-Original Message-
From: coreboot-boun...@coreboot.org [mailto:coreboot-boun...@coreboot.org] On
Behalf Of Peter Stuge
Sent: Thursday, October 21, 2010 03:50 AM
To: coreboot@coreboot.org
Subject: Re: [coreboot] [commit] r5976 - trunk/src/cpu/amd/car
]Scott Duplichan wrote:
]>
Scott Duplichan wrote:
> a straightforward and readable method of finding the base2 log at
> either assembly time or at run time.
bsf or maybe rather bsr could be used to do it pretty easily, but I
like having the compile time "perparsing" as a sort of sanity check.
I wouldn't want to get rid of t
On Wed, Oct 20, 2010 at 02:20:12PM -0500, Scott Duplichan wrote:
> But gas has no base 2 log function and could not figure out how to
> write a macro that returns a constant.
>
Sorry, ignore my previous post . I misread and answered without thinking.
It was about gas, not about log2. I'm surpri
On Wed, Oct 20, 2010 at 02:20:12PM -0500, Scott Duplichan wrote:
>movl $(log2(CONFIG_MMCONF_BUS_NUMBER) << 2), %eax
I have no idea of gas, but log2(x) for integer x > 0
is the position of the leftmost 1 in the binary representation
of x (position 0=rightmost).
int log2(unsigned int x) {
-Original Message-
From: coreboot-boun...@coreboot.org [mailto:coreboot-boun...@coreboot.org] On
Behalf Of Warren Turkal
Sent: Wednesday, October 20, 2010 03:20 AM
To: coreboot@coreboot.org
Subject: Re: [coreboot] [commit] r5976 - trunk/src/cpu/amd/car
]On Tue, Oct 19, 2010 at 2:08 PM
On Tue, Oct 19, 2010 at 2:08 PM, repository service wrote:
> + #if (CONFIG_MMCONF_BASE_ADDRESS > 0x)
> + #error "MMCONF_BASE_ADDRESS too big"
> + #elif (CONFIG_MMCONF_BASE_ADDRESS & 0xF)
> + #error "MMCONF_BASE_ADDRESS not 1MB aligned"
> + #endif
> + movl $0, %edx
>
Author: sduplichan
Date: Tue Oct 19 23:08:11 2010
New Revision: 5976
URL: https://tracker.coreboot.org/trac/coreboot/changeset/5976
Log:
For AMD family 10h processors, msr c0010058 is always programmed
for 256 buses, even if fewer are configured. This patch lets msr
c0010058 programming use the co
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