From 0f0fe100cb27770d615a70d5a78310ad47cb1abf Mon Sep 17 00:00:00 2001 From: Aaron Durbin Date: Mon, 1 Apr 2013 15:40:45 -0500 Subject: haswell: use new interface to disable rom caching The haswell code was using the old assumption of which MTRR was used for the ROM cache. Now that there is an API for doing this use it as the old assumption is no longer valid. Change-Id: I59ef897becfc9834d36d28840da6dc4f1145b0c7 Signed-off-by: Aaron Durbin Reviewed-on: http://review.coreboot.org/3007 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- src/cpu/intel/haswell/mp_init.c | 23 +---------------------- 1 file changed, 1 insertion(+), 22 deletions(-) (limited to 'src/cpu') diff --git a/src/cpu/intel/haswell/mp_init.c b/src/cpu/intel/haswell/mp_init.c index c8bd5c22be..cc1389247e 100644 --- a/src/cpu/intel/haswell/mp_init.c +++ b/src/cpu/intel/haswell/mp_init.c @@ -145,28 +145,7 @@ void release_aps_for_smm_relocation(int do_parallel) * ensure the caching is disabled for tha APs before going to sleep. */ static void cleanup_rom_caching(void) { -#if CONFIG_CACHE_ROM - msr_t msr; - unsigned int last_var_mtrr; - - msr = rdmsr(MTRRcap_MSR); - last_var_mtrr = (msr.lo & 0xff) - 1; - - /* Check if the MTRR is valid. */ - msr = rdmsr(MTRRphysMask_MSR(last_var_mtrr)); - if ((msr.lo & MTRRphysMaskValid) == 0) - return; - msr = rdmsr(MTRRphysBase_MSR(last_var_mtrr)); - /* Assum that if the MTRR is of write protected type, the MTRR is used - * to cache the ROM. */ - if ((msr.lo & MTRR_NUM_TYPES) == MTRR_TYPE_WRPROT) { - msr.lo = msr.hi = 0; - disable_cache(); - wrmsr(MTRRphysMask_MSR(last_var_mtrr), msr); - wrmsr(MTRRphysBase_MSR(last_var_mtrr), msr); - enable_cache(); - } -#endif + x86_mtrr_disable_rom_caching(); } /* By the time APs call ap_init() caching has been setup, and microcode has -- cgit v1.2.3