diff options
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/cpu/x86/smm.h | 26 | ||||
| -rw-r--r-- | src/include/device/pci_def.h | 4 |
2 files changed, 30 insertions, 0 deletions
diff --git a/src/include/cpu/x86/smm.h b/src/include/cpu/x86/smm.h index 4ab9f213f4..d28197232a 100644 --- a/src/include/cpu/x86/smm.h +++ b/src/include/cpu/x86/smm.h @@ -5,6 +5,8 @@ #include <arch/cpu.h> #include <commonlib/region.h> +#include <device/pci_type.h> +#include <device/resource.h> #include <types.h> #define SMM_DEFAULT_BASE 0x30000 @@ -29,6 +31,8 @@ #define APM_CNT_ELOG_GSMI 0xef #define APM_STS 0xb3 +#define SMM_PCI_RESOURCE_STORE_NUM_RESOURCES 6 + /* Send cmd to APM_CNT with HAVE_SMI_HANDLER checking. */ int apm_control(u8 cmd); u8 apm_get_apmc(void); @@ -58,6 +62,13 @@ void smm_soc_exit(void); extern unsigned char _binary_smm_start[]; extern unsigned char _binary_smm_end[]; +struct smm_pci_resource_info { + pci_devfn_t pci_addr; + uint16_t class_device; + uint8_t class_prog; + struct resource resources[SMM_PCI_RESOURCE_STORE_NUM_RESOURCES]; +}; + struct smm_runtime { u32 smbase; u32 smm_size; @@ -66,6 +77,9 @@ struct smm_runtime { u32 gnvs_ptr; u32 cbmemc_size; void *cbmemc; +#if CONFIG(SMM_PCI_RESOURCE_STORE) + struct smm_pci_resource_info pci_resources[CONFIG_SMM_PCI_RESOURCE_STORE_NUM_SLOTS]; +#endif uintptr_t save_state_top[CONFIG_MAX_CPUS]; int smm_log_level; } __packed; @@ -198,4 +212,16 @@ uint32_t smm_revision(void); On AMD systems it is sometimes configurable. */ uint16_t pm_acpi_smi_cmd_port(void); +const volatile struct smm_pci_resource_info *smm_get_pci_resource_store(void); + +void smm_pci_get_stored_resources(const volatile struct smm_pci_resource_info **out_slots, + size_t *out_size); +/* Weak handler function to store PCI BARs. */ +void smm_mainboard_pci_resource_store_init(struct smm_pci_resource_info *slots, size_t size); +/* Helper function to fill BARs from an array of device pointers. */ +bool smm_pci_resource_store_fill_resources(struct smm_pci_resource_info *slots, size_t num_slots, + const struct device **devices, size_t num_devices); + +void smm_pci_resource_store_init(struct smm_runtime *smm_runtime); + #endif /* CPU_X86_SMM_H */ diff --git a/src/include/device/pci_def.h b/src/include/device/pci_def.h index 69ff79d91a..aa53909d1e 100644 --- a/src/include/device/pci_def.h +++ b/src/include/device/pci_def.h @@ -590,4 +590,8 @@ #define PCI_DEV2DEVFN(sdev) (((sdev)>>12) & 0xff) #define PCI_DEV2SEGBUS(sdev) (((sdev)>>20) & 0xfff) +/* Fields from within the device's class value. */ +#define PCI_CLASS_GET_DEVICE(c) (c >> 8) +#define PCI_CLASS_GET_PROG(c) (c & 0xff) + #endif /* PCI_DEF_H */ |