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| author | Stuart Hayes <stuart.w.hayes@gmail.com> | 2018-09-26 16:50:18 -0500 |
|---|---|---|
| committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2018-09-27 12:18:15 +0300 |
| commit | 12c956c4f32e08799de452abe1e1ec6021b1e41f (patch) | |
| tree | b32699efb83b8d2870ce5fa9165034b61ccbf097 /drivers/firmware/dcdbas.h | |
| parent | 6aecee6ad41cf97c0270f72da032c10eef025bf0 (diff) | |
| download | linux-12c956c4f32e08799de452abe1e1ec6021b1e41f.tar.gz linux-12c956c4f32e08799de452abe1e1ec6021b1e41f.tar.bz2 linux-12c956c4f32e08799de452abe1e1ec6021b1e41f.zip | |
firmware: dcdbas: Add support for WSMT ACPI table
If the WSMT ACPI table is present and indicates that a fixed communication
buffer should be used, use the firmware-specified buffer instead of
allocating a buffer in memory for communications between the dcdbas driver
and firmare.
Signed-off-by: Stuart Hayes <stuart.w.hayes@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'drivers/firmware/dcdbas.h')
| -rw-r--r-- | drivers/firmware/dcdbas.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/firmware/dcdbas.h b/drivers/firmware/dcdbas.h index ca3cb0a54ab6..52729a494b00 100644 --- a/drivers/firmware/dcdbas.h +++ b/drivers/firmware/dcdbas.h @@ -53,6 +53,7 @@ #define EXPIRED_TIMER (0) #define SMI_CMD_MAGIC (0x534D4931) +#define SMM_EPS_SIG "$SCB" #define DCDBAS_DEV_ATTR_RW(_name) \ DEVICE_ATTR(_name,0600,_name##_show,_name##_store); @@ -103,5 +104,14 @@ struct apm_cmd { int dcdbas_smi_request(struct smi_cmd *smi_cmd); +struct smm_eps_table { + char smm_comm_buff_anchor[4]; + u8 length; + u8 checksum; + u8 version; + u64 smm_comm_buff_addr; + u64 num_of_4k_pages; +} __packed; + #endif /* _DCDBAS_H_ */ |