Timothy Pearson (tpearson@raptorengineeringinc.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/8488
-gerrit
commit 13d74267d7335b9dae160266e7567f916d6dba75 Author: Timothy Pearson tpearson@raptorengineeringinc.com Date: Wed Feb 18 18:26:31 2015 -0600
cpu/amd/model_10xxx: Add support for early cbmem
Change-Id: I80622b1998ad77c8e2f5ae94bf28bdb704a41eb9 Signed-off-by: Timothy Pearson tpearson@raptorengineeringinc.com --- src/cpu/amd/model_10xxx/Makefile.inc | 2 + src/cpu/amd/model_10xxx/ram_calc.c | 59 ++++++++++++++++++++++++++++++ src/cpu/amd/model_10xxx/ram_calc.h | 25 +++++++++++++ src/northbridge/amd/amdfam10/Kconfig | 1 - src/northbridge/amd/amdfam10/northbridge.c | 20 +--------- src/southbridge/amd/sb700/early_setup.c | 5 +++ src/southbridge/amd/sb700/lpc.c | 5 +++ src/southbridge/amd/sb800/early_setup.c | 5 +++ 8 files changed, 103 insertions(+), 19 deletions(-)
diff --git a/src/cpu/amd/model_10xxx/Makefile.inc b/src/cpu/amd/model_10xxx/Makefile.inc index ba12dcd..c17e66c 100644 --- a/src/cpu/amd/model_10xxx/Makefile.inc +++ b/src/cpu/amd/model_10xxx/Makefile.inc @@ -3,6 +3,8 @@ ramstage-y += model_10xxx_init.c ramstage-y += processor_name.c
romstage-y += update_microcode.c +romstage-y += ram_calc.c +ramstage-y += ram_calc.c ramstage-y += monotonic_timer.c ramstage-$(CONFIG_HAVE_ACPI_TABLES) += powernow_acpi.c
diff --git a/src/cpu/amd/model_10xxx/ram_calc.c b/src/cpu/amd/model_10xxx/ram_calc.c new file mode 100644 index 0000000..1b1d2c6 --- /dev/null +++ b/src/cpu/amd/model_10xxx/ram_calc.c @@ -0,0 +1,59 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2015 Timothy Pearson tpearson@raptorengineeringinc.com, Raptor Engineering + * Copyright (C) 2007 Advanced Micro Devices, Inc. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <cpu/cpu.h> +#include <cpu/x86/msr.h> +#include <cpu/amd/mtrr.h> + +#include <cbmem.h> + +#include "ram_calc.h" + +uint64_t get_uma_memory_size(uint64_t topmem) +{ + uint64_t uma_size = 0; + if (IS_ENABLED(CONFIG_GFXUMA)) { + /* refer to UMA Size Consideration in 780 BDG. */ + switch (topmem) { + case 0x10000000: /* 256M system memory */ + uma_size = 0x4000000; /* 64M recommended UMA */ + break; + + case 0x20000000: /* 512M system memory */ + uma_size = 0x8000000; /* 128M recommended UMA */ + break; + + default: /* 1GB and above system memory */ + uma_size = 0x10000000; /* 256M recommended UMA */ + break; + } + } + + return uma_size; +} + +void *cbmem_top(void) +{ + uint32_t topmem = (uint32_t) rdmsr(TOP_MEM).lo; + + topmem = topmem - get_uma_memory_size(topmem); + + return (void *) topmem; +} diff --git a/src/cpu/amd/model_10xxx/ram_calc.h b/src/cpu/amd/model_10xxx/ram_calc.h new file mode 100644 index 0000000..7ece338 --- /dev/null +++ b/src/cpu/amd/model_10xxx/ram_calc.h @@ -0,0 +1,25 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2015 Timothy Pearson tpearson@raptorengineeringinc.com, Raptor Engineering + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef _AMD_MODEL_10XXX_MEM_CALC_H_ +#define _AMD_MODEL_10XXX_MEM_CALC_H_ + +uint64_t get_uma_memory_size(uint64_t topmem); + +#endif diff --git a/src/northbridge/amd/amdfam10/Kconfig b/src/northbridge/amd/amdfam10/Kconfig index 8e1c4f8..96d2904 100644 --- a/src/northbridge/amd/amdfam10/Kconfig +++ b/src/northbridge/amd/amdfam10/Kconfig @@ -26,7 +26,6 @@ config NORTHBRIDGE_AMD_AMDFAM10 select HYPERTRANSPORT_PLUGIN_SUPPORT select MMCONF_SUPPORT select PER_DEVICE_ACPI_TABLES - select LATE_CBMEM_INIT
