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x86, amd-nb: Cleanup AMD northbridge caching code

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Support more than just the "Misc Control" part of the northbridges.
Support more flags by turning "gart_supported" into a single bit flag
that is stored in a flags member. Clean up related code by using a set
of functions (amd_nb_num(), amd_nb_has_feature() and node_to_amd_nb())
instead of accessing the NB data structures directly. Reorder the
initialization code and put the GART flush words caching in a separate
function.

Signed-off-by: Hans Rosenfeld <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
This commit is contained in:
Hans Rosenfeld 2010-10-29 17:14:31 +02:00 • committed by Borislav Petkov
commit 9653a5c76c
6 changed files with 118 additions and 88 deletions
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4
drivers/edac/amd64_edac.c
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@ -2917,7 +2917,7 @@ static int __init amd64_edac_init(void)
opstate_init();
if (cache_amd_northbridges() < 0)
if (amd_cache_northbridges() < 0)
goto err_ret;
msrs = msrs_alloc();
@ -2934,7 +2934,7 @@ static int __init amd64_edac_init(void)
* to finish initialization of the MC instances.
*/
err = -ENODEV;
for (nb = 0; nb < amd_northbridges.num; nb++) {
for (nb = 0; nb < amd_nb_num(); nb++) {
if (!pvt_lookup[nb])
continue;