Release 4.12 drivers/gpu/drm/i915/intel_atomic_plane.c
/*
* Copyright © 2014 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
/**
* DOC: atomic plane helpers
*
* The functions here are used by the atomic plane helper functions to
* implement legacy plane updates (i.e., drm_plane->update_plane() and
* drm_plane->disable_plane()). This allows plane updates to use the
* atomic state infrastructure and perform plane updates as separate
* prepare/check/commit/cleanup steps.
*/
#include <drm/drmP.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_plane_helper.h>
#include "intel_drv.h"
/**
* intel_create_plane_state - create plane state object
* @plane: drm plane
*
* Allocates a fresh plane state for the given plane and sets some of
* the state values to sensible initial values.
*
* Returns: A newly allocated plane state, or NULL on failure
*/
struct intel_plane_state *
intel_create_plane_state(struct drm_plane *plane)
{
struct intel_plane_state *state;
state = kzalloc(sizeof(*state), GFP_KERNEL);
if (!state)
return NULL;
state->base.plane = plane;
state->base.rotation = DRM_ROTATE_0;
state->ckey.flags = I915_SET_COLORKEY_NONE;
return state;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Matt Roper | 57 | 87.69% | 2 | 66.67% |
| Maarten Lankhorst | 8 | 12.31% | 1 | 33.33% |
| Total | 65 | 100.00% | 3 | 100.00% |
/**
* intel_plane_duplicate_state - duplicate plane state
* @plane: drm plane
*
* Allocates and returns a copy of the plane state (both common and
* Intel-specific) for the specified plane.
*
* Returns: The newly allocated plane state, or NULL on failure.
*/
struct drm_plane_state *
intel_plane_duplicate_state(struct drm_plane *plane)
{
struct drm_plane_state *state;
struct intel_plane_state *intel_state;
intel_state = kmemdup(plane->state, sizeof(*intel_state), GFP_KERNEL);
if (!intel_state)
return NULL;
state = &intel_state->base;
__drm_atomic_helper_plane_duplicate_state(plane, state);
intel_state->vma = NULL;
return state;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Matt Roper | 61 | 87.14% | 2 | 50.00% |
| Chris Wilson | 6 | 8.57% | 1 | 25.00% |
| Ander Conselvan de Oliveira | 3 | 4.29% | 1 | 25.00% |
| Total | 70 | 100.00% | 4 | 100.00% |
/**
* intel_plane_destroy_state - destroy plane state
* @plane: drm plane
* @state: state object to destroy
*
* Destroys the plane state (both common and Intel-specific) for the
* specified plane.
*/
void
intel_plane_destroy_state(struct drm_plane *plane,
struct drm_plane_state *state)
{
struct i915_vma *vma;
vma = fetch_and_zero(&to_intel_plane_state(state)->vma);
/*
* FIXME: Normally intel_cleanup_plane_fb handles destruction of vma.
* We currently don't clear all planes during driver unload, so we have
* to be able to unpin vma here for now.
*
* Normally this can only happen during unload when kmscon is disabled
* and userspace doesn't attempt to set a framebuffer at all.
*/
if (vma) {
mutex_lock(&plane->dev->struct_mutex);
intel_unpin_fb_vma(vma);
mutex_unlock(&plane->dev->struct_mutex);
}
drm_atomic_helper_plane_destroy_state(plane, state);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chris Wilson | 50 | 69.44% | 1 | 50.00% |
| Matt Roper | 22 | 30.56% | 1 | 50.00% |
| Total | 72 | 100.00% | 2 | 100.00% |
int intel_plane_atomic_check_with_state(struct intel_crtc_state *crtc_state,
struct intel_plane_state *intel_state)
{
struct drm_plane *plane = intel_state->base.plane;
struct drm_i915_private *dev_priv = to_i915(plane->dev);
struct drm_plane_state *state = &intel_state->base;
struct intel_plane *intel_plane = to_intel_plane(plane);
int ret;
/*
* Both crtc and plane->crtc could be NULL if we're updating a
* property while the plane is disabled. We don't actually have
* anything driver-specific we need to test in that case, so
* just return success.
*/
if (!intel_state->base.crtc && !plane->state->crtc)
return 0;
/* Clip all planes to CRTC size, or 0x0 if CRTC is disabled */
intel_state->clip.x1 = 0;
intel_state->clip.y1 = 0;
intel_state->clip.x2 =
crtc_state->base.enable ? crtc_state->pipe_src_w : 0;
intel_state->clip.y2 =
crtc_state->base.enable ? crtc_state->pipe_src_h : 0;
if (state->fb && drm_rotation_90_or_270(state->rotation)) {
struct drm_format_name_buf format_name;
if (state->fb->modifier != I915_FORMAT_MOD_Y_TILED &&
state->fb->modifier != I915_FORMAT_MOD_Yf_TILED) {
DRM_DEBUG_KMS("Y/Yf tiling required for 90/270!\n");
return -EINVAL;
}
/*
* 90/270 is not allowed with RGB64 16:16:16:16,
* RGB 16-bit 5:6:5, and Indexed 8-bit.
* TBD: Add RGB64 case once its added in supported format list.
