drm/amd/powerplay: add atomctrl function to calculate CZ sclk dividers
authorAlex Deucher <alexander.deucher@amd.com>
Sat, 14 Nov 2015 03:00:01 +0000 (22:00 -0500)
committerAlex Deucher <alexander.deucher@amd.com>
Mon, 21 Dec 2015 21:42:37 +0000 (16:42 -0500)
Use atombios to calculate the values.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c
drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.h

index 8b47ea0..ea87c90 100644 (file)
@@ -313,6 +313,28 @@ int atomctrl_get_memory_pll_dividers_vi(struct pp_hwmgr *hwmgr,
        return result;
 }
 
+int atomctrl_get_engine_pll_dividers_kong(struct pp_hwmgr *hwmgr,
+                                         uint32_t clock_value,
+                                         pp_atomctrl_clock_dividers_kong *dividers)
+{
+       COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V4 pll_parameters;
+       int result;
+
+       pll_parameters.ulClock = clock_value;
+
+       result = cgs_atom_exec_cmd_table
+               (hwmgr->device,
+                GetIndexIntoMasterTable(COMMAND, ComputeMemoryEnginePLL),
+                &pll_parameters);
+
+       if (0 == result) {
+               dividers->pll_post_divider = pll_parameters.ucPostDiv;
+               dividers->real_clock = pll_parameters.ulClock;
+       }
+
+       return result;
+}
+
 int atomctrl_get_engine_pll_dividers_vi(
                struct pp_hwmgr *hwmgr,
                uint32_t clock_value,
index b5ba371..627420b 100644 (file)
@@ -233,6 +233,9 @@ extern bool atomctrl_is_voltage_controled_by_gpio_v3(struct pp_hwmgr *hwmgr, uin
 extern int atomctrl_get_voltage_table_v3(struct pp_hwmgr *hwmgr, uint8_t voltage_type, uint8_t voltage_mode, pp_atomctrl_voltage_table *voltage_table);
 extern int atomctrl_get_memory_pll_dividers_vi(struct pp_hwmgr *hwmgr,
                uint32_t clock_value, pp_atomctrl_memory_clock_param *mpll_param);
+extern int atomctrl_get_engine_pll_dividers_kong(struct pp_hwmgr *hwmgr,
+                                                uint32_t clock_value,
+                                                pp_atomctrl_clock_dividers_kong *dividers);
 extern int atomctrl_read_efuse(void *device, uint16_t start_index,
                uint16_t end_index, uint32_t mask, uint32_t *efuse);
 extern int atomctrl_calculate_voltage_evv_on_sclk(struct pp_hwmgr *hwmgr, uint8_t voltage_type,