iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/amdgpu/mes: add mes register access interface

Browse Source 
Add mes register access routines:
1. read register
2. write register
3. wait register
4. write and wait register

Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jack Xiao 2022-06-16 21:23:01 +08:00 committed by Alex Deucher
parent 7d4705b33c
commit adc0e6ab0d
1 changed files with 131 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

132
drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
View File

@ -189,15 +189,29 @@ int amdgpu_mes_init(struct amdgpu_device *adev)
r = amdgpu_device_wb_get(adev, &adev->mes.query_status_fence_offs);
if (r) {
amdgpu_device_wb_free(adev, adev->mes.sch_ctx_offs);
dev_err(adev->dev,
"(%d) query_status_fence_offs wb alloc failed\n", r);
return r;
goto error_ids;
}
adev->mes.query_status_fence_gpu_addr =
adev->wb.gpu_addr + (adev->mes.query_status_fence_offs * 4);
adev->mes.query_status_fence_ptr =
(uint64_t *)&adev->wb.wb[adev->mes.query_status_fence_offs];
r = amdgpu_device_wb_get(adev, &adev->mes.read_val_offs);
if (r) {
amdgpu_device_wb_free(adev, adev->mes.sch_ctx_offs);
amdgpu_device_wb_free(adev, adev->mes.query_status_fence_offs);
dev_err(adev->dev,
"(%d) read_val_offs alloc failed\n", r);
goto error_ids;
}
adev->mes.read_val_gpu_addr =
adev->wb.gpu_addr + (adev->mes.read_val_offs * 4);
adev->mes.read_val_ptr =
(uint32_t *)&adev->wb.wb[adev->mes.read_val_offs];
r = amdgpu_mes_doorbell_init(adev);
if (r)
goto error;
@ -206,6 +220,8 @@ int amdgpu_mes_init(struct amdgpu_device *adev)
error:
amdgpu_device_wb_free(adev, adev->mes.sch_ctx_offs);
amdgpu_device_wb_free(adev, adev->mes.query_status_fence_offs);
amdgpu_device_wb_free(adev, adev->mes.read_val_offs);
error_ids:
idr_destroy(&adev->mes.pasid_idr);
idr_destroy(&adev->mes.gang_id_idr);
@ -218,6 +234,8 @@ error_ids:
void amdgpu_mes_fini(struct amdgpu_device *adev)
{
amdgpu_device_wb_free(adev, adev->mes.sch_ctx_offs);
amdgpu_device_wb_free(adev, adev->mes.query_status_fence_offs);
amdgpu_device_wb_free(adev, adev->mes.read_val_offs);
idr_destroy(&adev->mes.pasid_idr);
idr_destroy(&adev->mes.gang_id_idr);
@ -794,6 +812,118 @@ int amdgpu_mes_unmap_legacy_queue(struct amdgpu_device *adev,
return r;
}
uint32_t amdgpu_mes_rreg(struct amdgpu_device *adev, uint32_t reg)
{
struct mes_misc_op_input op_input;
int r, val = 0;
amdgpu_mes_lock(&adev->mes);
op_input.op = MES_MISC_OP_READ_REG;
op_input.read_reg.reg_offset = reg;
op_input.read_reg.buffer_addr = adev->mes.read_val_gpu_addr;
if (!adev->mes.funcs->misc_op) {
DRM_ERROR("mes rreg is not supported!\n");
goto error;
}
r = adev->mes.funcs->misc_op(&adev->mes, &op_input);
if (r)
DRM_ERROR("failed to read reg (0x%x)\n", reg);
else
val = *(adev->mes.read_val_ptr);
error:
amdgpu_mes_unlock(&adev->mes);
return val;
}
int amdgpu_mes_wreg(struct amdgpu_device *adev,
uint32_t reg, uint32_t val)
{
struct mes_misc_op_input op_input;
int r;
amdgpu_mes_lock(&adev->mes);
op_input.op = MES_MISC_OP_WRITE_REG;
op_input.write_reg.reg_offset = reg;
op_input.write_reg.reg_value = val;
if (!adev->mes.funcs->misc_op) {
DRM_ERROR("mes wreg is not supported!\n");
r = -EINVAL;
goto error;
}
r = adev->mes.funcs->misc_op(&adev->mes, &op_input);
if (r)
DRM_ERROR("failed to write reg (0x%x)\n", reg);
error:
amdgpu_mes_unlock(&adev->mes);
return r;
}
int amdgpu_mes_reg_write_reg_wait(struct amdgpu_device *adev,
uint32_t reg0, uint32_t reg1,
uint32_t ref, uint32_t mask)
{
struct mes_misc_op_input op_input;
int r;
amdgpu_mes_lock(&adev->mes);
op_input.op = MES_MISC_OP_WRM_REG_WR_WAIT;
op_input.wrm_reg.reg0 = reg0;
op_input.wrm_reg.reg1 = reg1;
op_input.wrm_reg.ref = ref;
op_input.wrm_reg.mask = mask;
if (!adev->mes.funcs->misc_op) {
DRM_ERROR("mes reg_write_reg_wait is not supported!\n");
r = -EINVAL;
goto error;
}
r = adev->mes.funcs->misc_op(&adev->mes, &op_input);
if (r)
DRM_ERROR("failed to reg_write_reg_wait\n");
error:
amdgpu_mes_unlock(&adev->mes);
return r;
}
int amdgpu_mes_reg_wait(struct amdgpu_device *adev, uint32_t reg,
uint32_t val, uint32_t mask)
{
struct mes_misc_op_input op_input;
int r;
amdgpu_mes_lock(&adev->mes);
op_input.op = MES_MISC_OP_WRM_REG_WAIT;
op_input.wrm_reg.reg0 = reg;
op_input.wrm_reg.ref = val;
op_input.wrm_reg.mask = mask;
if (!adev->mes.funcs->misc_op) {
DRM_ERROR("mes reg wait is not supported!\n");
r = -EINVAL;
goto error;
}
r = adev->mes.funcs->misc_op(&adev->mes, &op_input);
if (r)
DRM_ERROR("failed to reg_write_reg_wait\n");
error:
amdgpu_mes_unlock(&adev->mes);
return r;
}
static void
amdgpu_mes_ring_to_queue_props(struct amdgpu_device *adev,
struct amdgpu_ring *ring,