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platform/x86/amd/pmc: Modify SMU message port for latest AMD platform

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The latest platforms use a different SMU message port(0x938) from the one
currently being used (0x538). Make code changes to adapt to this new
information.

Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20231228102104.1785383-7-Shyam-sundar.S-k@amd.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Shyam Sundar S K 2023-12-28 15:51:04 +05:30 committed by Hans de Goede
parent d33e992ec8
commit 236f7d8034
2 changed files with 6 additions and 3 deletions
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8
drivers/platform/x86/amd/pmc/pmc.c
View File

@ -31,7 +31,6 @@
#include "pmc.h"
/* SMU communication registers */
#define AMD_PMC_REGISTER_MESSAGE 0x538
#define AMD_PMC_REGISTER_RESPONSE 0x980
#define AMD_PMC_REGISTER_ARGUMENT 0x9BC
@ -352,14 +351,17 @@ static void amd_pmc_get_ip_info(struct amd_pmc_dev *dev)
case AMD_CPU_ID_CB:
dev->num_ips = 12;
dev->s2d_msg_id = 0xBE;
dev->smu_msg = 0x538;
break;
case AMD_CPU_ID_PS:
dev->num_ips = 21;
dev->s2d_msg_id = 0x85;
dev->smu_msg = 0x538;
break;
case PCI_DEVICE_ID_AMD_1AH_M20H_ROOT:
dev->num_ips = 22;
dev->s2d_msg_id = 0xDE;
dev->smu_msg = 0x938;
break;
}
}
@ -663,7 +665,7 @@ static void amd_pmc_dump_registers(struct amd_pmc_dev *dev)
argument = AMD_S2D_REGISTER_ARGUMENT;
response = AMD_S2D_REGISTER_RESPONSE;
} else {
message = AMD_PMC_REGISTER_MESSAGE;
message = dev->smu_msg;
argument = AMD_PMC_REGISTER_ARGUMENT;
response = AMD_PMC_REGISTER_RESPONSE;
}
@ -690,7 +692,7 @@ static int amd_pmc_send_cmd(struct amd_pmc_dev *dev, u32 arg, u32 *data, u8 msg,
argument = AMD_S2D_REGISTER_ARGUMENT;
response = AMD_S2D_REGISTER_RESPONSE;
} else {
message = AMD_PMC_REGISTER_MESSAGE;
message = dev->smu_msg;
argument = AMD_PMC_REGISTER_ARGUMENT;
response = AMD_PMC_REGISTER_RESPONSE;
}

1
drivers/platform/x86/amd/pmc/pmc.h
View File

@ -26,6 +26,7 @@ struct amd_pmc_dev {
u32 dram_size;
u32 num_ips;
u32 s2d_msg_id;
u32 smu_msg;
/* SMU version information */
u8 smu_program;
u8 major;