drm/i915: SAGV is not SKL-only, so rename a few things

The plan is to introduce intel_has_sagv() and then use it to discover
which platforms actually support it.

I thought about keeping the functions with their current skl names,
but found two problems: (i) skl_has_sagv() would become a very
confusing name, and (ii) intel_atomic_commit_tail() doesn't seem to be
calling any functions whose name start with a platform name, so the
"intel_" naming scheme seems make more sense than the "firstplatorm_"
naming scheme here.

Cc: stable@vger.kernel.org
Reviewed-by: Lyude <cpaul@redhat.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1474578035-424-2-git-send-email-paulo.r.zanoni@intel.com
(cherry picked from commit 16dcdc4edbcf5cb130004737f2548401776170f1)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index e08001a..8e1ba3b 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1984,11 +1984,11 @@ struct drm_i915_private {
        struct vlv_s0ix_state vlv_s0ix_state;
 
        enum {
-               I915_SKL_SAGV_UNKNOWN = 0,
-               I915_SKL_SAGV_DISABLED,
-               I915_SKL_SAGV_ENABLED,
-               I915_SKL_SAGV_NOT_CONTROLLED
-       } skl_sagv_status;
+               I915_SAGV_UNKNOWN = 0,
+               I915_SAGV_DISABLED,
+               I915_SAGV_ENABLED,
+               I915_SAGV_NOT_CONTROLLED
+       } sagv_status;
 
        struct {
                /*

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 6c9881b..b74e1a8 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -14367,8 +14367,8 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state)
                 * SKL workaround: bspec recommends we disable the SAGV when we
                 * have more then one pipe enabled
                 */
-               if (IS_SKYLAKE(dev_priv) && !skl_can_enable_sagv(state))
-                       skl_disable_sagv(dev_priv);
+               if (IS_SKYLAKE(dev_priv) && !intel_can_enable_sagv(state))
+                       intel_disable_sagv(dev_priv);
 
                intel_modeset_verify_disabled(dev);
        }
@@ -14426,8 +14426,8 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state)
        }
 
        if (IS_SKYLAKE(dev_priv) && intel_state->modeset &&
-           skl_can_enable_sagv(state))
-               skl_enable_sagv(dev_priv);
+           intel_can_enable_sagv(state))
+               intel_enable_sagv(dev_priv);
 
        drm_atomic_helper_commit_hw_done(state);
 

diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index c3e65e5..a19ec06 100644 (file)
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1742,9 +1742,9 @@ void ilk_wm_get_hw_state(struct drm_device *dev);
 void skl_wm_get_hw_state(struct drm_device *dev);
 void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv,
                          struct skl_ddb_allocation *ddb /* out */);
-bool skl_can_enable_sagv(struct drm_atomic_state *state);
-int skl_enable_sagv(struct drm_i915_private *dev_priv);
-int skl_disable_sagv(struct drm_i915_private *dev_priv);
+bool intel_can_enable_sagv(struct drm_atomic_state *state);
+int intel_enable_sagv(struct drm_i915_private *dev_priv);
+int intel_disable_sagv(struct drm_i915_private *dev_priv);
 bool skl_ddb_allocation_equals(const struct skl_ddb_allocation *old,
                               const struct skl_ddb_allocation *new,
                               enum pipe pipe);

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 2df06b7..431b225 100644 (file)
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2889,12 +2889,12 @@ skl_wm_plane_id(const struct intel_plane *plane)
  *  - We're not using an interlaced display configuration
  */
 int
-skl_enable_sagv(struct drm_i915_private *dev_priv)
+intel_enable_sagv(struct drm_i915_private *dev_priv)
 {
        int ret;
 
-       if (dev_priv->skl_sagv_status == I915_SKL_SAGV_NOT_CONTROLLED ||
-           dev_priv->skl_sagv_status == I915_SKL_SAGV_ENABLED)
+       if (dev_priv->sagv_status == I915_SAGV_NOT_CONTROLLED ||
+           dev_priv->sagv_status == I915_SAGV_ENABLED)
                return 0;
 
        DRM_DEBUG_KMS("Enabling the SAGV\n");
@@ -2912,19 +2912,19 @@ skl_enable_sagv(struct drm_i915_private *dev_priv)
         */
        if (ret == -ENXIO) {
                DRM_DEBUG_DRIVER("No SAGV found on system, ignoring\n");
-               dev_priv->skl_sagv_status = I915_SKL_SAGV_NOT_CONTROLLED;
+               dev_priv->sagv_status = I915_SAGV_NOT_CONTROLLED;
                return 0;
        } else if (ret < 0) {
                DRM_ERROR("Failed to enable the SAGV\n");
                return ret;
        }
 
-       dev_priv->skl_sagv_status = I915_SKL_SAGV_ENABLED;
+       dev_priv->sagv_status = I915_SAGV_ENABLED;
        return 0;
 }
 
 static int
-skl_do_sagv_disable(struct drm_i915_private *dev_priv)
+intel_do_sagv_disable(struct drm_i915_private *dev_priv)
 {
        int ret;
        uint32_t temp = GEN9_SAGV_DISABLE;
@@ -2938,19 +2938,19 @@ skl_do_sagv_disable(struct drm_i915_private *dev_priv)
 }
 
 int
-skl_disable_sagv(struct drm_i915_private *dev_priv)
+intel_disable_sagv(struct drm_i915_private *dev_priv)
 {
        int ret, result;
 
-       if (dev_priv->skl_sagv_status == I915_SKL_SAGV_NOT_CONTROLLED ||
-           dev_priv->skl_sagv_status == I915_SKL_SAGV_DISABLED)
+       if (dev_priv->sagv_status == I915_SAGV_NOT_CONTROLLED ||
+           dev_priv->sagv_status == I915_SAGV_DISABLED)
                return 0;
 
        DRM_DEBUG_KMS("Disabling the SAGV\n");
        mutex_lock(&dev_priv->rps.hw_lock);
 
        /* bspec says to keep retrying for at least 1 ms */
-       ret = wait_for(result = skl_do_sagv_disable(dev_priv), 1);
+       ret = wait_for(result = intel_do_sagv_disable(dev_priv), 1);
        mutex_unlock(&dev_priv->rps.hw_lock);
 
        if (ret == -ETIMEDOUT) {
@@ -2964,18 +2964,18 @@ skl_disable_sagv(struct drm_i915_private *dev_priv)
         */
        if (result == -ENXIO) {
                DRM_DEBUG_DRIVER("No SAGV found on system, ignoring\n");
-               dev_priv->skl_sagv_status = I915_SKL_SAGV_NOT_CONTROLLED;
+               dev_priv->sagv_status = I915_SAGV_NOT_CONTROLLED;
                return 0;
        } else if (result < 0) {
                DRM_ERROR("Failed to disable the SAGV\n");
                return result;
        }
 
-       dev_priv->skl_sagv_status = I915_SKL_SAGV_DISABLED;
+       dev_priv->sagv_status = I915_SAGV_DISABLED;
        return 0;
 }
 
-bool skl_can_enable_sagv(struct drm_atomic_state *state)
+bool intel_can_enable_sagv(struct drm_atomic_state *state)
 {
        struct drm_device *dev = state->dev;
        struct drm_i915_private *dev_priv = to_i915(dev);