From 091fb05312d8961f77893494d6d981e2a977710d Mon Sep 17 00:00:00 2001 From: Shuo Liu Date: Tue, 12 Mar 2024 00:34:47 +0800 Subject: soc/intel/xeon_sp: Add utils to detect domain0 and stack0 In Xeon-SP, the domain0, which is located at stack0, usually needs special handling due to the compatible devices on it (HEPT, IO-APIC and legacy IOs). This patch adds util function detect whether a give domain or stack is with such a role. TEST=intel/archercity CRB Change-Id: I2f26b4ac54091c24c554f17964502c364288aa40 Signed-off-by: Shuo Liu Reviewed-on: https://review.coreboot.org/c/coreboot/+/81199 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Rudolph --- src/soc/intel/xeon_sp/chip_common.c | 2 +- src/soc/intel/xeon_sp/include/soc/chip_common.h | 5 +++++ 2 files changed, 6 insertions(+), 1 deletion(-) (limited to 'src') diff --git a/src/soc/intel/xeon_sp/chip_common.c b/src/soc/intel/xeon_sp/chip_common.c index d0e01bc7cf..ef504d7f0a 100644 --- a/src/soc/intel/xeon_sp/chip_common.c +++ b/src/soc/intel/xeon_sp/chip_common.c @@ -199,7 +199,7 @@ void iio_pci_domain_read_resources(struct device *dev) int index = 0; - if (dev->path.domain.domain == 0) { + if (is_domain0(dev)) { /* The 0 - 0xfff IO range is not reported by the HOB but still gets decoded */ res = new_resource(dev, index++); res->base = 0; diff --git a/src/soc/intel/xeon_sp/include/soc/chip_common.h b/src/soc/intel/xeon_sp/include/soc/chip_common.h index 40c7ffa377..53deffa7f4 100644 --- a/src/soc/intel/xeon_sp/include/soc/chip_common.h +++ b/src/soc/intel/xeon_sp/include/soc/chip_common.h @@ -77,4 +77,9 @@ bool is_cxl_domain(struct device *dev); #define is_dev_on_ubox_domain(dev) is_ubox_domain(dev_get_pci_domain(dev)) #define is_dev_on_cxl_domain(dev) is_cxl_domain(dev_get_pci_domain(dev)) +#define is_domain0(dev) (dev && dev->path.type == DEVICE_PATH_DOMAIN &&\ + dev->path.domain.domain == 0) +#define is_dev_on_domain0(dev) (is_domain0(dev_get_pci_domain(dev))) +#define is_stack0(socket, stack) (socket == 0 && stack == IioStack0) + #endif /* _CHIP_COMMON_H_ */ -- cgit v1.2.3