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drm/amdgpu: add IP helpers for wait_for_idle and is_idle 

Helpers to to call the IP functions for the selected IP.

Reviewed-by: Chunming zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
hifive-unleashed-5.1
Alex Deucher 2016-06-23 11:41:04 -04:00
parent bfa833558c
commit 5dbbb60ba6
2 changed files with 34 additions and 0 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View File

@ -187,6 +187,10 @@ int amdgpu_set_clockgating_state(struct amdgpu_device *adev,
int amdgpu_set_powergating_state(struct amdgpu_device *adev,
enum amd_ip_block_type block_type,
enum amd_powergating_state state);
int amdgpu_wait_for_idle(struct amdgpu_device *adev,
enum amd_ip_block_type block_type);
bool amdgpu_is_idle(struct amdgpu_device *adev,
enum amd_ip_block_type block_type);
struct amdgpu_ip_block_version {
enum amd_ip_block_type type;

30
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View File

@ -1102,6 +1102,36 @@ int amdgpu_set_powergating_state(struct amdgpu_device *adev,
return r;
}
int amdgpu_wait_for_idle(struct amdgpu_device *adev,
enum amd_ip_block_type block_type)
{
int i, r;
for (i = 0; i < adev->num_ip_blocks; i++) {
if (adev->ip_blocks[i].type == block_type) {
r = adev->ip_blocks[i].funcs->wait_for_idle((void *)adev);
if (r)
return r;
break;
}
}
return 0;
}
bool amdgpu_is_idle(struct amdgpu_device *adev,
enum amd_ip_block_type block_type)
{
int i;
for (i = 0; i < adev->num_ip_blocks; i++) {
if (adev->ip_blocks[i].type == block_type)
return adev->ip_blocks[i].funcs->is_idle((void *)adev);
}
return true;
}
const struct amdgpu_ip_block_version * amdgpu_get_ip_block(
struct amdgpu_device *adev,
enum amd_ip_block_type type)