This is needed to support Truetype fonts. In any case, the compiler expects SSE to be available in 64-bit mode. Enable it.
Signed-off-by: Simon Glass sjg@chromium.org Suggested-by: Bin Meng bmeng.cn@gmail.com ---
(no changes since v1)
arch/x86/config.mk | 1 - arch/x86/cpu/x86_64/cpu.c | 11 +++++++++++ 2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/arch/x86/config.mk b/arch/x86/config.mk index 26ec1af2f0b0..b038b132985a 100644 --- a/arch/x86/config.mk +++ b/arch/x86/config.mk @@ -27,7 +27,6 @@ ifeq ($(IS_32BIT),y) PLATFORM_CPPFLAGS += -march=i386 -m32 else PLATFORM_CPPFLAGS += $(if $(CONFIG_SPL_BUILD),,-fpic) -fno-common -march=core2 -m64 -PLATFORM_CPPFLAGS += -mno-mmx -mno-sse endif
PLATFORM_RELFLAGS += -fdata-sections -ffunction-sections -fvisibility=hidden diff --git a/arch/x86/cpu/x86_64/cpu.c b/arch/x86/cpu/x86_64/cpu.c index 2647bff891f8..54dc31bf6b71 100644 --- a/arch/x86/cpu/x86_64/cpu.c +++ b/arch/x86/cpu/x86_64/cpu.c @@ -10,6 +10,7 @@ #include <init.h> #include <asm/cpu.h> #include <asm/global_data.h> +#include <asm/processor-flags.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -39,11 +40,21 @@ int x86_mp_init(void) return 0; }
+/* enable SSE features */ +static void setup_cpu_features(void) +{ + asm ("mov %%cr4, %%rax\n" \ + "or %0, %%rax\n" \ + "mov %%rax, %%cr4\n" \ + : : "i" (X86_CR4_OSFXSR | X86_CR4_OSXMMEXCPT) : "eax"); +} + int x86_cpu_reinit_f(void) { /* set the vendor to Intel so that native_calibrate_tsc() works */ gd->arch.x86_vendor = X86_VENDOR_INTEL; gd->arch.has_mtrr = true; + setup_cpu_features();
return 0; }