From: Ville Syrjälä Date: Tue, 25 Feb 2020 17:11:12 +0000 (+0200) Subject: drm/i915: Unify the low level dbuf code X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=56f48c1d44f6b884eed2ef8fdf5172bc295ff973;p=kernel.git drm/i915: Unify the low level dbuf code The low level dbuf slice code is rather inconsitent with its functiona naming and organization. Make it more consistent. Also share the enable/disable functions between all platforms since the same code works just fine for all of them. Cc: Stanislav Lisovskiy Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20200225171125.28885-8-ville.syrjala@linux.intel.com Reviewed-by: Stanislav Lisovskiy --- diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index bf8fd2f626a01..5bb666615f758 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -15213,9 +15213,8 @@ static void icl_dbuf_slice_pre_update(struct intel_atomic_state *state) u8 required_slices = state->enabled_dbuf_slices_mask; u8 slices_union = hw_enabled_slices | required_slices; - /* If 2nd DBuf slice required, enable it here */ if (INTEL_GEN(dev_priv) >= 11 && slices_union != hw_enabled_slices) - icl_dbuf_slices_update(dev_priv, slices_union); + gen9_dbuf_slices_update(dev_priv, slices_union); } static void icl_dbuf_slice_post_update(struct intel_atomic_state *state) @@ -15224,9 +15223,8 @@ static void icl_dbuf_slice_post_update(struct intel_atomic_state *state) u8 hw_enabled_slices = dev_priv->enabled_dbuf_slices_mask; u8 required_slices = state->enabled_dbuf_slices_mask; - /* If 2nd DBuf slice is no more required disable it */ if (INTEL_GEN(dev_priv) >= 11 && required_slices != hw_enabled_slices) - icl_dbuf_slices_update(dev_priv, required_slices); + gen9_dbuf_slices_update(dev_priv, required_slices); } static void skl_commit_modeset_enables(struct intel_atomic_state *state) diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c index f4734713643df..a3e581947bec1 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power.c +++ b/drivers/gpu/drm/i915/display/intel_display_power.c @@ -4491,15 +4491,18 @@ static void intel_power_domains_sync_hw(struct drm_i915_private *dev_priv) mutex_unlock(&power_domains->lock); } -static void intel_dbuf_slice_set(struct drm_i915_private *dev_priv, - enum dbuf_slice slice, bool enable) +static void gen9_dbuf_slice_set(struct drm_i915_private *dev_priv, + enum dbuf_slice slice, bool enable) { i915_reg_t reg = DBUF_CTL_S(slice); bool state; u32 val; val = intel_de_read(dev_priv, reg); - val = enable ? (val | DBUF_POWER_REQUEST) : (val & ~DBUF_POWER_REQUEST); + if (enable) + val |= DBUF_POWER_REQUEST; + else + val &= ~DBUF_POWER_REQUEST; intel_de_write(dev_priv, reg, val); intel_de_posting_read(dev_priv, reg); udelay(10); @@ -4510,18 +4513,8 @@ static void intel_dbuf_slice_set(struct drm_i915_private *dev_priv, slice, enable ? "enable" : "disable"); } -static void gen9_dbuf_enable(struct drm_i915_private *dev_priv) -{ - icl_dbuf_slices_update(dev_priv, BIT(DBUF_S1)); -} - -static void gen9_dbuf_disable(struct drm_i915_private *dev_priv) -{ - icl_dbuf_slices_update(dev_priv, 0); -} - -void icl_dbuf_slices_update(struct drm_i915_private *dev_priv, - u8 req_slices) +void gen9_dbuf_slices_update(struct drm_i915_private *dev_priv, + u8 req_slices) { int num_slices = INTEL_INFO(dev_priv)->num_supported_dbuf_slices; struct i915_power_domains *power_domains = &dev_priv->power_domains; @@ -4544,28 +4537,29 @@ void icl_dbuf_slices_update(struct drm_i915_private *dev_priv, mutex_lock(&power_domains->lock); for (slice = DBUF_S1; slice < num_slices; slice++) - intel_dbuf_slice_set(dev_priv, slice, - req_slices & BIT(slice)); + gen9_dbuf_slice_set(dev_priv, slice, req_slices & BIT(slice)); dev_priv->enabled_dbuf_slices_mask = req_slices; mutex_unlock(&power_domains->lock); } -static void icl_dbuf_enable(struct drm_i915_private *dev_priv) +static void gen9_dbuf_enable(struct drm_i915_private *dev_priv) { - skl_ddb_get_hw_state(dev_priv); + dev_priv->enabled_dbuf_slices_mask = + intel_enabled_dbuf_slices_mask(dev_priv); + /* * Just power up at least 1 slice, we will * figure out later which slices we have and what we need. */ - icl_dbuf_slices_update(dev_priv, dev_priv->enabled_dbuf_slices_mask | - BIT(DBUF_S1)); + gen9_dbuf_slices_update(dev_priv, BIT(DBUF_S1) | + dev_priv->enabled_dbuf_slices_mask); } -static void icl_dbuf_disable(struct drm_i915_private *dev_priv) +static void gen9_dbuf_disable(struct drm_i915_private *dev_priv) { - icl_dbuf_slices_update(dev_priv, 0); + gen9_dbuf_slices_update(dev_priv, 0); } static void icl_mbus_init(struct drm_i915_private *dev_priv) @@ -5125,7 +5119,7 @@ static void icl_display_core_init(struct drm_i915_private *dev_priv, intel_cdclk_init_hw(dev_priv); /* 5. Enable DBUF. */ - icl_dbuf_enable(dev_priv); + gen9_dbuf_enable(dev_priv); /* 6. Setup MBUS. */ icl_mbus_init(dev_priv); @@ -5148,7 +5142,7 @@ static void icl_display_core_uninit(struct drm_i915_private *dev_priv) /* 1. Disable all display engine functions -> aready done */ /* 2. Disable DBUF */ - icl_dbuf_disable(dev_priv); + gen9_dbuf_disable(dev_priv); /* 3. Disable CD clock */ intel_cdclk_uninit_hw(dev_priv); diff --git a/drivers/gpu/drm/i915/display/intel_display_power.h b/drivers/gpu/drm/i915/display/intel_display_power.h index 6c917699293b1..dc766af41e9bb 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power.h +++ b/drivers/gpu/drm/i915/display/intel_display_power.h @@ -316,13 +316,13 @@ enum dbuf_slice { DBUF_S2, }; +void gen9_dbuf_slices_update(struct drm_i915_private *dev_priv, + u8 req_slices); + #define with_intel_display_power(i915, domain, wf) \ for ((wf) = intel_display_power_get((i915), (domain)); (wf); \ intel_display_power_put_async((i915), (domain), (wf)), (wf) = 0) -void icl_dbuf_slices_update(struct drm_i915_private *dev_priv, - u8 req_slices); - void chv_phy_powergate_lanes(struct intel_encoder *encoder, bool override, unsigned int mask); bool chv_phy_powergate_ch(struct drm_i915_private *dev_priv, enum dpio_phy phy,