| /* |
| * Copyright 2015 Advanced Micro Devices, Inc. |
| * |
| * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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. |
| * |
| * Authors: AMD |
| * |
| */ |
| |
| #include <linux/mm.h> |
| |
| /* DC interface (public) */ |
| #include "dm_services.h" |
| #include "dc.h" |
| |
| /* DC core (private) */ |
| #include "core_types.h" |
| #include "transform.h" |
| #include "dpp.h" |
| |
| /******************************************************************************* |
| * Private functions |
| ******************************************************************************/ |
| static void dc_plane_construct(struct dc_context *ctx, struct dc_plane_state *plane_state) |
| { |
| plane_state->ctx = ctx; |
| |
| plane_state->gamma_correction = dc_create_gamma(); |
| if (plane_state->gamma_correction != NULL) |
| plane_state->gamma_correction->is_identity = true; |
| |
| plane_state->in_transfer_func = dc_create_transfer_func(); |
| if (plane_state->in_transfer_func != NULL) { |
| plane_state->in_transfer_func->type = TF_TYPE_BYPASS; |
| } |
| plane_state->in_shaper_func = dc_create_transfer_func(); |
| if (plane_state->in_shaper_func != NULL) { |
| plane_state->in_shaper_func->type = TF_TYPE_BYPASS; |
| } |
| |
| plane_state->lut3d_func = dc_create_3dlut_func(); |
| |
| plane_state->blend_tf = dc_create_transfer_func(); |
| if (plane_state->blend_tf != NULL) { |
| plane_state->blend_tf->type = TF_TYPE_BYPASS; |
| } |
| |
| } |
| |
| static void dc_plane_destruct(struct dc_plane_state *plane_state) |
| { |
| if (plane_state->gamma_correction != NULL) { |
| dc_gamma_release(&plane_state->gamma_correction); |
| } |
| if (plane_state->in_transfer_func != NULL) { |
| dc_transfer_func_release( |
| plane_state->in_transfer_func); |
| plane_state->in_transfer_func = NULL; |
| } |
| if (plane_state->in_shaper_func != NULL) { |
| dc_transfer_func_release( |
| plane_state->in_shaper_func); |
| plane_state->in_shaper_func = NULL; |
| } |
| if (plane_state->lut3d_func != NULL) { |
| dc_3dlut_func_release( |
| plane_state->lut3d_func); |
| plane_state->lut3d_func = NULL; |
| } |
| if (plane_state->blend_tf != NULL) { |
| dc_transfer_func_release( |
| plane_state->blend_tf); |
| plane_state->blend_tf = NULL; |
| } |
| |
| } |
| |
| /******************************************************************************* |
| * Public functions |
| ******************************************************************************/ |
| void enable_surface_flip_reporting(struct dc_plane_state *plane_state, |
| uint32_t controller_id) |
| { |
| plane_state->irq_source = controller_id + DC_IRQ_SOURCE_PFLIP1 - 1; |
| /*register_flip_interrupt(surface);*/ |
| } |
| |
| struct dc_plane_state *dc_create_plane_state(struct dc *dc) |
| { |
| struct dc_plane_state *plane_state = kvzalloc(sizeof(*plane_state), |
| GFP_KERNEL); |
| |
| if (NULL == plane_state) |
| return NULL; |
| |
| kref_init(&plane_state->refcount); |
| dc_plane_construct(dc->ctx, plane_state); |
| |
| return plane_state; |
| } |
| |
| /* |
| ***************************************************************************** |
| * Function: dc_plane_get_status |
| * |
| * @brief |
| * Looks up the pipe context of plane_state and updates the pending status |
| * of the pipe context. Then returns plane_state->status |
| * |
| * @param [in] plane_state: pointer to the plane_state to get the status of |
| ***************************************************************************** |
| */ |
| const struct dc_plane_status *dc_plane_get_status( |
