diff options
| author | Tom St Denis <tom.stdenis@amd.com> | 2016-09-15 16:08:44 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-09-19 20:38:26 +0200 |
| commit | f2cdaf20664525227f721ac3a4c72ee8ef4b37b8 (patch) | |
| tree | d4e48841d4b83d120eadfe8289a1126202f9929b | |
| parent | drm/amd/powerplay: Add read_sensor() callback to hwmgr (v3) (diff) | |
| download | linux-f2cdaf20664525227f721ac3a4c72ee8ef4b37b8.tar.xz linux-f2cdaf20664525227f721ac3a4c72ee8ef4b37b8.zip | |
drm/amd/amdgpu: Hook up read_sensor() to debugfs (v2)
(v2) Tidy'ed up read function.
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 377d81875c6d..490f04f0efe8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2771,6 +2771,29 @@ static ssize_t amdgpu_debugfs_gca_config_read(struct file *f, char __user *buf, return result; } +static ssize_t amdgpu_debugfs_sensor_read(struct file *f, char __user *buf, + size_t size, loff_t *pos) +{ + struct amdgpu_device *adev = f->f_inode->i_private; + int idx, r; + int32_t value; + + if (size != 4 || *pos & 0x3) + return -EINVAL; + + /* convert offset to sensor number */ + idx = *pos >> 2; + + if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->read_sensor) + r = adev->powerplay.pp_funcs->read_sensor(adev->powerplay.pp_handle, idx, &value); + else + return -EINVAL; + + if (!r) + r = put_user(value, (int32_t *)buf); + + return !r ? 4 : r; +} static const struct file_operations amdgpu_debugfs_regs_fops = { .owner = THIS_MODULE, @@ -2803,12 +2826,19 @@ static const struct file_operations amdgpu_debugfs_gca_config_fops = { .llseek = default_llseek }; +static const struct file_operations amdgpu_debugfs_sensors_fops = { + .owner = THIS_MODULE, + .read = amdgpu_debugfs_sensor_read, + .llseek = default_llseek +}; + static const struct file_operations *debugfs_regs[] = { &amdgpu_debugfs_regs_fops, &amdgpu_debugfs_regs_didt_fops, &amdgpu_debugfs_regs_pcie_fops, &amdgpu_debugfs_regs_smc_fops, &amdgpu_debugfs_gca_config_fops, + &amdgpu_debugfs_sensors_fops, }; static const char *debugfs_regs_names[] = { @@ -2817,6 +2847,7 @@ static const char *debugfs_regs_names[] = { "amdgpu_regs_pcie", "amdgpu_regs_smc", "amdgpu_gca_config", + "amdgpu_sensors", }; static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev) |