diff options
Diffstat (limited to 'src/soc/amd/picasso')
| -rw-r--r-- | src/soc/amd/picasso/cpu.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/src/soc/amd/picasso/cpu.c b/src/soc/amd/picasso/cpu.c index f14ee49648..d3e80ebdea 100644 --- a/src/soc/amd/picasso/cpu.c +++ b/src/soc/amd/picasso/cpu.c @@ -1,24 +1,25 @@ /* SPDX-License-Identifier: GPL-2.0-only */ +#include <acpi/acpi.h> #include <amdblocks/cpu.h> #include <amdblocks/mca.h> #include <amdblocks/reset.h> #include <amdblocks/smm.h> #include <assert.h> +#include <console/console.h> +#include <cpu/amd/microcode.h> +#include <cpu/amd/mtrr.h> #include <cpu/cpu.h> #include <cpu/x86/mp.h> -#include <cpu/x86/mtrr.h> #include <cpu/x86/msr.h> +#include <cpu/x86/mtrr.h> #include <cpu/x86/smm.h> -#include <acpi/acpi.h> #include <device/device.h> #include <device/pci_ops.h> -#include <soc/pci_devs.h> #include <soc/cpu.h> -#include <soc/smi.h> #include <soc/iomap.h> -#include <console/console.h> -#include <cpu/amd/microcode.h> +#include <soc/pci_devs.h> +#include <soc/smi.h> #include <types.h> _Static_assert(CONFIG_MAX_CPUS == 8, "Do not override MAX_CPUS. To reduce the number of " @@ -35,7 +36,11 @@ _Static_assert(CONFIG_MAX_CPUS == 8, "Do not override MAX_CPUS. To reduce the nu */ static void pre_mp_init(void) { - x86_setup_mtrrs_with_detect_no_above_4gb(); + const msr_t syscfg = rdmsr(SYSCFG_MSR); + if (syscfg.lo & SYSCFG_MSR_TOM2WB) + x86_setup_mtrrs_with_detect_no_above_4gb(); + else + x86_setup_mtrrs_with_detect(); x86_mtrr_check(); } |