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soc/intel: Move fill_postcar_frame to memmap.c

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Change-Id: I84b1fad52d623a879f00c3f721f480f58d7d6d8a
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34894
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: David Guckian
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Kyösti Mälkki
2019-08-16 10:37:15 +03:00
parent 4007d7f8c7
commit 81100bf7ff
14 changed files with 166 additions and 154 deletions
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17
src/soc/intel/cannonlake/memmap.c
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@@ -14,9 +14,11 @@
* GNU General Public License for more details.
*/
#include <arch/romstage.h>
#include <arch/ebda.h>
#include <cbmem.h>
#include <console/console.h>
#include <cpu/x86/mtrr.h>
#include <cpu/x86/smm.h>
#include <device/device.h>
#include <device/pci.h>
@@ -264,3 +266,18 @@ void *cbmem_top(void)
return (void *)(uintptr_t)ebda_cfg.tolum_base;
}
void fill_postcar_frame(struct postcar_frame *pcf)
{
uintptr_t top_of_ram;
/*
* We need to make sure ramstage will be run cached. At this
* point exact location of ramstage in cbmem is not known.
* Instruct postcar to cache 16 megs under cbmem top which is
* a safe bet to cover ramstage.
*/
top_of_ram = (uintptr_t) cbmem_top();
printk(BIOS_DEBUG, "top_of_ram = 0x%lx\n", top_of_ram);
top_of_ram -= 16*MiB;
postcar_frame_add_mtrr(pcf, top_of_ram, 16*MiB, MTRR_TYPE_WRBACK);
}