diff options
| author | Dennis Li <Dennis.Li@amd.com> | 2020-08-19 17:23:03 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-08-24 12:22:56 -0400 |
| commit | 53b3f8f40e6cff36ae12b11e6d6b308af3c7e53f (patch) | |
| tree | 865f5a2a0f2d69a04dbceb1853672ceef77dcb53 /drivers/gpu/drm/amd/pm/amdgpu_pm.c | |
| parent | c9977dffcc7e0f728e82209c140991c5bd27c491 (diff) | |
| download | linux-53b3f8f40e6cff36ae12b11e6d6b308af3c7e53f.tar.gz linux-53b3f8f40e6cff36ae12b11e6d6b308af3c7e53f.tar.bz2 linux-53b3f8f40e6cff36ae12b11e6d6b308af3c7e53f.zip | |
drm/amdgpu: refine codes to avoid reentering GPU recovery
if other threads have holden the reset lock, recovery will
fail to try_lock. Therefore we introduce atomic hive->in_reset
and adev->in_gpu_reset, to avoid reentering GPU recovery.
v2:
drop "? true : false" in the definition of amdgpu_in_reset
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Dennis Li <Dennis.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/pm/amdgpu_pm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/pm/amdgpu_pm.c | 116 |
1 files changed, 58 insertions, 58 deletions
diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c index a77f7347fdfc..e469de005451 100644 --- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c +++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c @@ -121,7 +121,7 @@ static ssize_t amdgpu_get_power_dpm_state(struct device *dev, enum amd_pm_state_type pm; int ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = pm_runtime_get_sync(ddev->dev); @@ -159,7 +159,7 @@ static ssize_t amdgpu_set_power_dpm_state(struct device *dev, enum amd_pm_state_type state; int ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; if (strncmp("battery", buf, strlen("battery")) == 0) @@ -265,7 +265,7 @@ static ssize_t amdgpu_get_power_dpm_force_performance_level(struct device *dev, enum amd_dpm_forced_level level = 0xff; int ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = pm_runtime_get_sync(ddev->dev); @@ -307,7 +307,7 @@ static ssize_t amdgpu_set_power_dpm_force_performance_level(struct device *dev, enum amd_dpm_forced_level current_level = 0xff; int ret = 0; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; if (strncmp("low", buf, strlen("low")) == 0) { @@ -411,7 +411,7 @@ static ssize_t amdgpu_get_pp_num_states(struct device *dev, struct pp_states_info data; int i, buf_len, ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = pm_runtime_get_sync(ddev->dev); @@ -455,7 +455,7 @@ static ssize_t amdgpu_get_pp_cur_state(struct device *dev, enum amd_pm_state_type pm = 0; int i = 0, ret = 0; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = pm_runtime_get_sync(ddev->dev); @@ -496,7 +496,7 @@ static ssize_t amdgpu_get_pp_force_state(struct device *dev, struct drm_device *ddev = dev_get_drvdata(dev); struct amdgpu_device *adev = ddev->dev_private; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; if (adev->pp_force_state_enabled) @@ -516,7 +516,7 @@ static ssize_t amdgpu_set_pp_force_state(struct device *dev, unsigned long idx; int ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; if (strlen(buf) == 1) @@ -576,7 +576,7 @@ static ssize_t amdgpu_get_pp_table(struct device *dev, char *table = NULL; int size, ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = pm_runtime_get_sync(ddev->dev); @@ -620,7 +620,7 @@ static ssize_t amdgpu_set_pp_table(struct device *dev, struct amdgpu_device *adev = ddev->dev_private; int ret = 0; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = pm_runtime_get_sync(ddev->dev); @@ -773,7 +773,7 @@ static ssize_t amdgpu_set_pp_od_clk_voltage(struct device *dev, const char delimiter[3] = {' ', '\n', '\0'}; uint32_t type; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; if (count > 127) @@ -867,7 +867,7 @@ static ssize_t amdgpu_get_pp_od_clk_voltage(struct device *dev, ssize_t size; int ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = pm_runtime_get_sync(ddev->dev); @@ -921,7 +921,7 @@ static ssize_t amdgpu_set_pp_features(struct device *dev, uint64_t featuremask; int ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = kstrtou64(buf, 0, &featuremask); @@ -966,7 +966,7 @@ static ssize_t amdgpu_get_pp_features(struct device *dev, ssize_t size; int ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = pm_runtime_get_sync(ddev->dev); @@ -1027,7 +1027,7 @@ static ssize_t amdgpu_get_pp_dpm_sclk(struct device *dev, ssize_t size; int ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = pm_runtime_get_sync(ddev->dev); @@ -1095,7 +1095,7 @@ static ssize_t amdgpu_set_pp_dpm_sclk(struct device *dev, int ret; uint32_t mask = 0; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = amdgpu_read_mask(buf, count, &mask); @@ -1131,7 +1131,7 @@ static ssize_t amdgpu_get_pp_dpm_mclk(struct device *dev, ssize_t size; int ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = pm_runtime_get_sync(ddev->dev); @@ -1163,7 +1163,7 @@ static ssize_t amdgpu_set_pp_dpm_mclk(struct device *dev, uint32_t mask = 0; int ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = amdgpu_read_mask(buf, count, &mask); @@ -1199,7 +1199,7 @@ static ssize_t amdgpu_get_pp_dpm_socclk(struct device *dev, ssize_t size; int ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = pm_runtime_get_sync(ddev->dev); @@ -1231,7 +1231,7 @@ static ssize_t amdgpu_set_pp_dpm_socclk(struct device *dev, int ret; uint32_t mask = 0; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = amdgpu_read_mask(buf, count, &mask); @@ -1269,7 +1269,7 @@ static ssize_t amdgpu_get_pp_dpm_fclk(struct device *dev, ssize_t size; int ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = pm_runtime_get_sync(ddev->dev); @@ -1301,7 +1301,7 @@ static ssize_t amdgpu_set_pp_dpm_fclk(struct device *dev, int ret; uint32_t mask = 0; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = amdgpu_read_mask(buf, count, &mask); @@ -1339,7 +1339,7 @@ static ssize_t amdgpu_get_pp_dpm_dcefclk(struct device *dev, ssize_t size; int ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = pm_runtime_get_sync(ddev->dev); @@ -1371,7 +1371,7 @@ static ssize_t amdgpu_set_pp_dpm_dcefclk(struct device *dev, int ret; uint32_t mask = 0; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = amdgpu_read_mask(buf, count, &mask); @@ -1409,7 +1409,7 @@ static ssize_t amdgpu_get_pp_dpm_pcie(struct device *dev, ssize_t size; int ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = pm_runtime_get_sync(ddev->dev); @@ -1441,7 +1441,7 @@ static ssize_t amdgpu_set_pp_dpm_pcie(struct device *dev, int ret; uint32_t mask = 0; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = amdgpu_read_mask(buf, count, &mask); @@ -1479,7 +1479,7 @@ static ssize_t amdgpu_get_pp_sclk_od(struct device *dev, uint32_t value = 0; int ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = pm_runtime_get_sync(ddev->dev); @@ -1509,7 +1509,7 @@ static ssize_t amdgpu_set_pp_sclk_od(struct device *dev, int ret; long int value; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = kstrtol(buf, 0, &value); @@ -1552,7 +1552,7 @@ static ssize_t amdgpu_get_pp_mclk_od(struct device *dev, uint32_t value = 0; int ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = pm_runtime_get_sync(ddev->dev); @@ -1582,7 +1582,7 @@ static ssize_t amdgpu_set_pp_mclk_od(struct device *dev, int ret; long int value; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = kstrtol(buf, 0, &value); @@ -1645,7 +1645,7 @@ static ssize_t amdgpu_get_pp_power_profile_mode(struct device *dev, ssize_t size; int ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = pm_runtime_get_sync(ddev->dev); @@ -1685,7 +1685,7 @@ static ssize_t amdgpu_set_pp_power_profile_mode(struct device *dev, long int profile_mode = 0; const char delimiter[3] = {' ', '\n', '\0'}; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; tmp[0] = *(buf); @@ -1749,7 +1749,7 @@ static ssize_t amdgpu_get_gpu_busy_percent(struct device *dev, struct amdgpu_device *adev = ddev->dev_private; int r, value, size = sizeof(value); - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; r = pm_runtime_get_sync(ddev->dev); @@ -1787,7 +1787,7 @@ static ssize_t amdgpu_get_mem_busy_percent(struct device *dev, struct amdgpu_device *adev = ddev->dev_private; int r, value, size = sizeof(value); - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; r = pm_runtime_get_sync(ddev->dev); @@ -1830,7 +1830,7 @@ static ssize_t amdgpu_get_pcie_bw(struct device *dev, uint64_t count0 = 0, count1 = 0; int ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; if (adev->flags & AMD_IS_APU) @@ -1871,7 +1871,7 @@ static ssize_t amdgpu_get_unique_id(struct device *dev, struct drm_device *ddev = dev_get_drvdata(dev); struct amdgpu_device *adev = ddev->dev_private; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; if (adev->unique_id) @@ -1969,7 +1969,7 @@ static ssize_t amdgpu_get_gpu_metrics(struct device *dev, ssize_t size = 0; int ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = pm_runtime_get_sync(ddev->dev); @@ -2193,7 +2193,7 @@ static ssize_t amdgpu_hwmon_show_temp(struct device *dev, int channel = to_sensor_dev_attr(attr)->index; int r, temp = 0, size = sizeof(temp); - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; if (channel >= PP_TEMP_MAX) @@ -2329,7 +2329,7 @@ static ssize_t amdgpu_hwmon_get_pwm1_enable(struct device *dev, u32 pwm_mode = 0; int ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = pm_runtime_get_sync(adev->ddev->dev); @@ -2365,7 +2365,7 @@ static ssize_t amdgpu_hwmon_set_pwm1_enable(struct device *dev, int err, ret; int value; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; err = kstrtoint(buf, 10, &value); @@ -2419,7 +2419,7 @@ static ssize_t amdgpu_hwmon_set_pwm1(struct device *dev, u32 value; u32 pwm_mode; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; err = pm_runtime_get_sync(adev->ddev->dev); @@ -2473,7 +2473,7 @@ static ssize_t amdgpu_hwmon_get_pwm1(struct device *dev, int err; u32 speed = 0; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; err = pm_runtime_get_sync(adev->ddev->dev); @@ -2508,7 +2508,7 @@ static ssize_t amdgpu_hwmon_get_fan1_input(struct device *dev, int err; u32 speed = 0; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; err = pm_runtime_get_sync(adev->ddev->dev); @@ -2542,7 +2542,7 @@ static ssize_t amdgpu_hwmon_get_fan1_min(struct device *dev, u32 size = sizeof(min_rpm); int r; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; r = pm_runtime_get_sync(adev->ddev->dev); @@ -2572,7 +2572,7 @@ static ssize_t amdgpu_hwmon_get_fan1_max(struct device *dev, u32 size = sizeof(max_rpm); int r; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; r = pm_runtime_get_sync(adev->ddev->dev); @@ -2601,7 +2601,7 @@ static ssize_t amdgpu_hwmon_get_fan1_target(struct device *dev, int err; u32 rpm = 0; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; err = pm_runtime_get_sync(adev->ddev->dev); @@ -2635,7 +2635,7 @@ static ssize_t amdgpu_hwmon_set_fan1_target(struct device *dev, u32 value; u32 pwm_mode; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; err = pm_runtime_get_sync(adev->ddev->dev); @@ -2686,7 +2686,7 @@ static ssize_t amdgpu_hwmon_get_fan1_enable(struct device *dev, u32 pwm_mode = 0; int ret; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; ret = pm_runtime_get_sync(adev->ddev->dev); @@ -2723,7 +2723,7 @@ static ssize_t amdgpu_hwmon_set_fan1_enable(struct device *dev, int value; u32 pwm_mode; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; err = kstrtoint(buf, 10, &value); @@ -2768,7 +2768,7 @@ static ssize_t amdgpu_hwmon_show_vddgfx(struct device *dev, u32 vddgfx; int r, size = sizeof(vddgfx); - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; r = pm_runtime_get_sync(adev->ddev->dev); @@ -2805,7 +2805,7 @@ static ssize_t amdgpu_hwmon_show_vddnb(struct device *dev, u32 vddnb; int r, size = sizeof(vddnb); - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; /* only APUs have vddnb */ @@ -2847,7 +2847,7 @@ static ssize_t amdgpu_hwmon_show_power_avg(struct device *dev, int r, size = sizeof(u32); unsigned uw; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; r = pm_runtime_get_sync(adev->ddev->dev); @@ -2888,7 +2888,7 @@ static ssize_t amdgpu_hwmon_show_power_cap_max(struct device *dev, ssize_t size; int r; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; r = pm_runtime_get_sync(adev->ddev->dev); @@ -2922,7 +2922,7 @@ static ssize_t amdgpu_hwmon_show_power_cap(struct device *dev, ssize_t size; int r; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; r = pm_runtime_get_sync(adev->ddev->dev); @@ -2957,7 +2957,7 @@ static ssize_t amdgpu_hwmon_set_power_cap(struct device *dev, int err; u32 value; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; if (amdgpu_sriov_vf(adev)) @@ -3000,7 +3000,7 @@ static ssize_t amdgpu_hwmon_show_sclk(struct device *dev, uint32_t sclk; int r, size = sizeof(sclk); - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; r = pm_runtime_get_sync(adev->ddev->dev); @@ -3037,7 +3037,7 @@ static ssize_t amdgpu_hwmon_show_mclk(struct device *dev, uint32_t mclk; int r, size = sizeof(mclk); - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; r = pm_runtime_get_sync(adev->ddev->dev); @@ -3558,7 +3558,7 @@ static int amdgpu_debugfs_pm_info(struct seq_file *m, void *data) u32 flags = 0; int r; - if (adev->in_gpu_reset) + if (amdgpu_in_reset(adev)) return -EPERM; r = pm_runtime_get_sync(dev->dev); |