From: Ander Conselvan de Oliveira Date: Tue, 8 Mar 2016 15:46:21 +0000 (+0200) Subject: drm/i915: Use a table to initilize shared dplls X-Git-Tag: v4.7-rc1~77^2~66^2~123 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2edd6443e3d03267bfc63071a86332a1711dc1bc;p=platform%2Fkernel%2Flinux-exynos.git drm/i915: Use a table to initilize shared dplls Use a table to store the per-platform shared dpll information in one place. This way, there is no need for platform specific init funtions. Signed-off-by: Ander Conselvan de Oliveira Reviewed-by: Maarten Lankhorst Link: http://patchwork.freedesktop.org/patch/msgid/1457451987-17466-8-git-send-email-ander.conselvan.de.oliveira@intel.com --- diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 579da41..5852a1a 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -9309,8 +9309,8 @@ static bool ironlake_get_pipe_config(struct intel_crtc *crtc, intel_get_shared_dpll_by_id(dev_priv, pll_id); pll = pipe_config->shared_dpll; - WARN_ON(!pll->get_hw_state(dev_priv, pll, - &pipe_config->dpll_hw_state)); + WARN_ON(!pll->funcs.get_hw_state(dev_priv, pll, + &pipe_config->dpll_hw_state)); tmp = pipe_config->dpll_hw_state.dpll; pipe_config->pixel_multiplier = @@ -9856,8 +9856,8 @@ static void haswell_get_ddi_port_state(struct intel_crtc *crtc, pll = pipe_config->shared_dpll; if (pll) { - WARN_ON(!pll->get_hw_state(dev_priv, pll, - &pipe_config->dpll_hw_state)); + WARN_ON(!pll->funcs.get_hw_state(dev_priv, pll, + &pipe_config->dpll_hw_state)); } /* @@ -12935,7 +12935,7 @@ check_shared_dpll_state(struct drm_device *dev) DRM_DEBUG_KMS("%s\n", pll->name); - active = pll->get_hw_state(dev_priv, pll, &dpll_hw_state); + active = pll->funcs.get_hw_state(dev_priv, pll, &dpll_hw_state); I915_STATE_WARN(pll->active > hweight32(pll->config.crtc_mask), "more active pll users than references: %i vs %i\n", @@ -15686,8 +15686,8 @@ static void intel_modeset_readout_hw_state(struct drm_device *dev) for (i = 0; i < dev_priv->num_shared_dpll; i++) { struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i]; - pll->on = pll->get_hw_state(dev_priv, pll, - &pll->config.hw_state); + pll->on = pll->funcs.get_hw_state(dev_priv, pll, + &pll->config.hw_state); pll->active = 0; pll->config.crtc_mask = 0; for_each_intel_crtc(dev, crtc) { @@ -15824,7 +15824,7 @@ intel_modeset_setup_hw_state(struct drm_device *dev) DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll->name); - pll->disable(dev_priv, pll); + pll->funcs.disable(dev_priv, pll); pll->on = false; } diff --git a/drivers/gpu/drm/i915/intel_dpll_mgr.c b/drivers/gpu/drm/i915/intel_dpll_mgr.c index 889ceed..e88dc46 100644 --- a/drivers/gpu/drm/i915/intel_dpll_mgr.c +++ b/drivers/gpu/drm/i915/intel_dpll_mgr.c @@ -74,7 +74,7 @@ void assert_shared_dpll(struct drm_i915_private *dev_priv, if (WARN(!pll, "asserting DPLL %s with no DPLL\n", onoff(state))) return; - cur_state = pll->get_hw_state(dev_priv, pll, &hw_state); + cur_state = pll->funcs.get_hw_state(dev_priv, pll, &hw_state); I915_STATE_WARN(cur_state != state, "%s assertion failure (expected %s, current %s)\n", pll->name, onoff(state), onoff(cur_state)); @@ -95,7 +95,7 @@ void intel_prepare_shared_dpll(struct intel_crtc *crtc) WARN_ON(pll->on); assert_shared_dpll_disabled(dev_priv, pll); - pll->mode_set(dev_priv, pll); + pll->funcs.mode_set(dev_priv, pll); } } @@ -133,7 +133,7 @@ void intel_enable_shared_dpll(struct intel_crtc *crtc) intel_display_power_get(dev_priv, POWER_DOMAIN_PLLS); DRM_DEBUG_KMS("enabling %s\n", pll->name); - pll->enable(dev_priv, pll); + pll->funcs.enable(dev_priv, pll); pll->on = true; } @@ -168,7 +168,7 @@ void intel_disable_shared_dpll(struct intel_crtc *crtc) return; DRM_DEBUG_KMS("disabling %s\n", pll->name); - pll->disable(dev_priv, pll); + pll->funcs.disable(dev_priv, pll); pll->on = false; intel_display_power_put(dev_priv, POWER_DOMAIN_PLLS); @@ -398,29 +398,13 @@ static void ibx_pch_dpll_disable(struct drm_i915_private *dev_priv, udelay(200); } -static char *ibx_pch_dpll_names[] = { - "PCH DPLL A", - "PCH DPLL B", +static const struct intel_shared_dpll_funcs ibx_pch_dpll_funcs = { + .mode_set = ibx_pch_dpll_mode_set, + .enable = ibx_pch_dpll_enable, + .disable = ibx_pch_dpll_disable, + .get_hw_state = ibx_pch_dpll_get_hw_state, }; -static void ibx_pch_dpll_init(struct drm_device *dev) -{ - struct drm_i915_private *dev_priv = dev->dev_private; - int i; - - dev_priv->num_shared_dpll = 2; - - for (i = 0; i < dev_priv->num_shared_dpll; i++) { - dev_priv->shared_dplls[i].id = i; - dev_priv->shared_dplls[i].name = ibx_pch_dpll_names[i]; - dev_priv->shared_dplls[i].mode_set = ibx_pch_dpll_mode_set; - dev_priv->shared_dplls[i].enable = ibx_pch_dpll_enable; - dev_priv->shared_dplls[i].disable = ibx_pch_dpll_disable; - dev_priv->shared_dplls[i].get_hw_state = - ibx_pch_dpll_get_hw_state; - } -} - static void hsw_ddi_wrpll_enable(struct drm_i915_private *dev_priv, struct intel_shared_dpll *pll) { @@ -492,40 +476,16 @@ static bool hsw_ddi_spll_get_hw_state(struct drm_i915_private *dev_priv, } -static const char * const hsw_ddi_pll_names[] = { - "WRPLL 1", - "WRPLL 2", - "SPLL" +static const struct intel_shared_dpll_funcs hsw_ddi_wrpll_funcs = { + .enable = hsw_ddi_wrpll_enable, + .disable = hsw_ddi_wrpll_disable, + .get_hw_state = hsw_ddi_wrpll_get_hw_state, }; -static void hsw_shared_dplls_init(struct drm_i915_private *dev_priv) -{ - int i; - - dev_priv->num_shared_dpll = 3; - - for (i = 0; i < 2; i++) { - dev_priv->shared_dplls[i].id = i; - dev_priv->shared_dplls[i].name = hsw_ddi_pll_names[i]; - dev_priv->shared_dplls[i].disable = hsw_ddi_wrpll_disable; - dev_priv->shared_dplls[i].enable = hsw_ddi_wrpll_enable; - dev_priv->shared_dplls[i].get_hw_state = - hsw_ddi_wrpll_get_hw_state; - } - - /* SPLL is special, but needs to be initialized anyway.. */ - dev_priv->shared_dplls[i].id = i; - dev_priv->shared_dplls[i].name = hsw_ddi_pll_names[i]; - dev_priv->shared_dplls[i].disable = hsw_ddi_spll_disable; - dev_priv->shared_dplls[i].enable = hsw_ddi_spll_enable; - dev_priv->shared_dplls[i].get_hw_state = hsw_ddi_spll_get_hw_state; - -} - -static const char * const skl_ddi_pll_names[] = { - "DPLL 1", - "DPLL 2", - "DPLL 3", +static const struct intel_shared_dpll_funcs hsw_ddi_spll_funcs = { + .enable = hsw_ddi_spll_enable, + .disable = hsw_ddi_spll_disable, + .get_hw_state = hsw_ddi_spll_get_hw_state, }; struct skl_dpll_regs { @@ -634,26 +594,10 @@ out: return ret; } -static void skl_shared_dplls_init(struct drm_i915_private *dev_priv) -{ - int i; - - dev_priv->num_shared_dpll = 3; - - for (i = 0; i < dev_priv->num_shared_dpll; i++) { - dev_priv->shared_dplls[i].id = i; - dev_priv->shared_dplls[i].name = skl_ddi_pll_names[i]; - dev_priv->shared_dplls[i].disable = skl_ddi_pll_disable; - dev_priv->shared_dplls[i].enable = skl_ddi_pll_enable; - dev_priv->shared_dplls[i].get_hw_state = - skl_ddi_pll_get_hw_state; - } -} - -static const char * const bxt_ddi_pll_names[] = { - "PORT PLL A", - "PORT PLL B", - "PORT PLL C", +static const struct intel_shared_dpll_funcs skl_ddi_pll_funcs = { + .enable = skl_ddi_pll_enable, + .disable = skl_ddi_pll_disable, + .get_hw_state = skl_ddi_pll_get_hw_state, }; static void bxt_ddi_pll_enable(struct drm_i915_private *dev_priv, @@ -838,34 +782,17 @@ out: return ret; } -static void bxt_shared_dplls_init(struct drm_i915_private *dev_priv) -{ - int i; - - dev_priv->num_shared_dpll = 3; - - for (i = 0; i < dev_priv->num_shared_dpll; i++) { - dev_priv->shared_dplls[i].id = i; - dev_priv->shared_dplls[i].name = bxt_ddi_pll_names[i]; - dev_priv->shared_dplls[i].disable = bxt_ddi_pll_disable; - dev_priv->shared_dplls[i].enable = bxt_ddi_pll_enable; - dev_priv->shared_dplls[i].get_hw_state = - bxt_ddi_pll_get_hw_state; - } -} +static const struct intel_shared_dpll_funcs bxt_ddi_pll_funcs = { + .enable = bxt_ddi_pll_enable, + .disable = bxt_ddi_pll_disable, + .get_hw_state = bxt_ddi_pll_get_hw_state, +}; static void intel_ddi_pll_init(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; uint32_t val = I915_READ(LCPLL_CTL); - if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) - skl_shared_dplls_init(dev_priv); - else if (IS_BROXTON(dev)) - bxt_shared_dplls_init(dev_priv); - else - hsw_shared_dplls_init(dev_priv); - if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) { int cdclk_freq; @@ -893,16 +820,72 @@ static void intel_ddi_pll_init(struct drm_device *dev) } } +struct dpll_info { + const char *name; + const int id; + const struct intel_shared_dpll_funcs *funcs; +}; + +static const struct dpll_info pch_plls[] = { + { "PCH DPLL A", DPLL_ID_PCH_PLL_A, &ibx_pch_dpll_funcs }, + { "PCH DPLL B", DPLL_ID_PCH_PLL_B, &ibx_pch_dpll_funcs }, + { NULL, -1, NULL }, +}; + +static const struct dpll_info hsw_plls[] = { + { "WRPLL 1", DPLL_ID_WRPLL1, &hsw_ddi_wrpll_funcs }, + { "WRPLL 2", DPLL_ID_WRPLL2, &hsw_ddi_wrpll_funcs }, + { "SPLL", DPLL_ID_SPLL, &hsw_ddi_spll_funcs }, + { NULL, -1, NULL, }, +}; + +static const struct dpll_info skl_plls[] = { + { "DPPL 1", DPLL_ID_SKL_DPLL1, &skl_ddi_pll_funcs }, + { "DPPL 2", DPLL_ID_SKL_DPLL2, &skl_ddi_pll_funcs }, + { "DPPL 3", DPLL_ID_SKL_DPLL3, &skl_ddi_pll_funcs }, + { NULL, -1, NULL, }, +}; + +static const struct dpll_info bxt_plls[] = { + { "PORT PLL A", 0, &bxt_ddi_pll_funcs }, + { "PORT PLL B", 1, &bxt_ddi_pll_funcs }, + { "PORT PLL C", 2, &bxt_ddi_pll_funcs }, + { NULL, -1, NULL, }, +}; + void intel_shared_dpll_init(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; + const struct dpll_info *dpll_info = NULL; + int i; - if (HAS_DDI(dev)) - intel_ddi_pll_init(dev); + if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) + dpll_info = skl_plls; + else if IS_BROXTON(dev) + dpll_info = bxt_plls; + else if (HAS_DDI(dev)) + dpll_info = hsw_plls; else if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) - ibx_pch_dpll_init(dev); - else + dpll_info = pch_plls; + + if (!dpll_info) { dev_priv->num_shared_dpll = 0; + return; + } + + for (i = 0; dpll_info[i].id >= 0; i++) { + WARN_ON(i != dpll_info[i].id); + + dev_priv->shared_dplls[i].id = dpll_info[i].id; + dev_priv->shared_dplls[i].name = dpll_info[i].name; + dev_priv->shared_dplls[i].funcs = *dpll_info[i].funcs; + } + + dev_priv->num_shared_dpll = i; BUG_ON(dev_priv->num_shared_dpll > I915_NUM_PLLS); + + /* FIXME: Move this to a more suitable place */ + if (HAS_DDI(dev)) + intel_ddi_pll_init(dev); } diff --git a/drivers/gpu/drm/i915/intel_dpll_mgr.h b/drivers/gpu/drm/i915/intel_dpll_mgr.h index a2ecf80..8be2478 100644 --- a/drivers/gpu/drm/i915/intel_dpll_mgr.h +++ b/drivers/gpu/drm/i915/intel_dpll_mgr.h @@ -28,6 +28,7 @@ struct drm_i915_private; struct intel_crtc; struct intel_crtc_state; +struct intel_shared_dpll; enum intel_dpll_id { DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */ @@ -78,14 +79,7 @@ struct intel_shared_dpll_config { struct intel_dpll_hw_state hw_state; }; -struct intel_shared_dpll { - struct intel_shared_dpll_config config; - - int active; /* count of number of active CRTCs (i.e. DPMS on) */ - bool on; /* is the PLL actually active? Disabled during modeset */ - const char *name; - /* should match the index in the dev_priv->shared_dplls array */ - enum intel_dpll_id id; +struct intel_shared_dpll_funcs { /* The mode_set hook is optional and should be used together with the * intel_prepare_shared_dpll function. */ void (*mode_set)(struct drm_i915_private *dev_priv, @@ -99,6 +93,18 @@ struct intel_shared_dpll { struct intel_dpll_hw_state *hw_state); }; +struct intel_shared_dpll { + struct intel_shared_dpll_config config; + + int active; /* count of number of active CRTCs (i.e. DPMS on) */ + bool on; /* is the PLL actually active? Disabled during modeset */ + const char *name; + /* should match the index in the dev_priv->shared_dplls array */ + enum intel_dpll_id id; + + struct intel_shared_dpll_funcs funcs; +}; + #define SKL_DPLL0 0 #define SKL_DPLL1 1 #define SKL_DPLL2 2