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authorRaul E Rangel <rrangel@chromium.org>2020-04-27 15:47:18 -0600
committerAaron Durbin <adurbin@chromium.org>2020-04-29 04:59:56 +0000
commit3ae3ff28286f1e752f01ccf9480414ff1d82615f (patch)
tree57579c2d77f8ee36fa5f4527617333faca91d0ed /src/include
parentfa52f31e114d7d15b49dca448832138c884138cd (diff)
downloadcoreboot-3ae3ff28286f1e752f01ccf9480414ff1d82615f.tar.xz
src/cpu/x86/mtrr/earlymtrr: Add clear_all_var_mtrr
Picasso does not define the state of variable MTRRs on boot. Add a helper function to clear all MTRRs. BUG=b:147042464 TEST=Build trembyle Signed-off-by: Raul E Rangel <rrangel@chromium.org> Change-Id: I21b887ce12849a95ddd8f1698028fb6bbfb4a7f6 Reviewed-on: https://review.coreboot.org/c/coreboot/+/40764 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/include')
-rw-r--r--src/include/cpu/x86/mtrr.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/include/cpu/x86/mtrr.h b/src/include/cpu/x86/mtrr.h
index 07db3cb606..50148ffd35 100644
--- a/src/include/cpu/x86/mtrr.h
+++ b/src/include/cpu/x86/mtrr.h
@@ -107,6 +107,7 @@ static inline int get_var_mtrr_count(void)
void set_var_mtrr(unsigned int reg, unsigned int base, unsigned int size,
unsigned int type);
int get_free_var_mtrr(void);
+void clear_all_var_mtrr(void);
asmlinkage void display_mtrrs(void);