diff options
| author | Arthur Heymans <arthur@aheymans.xyz> | 2020-10-22 14:03:46 +0200 |
|---|---|---|
| committer | Philipp Deppenwiese <zaolin.daisuki@gmail.com> | 2020-11-04 13:43:09 +0000 |
| commit | 7f44929ed91d3f3157f2d26673fadb74ae7d8ff4 (patch) | |
| tree | 0bb3d094a24e9974c75dc6ef796f4084a6ab85d8 | |
| parent | 0be783b30e76a9f9aa6bf65eb315a02cb91cbe23 (diff) | |
soc/intel/xeon_sp: Add a smm_region function
This reports where TSEG is located and will be used when setting up
SMM.
Change-Id: I9a89cc79b08e2dcf1ffb91aa27d92c387cc93bfd
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46657
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
| -rw-r--r-- | src/soc/intel/xeon_sp/Makefile.inc | 3 | ||||
| -rw-r--r-- | src/soc/intel/xeon_sp/cpx/include/soc/pci_devs.h | 10 | ||||
| -rw-r--r-- | src/soc/intel/xeon_sp/memmap.c | 22 | ||||
| -rw-r--r-- | src/soc/intel/xeon_sp/skx/include/soc/pci_devs.h | 10 |
4 files changed, 40 insertions, 5 deletions
diff --git a/src/soc/intel/xeon_sp/Makefile.inc b/src/soc/intel/xeon_sp/Makefile.inc index 40a1020c5c..07fe3debb4 100644 --- a/src/soc/intel/xeon_sp/Makefile.inc +++ b/src/soc/intel/xeon_sp/Makefile.inc @@ -6,8 +6,9 @@ subdirs-$(CONFIG_SOC_INTEL_SKYLAKE_SP) += skx subdirs-$(CONFIG_SOC_INTEL_COOPERLAKE_SP) += cpx bootblock-y += bootblock.c spi.c lpc.c gpio.c pch.c -romstage-y += romstage.c reset.c util.c spi.c gpio.c pmutil.c +romstage-y += romstage.c reset.c util.c spi.c gpio.c pmutil.c memmap.c ramstage-y += uncore.c reset.c util.c lpc.c spi.c gpio.c nb_acpi.c ramstage.c chip_common.c +ramstage-y += memmap.c ramstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_PMC) += pmc.c ramstage-$(CONFIG_HAVE_ACPI_TABLES) += acpi.c postcar-y += spi.c diff --git a/src/soc/intel/xeon_sp/cpx/include/soc/pci_devs.h b/src/soc/intel/xeon_sp/cpx/include/soc/pci_devs.h index bb0f877560..68dee28a07 100644 --- a/src/soc/intel/xeon_sp/cpx/include/soc/pci_devs.h +++ b/src/soc/intel/xeon_sp/cpx/include/soc/pci_devs.h @@ -77,8 +77,14 @@ #define VMD_FUNC_NUM 0x05 #define MMAP_VTD_CFG_REG_DEVID 0x2024 -#define VTD_DEV 0x5 -#define VTD_FUNC 0x0 +#define VTD_DEV_NUM 0x5 +#define VTD_FUNC_NUM 0x0 + +#if !defined(__SIMPLE_DEVICE__) +#define VTD_DEV(bus) pcidev_path_on_bus((bus), PCI_DEVFN(VTD_DEV_NUM, VTD_FUNC_NUM)) +#else +#define VTD_DEV(bus) PCI_DEV((bus), VTD_DEV_NUM, VTD_FUNC_NUM) +#endif #define APIC_DEV_NUM 0x05 #define APIC_FUNC_NUM 0x04 diff --git a/src/soc/intel/xeon_sp/memmap.c b/src/soc/intel/xeon_sp/memmap.c new file mode 100644 index 0000000000..79ab47eaed --- /dev/null +++ b/src/soc/intel/xeon_sp/memmap.c @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <device/pci_ops.h> +#include <cpu/x86/smm.h> +#include <soc/pci_devs.h> + +void smm_region(uintptr_t *start, size_t *size) +{ + uintptr_t tseg_base = pci_read_config32(VTD_DEV(0), VTD_TSEG_BASE_CSR); + uintptr_t tseg_limit = pci_read_config32(VTD_DEV(0), VTD_TSEG_LIMIT_CSR); + + tseg_base = ALIGN_DOWN(tseg_base, 1 * MiB); + tseg_limit = ALIGN_DOWN(tseg_limit, 1 * MiB); + /* Only the upper [31:20] bits of an address are checked against + * VTD_TSEG_LIMIT_CSR[31:20] which must be below or equal, so this + * effectively means +1MiB for the limit. + */ + tseg_limit += 1 * MiB; + + *start = tseg_base; + *size = tseg_limit - tseg_base; +} diff --git a/src/soc/intel/xeon_sp/skx/include/soc/pci_devs.h b/src/soc/intel/xeon_sp/skx/include/soc/pci_devs.h index 6b84f70d3b..b500c2896c 100644 --- a/src/soc/intel/xeon_sp/skx/include/soc/pci_devs.h +++ b/src/soc/intel/xeon_sp/skx/include/soc/pci_devs.h @@ -126,8 +126,14 @@ #define HPET0_FUNC_NUM 0x00 #define MMAP_VTD_CFG_REG_DEVID 0x2024 -#define VTD_DEV 5 -#define VTD_FUNC 0 +#define VTD_DEV_NUM 0x5 +#define VTD_FUNC_NUM 0x0 + +#if !defined(__SIMPLE_DEVICE__) +#define VTD_DEV(bus) pcidev_path_on_bus((bus), PCI_DEVFN(VTD_DEV_NUM, VTD_FUNC_NUM)) +#else +#define VTD_DEV(bus) PCI_DEV((bus), VTD_DEV_NUM, VTD_FUNC_NUM) +#endif #define PCH_DEV_SLOT_LPC 0x1f #define PCH_DEVFN_LPC _PCH_DEVFN(LPC, 0) |