diff options
| author | Eric Huang <JinHuiEric.Huang@amd.com> | 2017-11-17 11:21:02 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-05-15 13:44:03 -0500 |
| commit | 4eeed17e713b9e6494a08ab37623283723596b5a (patch) | |
| tree | 8eabf59108d34586454b946e8d13bd2dcae72639 /drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c | |
| parent | ee38fbf3bfb58c427dc3670a70cc6df4ebe1c785 (diff) | |
drm/amd/powerplay: update ppatomctrl.c (v2)
used for calculating memory clocks in powerplay.
v2: handle endian swapping of atom data (Alex)
Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c | 31 |
1 files changed, 31 insertions, 0 deletions
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) |