This patch adds a display_state pointer to drm_i915_private and moves
the current pll config into it.

Signed-off-by: Ander Conselvan de Oliveira 
<ander.conselvan.de.olive...@intel.com>
---
 drivers/gpu/drm/i915/i915_debugfs.c  | 15 ++++---
 drivers/gpu/drm/i915/i915_drv.h      |  4 +-
 drivers/gpu/drm/i915/intel_ddi.c     | 13 ++++--
 drivers/gpu/drm/i915/intel_display.c | 86 +++++++++++++++++++++++++-----------
 4 files changed, 79 insertions(+), 39 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c 
b/drivers/gpu/drm/i915/i915_debugfs.c
index 3b332a4..eb18a99 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2765,17 +2765,20 @@ static int i915_shared_dplls_info(struct seq_file *m, 
void *unused)
        drm_modeset_lock_all(dev);
        for (i = 0; i < dev_priv->num_shared_dpll; i++) {
                struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
+               struct intel_shared_dpll_config *pll_config;
+
+               pll_config = &dev_priv->display_state->shared_dpll[i];
 
                seq_printf(m, "DPLL%i: %s, id: %i\n", i, pll->name, pll->id);
                seq_printf(m, " crtc_mask: 0x%08x, active: %d, on: %s\n",
-                          pll->config.crtc_mask, pll->active, yesno(pll->on));
+                          pll_config->crtc_mask, pll->active, yesno(pll->on));
                seq_printf(m, " tracked hardware state:\n");
-               seq_printf(m, " dpll:    0x%08x\n", pll->config.hw_state.dpll);
+               seq_printf(m, " dpll:    0x%08x\n", pll_config->hw_state.dpll);
                seq_printf(m, " dpll_md: 0x%08x\n",
-                          pll->config.hw_state.dpll_md);
-               seq_printf(m, " fp0:     0x%08x\n", pll->config.hw_state.fp0);
-               seq_printf(m, " fp1:     0x%08x\n", pll->config.hw_state.fp1);
-               seq_printf(m, " wrpll:   0x%08x\n", pll->config.hw_state.wrpll);
+                          pll_config->hw_state.dpll_md);
+               seq_printf(m, " fp0:     0x%08x\n", pll_config->hw_state.fp0);
+               seq_printf(m, " fp1:     0x%08x\n", pll_config->hw_state.fp1);
+               seq_printf(m, " wrpll:   0x%08x\n", pll_config->hw_state.wrpll);
        }
        drm_modeset_unlock_all(dev);
 
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 862edc4..132eb7b 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -296,8 +296,6 @@ struct intel_shared_dpll_config {
 };
 
 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;
@@ -1784,6 +1782,8 @@ struct drm_i915_private {
        struct intel_pipe_crc pipe_crc[I915_MAX_PIPES];
 #endif
 
+       struct intel_atomic_state *display_state;
+
        int num_shared_dpll;
        struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
        int dpio_phy_iosf_port[I915_NUM_PHYS_VLV];
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 1cd541f..ff2197c 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1747,7 +1747,10 @@ int intel_ddi_get_cdclk_freq(struct drm_i915_private 
*dev_priv)
 static void hsw_ddi_pll_enable(struct drm_i915_private *dev_priv,
                               struct intel_shared_dpll *pll)
 {
-       I915_WRITE(WRPLL_CTL(pll->id), pll->config.hw_state.wrpll);
+       struct intel_shared_dpll_config *pll_config =
+               &dev_priv->display_state->shared_dpll[pll->id];
+
+       I915_WRITE(WRPLL_CTL(pll->id), pll_config->hw_state.wrpll);
        POSTING_READ(WRPLL_CTL(pll->id));
        udelay(20);
 }
@@ -1836,6 +1839,8 @@ static void skl_ddi_pll_enable(struct drm_i915_private 
*dev_priv,
        uint32_t val;
        unsigned int dpll;
        const struct skl_dpll_regs *regs = skl_dpll_regs;
+       struct intel_shared_dpll_config *pll_config =
+               &dev_priv->display_state->shared_dpll[pll->id];
 
