Commit 236f7d80 authored by Shyam Sundar S K's avatar Shyam Sundar S K Committed by Hans de Goede
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platform/x86/amd/pmc: Modify SMU message port for latest AMD platform 



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: default avatarSanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: default avatarShyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20231228102104.1785383-7-Shyam-sundar.S-k@amd.com


Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
parent d33e992e

drivers/platform/x86/amd/pmc/pmc.c

+5 −3
Original line number Diff line number Diff line
@@ -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;

	}

drivers/platform/x86/amd/pmc/pmc.h

+1 −0
Original line number Diff line number Diff line
@@ -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;