diff options
| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2012-08-05 12:11:40 +0300 |
|---|---|---|
| committer | Alexandru Gagniuc <mr.nuke.me@gmail.com> | 2012-08-09 19:15:32 +0200 |
| commit | dbc4739a0dcaffde1d0f2edbc6878e88b77ebd77 (patch) | |
| tree | 11646fc41d0d81e6ad0c076fc2d4f3aa048fee75 /src/northbridge/amd/amdfam10 | |
| parent | 7874e9dcfc710402a692c4f36bae78d453b27ccc (diff) | |
AMD northbridge: copy TOP_MEM and TOP_MEM2 for distribution
Take a copy of BSP CPU's TOP_MEM and TOP_MEM2 MSRs to be distributed
to AP CPUs and factor out the debugging info from setup_uma_memory().
Change-Id: I1acb4eaa3fe118aee223df1ebff997289f5d3a56
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/1387
Tested-by: build bot (Jenkins)
Reviewed-by: Zheng Bao <zheng.bao@amd.com>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Diffstat (limited to 'src/northbridge/amd/amdfam10')
| -rw-r--r-- | src/northbridge/amd/amdfam10/northbridge.c | 22 |
1 files changed, 4 insertions, 18 deletions
diff --git a/src/northbridge/amd/amdfam10/northbridge.c b/src/northbridge/amd/amdfam10/northbridge.c index aa15fdd6e5..865a3bc15f 100644 --- a/src/northbridge/amd/amdfam10/northbridge.c +++ b/src/northbridge/amd/amdfam10/northbridge.c @@ -851,22 +851,9 @@ static void disable_hoist_memory(unsigned long hole_startk, int node_id) static void setup_uma_memory(void) { #if CONFIG_GFXUMA - msr_t msr, msr2; - - /* TOP_MEM: the top of DRAM below 4G */ - msr = rdmsr(TOP_MEM); - printk(BIOS_INFO, - "%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n", - __func__, msr.lo, msr.hi); - - /* TOP_MEM2: the top of DRAM above 4G */ - msr2 = rdmsr(TOP_MEM2); - printk(BIOS_INFO, - "%s, TOP MEM2: msr.lo = 0x%08x, msr.hi = 0x%08x\n", - __func__, msr2.lo, msr2.hi); - + uint32_t topmem = (uint32_t) bsp_topmem(); /* refer to UMA Size Consideration in 780 BDG. */ - switch (msr.lo) { + switch (topmem) { case 0x10000000: /* 256M system memory */ uma_memory_size = 0x4000000; /* 64M recommended UMA */ break; @@ -880,11 +867,9 @@ static void setup_uma_memory(void) break; } - uma_memory_base = msr.lo - uma_memory_size; /* TOP_MEM1 */ + 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); - - /* TODO: TOP_MEM2 */ #endif } @@ -903,6 +888,7 @@ static void amdfam10_domain_set_resources(device_t dev) u32 reset_memhole = 1; #endif + setup_bsp_ramtop(); setup_uma_memory(); #if CONFIG_PCI_64BIT_PREF_MEM |