diff options
| author | Matt Roper <matthew.d.roper@intel.com> | 2023-09-19 22:21:27 +0300 |
|---|---|---|
| committer | Lucas De Marchi <lucas.demarchi@intel.com> | 2023-09-21 18:18:07 +0300 |
| commit | 43e18b0a54d700fdcc746293a5697a2097ee23f5 (patch) | |
| tree | 1da4b4c2b2b5d7e4f2d87aadcd52c5d0772dd812 | |
| parent | c2d9d8e7ee157f0ef78bcf5c0df149a4a03ae1cd (diff) | |
| download | linux-43e18b0a54d700fdcc746293a5697a2097ee23f5.tar.xz | |
drm/i915/xe2lpd: Add DC state support
Xe2_LPD supports DC5, DC6, and DC9 (DC3CO no longer exists). The
overall programming and requirements to enter DC states are similar to
those of Xe_LPD+ although AUX transactions do not require DC5/DC6 exit
as they did previously.
Bspec: 68851, 68857, 68886, 69115
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230919192128.2045154-21-lucas.demarchi@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display_power.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display_power_map.c | 18 |
2 files changed, 21 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c index 889bb26009a2..e25785ae1c20 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power.c +++ b/drivers/gpu/drm/i915/display/intel_display_power.c @@ -943,7 +943,9 @@ static u32 get_allowed_dc_mask(const struct drm_i915_private *dev_priv, if (!HAS_DISPLAY(dev_priv)) return 0; - if (IS_DG2(dev_priv)) + if (DISPLAY_VER(dev_priv) >= 20) + max_dc = 2; + else if (IS_DG2(dev_priv)) max_dc = 1; else if (IS_DG1(dev_priv)) max_dc = 3; diff --git a/drivers/gpu/drm/i915/display/intel_display_power_map.c b/drivers/gpu/drm/i915/display/intel_display_power_map.c index 31c11586ede5..10948b3964ee 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power_map.c +++ b/drivers/gpu/drm/i915/display/intel_display_power_map.c @@ -1561,9 +1561,27 @@ static const struct i915_power_well_desc xe2lpd_power_wells_pica[] = { }, }; +I915_DECL_PW_DOMAINS(xe2lpd_pwdoms_dc_off, + POWER_DOMAIN_DC_OFF, + XELPD_PW_C_POWER_DOMAINS, + XELPD_PW_D_POWER_DOMAINS, + POWER_DOMAIN_AUDIO_MMIO, + POWER_DOMAIN_INIT); + +static const struct i915_power_well_desc xe2lpd_power_wells_dcoff[] = { + { + .instances = &I915_PW_INSTANCES( + I915_PW("DC_off", &xe2lpd_pwdoms_dc_off, + .id = SKL_DISP_DC_OFF), + ), + .ops = &gen9_dc_off_power_well_ops, + }, +}; + static const struct i915_power_well_desc_list xe2lpd_power_wells[] = { I915_PW_DESCRIPTORS(i9xx_power_wells_always_on), I915_PW_DESCRIPTORS(icl_power_wells_pw_1), + I915_PW_DESCRIPTORS(xe2lpd_power_wells_dcoff), I915_PW_DESCRIPTORS(xelpdp_power_wells_main), I915_PW_DESCRIPTORS(xe2lpd_power_wells_pica), }; |