        /* DPLL0 is not part of the shared DPLLs, so pll->id is 0 for DPLL1 */
        dpll = pll->id + 1;
@@ -1844,13 +1849,13 @@ static void skl_ddi_pll_enable(struct drm_i915_private 
*dev_priv,
 
        val &= ~(DPLL_CTRL1_HDMI_MODE(dpll) | DPLL_CTRL1_SSC(dpll) |
                 DPLL_CRTL1_LINK_RATE_MASK(dpll));
-       val |= pll->config.hw_state.ctrl1 << (dpll * 6);
+       val |= pll_config->hw_state.ctrl1 << (dpll * 6);
 
        I915_WRITE(DPLL_CTRL1, val);
        POSTING_READ(DPLL_CTRL1);
 
-       I915_WRITE(regs[pll->id].cfgcr1, pll->config.hw_state.cfgcr1);
-       I915_WRITE(regs[pll->id].cfgcr2, pll->config.hw_state.cfgcr2);
+       I915_WRITE(regs[pll->id].cfgcr1, pll_config->hw_state.cfgcr1);
+       I915_WRITE(regs[pll->id].cfgcr2, pll_config->hw_state.cfgcr2);
        POSTING_READ(regs[pll->id].cfgcr1);
        POSTING_READ(regs[pll->id].cfgcr2);
 
diff --git a/drivers/gpu/drm/i915/intel_display.c 
b/drivers/gpu/drm/i915/intel_display.c
index 159e6c8..fecffbb 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1778,11 +1778,13 @@ static void intel_prepare_shared_dpll(struct intel_crtc 
*crtc)
        struct drm_device *dev = crtc->base.dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
+       struct intel_shared_dpll_config *pll_config =
+               &dev_priv->display_state->shared_dpll[pll->id];
 
        if (WARN_ON(pll == NULL))
                return;
 
-       WARN_ON(!pll->config.crtc_mask);
+       WARN_ON(!pll_config->crtc_mask);
        if (pll->active == 0) {
                DRM_DEBUG_DRIVER("setting up %s\n", pll->name);
                WARN_ON(pll->on);
@@ -1805,11 +1807,13 @@ static void intel_enable_shared_dpll(struct intel_crtc 
*crtc)
        struct drm_device *dev = crtc->base.dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
+       struct intel_shared_dpll_config *pll_config =
+               &dev_priv->display_state->shared_dpll[pll->id];
 
        if (WARN_ON(pll == NULL))
                return;
 
-       if (WARN_ON(pll->config.crtc_mask == 0))
+       if (WARN_ON(pll_config->crtc_mask == 0))
                return;
 
        DRM_DEBUG_KMS("enable %s (active %d, on? %d) for crtc %d\n",
@@ -1835,13 +1839,15 @@ static void intel_disable_shared_dpll(struct intel_crtc 
*crtc)
        struct drm_device *dev = crtc->base.dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
+       struct intel_shared_dpll_config *pll_config =
+               &dev_priv->display_state->shared_dpll[pll->id];
 
        /* PCH only available on ILK+ */
        BUG_ON(INTEL_INFO(dev)->gen < 5);
        if (WARN_ON(pll == NULL))
               return;
 
-       if (WARN_ON(pll->config.crtc_mask == 0))
+       if (WARN_ON(pll_config->crtc_mask == 0))
                return;
 
        DRM_DEBUG_KMS("disable %s (active %d, on? %d) for crtc %d\n",
@@ -3871,18 +3877,21 @@ static void lpt_pch_enable(struct drm_crtc *crtc)
 
 void intel_put_shared_dpll(struct intel_crtc *crtc)
 {
+       struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
        struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
+       struct intel_shared_dpll_config *pll_config =
+               &dev_priv->display_state->shared_dpll[pll->id];
 
        if (pll == NULL)
                return;
 
-       if (!(pll->config.crtc_mask & (1 << crtc->pipe))) {
+       if (!(pll_config->crtc_mask & (1 << crtc->pipe))) {
                WARN(1, "bad %s crtc mask\n", pll->name);
                return;
        }
 
