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| author | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2015-06-18 01:14:01 -0700 |
|---|---|---|
| committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2015-07-21 23:36:06 +0200 |
| commit | 67b9430b367a9f9a884043f14365a55b7ef3c45c (patch) | |
| tree | 950a1b04563c5471b256a95f10cdc5b9e70628b3 /src/cpu | |
| parent | 29e6548ac2b720bdccf8367d2a663f128351df38 (diff) | |
cpu: port amd/agesa to 64bit
Change-Id: I8644b04f4b57db5fc95ec155d3f78d53c63c9831
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Signed-off-by: Scott Duplichan <scott@notabs.org>
Reviewed-on: http://review.coreboot.org/10579
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Diffstat (limited to 'src/cpu')
| -rw-r--r-- | src/cpu/amd/agesa/cache_as_ram.inc | 66 | ||||
| -rw-r--r-- | src/cpu/amd/agesa/s3_resume.c | 7 |
2 files changed, 71 insertions, 2 deletions
diff --git a/src/cpu/amd/agesa/cache_as_ram.inc b/src/cpu/amd/agesa/cache_as_ram.inc index a8dbee8573..b19f03b0a6 100644 --- a/src/cpu/amd/agesa/cache_as_ram.inc +++ b/src/cpu/amd/agesa/cache_as_ram.inc @@ -64,9 +64,67 @@ cache_as_ram_setup: cvtsi2sd %ebx, %xmm1 post_code(0xa1) - AMD_ENABLE_STACK - post_code(0xa1) +#ifdef __x86_64__ + /* switch to 64 bit long mode */ + .intel_syntax noprefix + + mov ecx, esi + add ecx, 0 # core number + xor eax, eax + lea edi, [ecx+0x1000+0x23] + mov dword ptr [ecx+0], edi + mov dword ptr [ecx+4], eax + + lea edi, [ecx+0x1000] + mov dword ptr [edi+0x00], 0x000000e3 + mov dword ptr [edi+0x04], eax + mov dword ptr [edi+0x08], 0x400000e3 + mov dword ptr [edi+0x0c], eax + mov dword ptr [edi+0x10], 0x800000e3 + mov dword ptr [edi+0x14], eax + mov dword ptr [edi+0x18], 0xc00000e3 + mov dword ptr [edi+0x1c], eax + + # load rom based identity mapped page tables + mov eax, ecx + mov cr3,eax + + # enable PAE + mov eax, cr4 + bts eax, 5 + mov cr4, eax + + # enable long mode + mov ecx, 0xC0000080 + rdmsr + bts eax, 8 + wrmsr + + # enable paging + mov eax, cr0 + bts eax, 31 + mov cr0, eax + + # use call far to switch to 64-bit code segment + jmp 0x18,.+7 + + /* Pass the BIST result */ + cvtsd2si esi, xmm1 + + /* Pass the cpu_init_detected */ + cvtsd2si edi, xmm0 + + /* align the stack */ + and esp, 0xFFFFFFF0 + + .code64 + call cache_as_ram_main + .code32 + + .att_syntax prefix +#else + AMD_ENABLE_STACK /* Restore the BIST result */ cvtsd2si %xmm0, %edx @@ -77,6 +135,7 @@ cache_as_ram_setup: pushl %ebx /* init detected */ pushl %edx /* bist */ call cache_as_ram_main +#endif /* Should never see this postcode */ post_code(0xaf) @@ -108,3 +167,6 @@ disable_cache_as_ram: ret cache_as_ram_setup_out: +#ifdef __x86_64__ +.code64 +#endif diff --git a/src/cpu/amd/agesa/s3_resume.c b/src/cpu/amd/agesa/s3_resume.c index 5e07d7a405..98671f47d5 100644 --- a/src/cpu/amd/agesa/s3_resume.c +++ b/src/cpu/amd/agesa/s3_resume.c @@ -56,10 +56,17 @@ static void move_stack_high_mem(void) memcpy(high_stack, (void *)BSP_STACK_BASE_ADDR, HIGH_ROMSTAGE_STACK_SIZE); /* TODO: We only switch stack on BSP. */ +#ifdef __x86_64__ + __asm__ + volatile ("add %0, %%rsp; add %0, %%rbp; invd"::"g" + (high_stack - BSP_STACK_BASE_ADDR) + :); +#else __asm__ volatile ("add %0, %%esp; add %0, %%ebp; invd"::"g" (high_stack - BSP_STACK_BASE_ADDR) :); +#endif } static void set_resume_cache(void) |