diff options
Diffstat (limited to 'src/cpu/amd/family_10h-family_15h/ram_calc.c')
-rw-r--r-- | src/cpu/amd/family_10h-family_15h/ram_calc.c | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/src/cpu/amd/family_10h-family_15h/ram_calc.c b/src/cpu/amd/family_10h-family_15h/ram_calc.c deleted file mode 100644 index a1dc1f4ba6..0000000000 --- a/src/cpu/amd/family_10h-family_15h/ram_calc.c +++ /dev/null @@ -1,94 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <arch/cpu.h> -#include <cpu/x86/msr.h> -#include <cpu/amd/mtrr.h> - -#include <device/pci_ops.h> -#include <device/device.h> -#include <device/pci.h> - -#include <cbmem.h> - -#include "ram_calc.h" - -static inline uint8_t is_fam15h(void) -{ - uint8_t fam15h = 0; - uint32_t family; - - family = cpuid_eax(0x80000001); - family = ((family & 0xf00000) >> 16) | ((family & 0xf00) >> 8); - - if (family >= 0x6f) - /* Family 15h or later */ - fam15h = 1; - - return fam15h; -} - -uint64_t get_uma_memory_size(uint64_t topmem) -{ - uint64_t uma_size = 0; - if (CONFIG(GFXUMA)) { - /* refer to UMA Size Consideration in 780 BDG. */ - if (topmem >= 0x40000000) /* 1GB and above system memory */ - uma_size = 0x10000000; /* 256M recommended UMA */ - - else if (topmem >= 0x20000000) /* 512M - 1023M system memory */ - uma_size = 0x8000000; /* 128M recommended UMA */ - - else if (topmem >= 0x10000000) /* 256M - 511M system memory */ - uma_size = 0x4000000; /* 64M recommended UMA */ - } - - return uma_size; -} - -uint64_t get_cc6_memory_size() -{ - uint8_t enable_cc6; - - uint64_t cc6_size = 0; - - if (is_fam15h()) { - enable_cc6 = 0; - -#if ENV_PCI_SIMPLE_DEVICE - if (pci_read_config32(PCI_DEV(0, 0x18, 2), 0x118) & (0x1 << 18)) - enable_cc6 = 1; -#else - struct device *dct_dev = pcidev_on_root(0x18, 2); - if (pci_read_config32(dct_dev, 0x118) & (0x1 << 18)) - enable_cc6 = 1; -#endif - - if (enable_cc6) { - /* Preserve the maximum possible CC6 save region - * This needs to be kept in sync with - * amdfam10_domain_read_resources() in northbridge.c - */ - cc6_size = 0x8000000; - } - } - - return cc6_size; -} - -void *cbmem_top_chipset(void) -{ - uint32_t topmem = rdmsr(TOP_MEM).lo; - - return (void *) topmem - get_uma_memory_size(topmem) - get_cc6_memory_size(); -} |