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Fix K8 boards high tables on UMA systems (KT690 for example) 

Thanks to Carl-Daniel for pointing this out with some example code.

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4835 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Stefan Reinauer 2009-10-24 12:40:52 +00:00 committed by Stefan Reinauer
parent 561b6c68c1
commit 8f3b8583e2
1 changed files with 17 additions and 0 deletions
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17
src/northbridge/amd/amdk8/northbridge.c
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@ -837,6 +837,9 @@ static uint32_t hoist_memory(unsigned long hole_startk, int node_id)
#if CONFIG_WRITE_HIGH_TABLES==1
#define HIGH_TABLES_SIZE 64 // maximum size of high tables in KB
extern uint64_t high_tables_base, high_tables_size;
#if CONFIG_GFXUMA == 1
extern uint64_t uma_memory_base, uma_memory_size;
#endif
#endif
static void amdk8_domain_set_resources(device_t dev)
@ -1001,7 +1004,13 @@ static void amdk8_domain_set_resources(device_t dev)
}
#if CONFIG_GFXUMA == 1
printk_debug("node %d : uma_memory_base/1024=0x%08x, mmio_basek=0x%08x, basek=0x%08x, limitk=0x%08x\n", i, uma_memory_base >> 10, mmio_basek, basek, limitk);
if ((uma_memory_base >> 10) < mmio_basek)
printk_alert("node %d: UMA memory starts below mmio_basek\n", i);
#else
// printk_debug("node %d : mmio_basek=%08x, basek=%08x, limitk=%08x\n", i, mmio_basek, basek, limitk); //yhlu
#endif
/* See if I need to split the region to accomodate pci memory space */
if ( (basek < 4*1024*1024 ) && (limitk > mmio_basek) ) {
@ -1015,7 +1024,11 @@ static void amdk8_domain_set_resources(device_t dev)
#if CONFIG_WRITE_HIGH_TABLES==1
if (i==0 && high_tables_base==0) {
/* Leave some space for ACPI, PIRQ and MP tables */
#if CONFIG_GFXUMA == 1
high_tables_base = ((uma_memory_base >> 10) - HIGH_TABLES_SIZE) * 1024;
#else
high_tables_base = (mmio_basek - HIGH_TABLES_SIZE) * 1024;
#endif
high_tables_size = HIGH_TABLES_SIZE * 1024;
printk_debug(" split: %dK table at =%08llx\n", HIGH_TABLES_SIZE,
high_tables_base);
@ -1051,7 +1064,11 @@ static void amdk8_domain_set_resources(device_t dev)
i, mmio_basek, basek, limitk);
if (i==0 && high_tables_base==0) {
/* Leave some space for ACPI, PIRQ and MP tables */
#if CONFIG_GFXUMA == 1
high_tables_base = ((uma_memory_base >> 10) - HIGH_TABLES_SIZE) * 1024;
#else
high_tables_base = (limitk - HIGH_TABLES_SIZE) * 1024;
#endif
high_tables_size = HIGH_TABLES_SIZE * 1024;
}
#endif