[PATCH 10/13] drm/amd/powerplay: apply clocks adjust rules on power state change
Alex Deucher
alexdeucher at gmail.com
Tue Jun 19 15:16:44 UTC 2018
On Tue, Jun 19, 2018 at 3:39 AM, Evan Quan <evan.quan at amd.com> wrote:
> The clocks hard/soft min/max clock levels will be adjusted
> correspondingly.
Also note that this add the apply_clocks_adjust_rules callback which
is used to validate the clock settings on a power state change. One
other comment below.
>
> Change-Id: I2c4b6cd6756d40a28933f0c26b9e1a3d5078bab8
> Signed-off-by: Evan Quan <evan.quan at amd.com>
> ---
> drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c | 162 +++++++++++++++++++++
> drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.h | 2 +
> 2 files changed, 164 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c
> index a227ace..26bdfff 100644
> --- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c
> +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c
> @@ -1950,6 +1950,166 @@ static int vega12_print_clock_levels(struct pp_hwmgr *hwmgr,
> return size;
> }
>
> +static int vega12_apply_clocks_adjust_rules(struct pp_hwmgr *hwmgr)
> +{
> + struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend);
> + struct vega12_single_dpm_table *dpm_table;
> + bool vblank_too_short = false;
> + bool disable_mclk_switching;
> + uint32_t i, latency;
> +
> + disable_mclk_switching = ((1 < hwmgr->display_config->num_display) &&
> + !hwmgr->display_config->multi_monitor_in_sync) ||
> + vblank_too_short;
> + latency = hwmgr->display_config->dce_tolerable_mclk_in_active_latency;
> +
> + /* gfxclk */
> + dpm_table = &(data->dpm_table.gfx_table);
> + dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[0].value;
> + dpm_table->dpm_state.soft_max_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> + dpm_table->dpm_state.hard_min_level = dpm_table->dpm_levels[0].value;
> + dpm_table->dpm_state.hard_max_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> +
> + if (PP_CAP(PHM_PlatformCaps_UMDPState)) {
> + if (VEGA12_UMD_PSTATE_GFXCLK_LEVEL < dpm_table->count) {
> + dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[VEGA12_UMD_PSTATE_GFXCLK_LEVEL].value;
> + dpm_table->dpm_state.soft_max_level = dpm_table->dpm_levels[VEGA12_UMD_PSTATE_GFXCLK_LEVEL].value;
> + }
> +
> + if (hwmgr->dpm_level == AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK) {
> + dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[0].value;
> + dpm_table->dpm_state.soft_max_level = dpm_table->dpm_levels[0].value;
> + }
> +
> + if (hwmgr->dpm_level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK) {
> + dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> + dpm_table->dpm_state.soft_max_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> + }
> + }
> +
> + /* memclk */
> + dpm_table = &(data->dpm_table.mem_table);
> + dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[0].value;
> + dpm_table->dpm_state.soft_max_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> + dpm_table->dpm_state.hard_min_level = dpm_table->dpm_levels[0].value;
> + dpm_table->dpm_state.hard_max_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> +
> + if (PP_CAP(PHM_PlatformCaps_UMDPState)) {
> + if (VEGA12_UMD_PSTATE_MCLK_LEVEL < dpm_table->count) {
> + dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[VEGA12_UMD_PSTATE_MCLK_LEVEL].value;
> + dpm_table->dpm_state.soft_max_level = dpm_table->dpm_levels[VEGA12_UMD_PSTATE_MCLK_LEVEL].value;
> + }
> +
> + if (hwmgr->dpm_level == AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK) {
> + dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[0].value;
> + dpm_table->dpm_state.soft_max_level = dpm_table->dpm_levels[0].value;
> + }
> +
> + if (hwmgr->dpm_level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK) {
> + dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> + dpm_table->dpm_state.soft_max_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> + }
> + }
> +
> + /* honour DAL's UCLK Hardmin */
> + if (dpm_table->dpm_state.hard_min_level < (hwmgr->display_config->min_mem_set_clock / 100))
> + dpm_table->dpm_state.hard_min_level = hwmgr->display_config->min_mem_set_clock / 100;
> +
Didn't you just remove the uclk hard min setting in a previous patch?
