drm/i915: Convert bandwidth state to global state

Now that we have the more formal global state thing let's
use if for memory bandwidth tracking. No real difference
to the current private object usage since we already
tried to avoid taking the single serializing lock needlessly.
But since we're going to roll the global state out to more
things probably a good idea to unify the approaches a bit.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200120174728.21095-16-ville.syrjala@linux.intel.com
Reviewed-by: Imre Deak <imre.deak@intel.com>

diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c
index 9c40ad5..26fa943 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_bw.c
+++ b/drivers/gpu/drm/i915/display/intel_bw.c
@@ -377,10 +377,9 @@ static struct intel_bw_state *
 intel_atomic_get_bw_state(struct intel_atomic_state *state)
 {
        struct drm_i915_private *dev_priv = to_i915(state->base.dev);
-       struct drm_private_state *bw_state;
+       struct intel_global_state *bw_state;
 
-       bw_state = drm_atomic_get_private_obj_state(&state->base,
-                                                   &dev_priv->bw_obj);
+       bw_state = intel_atomic_get_global_obj_state(state, &dev_priv->bw_obj);
        if (IS_ERR(bw_state))
                return ERR_CAST(bw_state);
 
@@ -395,7 +394,7 @@ int intel_bw_atomic_check(struct intel_atomic_state *state)
        unsigned int data_rate, max_data_rate;
        unsigned int num_active_planes;
        struct intel_crtc *crtc;
-       int i;
+       int i, ret;
 
        /* FIXME earlier gens need some checks too */
        if (INTEL_GEN(dev_priv) < 11)
@@ -437,6 +436,10 @@ int intel_bw_atomic_check(struct intel_atomic_state *state)
        if (!bw_state)
                return 0;
 
+       ret = intel_atomic_lock_global_state(&bw_state->base);
+       if (ret)
+               return ret;
+
        data_rate = intel_bw_data_rate(dev_priv, bw_state);
        num_active_planes = intel_bw_num_active_planes(dev_priv, bw_state);
 
@@ -454,7 +457,8 @@ int intel_bw_atomic_check(struct intel_atomic_state *state)
        return 0;
 }
 
-static struct drm_private_state *intel_bw_duplicate_state(struct drm_private_obj *obj)
+static struct intel_global_state *
+intel_bw_duplicate_state(struct intel_global_obj *obj)
 {
        struct intel_bw_state *state;
 
@@ -462,18 +466,16 @@ static struct drm_private_state *intel_bw_duplicate_state(struct drm_private_obj
        if (!state)
                return NULL;
 
-       __drm_atomic_helper_private_obj_duplicate_state(obj, &state->base);
-
        return &state->base;
 }
 
-static void intel_bw_destroy_state(struct drm_private_obj *obj,
-                                  struct drm_private_state *state)
+static void intel_bw_destroy_state(struct intel_global_obj *obj,
+                                  struct intel_global_state *state)
 {
        kfree(state);
 }
 
-static const struct drm_private_state_funcs intel_bw_funcs = {
+static const struct intel_global_state_funcs intel_bw_funcs = {
        .atomic_duplicate_state = intel_bw_duplicate_state,
        .atomic_destroy_state = intel_bw_destroy_state,
 };
@@ -486,13 +488,8 @@ int intel_bw_init(struct drm_i915_private *dev_priv)
        if (!state)
                return -ENOMEM;
 
-       drm_atomic_private_obj_init(&dev_priv->drm, &dev_priv->bw_obj,
-                                   &state->base, &intel_bw_funcs);
+       intel_atomic_global_obj_init(dev_priv, &dev_priv->bw_obj,
+                                    &state->base, &intel_bw_funcs);
 
        return 0;
 }
-
-void intel_bw_cleanup(struct drm_i915_private *dev_priv)
-{
-       drm_atomic_private_obj_fini(&dev_priv->bw_obj);
-}

diff --git a/drivers/gpu/drm/i915/display/intel_bw.h b/drivers/gpu/drm/i915/display/intel_bw.h
index 20b9ad2..a8aa762 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_bw.h
+++ b/drivers/gpu/drm/i915/display/intel_bw.h
@@ -9,13 +9,14 @@
 #include <drm/drm_atomic.h>
 
 #include "intel_display.h"
+#include "intel_global_state.h"
 
 struct drm_i915_private;
 struct intel_atomic_state;
 struct intel_crtc_state;
 
 struct intel_bw_state {
-       struct drm_private_state base;
+       struct intel_global_state base;
 
        unsigned int data_rate[I915_MAX_PIPES];
        u8 num_active_planes[I915_MAX_PIPES];
@@ -25,7 +26,6 @@ struct intel_bw_state {
 
 void intel_bw_init_hw(struct drm_i915_private *dev_priv);
 int intel_bw_init(struct drm_i915_private *dev_priv);
-void intel_bw_cleanup(struct drm_i915_private *dev_priv);
 int intel_bw_atomic_check(struct intel_atomic_state *state);
 void intel_bw_crtc_update(struct intel_bw_state *bw_state,
                          const struct intel_crtc_state *crtc_state);

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 63a3e96..9f20c7d 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -18822,8 +18822,6 @@ void intel_modeset_driver_remove(struct drm_i915_private *i915)
 
        intel_gmbus_teardown(i915);
 
-       intel_bw_cleanup(i915);
-
        destroy_workqueue(i915->flip_wq);
        destroy_workqueue(i915->modeset_wq);
 

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 3ed4837..2d4c0b5 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1249,7 +1249,7 @@ struct drm_i915_private {
                u8 num_planes;
        } max_bw[6];
 
-       struct drm_private_obj bw_obj;
+       struct intel_global_obj bw_obj;
 
        struct intel_runtime_pm runtime_pm;