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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>
hifive-unleashed-5.1
Tom St Denis 2016-09-15 10:08:44 -04:00 committed by Alex Deucher
parent a6e3695221
commit f2cdaf2066
1 changed files with 31 additions and 0 deletions
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31
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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@ -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)