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-rw-r--r--src/include/cpu/x86/mtrr.h23
1 files changed, 0 insertions, 23 deletions
diff --git a/src/include/cpu/x86/mtrr.h b/src/include/cpu/x86/mtrr.h
index 9414687552..2a440723b8 100644
--- a/src/include/cpu/x86/mtrr.h
+++ b/src/include/cpu/x86/mtrr.h
@@ -52,10 +52,6 @@
* of the nature of the global MTRR enable flag. Therefore, all direct
* or indirect callers of enable_fixed_mtrr() should ensure that the
* variable MTRR MSRs do not contain bad ranges.
- * 3. If CONFIG_CACHE_ROM is selected an MTRR is allocated for enabling
- * the caching of the ROM. However, it is set to uncacheable (UC). It
- * is the responsibility of the caller to enable it by calling
- * x86_mtrr_enable_rom_caching().
*/
void x86_setup_mtrrs(void);
/*
@@ -71,25 +67,6 @@ void x86_setup_fixed_mtrrs(void);
/* Set up fixed MTRRs but do not enable them. */
void x86_setup_fixed_mtrrs_no_enable(void);
int x86_mtrr_check(void);
-/* ROM caching can be used after variable MTRRs are set up. Beware that
- * enabling CONFIG_CACHE_ROM will eat through quite a few MTRRs based on
- * one's IO hole size and WRCOMB resources. Be sure to check the console
- * log when enabling CONFIG_CACHE_ROM or adding WRCOMB resources. Beware that
- * on CPUs with core-scoped MTRR registers such as hyperthreaded CPUs the
- * rom caching will be disabled if all threads run the MTRR code. Therefore,
- * one needs to call x86_mtrr_enable_rom_caching() after all threads of the
- * same core have run the MTRR code. */
-#if CONFIG_CACHE_ROM
-void x86_mtrr_enable_rom_caching(void);
-void x86_mtrr_disable_rom_caching(void);
-/* Return the variable range MTRR index of the ROM cache. */
-long x86_mtrr_rom_cache_var_index(void);
-#else
-static inline void x86_mtrr_enable_rom_caching(void) {}
-static inline void x86_mtrr_disable_rom_caching(void) {}
-static inline long x86_mtrr_rom_cache_var_index(void) { return -1; }
-#endif /* CONFIG_CACHE_ROM */
-
#endif
#if !defined(__ASSEMBLER__) && defined(__PRE_RAM__) && !defined(__ROMCC__)