| const struct dc_plane_state *plane_state) |
| { |
| const struct dc_plane_status *plane_status; |
| struct dc *dc; |
| int i; |
| |
| if (!plane_state || |
| !plane_state->ctx || |
| !plane_state->ctx->dc) { |
| ASSERT(0); |
| return NULL; /* remove this if above assert never hit */ |
| } |
| |
| plane_status = &plane_state->status; |
| dc = plane_state->ctx->dc; |
| |
| if (dc->current_state == NULL) |
| return NULL; |
| |
| /* Find the current plane state and set its pending bit to false */ |
| for (i = 0; i < dc->res_pool->pipe_count; i++) { |
| struct pipe_ctx *pipe_ctx = |
| &dc->current_state->res_ctx.pipe_ctx[i]; |
| |
| if (pipe_ctx->plane_state != plane_state) |
| continue; |
| |
| pipe_ctx->plane_state->status.is_flip_pending = false; |
| |
| break; |
| } |
| |
| for (i = 0; i < dc->res_pool->pipe_count; i++) { |
| struct pipe_ctx *pipe_ctx = |
| &dc->current_state->res_ctx.pipe_ctx[i]; |
| |
| if (pipe_ctx->plane_state != plane_state) |
| continue; |
| |
| dc->hwss.update_pending_status(pipe_ctx); |
| } |
| |
| return plane_status; |
| } |
| |
| void dc_plane_state_retain(struct dc_plane_state *plane_state) |
| { |
| kref_get(&plane_state->refcount); |
| } |
| |
| static void dc_plane_state_free(struct kref *kref) |
| { |
| struct dc_plane_state *plane_state = container_of(kref, struct dc_plane_state, refcount); |
| dc_plane_destruct(plane_state); |
| kvfree(plane_state); |
| } |
| |
| void dc_plane_state_release(struct dc_plane_state *plane_state) |
| { |
| kref_put(&plane_state->refcount, dc_plane_state_free); |
| } |
| |
| void dc_gamma_retain(struct dc_gamma *gamma) |
| { |
| kref_get(&gamma->refcount); |
| } |
| |
| static void dc_gamma_free(struct kref *kref) |
| { |
| struct dc_gamma *gamma = container_of(kref, struct dc_gamma, refcount); |
| kvfree(gamma); |
| } |
| |
| void dc_gamma_release(struct dc_gamma **gamma) |
| { |
| kref_put(&(*gamma)->refcount, dc_gamma_free); |
| *gamma = NULL; |
| } |
| |
| struct dc_gamma *dc_create_gamma(void) |
| { |
| struct dc_gamma *gamma = kvzalloc(sizeof(*gamma), GFP_KERNEL); |
| |
| if (gamma == NULL) |
| goto alloc_fail; |
| |
| kref_init(&gamma->refcount); |
| return gamma; |
| |
| alloc_fail: |
| return NULL; |
| } |
| |
| void dc_transfer_func_retain(struct dc_transfer_func *tf) |
| { |
| kref_get(&tf->refcount); |
| } |
| |
| static void dc_transfer_func_free(struct kref *kref) |
| { |
| struct dc_transfer_func *tf = container_of(kref, struct dc_transfer_func, refcount); |
| kvfree(tf); |
| } |
| |
| void dc_transfer_func_release(struct dc_transfer_func *tf) |
| { |
| kref_put(&tf->refcount, dc_transfer_func_free); |
| } |
| |
| struct dc_transfer_func *dc_create_transfer_func(void) |
| { |
| struct dc_transfer_func *tf = kvzalloc(sizeof(*tf), GFP_KERNEL); |
| |
| if (tf == NULL) |
| goto alloc_fail; |
| |
| kref_init(&tf->refcount); |
| |
| return tf; |
| |
| alloc_fail: |
| return NULL; |
| } |
| |
| static void dc_3dlut_func_free(struct kref *kref) |
| { |
| struct dc_3dlut *lut = container_of(kref, struct dc_3dlut, refcount); |
| |
| kvfree(lut); |
| } |
| |
| struct dc_3dlut *dc_create_3dlut_func(void) |
| { |
| struct dc_3dlut *lut = kvzalloc(sizeof(*lut), GFP_KERNEL); |
| |
| if (lut == NULL) |
| goto alloc_fail; |
| |
| kref_init(&lut->refcount); |
| lut->state.raw = 0; |
| |
| return lut; |
| |
| alloc_fail: |
| return NULL; |
| |
| } |
| |
| void dc_3dlut_func_release(struct dc_3dlut *lut) |
| { |
| kref_put(&lut->refcount, dc_3dlut_func_free); |
| } |
| |
| void dc_3dlut_func_retain(struct dc_3dlut *lut) |
| { |
| kref_get(&lut->refcount); |
| } |
| |
| |