*/
switch (state->fb->format->format) {
case DRM_FORMAT_C8:
case DRM_FORMAT_RGB565:
DRM_DEBUG_KMS("Unsupported pixel format %s for 90/270!\n",
drm_get_format_name(state->fb->format->format,
&format_name));
return -EINVAL;
default:
break;
}
}
/* CHV ignores the mirror bit when the rotate bit is set :( */
if (IS_CHERRYVIEW(dev_priv) &&
state->rotation & DRM_ROTATE_180 &&
state->rotation & DRM_REFLECT_X) {
DRM_DEBUG_KMS("Cannot rotate and reflect at the same time\n");
return -EINVAL;
}
intel_state->base.visible = false;
ret = intel_plane->check_plane(plane, crtc_state, intel_state);
if (ret)
return ret;
/* FIXME pre-g4x don't work like this */
if (intel_state->base.visible)
crtc_state->active_planes |= BIT(intel_plane->id);
else
crtc_state->active_planes &= ~BIT(intel_plane->id);
return intel_plane_atomic_calc_changes(&crtc_state->base, state);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ville Syrjälä | 88 | 26.75% | 6 | 35.29% |
| Matt Roper | 78 | 23.71% | 2 | 11.76% |
| Sonika Jindal | 70 | 21.28% | 1 | 5.88% |
| Maarten Lankhorst | 65 | 19.76% | 4 | 23.53% |
| Ander Conselvan de Oliveira | 16 | 4.86% | 2 | 11.76% |
| Eric Engestrom | 12 | 3.65% | 2 | 11.76% |
| Total | 329 | 100.00% | 17 | 100.00% |
static int intel_plane_atomic_check(struct drm_plane *plane,
struct drm_plane_state *state)
{
struct drm_crtc *crtc = state->crtc;
struct drm_crtc_state *drm_crtc_state;
crtc = crtc ? crtc : plane->state->crtc;
/*
* Both crtc and plane->crtc could be NULL if we're updating a
* property while the plane is disabled. We don't actually have
* anything driver-specific we need to test in that case, so
* just return success.
*/
if (!crtc)
return 0;
drm_crtc_state = drm_atomic_get_existing_crtc_state(state->state, crtc);
if (WARN_ON(!drm_crtc_state))
return -EINVAL;
return intel_plane_atomic_check_with_state(to_intel_crtc_state(drm_crtc_state),
to_intel_plane_state(state));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Maarten Lankhorst | 88 | 100.00% | 1 | 100.00% |
| Total | 88 | 100.00% | 1 | 100.00% |
static void intel_plane_atomic_update(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
struct intel_plane *intel_plane = to_intel_plane(plane);
struct intel_plane_state *intel_state =
to_intel_plane_state(plane->state);
struct drm_crtc *crtc = plane->state->crtc ?: old_state->crtc;
if (intel_state->base.visible) {
trace_intel_update_plane(plane,
to_intel_crtc(crtc));
intel_plane->update_plane(plane,
to_intel_crtc_state(crtc->state),
intel_state);
} else {
trace_intel_disable_plane(plane,
to_intel_crtc(crtc));
intel_plane->disable_plane(plane, crtc);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Maarten Lankhorst | 45 | 40.18% | 1 | 20.00% |
| Matt Roper | 38 | 33.93% | 1 | 20.00% |
| Ville Syrjälä | 29 | 25.89% | 3 | 60.00% |
| Total | 112 | 100.00% | 5 | 100.00% |
const struct drm_plane_helper_funcs intel_plane_helper_funcs = {
.prepare_fb = intel_prepare_plane_fb,
.cleanup_fb = intel_cleanup_plane_fb,
.atomic_check = intel_plane_atomic_check,
.atomic_update = intel_plane_atomic_update,
};
/**
* intel_plane_atomic_get_property - fetch plane property value
* @plane: plane to fetch property for
* @state: state containing the property value
* @property: property to look up
* @val: pointer to write property value into
*
* The DRM core does not store shadow copies of properties for
* atomic-capable drivers. This entrypoint is used to fetch
* the current value of a driver-specific plane property.
*/
int
intel_plane_atomic_get_property(struct drm_plane *plane,
const struct drm_plane_state *state,
struct drm_property *property,
uint64_t *val)
{
DRM_DEBUG_KMS("Unknown plane property '%s'\n", property->name);
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Matt Roper | 38 | 100.00% | 1 | 100.00% |
| Total | 38 | 100.00% | 1 | 100.00% |
/**
* intel_plane_atomic_set_property - set plane property value
* @plane: plane to set property for
* @state: state to update property value in
* @property: property to set
* @val: value to set property to
*
* Writes the specified property value for a plane into the provided atomic
* state object.
*
* Returns 0 on success, -EINVAL on unrecognized properties
*/
int
intel_plane_atomic_set_property(struct drm_plane *plane,
struct drm_plane_state *state,
struct drm_property *property,
uint64_t val)
{
DRM_DEBUG_KMS("Unknown plane property '%s'\n", property->name);
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Matt Roper | 36 | 100.00% | 1 | 100.00% |
| Total | 36 | 100.00% | 1 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Matt Roper | 376 | 43.93% | 5 | 19.23% |
| Maarten Lankhorst | 206 | 24.07% | 6 | 23.08% |
| Ville Syrjälä | 117 | 13.67% | 8 | 30.77% |
| Sonika Jindal | 70 | 8.18% | 1 | 3.85% |
| Chris Wilson | 56 | 6.54% | 1 | 3.85% |
| Ander Conselvan de Oliveira | 19 | 2.22% | 3 | 11.54% |
| Eric Engestrom | 12 | 1.40% | 2 | 7.69% |
| Total | 856 | 100.00% | 26 | 100.00% |
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