Move setup_uma_memory() to Agesa Family12 northbridge
Change-Id: Ieaf284c207f0cd4b2f6b804c52f949c16435d823 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/1207 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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@ -57,48 +57,7 @@ void set_pcie_dereset(void)
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static void torpedo_enable(device_t dev)
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{
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printk(BIOS_INFO, "Mainboard " CONFIG_MAINBOARD_PART_NUMBER " Enable. dev=0x%p\n", dev);
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#if CONFIG_GFXUMA
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msr_t msr, msr2;
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uint32_t sys_mem;
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/* TOP_MEM: the top of DRAM below 4G */
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msr = rdmsr(TOP_MEM);
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printk
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(BIOS_INFO, "%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n",
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__func__, msr.lo, msr.hi);
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/* TOP_MEM2: the top of DRAM above 4G */
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msr2 = rdmsr(TOP_MEM2);
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printk
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(BIOS_INFO, "%s, TOP MEM2: msr2.lo = 0x%08x, msr2.hi = 0x%08x\n",
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__func__, msr2.lo, msr2.hi);
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/* refer to UMA Size Consideration in Family12h BKDG. */
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/* Please reference MemNGetUmaSizeLN () */
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/*
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* Total system memory UMASize
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* >= 2G 512M
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* >=1G 256M
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* <1G 64M
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*/
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sys_mem = msr.lo + 0x1000000; // Ignore 16MB allocated for C6 when finding UMA size
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if ((msr.hi & 0x0000000F) || (sys_mem >= 0x80000000)) {
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uma_memory_size = 0x20000000; /* >= 2G memory, 512M recommended UMA */
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} else if (sys_mem >= 0x40000000) {
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uma_memory_size = 0x10000000; /* >= 1G memory, 256M recommended UMA */
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} else {
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uma_memory_size = 0x4000000; /* <1G memory, 64M recommended UMA */
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}
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uma_memory_base = msr.lo - uma_memory_size; /* TOP_MEM1 */
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printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
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__func__, uma_memory_size, uma_memory_base);
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/* TODO: TOP_MEM2 */
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#else
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uma_memory_size = 0x10000000; /* 256M recommended UMA */
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uma_memory_base = 0x30000000; /* 1GB system memory supported */
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#endif
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setup_uma_memory();
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}
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int add_mainboard_resources(struct lb_memory *mem)
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@ -31,6 +31,7 @@
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#include <cbmem.h>
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#include <cpu/x86/lapic.h>
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#include <cpu/amd/mtrr.h>
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#include "chip.h"
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#include "northbridge.h"
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@ -468,6 +469,50 @@ static void set_resources(device_t dev)
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printk(BIOS_DEBUG, "Fam12h - northbridge.c - set_resources - End.\n");
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}
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void setup_uma_memory(void)
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{
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#if CONFIG_GFXUMA
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msr_t msr, msr2;
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uint32_t sys_mem;
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/* TOP_MEM: the top of DRAM below 4G */
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msr = rdmsr(TOP_MEM);
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printk
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(BIOS_INFO, "%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n",
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__func__, msr.lo, msr.hi);
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/* TOP_MEM2: the top of DRAM above 4G */
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msr2 = rdmsr(TOP_MEM2);
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printk
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(BIOS_INFO, "%s, TOP MEM2: msr2.lo = 0x%08x, msr2.hi = 0x%08x\n",
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__func__, msr2.lo, msr2.hi);
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/* refer to UMA Size Consideration in Family12h BKDG. */
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/* Please reference MemNGetUmaSizeLN () */
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/*
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* Total system memory UMASize
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* >= 2G 512M
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* >=1G 256M
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* <1G 64M
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*/
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sys_mem = msr.lo + 0x1000000; // Ignore 16MB allocated for C6 when finding UMA size
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if ((msr.hi & 0x0000000F) || (sys_mem >= 0x80000000)) {
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uma_memory_size = 0x20000000; /* >= 2G memory, 512M recommended UMA */
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} else if (sys_mem >= 0x40000000) {
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uma_memory_size = 0x10000000; /* >= 1G memory, 256M recommended UMA */
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} else {
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uma_memory_size = 0x4000000; /* <1G memory, 64M recommended UMA */
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}
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uma_memory_base = msr.lo - uma_memory_size; /* TOP_MEM1 */
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printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
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__func__, uma_memory_size, uma_memory_base);
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/* TODO: TOP_MEM2 */
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#else
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uma_memory_size = 0x10000000; /* 256M recommended UMA */
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uma_memory_base = 0x30000000; /* 1GB system memory supported */
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#endif
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}
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/* Domain/Root Complex related code */
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