/*
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* Copyright 2015 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: AMD
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*
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*/
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#include <linux/mm.h>
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/* DC interface (public) */
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#include "dm_services.h"
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#include "dc.h"
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/* DC core (private) */
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#include "core_types.h"
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#include "transform.h"
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#include "dpp.h"
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/*******************************************************************************
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* Private functions
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******************************************************************************/
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static void dc_plane_construct(struct dc_context *ctx, struct dc_plane_state *plane_state)
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{
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plane_state->ctx = ctx;
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plane_state->gamma_correction = dc_create_gamma();
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if (plane_state->gamma_correction != NULL)
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plane_state->gamma_correction->is_identity = true;
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plane_state->in_transfer_func = dc_create_transfer_func();
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if (plane_state->in_transfer_func != NULL) {
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plane_state->in_transfer_func->type = TF_TYPE_BYPASS;
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}
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plane_state->in_shaper_func = dc_create_transfer_func();
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if (plane_state->in_shaper_func != NULL) {
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plane_state->in_shaper_func->type = TF_TYPE_BYPASS;
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}
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plane_state->lut3d_func = dc_create_3dlut_func();
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plane_state->blend_tf = dc_create_transfer_func();
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if (plane_state->blend_tf != NULL) {
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plane_state->blend_tf->type = TF_TYPE_BYPASS;
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}
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}
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static void dc_plane_destruct(struct dc_plane_state *plane_state)
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{
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if (plane_state->gamma_correction != NULL) {
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dc_gamma_release(&plane_state->gamma_correction);
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}
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if (plane_state->in_transfer_func != NULL) {
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dc_transfer_func_release(
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plane_state->in_transfer_func);
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plane_state->in_transfer_func = NULL;
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}
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if (plane_state->in_shaper_func != NULL) {
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dc_transfer_func_release(
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plane_state->in_shaper_func);
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plane_state->in_shaper_func = NULL;
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}
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if (plane_state->lut3d_func != NULL) {
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dc_3dlut_func_release(
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plane_state->lut3d_func);
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plane_state->lut3d_func = NULL;
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}
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if (plane_state->blend_tf != NULL) {
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dc_transfer_func_release(
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plane_state->blend_tf);
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plane_state->blend_tf = NULL;
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}
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}
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/*******************************************************************************
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* Public functions
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******************************************************************************/
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void enable_surface_flip_reporting(struct dc_plane_state *plane_state,
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uint32_t controller_id)
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{
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plane_state->irq_source = controller_id + DC_IRQ_SOURCE_PFLIP1 - 1;
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/*register_flip_interrupt(surface);*/
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}
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struct dc_plane_state *dc_create_plane_state(struct dc *dc)
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{
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struct dc_plane_state *plane_state = kvzalloc(sizeof(*plane_state),
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GFP_KERNEL);
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if (NULL == plane_state)
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return NULL;
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kref_init(&plane_state->refcount);
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dc_plane_construct(dc->ctx, plane_state);
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return plane_state;
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}
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/**
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*****************************************************************************
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* Function: dc_plane_get_status
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*
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* @brief
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* Looks up the pipe context of plane_state and updates the pending status
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* of the pipe context. Then returns plane_state->status
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*
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* @param [in] plane_state: pointer to the plane_state to get the status of
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*****************************************************************************
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*/
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const struct dc_plane_status *dc_plane_get_status(
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const struct dc_plane_state *plane_state)
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{
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const struct dc_plane_status *plane_status;
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struct dc *dc;
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int i;
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if (!plane_state ||
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!plane_state->ctx ||
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!plane_state->ctx->dc) {
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ASSERT(0);
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return NULL; /* remove this if above assert never hit */
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}
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plane_status = &plane_state->status;
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dc = plane_state->ctx->dc;
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if (dc->current_state == NULL)
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return NULL;
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/* Find the current plane state and set its pending bit to false */
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for (i = 0; i < dc->res_pool->pipe_count; i++) {
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struct pipe_ctx *pipe_ctx =
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&dc->current_state->res_ctx.pipe_ctx[i];
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if (pipe_ctx->plane_state != plane_state)
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continue;
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pipe_ctx->plane_state->status.is_flip_pending = false;
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break;
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}
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for (i = 0; i < dc->res_pool->pipe_count; i++) {
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struct pipe_ctx *pipe_ctx =
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&dc->current_state->res_ctx.pipe_ctx[i];
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if (pipe_ctx->plane_state != plane_state)
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continue;
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dc->hwss.update_pending_status(pipe_ctx);
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}
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return plane_status;
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}
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void dc_plane_state_retain(struct dc_plane_state *plane_state)
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{
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kref_get(&plane_state->refcount);
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}
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static void dc_plane_state_free(struct kref *kref)
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{
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struct dc_plane_state *plane_state = container_of(kref, struct dc_plane_state, refcount);
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dc_plane_destruct(plane_state);
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kvfree(plane_state);
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}
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void dc_plane_state_release(struct dc_plane_state *plane_state)
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{
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kref_put(&plane_state->refcount, dc_plane_state_free);
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}
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void dc_gamma_retain(struct dc_gamma *gamma)
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{
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kref_get(&gamma->refcount);
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}
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static void dc_gamma_free(struct kref *kref)
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{
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struct dc_gamma *gamma = container_of(kref, struct dc_gamma, refcount);
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kvfree(gamma);
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}
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void dc_gamma_release(struct dc_gamma **gamma)
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{
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kref_put(&(*gamma)->refcount, dc_gamma_free);
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*gamma = NULL;
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}
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struct dc_gamma *dc_create_gamma(void)
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{
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struct dc_gamma *gamma = kvzalloc(sizeof(*gamma), GFP_KERNEL);
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if (gamma == NULL)
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goto alloc_fail;
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kref_init(&gamma->refcount);
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return gamma;
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alloc_fail:
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return NULL;
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}
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void dc_transfer_func_retain(struct dc_transfer_func *tf)
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{
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kref_get(&tf->refcount);
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}
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static void dc_transfer_func_free(struct kref *kref)
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{
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struct dc_transfer_func *tf = container_of(kref, struct dc_transfer_func, refcount);
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kvfree(tf);
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}
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void dc_transfer_func_release(struct dc_transfer_func *tf)
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{
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kref_put(&tf->refcount, dc_transfer_func_free);
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}
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struct dc_transfer_func *dc_create_transfer_func(void)
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{
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struct dc_transfer_func *tf = kvzalloc(sizeof(*tf), GFP_KERNEL);
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if (tf == NULL)
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goto alloc_fail;
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kref_init(&tf->refcount);
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return tf;
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alloc_fail:
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return NULL;
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}
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static void dc_3dlut_func_free(struct kref *kref)
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{
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struct dc_3dlut *lut = container_of(kref, struct dc_3dlut, refcount);
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kvfree(lut);
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}
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struct dc_3dlut *dc_create_3dlut_func(void)
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{
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struct dc_3dlut *lut = kvzalloc(sizeof(*lut), GFP_KERNEL);
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if (lut == NULL)
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goto alloc_fail;
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kref_init(&lut->refcount);
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lut->state.raw = 0;
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return lut;
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alloc_fail:
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return NULL;
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}
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void dc_3dlut_func_release(struct dc_3dlut *lut)
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{
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kref_put(&lut->refcount, dc_3dlut_func_free);
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}
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void dc_3dlut_func_retain(struct dc_3dlut *lut)
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{
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kref_get(&lut->refcount);
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}
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