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| author | Suma Hegde <suma.hegde@amd.com> | 2024-01-06 05:25:29 +0300 |
|---|---|---|
| committer | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2024-01-31 11:30:59 +0300 |
| commit | d2bf115115d556a5a50cec9dd63cb5f64f10de87 (patch) | |
| tree | b92a33d07556cbc3f778b3be74d27529f1c7d2a3 /drivers/platform/x86/amd | |
| parent | ba8dcff0e9c4f8fa6a46315126fb837acb0f98fc (diff) | |
| download | linux-d2bf115115d556a5a50cec9dd63cb5f64f10de87.tar.xz | |
platform/x86/amd/hsmp: Non-ACPI support for AMD F1A_M00~0Fh
AMD EPYC family 0x1A and Model 0x0-0xF are having different
mailbox message ID offset compared to previous
platforms. In case of ACPI based BIOS, this information will be read
from ACPI table, for non-ACPI BIOS, this needs to be #defined.
Signed-off-by: Suma Hegde <suma.hegde@amd.com>
Signed-off-by: Naveen Krishna Chatradhi <nchatrad@amd.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240106022532.1746932-8-suma.hegde@amd.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Diffstat (limited to 'drivers/platform/x86/amd')
| -rw-r--r-- | drivers/platform/x86/amd/hsmp.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/drivers/platform/x86/amd/hsmp.c b/drivers/platform/x86/amd/hsmp.c index 9dc8e036ed72..aecc64a72d20 100644 --- a/drivers/platform/x86/amd/hsmp.c +++ b/drivers/platform/x86/amd/hsmp.c @@ -44,6 +44,7 @@ */ #define SMN_HSMP_BASE 0x3B00000 #define SMN_HSMP_MSG_ID 0x0010534 +#define SMN_HSMP_MSG_ID_F1A_M0H 0x0010934 #define SMN_HSMP_MSG_RESP 0x0010980 #define SMN_HSMP_MSG_DATA 0x00109E0 @@ -734,6 +735,14 @@ static int hsmp_cache_proto_ver(u16 sock_ind) return ret; } +static inline bool is_f1a_m0h(void) +{ + if (boot_cpu_data.x86 == 0x1A && boot_cpu_data.x86_model <= 0x0F) + return true; + + return false; +} + static int init_platform_device(struct device *dev) { struct hsmp_socket *sock; @@ -747,7 +756,16 @@ static int init_platform_device(struct device *dev) sock->sock_ind = i; sock->dev = dev; sock->mbinfo.base_addr = SMN_HSMP_BASE; - sock->mbinfo.msg_id_off = SMN_HSMP_MSG_ID; + + /* + * This is a transitional change from non-ACPI to ACPI, only + * family 0x1A, model 0x00 platform is supported for both ACPI and non-ACPI. + */ + if (is_f1a_m0h()) + sock->mbinfo.msg_id_off = SMN_HSMP_MSG_ID_F1A_M0H; + else + sock->mbinfo.msg_id_off = SMN_HSMP_MSG_ID; + sock->mbinfo.msg_resp_off = SMN_HSMP_MSG_RESP; sock->mbinfo.msg_arg_off = SMN_HSMP_MSG_DATA; sema_init(&sock->hsmp_sem, 1); |