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drm/amdgpu: Add smn callbacks to register block

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Add smn block to register access and callback interface definition to
get smn base.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Lijo Lazar
2025-12-09 18:01:25 +05:30
committed by Alex Deucher
parent b2d5512471
commit 467ebfe65f
2 changed files with 24 additions and 0 deletions
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11
drivers/gpu/drm/amd/amdgpu/amdgpu_reg_access.c
View File

@@ -283,6 +283,17 @@ void amdgpu_reg_pciep_wr32(struct amdgpu_device *adev, uint32_t reg, uint32_t v)
adev->reg.pcie.port_wreg(adev, reg, v);
}
uint64_t amdgpu_reg_get_smn_base64(struct amdgpu_device *adev,
enum amd_hw_ip_block_type block,
int die_inst)
{
if (!adev->reg.smn.get_smn_base) {
dev_err_once(adev->dev, "SMN base address callback not set\n");
return 0;
}
return adev->reg.smn.get_smn_base(adev, block, die_inst);
}
/*
* register access helper functions.
*/

13
drivers/gpu/drm/amd/amdgpu/amdgpu_reg_access.h
View File

@@ -27,6 +27,8 @@
#include <linux/types.h>
#include <linux/spinlock.h>
#include "amdgpu_ip.h"
struct amdgpu_device;
typedef uint32_t (*amdgpu_rreg_t)(struct amdgpu_device *, uint32_t);
@@ -42,6 +44,9 @@ typedef uint32_t (*amdgpu_block_rreg_t)(struct amdgpu_device *, uint32_t,
uint32_t);
typedef void (*amdgpu_block_wreg_t)(struct amdgpu_device *, uint32_t, uint32_t,
uint32_t);
typedef uint64_t (*amdgpu_reg_get_smn_base64_t)(struct amdgpu_device *adev,
enum amd_hw_ip_block_type block,
int die_inst);
struct amdgpu_reg_ind {
spinlock_t lock;
@@ -69,6 +74,10 @@ struct amdgpu_reg_pcie_ind {
amdgpu_wreg_t port_wreg;
};
struct amdgpu_reg_smn_ext {
amdgpu_reg_get_smn_base64_t get_smn_base;
};
struct amdgpu_reg_access {
struct amdgpu_reg_ind smc;
struct amdgpu_reg_ind uvd_ctx;
@@ -77,6 +86,7 @@ struct amdgpu_reg_access {
struct amdgpu_reg_ind se_cac;
struct amdgpu_reg_ind_blk audio_endpt;
struct amdgpu_reg_pcie_ind pcie;
struct amdgpu_reg_smn_ext smn;
};
void amdgpu_reg_access_init(struct amdgpu_device *adev);
@@ -109,6 +119,9 @@ void amdgpu_reg_pcie_ext_wr64(struct amdgpu_device *adev, uint64_t reg,
uint32_t amdgpu_reg_pciep_rd32(struct amdgpu_device *adev, uint32_t reg);
void amdgpu_reg_pciep_wr32(struct amdgpu_device *adev, uint32_t reg,
uint32_t v);
uint64_t amdgpu_reg_get_smn_base64(struct amdgpu_device *adev,
enum amd_hw_ip_block_type block,
int die_inst);
uint32_t amdgpu_device_rreg(struct amdgpu_device *adev, uint32_t reg,
uint32_t acc_flags);