-       pll->config.crtc_mask &= ~(1 << crtc->pipe);
-       if (pll->config.crtc_mask == 0) {
+       pll_config->crtc_mask &= ~(1 << crtc->pipe);
+       if (pll_config->crtc_mask == 0) {
                WARN_ON(pll->on);
                WARN_ON(pll->active);
        }
@@ -3966,14 +3975,16 @@ static int intel_shared_dpll_start_config(struct 
drm_i915_private *dev_priv,
                                          struct intel_atomic_state *state,
                                          unsigned clear_pipes)
 {
-       struct intel_shared_dpll *pll;
+       struct intel_shared_dpll_config *pll_config;
        enum intel_dpll_id i;
 
+       /* FIXME: convert this to a simple memdup */
+
        for (i = 0; i < dev_priv->num_shared_dpll; i++) {
-               pll = &dev_priv->shared_dplls[i];
+               pll_config = &dev_priv->display_state->shared_dpll[i];
 
-               memcpy(&state->shared_dpll[i], &pll->config,
-                      sizeof pll->config);
+               memcpy(&state->shared_dpll[i], pll_config,
+                      sizeof *pll_config);
                state->shared_dpll[i].crtc_mask &= ~clear_pipes;
        }
 
@@ -3983,12 +3994,14 @@ static int intel_shared_dpll_start_config(struct 
drm_i915_private *dev_priv,
 static void intel_shared_dpll_commit(struct drm_i915_private *dev_priv,
                                     struct intel_atomic_state *state)
 {
-       struct intel_shared_dpll *pll;
+       struct intel_shared_dpll_config *pll_config;
        enum intel_dpll_id i;
 
+       /* FIXME: convert this to a poiner swap */
+
        for (i = 0; i < dev_priv->num_shared_dpll; i++) {
-               pll = &dev_priv->shared_dplls[i];
-               pll->config = state->shared_dpll[i];
+               pll_config = &dev_priv->display_state->shared_dpll[i];
+               *pll_config = state->shared_dpll[i];
        }
 }
 
@@ -10864,6 +10877,8 @@ check_shared_dpll_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];
+               struct intel_shared_dpll_config *pll_config =
+                       &dev_priv->display_state->shared_dpll[pll->id];
                int enabled_crtcs = 0, active_crtcs = 0;
                bool active;
 
@@ -10873,9 +10888,9 @@ check_shared_dpll_state(struct drm_device *dev)
 
                active = pll->get_hw_state(dev_priv, pll, &dpll_hw_state);
 
-               I915_STATE_WARN(pll->active > hweight32(pll->config.crtc_mask),
+               I915_STATE_WARN(pll->active > hweight32(pll_config->crtc_mask),
                     "more active pll users than references: %i vs %i\n",
-                    pll->active, hweight32(pll->config.crtc_mask));
+                    pll->active, hweight32(pll_config->crtc_mask));
                I915_STATE_WARN(pll->active && !pll->on,
                     "pll in active use but not on in sw tracking\n");
                I915_STATE_WARN(pll->on && !pll->active,
@@ -10893,11 +10908,11 @@ check_shared_dpll_state(struct drm_device *dev)
                I915_STATE_WARN(pll->active != active_crtcs,
                     "pll active crtcs mismatch (expected %i, found %i)\n",
                     pll->active, active_crtcs);
-               I915_STATE_WARN(hweight32(pll->config.crtc_mask) != 
enabled_crtcs,
+               I915_STATE_WARN(hweight32(pll_config->crtc_mask) != 
enabled_crtcs,
                     "pll enabled crtcs mismatch (expected %i, found %i)\n",
-                    hweight32(pll->config.crtc_mask), enabled_crtcs);
+                    hweight32(pll_config->crtc_mask), enabled_crtcs);
 
