summaryrefslogtreecommitdiff
path: root/src/soc/intel/common
diff options
context:
space:
mode:
authorFurquan Shaikh <furquan@google.com>2020-05-12 16:25:31 -0700
committerAaron Durbin <adurbin@chromium.org>2020-05-14 15:06:39 +0000
commitcc35f723fdcc6999ace18eae18467b900a12c07f (patch)
tree80ee1d085e1f229b3bbcc5e1ae514a88d113240b /src/soc/intel/common
parentabd4714ee059b075be5cb94d332602a4ce454bc9 (diff)
soc/intel: Drop ABOVE_4GB_MEM_BASE_SIZE and use cpu_phys_address_size()
This change uses cpu_phys_address_size() to calculate the size of high MMIO region instead of a macro for each SoC. This ensures that the entire range above TOUUD that can be addressed by the CPU is used for MMIO above 4G boundary. Change-Id: I01a1a86c0c65856f9f35185c2f233c58f18f5dfe Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41347 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/soc/intel/common')
-rw-r--r--src/soc/intel/common/block/systemagent/systemagent.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/soc/intel/common/block/systemagent/systemagent.c b/src/soc/intel/common/block/systemagent/systemagent.c
index 7355817ec2..269236ba32 100644
--- a/src/soc/intel/common/block/systemagent/systemagent.c
+++ b/src/soc/intel/common/block/systemagent/systemagent.c
@@ -2,6 +2,7 @@
#include <cbmem.h>
#include <console/console.h>
+#include <cpu/cpu.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
@@ -102,8 +103,8 @@ void sa_fill_gnvs(global_nvs_t *gnvs)
struct device *sa_dev = pcidev_path_on_root(SA_DEVFN_ROOT);
sa_read_map_entry(sa_dev, &sa_memory_map[SA_TOUUD_REG], &gnvs->a4gb);
- gnvs->a4gs = ABOVE_4GB_MEM_BASE_SIZE;
- printk(BIOS_DEBUG, "PCI space above 4GB MMIO is from 0x%llx to len = 0x%llx\n",
+ gnvs->a4gs = POWER_OF_2(cpu_phys_address_size()) - gnvs->a4gb;
+ printk(BIOS_DEBUG, "PCI space above 4GB MMIO is at 0x%llx, len = 0x%llx\n",
gnvs->a4gb, gnvs->a4gs);
}