if NORTHBRIDGE_AMD_AMDFAM10 config AGP_APERTURE_SIZE diff --git a/src/northbridge/amd/amdfam10/northbridge.c b/src/northbridge/amd/amdfam10/northbridge.c index f28c726..60296dd 100644 --- a/src/northbridge/amd/amdfam10/northbridge.c +++ b/src/northbridge/amd/amdfam10/northbridge.c @@ -32,6 +32,7 @@
#include <cpu/x86/lapic.h> #include <cpu/amd/mtrr.h> +#include <cpu/amd/model_10xxx/ram_calc.h>
#if CONFIG_LOGICAL_CPUS #include <cpu/amd/multicore.h> @@ -828,21 +829,7 @@ static void setup_uma_memory(void) { #if CONFIG_GFXUMA uint32_t topmem = (uint32_t) bsp_topmem(); - /* refer to UMA Size Consideration in 780 BDG. */ - switch (topmem) { - case 0x10000000: /* 256M system memory */ - uma_memory_size = 0x4000000; /* 64M recommended UMA */ - break; - - case 0x20000000: /* 512M system memory */ - uma_memory_size = 0x8000000; /* 128M recommended UMA */ - break; - - default: /* 1GB and above system memory */ - uma_memory_size = 0x10000000; /* 256M recommended UMA */ - break; - } - + uma_memory_size = get_uma_memory_size(topmem); uma_memory_base = topmem - uma_memory_size; /* TOP_MEM1 */ printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n", __func__, uma_memory_size, uma_memory_base); @@ -1052,10 +1039,7 @@ static void amdfam10_domain_set_resources(device_t dev) }
#if CONFIG_GFXUMA - set_top_of_ram(uma_memory_base); uma_resource(dev, 7, uma_memory_base >> 10, uma_memory_size >> 10); -#else - set_top_of_ram(ramtop); #endif
for(link = dev->link_list; link; link = link->next) { diff --git a/src/southbridge/amd/sb700/early_setup.c b/src/southbridge/amd/sb700/early_setup.c index 94f33b7..0c37840 100644 --- a/src/southbridge/amd/sb700/early_setup.c +++ b/src/southbridge/amd/sb700/early_setup.c @@ -728,6 +728,10 @@ int acpi_get_sleep_type(void) return ((tmp & (7 << 10)) >> 10); }
+/* FIXME + * Remove this block when all processors support early CBMEM init + */ +#if CONFIG_LATE_CBMEM_INIT unsigned long get_top_of_ram(void) { uint32_t xdata = 0; @@ -742,5 +746,6 @@ unsigned long get_top_of_ram(void) } return (unsigned long) xdata; } +#endif
#endif diff --git a/src/southbridge/amd/sb700/lpc.c b/src/southbridge/amd/sb700/lpc.c index 658e954..a5f11a6 100644 --- a/src/southbridge/amd/sb700/lpc.c +++ b/src/southbridge/amd/sb700/lpc.c @@ -88,6 +88,10 @@ int acpi_get_sleep_type(void) return ((tmp & (7 << 10)) >> 10); }
+/* FIXME + * Remove this block when all processors support early CBMEM init + */ +#if CONFIG_LATE_CBMEM_INIT void backup_top_of_ram(uint64_t ramtop) { u32 dword = (u32) ramtop; @@ -98,6 +102,7 @@ void backup_top_of_ram(uint64_t ramtop) nvram_pos++; } } +#endif
static void sb700_lpc_read_resources(device_t dev) { diff --git a/src/southbridge/amd/sb800/early_setup.c b/src/southbridge/amd/sb800/early_setup.c index 69bc3bd..300b54e 100644 --- a/src/southbridge/amd/sb800/early_setup.c +++ b/src/southbridge/amd/sb800/early_setup.c @@ -673,6 +673,10 @@ int acpi_get_sleep_type(void) return ((tmp & (7 << 10)) >> 10); }
+/* FIXME + * Remove this block when all processors support early CBMEM init + */ +#if CONFIG_LATE_CBMEM_INIT unsigned long get_top_of_ram(void) { uint32_t xdata = 0; @@ -687,5 +691,6 @@ unsigned long get_top_of_ram(void) } return (unsigned long) xdata; } +#endif
#endif