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drm/amd/powerplay/hwmgr: don't add invalid voltage 

if atomctrl_get_voltage_evv_on_sclk returns non zero (fail) in the expansion
of the PP_ASSERT_WITH_CODE macro the continue will actually do nothing
(The macro uses a do ... while(0) as scope, which eats the continue).
Based on the code I don't think this was the intent.
Unfortunately fixing this requires rewriting the control flow and
removing the macros.

v2: added signed of by
fixed error message print

v3: agd: drop DRM_ERROR

Signed-off-by: Moritz Kühner <kuehner.moritz@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Moritz Kühner 2016-04-17 16:15:24 +02:00 committed by Alex Deucher
parent c790f87318
commit ac0cc35008
1 changed files with 26 additions and 24 deletions
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50
drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
View File

@ -432,19 +432,20 @@ int tonga_get_evv_voltage(struct pp_hwmgr *hwmgr)
}
}
}
PP_ASSERT_WITH_CODE(0 == atomctrl_get_voltage_evv_on_sclk
(hwmgr, VOLTAGE_TYPE_VDDGFX, sclk,
virtual_voltage_id, &vddgfx),
"Error retrieving EVV voltage value!", continue);
if (0 == atomctrl_get_voltage_evv_on_sclk
(hwmgr, VOLTAGE_TYPE_VDDGFX, sclk,
virtual_voltage_id, &vddgfx)) {
/* need to make sure vddgfx is less than 2v or else, it could burn the ASIC. */
PP_ASSERT_WITH_CODE((vddgfx < 2000 && vddgfx != 0), "Invalid VDDGFX value!", return -1);
/* need to make sure vddgfx is less than 2v or else, it could burn the ASIC. */
PP_ASSERT_WITH_CODE((vddgfx < 2000 && vddgfx != 0), "Invalid VDDGFX value!", return -1);
/* the voltage should not be zero nor equal to leakage ID */
if (vddgfx != 0 && vddgfx != virtual_voltage_id) {
data->vddcgfx_leakage.actual_voltage[data->vddcgfx_leakage.count] = vddgfx;
data->vddcgfx_leakage.leakage_id[data->vddcgfx_leakage.count] = virtual_voltage_id;
data->vddcgfx_leakage.count++;
/* the voltage should not be zero nor equal to leakage ID */
if (vddgfx != 0 && vddgfx != virtual_voltage_id) {
data->vddcgfx_leakage.actual_voltage[data->vddcgfx_leakage.count] = vddgfx;
data->vddcgfx_leakage.leakage_id[data->vddcgfx_leakage.count] = virtual_voltage_id;
data->vddcgfx_leakage.count++;
}
} else {
printk("Error retrieving EVV voltage value!\n");
}
}
} else {
@ -452,19 +453,20 @@ int tonga_get_evv_voltage(struct pp_hwmgr *hwmgr)
if (0 == tonga_get_sclk_for_voltage_evv(hwmgr,
pptable_info->vddc_lookup_table,
virtual_voltage_id, &sclk)) {
PP_ASSERT_WITH_CODE(0 == atomctrl_get_voltage_evv_on_sclk
(hwmgr, VOLTAGE_TYPE_VDDC, sclk,
virtual_voltage_id, &vddc),
"Error retrieving EVV voltage value!", continue);
if (0 == atomctrl_get_voltage_evv_on_sclk
(hwmgr, VOLTAGE_TYPE_VDDC, sclk,
virtual_voltage_id, &vddc)) {
/* need to make sure vddc is less than 2v or else, it could burn the ASIC. */
PP_ASSERT_WITH_CODE(vddc < 2000, "Invalid VDDC value!", return -1);
/* need to make sure vddc is less than 2v or else, it could burn the ASIC. */
PP_ASSERT_WITH_CODE(vddc < 2000, "Invalid VDDC value!", return -1);
/* the voltage should not be zero nor equal to leakage ID */
if (vddc != 0 && vddc != virtual_voltage_id) {
data->vddc_leakage.actual_voltage[data->vddc_leakage.count] = vddc;
data->vddc_leakage.leakage_id[data->vddc_leakage.count] = virtual_voltage_id;
data->vddc_leakage.count++;
/* the voltage should not be zero nor equal to leakage ID */
if (vddc != 0 && vddc != virtual_voltage_id) {
data->vddc_leakage.actual_voltage[data->vddc_leakage.count] = vddc;
data->vddc_leakage.leakage_id[data->vddc_leakage.count] = virtual_voltage_id;
data->vddc_leakage.count++;
}
} else {
printk("Error retrieving EVV voltage value!\n");
}
}
}