Timothy Pearson (tpearson@raptorengineeringinc.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/12015
-gerrit
commit bfd420ee08f5cccf9995c281dc494f46608c41db Author: Timothy Pearson tpearson@raptorengineeringinc.com Date: Fri Jul 24 17:34:29 2015 -0500
cpu/amd/fam10h-15h: Fix BSP stack corruption on 32-core Fam10 systems
On some multi-socket AMD platforms there are too many cores for all APs to start up without stack collisions with either each other or the BSP. On such platforms a larger amount of CAR memory is also available.
Allow the maximum DCACHE size to be increased via a mainboard- specific Kconfig flag.
Change-Id: I72ae8f7abeb9a83b57505469922818f9ec5bdf3f Signed-off-by: Timothy Pearson tpearson@raptorengineeringinc.com --- src/cpu/amd/family_10h-family_15h/Kconfig | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/src/cpu/amd/family_10h-family_15h/Kconfig b/src/cpu/amd/family_10h-family_15h/Kconfig index 81b1d1e..bfb6751 100644 --- a/src/cpu/amd/family_10h-family_15h/Kconfig +++ b/src/cpu/amd/family_10h-family_15h/Kconfig @@ -15,6 +15,12 @@ config CPU_AMD_MODEL_10XXX
if CPU_AMD_MODEL_10XXX
+config USE_LARGE_DCACHE + bool + default y if CPU_AMD_SOCKET_G34_NON_AGESA + default y if CPU_AMD_SOCKET_C32_NON_AGESA + default n + config NUM_IPI_STARTS int default 1 @@ -37,6 +43,7 @@ config DCACHE_BSP_STACK_SIZE
config DCACHE_BSP_STACK_SLUSH hex + default 0x4000 if USE_LARGE_DCACHE default 0x1000
config DCACHE_AP_STACK_SIZE