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drm/i915: Introduce intel_plane_alloc()

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Pull the common plane+plane_state allocation into a small helper.
Reduces the amount of boilerplate in the plane initialization
functions.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181005125817.22576-9-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä
2018-10-05 15:58:14 +03:00
parent 2d72dc8b7c
commit c539b579b6
3 changed files with 46 additions and 50 deletions
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50
drivers/gpu/drm/i915/intel_sprite.c
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@@ -1793,12 +1793,40 @@ bool skl_plane_has_ccs(struct drm_i915_private *dev_priv,
plane_id == PLANE_SPRITE0);
}
struct intel_plane *intel_plane_alloc(void)
{
struct intel_plane_state *plane_state;
struct intel_plane *plane;
plane = kzalloc(sizeof(*plane), GFP_KERNEL);
if (!plane)
return ERR_PTR(-ENOMEM);
plane_state = intel_create_plane_state(&plane->base);
if (!plane_state) {
kfree(plane);
return ERR_PTR(-ENOMEM);
}
plane->base.state = &plane_state->base;
return plane;
}
void intel_plane_free(struct intel_plane *plane)
{
struct intel_plane_state *plane_state =
to_intel_plane_state(plane->base.state);
kfree(plane_state);
kfree(plane);
}
struct intel_plane *
intel_sprite_plane_create(struct drm_i915_private *dev_priv,
enum pipe pipe, int plane)
{
struct intel_plane *intel_plane = NULL;
struct intel_plane_state *state = NULL;
struct intel_plane *intel_plane;
const struct drm_plane_funcs *plane_funcs;
unsigned long possible_crtcs;
const uint32_t *plane_formats;
@@ -1807,18 +1835,9 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
int num_plane_formats;
int ret;
intel_plane = kzalloc(sizeof(*intel_plane), GFP_KERNEL);
if (!intel_plane) {
ret = -ENOMEM;
goto fail;
}
state = intel_create_plane_state(&intel_plane->base);
if (!state) {
ret = -ENOMEM;
goto fail;
}
intel_plane->base.state = &state->base;
intel_plane = intel_plane_alloc();
if (IS_ERR(intel_plane))
return intel_plane;
if (INTEL_GEN(dev_priv) >= 9) {
intel_plane->has_ccs = skl_plane_has_ccs(dev_priv, pipe,
@@ -1957,8 +1976,7 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
return intel_plane;
fail:
kfree(state);
kfree(intel_plane);
intel_plane_free(intel_plane);
return ERR_PTR(ret);
}