> + /* Hardmin is dependent on displayconfig */
> + if (disable_mclk_switching) {
> + dpm_table->dpm_state.hard_min_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> + for (i = 0; i < data->mclk_latency_table.count - 1; i++) {
> + if (data->mclk_latency_table.entries[i].latency <= latency) {
> + if (dpm_table->dpm_levels[i].value >= (hwmgr->display_config->min_mem_set_clock / 100)) {
> + dpm_table->dpm_state.hard_min_level = dpm_table->dpm_levels[i].value;
> + break;
> + }
> + }
> + }
> + }
> +
> + if (hwmgr->display_config->nb_pstate_switch_disable)
> + dpm_table->dpm_state.hard_min_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> +
> + /* vclk */
> + dpm_table = &(data->dpm_table.vclk_table);
> + dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[0].value;
> + dpm_table->dpm_state.soft_max_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> + dpm_table->dpm_state.hard_min_level = dpm_table->dpm_levels[0].value;
> + dpm_table->dpm_state.hard_max_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> +
> + if (PP_CAP(PHM_PlatformCaps_UMDPState)) {
> + if (VEGA12_UMD_PSTATE_UVDCLK_LEVEL < dpm_table->count) {
> + dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[VEGA12_UMD_PSTATE_UVDCLK_LEVEL].value;
> + dpm_table->dpm_state.soft_max_level = dpm_table->dpm_levels[VEGA12_UMD_PSTATE_UVDCLK_LEVEL].value;
> + }
> +
> + if (hwmgr->dpm_level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK) {
> + dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> + dpm_table->dpm_state.soft_max_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> + }
> + }
> +
> + /* dclk */
> + dpm_table = &(data->dpm_table.dclk_table);
> + dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[0].value;
> + dpm_table->dpm_state.soft_max_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> + dpm_table->dpm_state.hard_min_level = dpm_table->dpm_levels[0].value;
> + dpm_table->dpm_state.hard_max_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> +
> + if (PP_CAP(PHM_PlatformCaps_UMDPState)) {
> + if (VEGA12_UMD_PSTATE_UVDCLK_LEVEL < dpm_table->count) {
> + dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[VEGA12_UMD_PSTATE_UVDCLK_LEVEL].value;
> + dpm_table->dpm_state.soft_max_level = dpm_table->dpm_levels[VEGA12_UMD_PSTATE_UVDCLK_LEVEL].value;
> + }
> +
> + if (hwmgr->dpm_level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK) {
> + dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> + dpm_table->dpm_state.soft_max_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> + }
> + }
> +
> + /* socclk */
> + dpm_table = &(data->dpm_table.soc_table);
> + dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[0].value;
> + dpm_table->dpm_state.soft_max_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> + dpm_table->dpm_state.hard_min_level = dpm_table->dpm_levels[0].value;
> + dpm_table->dpm_state.hard_max_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> +
> + if (PP_CAP(PHM_PlatformCaps_UMDPState)) {
> + if (VEGA12_UMD_PSTATE_SOCCLK_LEVEL < dpm_table->count) {
> + dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[VEGA12_UMD_PSTATE_SOCCLK_LEVEL].value;
> + dpm_table->dpm_state.soft_max_level = dpm_table->dpm_levels[VEGA12_UMD_PSTATE_SOCCLK_LEVEL].value;
> + }
> +
> + if (hwmgr->dpm_level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK) {
> + dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> + dpm_table->dpm_state.soft_max_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> + }
> + }
> +
> + /* eclk */
> + dpm_table = &(data->dpm_table.eclk_table);
> + dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[0].value;
> + dpm_table->dpm_state.soft_max_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> + dpm_table->dpm_state.hard_min_level = dpm_table->dpm_levels[0].value;
> + dpm_table->dpm_state.hard_max_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> +
> + if (PP_CAP(PHM_PlatformCaps_UMDPState)) {
> + if (VEGA12_UMD_PSTATE_VCEMCLK_LEVEL < dpm_table->count) {
> + dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[VEGA12_UMD_PSTATE_VCEMCLK_LEVEL].value;
> + dpm_table->dpm_state.soft_max_level = dpm_table->dpm_levels[VEGA12_UMD_PSTATE_VCEMCLK_LEVEL].value;
> + }
> +
> + if (hwmgr->dpm_level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK) {
> + dpm_table->dpm_state.soft_min_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> + dpm_table->dpm_state.soft_max_level = dpm_table->dpm_levels[dpm_table->count - 1].value;
> + }
> + }
> +
> + return 0;
> +}
> +
> static int vega12_display_configuration_changed_task(struct pp_hwmgr *hwmgr)
> {
> struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend);
> @@ -2196,6 +2356,8 @@ static const struct pp_hwmgr_func vega12_hwmgr_funcs = {
> .display_clock_voltage_request = vega12_display_clock_voltage_request,
> .force_clock_level = vega12_force_clock_level,
> .print_clock_levels = vega12_print_clock_levels,
> + .apply_clocks_adjust_rules =
> + vega12_apply_clocks_adjust_rules,
> .display_config_changed = vega12_display_configuration_changed_task,
> .powergate_uvd = vega12_power_gate_uvd,
> .powergate_vce = vega12_power_gate_vce,
> diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.h b/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.h
> index e18c083..e17237c 100644
> --- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.h
> +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.h
> @@ -443,6 +443,8 @@ struct vega12_hwmgr {
> #define VEGA12_UMD_PSTATE_GFXCLK_LEVEL 0x3
> #define VEGA12_UMD_PSTATE_SOCCLK_LEVEL 0x3
> #define VEGA12_UMD_PSTATE_MCLK_LEVEL 0x2
> +#define VEGA12_UMD_PSTATE_UVDCLK_LEVEL 0x3
> +#define VEGA12_UMD_PSTATE_VCEMCLK_LEVEL 0x3
>
> int vega12_enable_disable_vce_dpm(struct pp_hwmgr *hwmgr, bool enable);
>
> --
> 2.7.4
>
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