-               I915_STATE_WARN(pll->on && memcmp(&pll->config.hw_state, 
&dpll_hw_state,
+               I915_STATE_WARN(pll->on && memcmp(&pll_config->hw_state, 
&dpll_hw_state,
                                       sizeof(dpll_hw_state)),
                     "pll hw state mismatch\n");
        }
@@ -11675,17 +11690,23 @@ static bool ibx_pch_dpll_get_hw_state(struct 
drm_i915_private *dev_priv,
 static void ibx_pch_dpll_mode_set(struct drm_i915_private *dev_priv,
                                  struct intel_shared_dpll *pll)
 {
-       I915_WRITE(PCH_FP0(pll->id), pll->config.hw_state.fp0);
-       I915_WRITE(PCH_FP1(pll->id), pll->config.hw_state.fp1);
+       struct intel_shared_dpll_config *pll_config =
+               &dev_priv->display_state->shared_dpll[pll->id];
+
+       I915_WRITE(PCH_FP0(pll->id), pll_config->hw_state.fp0);
+       I915_WRITE(PCH_FP1(pll->id), pll_config->hw_state.fp1);
 }
 
 static void ibx_pch_dpll_enable(struct drm_i915_private *dev_priv,
                                struct intel_shared_dpll *pll)
 {
+       struct intel_shared_dpll_config *pll_config =
+               &dev_priv->display_state->shared_dpll[pll->id];
+
        /* PCH refclock must be enabled first */
        ibx_assert_pch_refclk_enabled(dev_priv);
 
-       I915_WRITE(PCH_DPLL(pll->id), pll->config.hw_state.dpll);
+       I915_WRITE(PCH_DPLL(pll->id), pll_config->hw_state.dpll);
 
        /* Wait for the clocks to stabilize. */
        POSTING_READ(PCH_DPLL(pll->id));
@@ -11696,7 +11717,7 @@ static void ibx_pch_dpll_enable(struct drm_i915_private 
*dev_priv,
         *
         * So write it again.
         */
-       I915_WRITE(PCH_DPLL(pll->id), pll->config.hw_state.dpll);
+       I915_WRITE(PCH_DPLL(pll->id), pll_config->hw_state.dpll);
        POSTING_READ(PCH_DPLL(pll->id));
        udelay(200);
 }
@@ -13139,6 +13160,13 @@ void intel_modeset_init(struct drm_device *dev)
        enum pipe pipe;
        struct intel_crtc *crtc;
 
+       dev_priv->display_state = kzalloc(sizeof *dev_priv->display_state,
+                                         GFP_KERNEL);
+       if (!dev_priv->display_state) {
+               DRM_DEBUG_KMS("Failed to allocate display state.\n");
+               return;
+       }
+
        drm_mode_config_init(dev);
 
        dev->mode_config.min_width = 0;
@@ -13509,22 +13537,24 @@ 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];
+               struct intel_shared_dpll_config *pll_config =
+                       &dev_priv->display_state->shared_dpll[pll->id];
 
                pll->on = pll->get_hw_state(dev_priv, pll,
-                                           &pll->config.hw_state);
+                                           &pll_config->hw_state);
                pll->active = 0;
-               pll->config.crtc_mask = 0;
+               pll_config->crtc_mask = 0;
                for_each_intel_crtc(dev, crtc) {
                        if (crtc->active && intel_crtc_to_shared_dpll(crtc) == 
pll) {
                                pll->active++;
-                               pll->config.crtc_mask |= 1 << crtc->pipe;
+                               pll_config->crtc_mask |= 1 << crtc->pipe;
                        }
                }
 
                DRM_DEBUG_KMS("%s hw state readout: crtc_mask 0x%08x, on %i\n",
-                             pll->name, pll->config.crtc_mask, pll->on);
+                             pll->name, pll_config->crtc_mask, pll->on);
 
-               if (pll->config.crtc_mask)
+               if (pll_config->crtc_mask)
                        intel_display_power_get(dev_priv, POWER_DOMAIN_PLLS);
        }
 
@@ -13749,6 +13779,8 @@ void intel_modeset_cleanup(struct drm_device *dev)
        mutex_lock(&dev->struct_mutex);
        intel_cleanup_gt_powersave(dev);
        mutex_unlock(&dev->struct_mutex);
+
+       kfree(dev_priv->display_state);
 }
 
 /*
-- 
2.1.0

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