From: Eric Huang <JinHuiEric.Huang@xxxxxxx>
used for calculating memory clocks in powerplay.
v2: handle endian swapping of atom data (Alex)
Signed-off-by: Eric Huang <JinHuiEric.Huang at amd.com>
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c | 31 ++++++++++++++++++++++++
drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.h | 10 ++++++++
2 files changed, 41 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c b/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c
index d58be7eb8256..cf99c5eaf080 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c
@@ -23,6 +23,7 @@
#include "pp_debug.h"
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/delay.h>
#include "atom.h"
#include "ppatomctrl.h"
#include "atombios.h"
@@ -314,6 +315,36 @@ int atomctrl_get_memory_pll_dividers_vi(struct pp_hwmgr *hwmgr,
return result;
}
+int atomctrl_get_memory_pll_dividers_ai(struct pp_hwmgr *hwmgr,
+ uint32_t clock_value,
+ pp_atomctrl_memory_clock_param_ai *mpll_param)
+{
+ struct amdgpu_device *adev = hwmgr->adev;
+ COMPUTE_MEMORY_CLOCK_PARAM_PARAMETERS_V2_3 mpll_parameters = {0};
+ int result;
+
+ mpll_parameters.ulClock.ulClock = cpu_to_le32(clock_value);
+
+ result = amdgpu_atom_execute_table(adev->mode_info.atom_context,
+ GetIndexIntoMasterTable(COMMAND, ComputeMemoryClockParam),
+ (uint32_t *)&mpll_parameters);
+
+ /* VEGAM's mpll takes sometime to finish computing */
+ udelay(10);
+
+ if (!result) {
+ mpll_param->ulMclk_fcw_int =
+ le16_to_cpu(mpll_parameters.usMclk_fcw_int);
+ mpll_param->ulMclk_fcw_frac =
+ le16_to_cpu(mpll_parameters.usMclk_fcw_frac);
+ mpll_param->ulClock =
+ le32_to_cpu(mpll_parameters.ulClock.ulClock);
+ mpll_param->ulPostDiv = mpll_parameters.ulClock.ucPostDiv;
+ }
+
+ return result;
+}
+
int atomctrl_get_engine_pll_dividers_kong(struct pp_hwmgr *hwmgr,
uint32_t clock_value,
pp_atomctrl_clock_dividers_kong *dividers)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.h b/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.h
index e1b5d6b0b548..3ee54f182943 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.h
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.h
@@ -146,6 +146,14 @@ struct pp_atomctrl_memory_clock_param {
};
typedef struct pp_atomctrl_memory_clock_param pp_atomctrl_memory_clock_param;
+struct pp_atomctrl_memory_clock_param_ai {
+ uint32_t ulClock;
+ uint32_t ulPostDiv;
+ uint16_t ulMclk_fcw_frac;
+ uint16_t ulMclk_fcw_int;
+};
+typedef struct pp_atomctrl_memory_clock_param_ai pp_atomctrl_memory_clock_param_ai;
+
struct pp_atomctrl_internal_ss_info {
uint32_t speed_spectrum_percentage; /* in 1/100 percentage */
uint32_t speed_spectrum_rate; /* in KHz */
@@ -295,6 +303,8 @@ extern bool atomctrl_is_voltage_controlled_by_gpio_v3(struct pp_hwmgr *hwmgr, ui
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_memory_pll_dividers_ai(struct pp_hwmgr *hwmgr,
+ uint32_t clock_value, pp_atomctrl_memory_clock_param_ai *mpll_param);
extern int atomctrl_get_engine_pll_dividers_kong(struct pp_hwmgr *hwmgr,
uint32_t clock_value,
pp_atomctrl_clock_dividers_kong *dividers);
--
2.13.6
