers :-) and takes about 10 ns
to run as opposed to 5ns for the non-portable assembly version. While speed
is good, I think we can spare the 15 ns or so we add to boot time
by using the C version only.
Change-Id: Icafa565eae282c85fa5fc01b3bd1f110cd9aaa91
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/1928
Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/cpu')
| -rw-r--r-- | src/cpu/amd/geode_gx2/cpubug.c | 1 | ||||
| -rw-r--r-- | src/cpu/amd/geode_lx/cpubug.c | 1 | ||||
| -rw-r--r-- | src/cpu/amd/sc520/sc520.c | 1 |
3 files changed, 0 insertions, 3 deletions
diff --git a/src/cpu/amd/geode_gx2/cpubug.c b/src/cpu/amd/geode_gx2/cpubug.c index 473766c8a4..54d7e0e8d2 100644 --- a/src/cpu/amd/geode_gx2/cpubug.c +++ b/src/cpu/amd/geode_gx2/cpubug.c @@ -6,7 +6,6 @@ #include <device/pci_ids.h> #include <stdlib.h> #include <string.h> -#include <bitops.h> #include <cpu/amd/gx2def.h> #include <cpu/x86/msr.h> #include <cpu/x86/cache.h> diff --git a/src/cpu/amd/geode_lx/cpubug.c b/src/cpu/amd/geode_lx/cpubug.c index e3b6e511ee..5b1a7ace04 100644 --- a/src/cpu/amd/geode_lx/cpubug.c +++ b/src/cpu/amd/geode_lx/cpubug.c @@ -26,7 +26,6 @@ #include <device/device.h> #include <stdlib.h> #include <string.h> -#include <bitops.h> #include <cpu/x86/msr.h> #include <cpu/amd/lxdef.h> diff --git a/src/cpu/amd/sc520/sc520.c b/src/cpu/amd/sc520/sc520.c index 382eb877ba..6954f4425e 100644 --- a/src/cpu/amd/sc520/sc520.c +++ b/src/cpu/amd/sc520/sc520.c @@ -12,7 +12,6 @@ #include <device/hypertransport.h> #include <stdlib.h> #include <string.h> -#include <bitops.h> #include <delay.h> /* |