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authorArthur Heymans <arthur@aheymans.xyz>2019-11-25 19:58:36 +0100
committerPatrick Georgi <pgeorgi@google.com>2020-08-17 06:22:41 +0000
commita6a2f9372c492c2e6ca4404b372054b1fd82e1ee (patch)
tree809849d881e1ec1006ed033f54edfa7eba2cc44c /src/include
parent65605276a4cd08fd2e38f87cd80e3362265f9091 (diff)
downloadcoreboot-a6a2f9372c492c2e6ca4404b372054b1fd82e1ee.tar.xz
arch/x86/exit_car.S: Make sure _cbmem_top_ptr hits dram
INVD is called below so if postcar is running in a cached environment it needs to happen. NOTE: postcar cannot execute in a cached environment if clflush is not supported! Change-Id: I37681ee1f1d2ae5f9dd824b5baf7b23b2883b1dc Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37212 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Diffstat (limited to 'src/include')
-rw-r--r--src/include/cpu/x86/cache.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/include/cpu/x86/cache.h b/src/include/cpu/x86/cache.h
index 01b202eb1a..62341104a4 100644
--- a/src/include/cpu/x86/cache.h
+++ b/src/include/cpu/x86/cache.h
@@ -8,6 +8,8 @@
#define CR0_CacheDisable (CR0_CD)
#define CR0_NoWriteThrough (CR0_NW)
+#define CPUID_FEATURE_CLFLUSH_BIT 19
+
#if !defined(__ASSEMBLER__)
static inline void wbinvd(void)