Exynos IPP will be rewritten, so remove current IPP core code and mark existing drivers as BROKEN.

Signed-off-by: Marek Szyprowski m.szyprowski@samsung.com --- drivers/gpu/drm/exynos/Kconfig | 11 +- drivers/gpu/drm/exynos/Makefile | 1 - drivers/gpu/drm/exynos/exynos_drm_drv.c | 12 - drivers/gpu/drm/exynos/exynos_drm_drv.h | 2 - drivers/gpu/drm/exynos/exynos_drm_ipp.c | 1806 ------------------------------- drivers/gpu/drm/exynos/exynos_drm_ipp.h | 252 ----- include/uapi/drm/exynos_drm.h | 192 +--- 7 files changed, 4 insertions(+), 2272 deletions(-) delete mode 100644 drivers/gpu/drm/exynos/exynos_drm_ipp.c delete mode 100644 drivers/gpu/drm/exynos/exynos_drm_ipp.h

diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig index 305dc3d4ff77..88cff0e039b6 100644 --- a/drivers/gpu/drm/exynos/Kconfig +++ b/drivers/gpu/drm/exynos/Kconfig @@ -94,26 +94,21 @@ config DRM_EXYNOS_G2D help Choose this option if you want to use Exynos G2D for DRM.

-config DRM_EXYNOS_IPP - bool "Image Post Processor" - help - Choose this option if you want to use IPP feature for DRM. - config DRM_EXYNOS_FIMC bool "FIMC" - depends on DRM_EXYNOS_IPP && MFD_SYSCON + depends on BROKEN && MFD_SYSCON help Choose this option if you want to use Exynos FIMC for DRM.

config DRM_EXYNOS_ROTATOR bool "Rotator" - depends on DRM_EXYNOS_IPP + depends on BROKEN help Choose this option if you want to use Exynos Rotator for DRM.

config DRM_EXYNOS_GSC bool "GScaler" - depends on DRM_EXYNOS_IPP && ARCH_EXYNOS5 && VIDEO_SAMSUNG_EXYNOS_GSC=n + depends on BROKEN && ARCH_EXYNOS5 && VIDEO_SAMSUNG_EXYNOS_GSC=n help Choose this option if you want to use Exynos GSC for DRM.

diff --git a/drivers/gpu/drm/exynos/Makefile b/drivers/gpu/drm/exynos/Makefile index f663490e949d..09bb002c9555 100644 --- a/drivers/gpu/drm/exynos/Makefile +++ b/drivers/gpu/drm/exynos/Makefile @@ -17,7 +17,6 @@ exynosdrm-$(CONFIG_DRM_EXYNOS_MIXER) += exynos_mixer.o exynosdrm-$(CONFIG_DRM_EXYNOS_HDMI) += exynos_hdmi.o exynosdrm-$(CONFIG_DRM_EXYNOS_VIDI) += exynos_drm_vidi.o exynosdrm-$(CONFIG_DRM_EXYNOS_G2D) += exynos_drm_g2d.o -exynosdrm-$(CONFIG_DRM_EXYNOS_IPP) += exynos_drm_ipp.o exynosdrm-$(CONFIG_DRM_EXYNOS_FIMC) += exynos_drm_fimc.o exynosdrm-$(CONFIG_DRM_EXYNOS_ROTATOR) += exynos_drm_rotator.o exynosdrm-$(CONFIG_DRM_EXYNOS_GSC) += exynos_drm_gsc.o diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c index b1f7299600f0..7f19054ebce3 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -28,7 +28,6 @@ #include "exynos_drm_plane.h" #include "exynos_drm_vidi.h" #include "exynos_drm_g2d.h" -#include "exynos_drm_ipp.h" #include "exynos_drm_iommu.h"

#define DRIVER_NAME "exynos" @@ -115,14 +114,6 @@ static void exynos_drm_lastclose(struct drm_device *dev) DRM_AUTH | DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC, exynos_g2d_exec_ioctl, DRM_AUTH | DRM_RENDER_ALLOW), - DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY, exynos_drm_ipp_get_property, - DRM_AUTH | DRM_RENDER_ALLOW), - DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY, exynos_drm_ipp_set_property, - DRM_AUTH | DRM_RENDER_ALLOW), - DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF, exynos_drm_ipp_queue_buf, - DRM_AUTH | DRM_RENDER_ALLOW), - DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL, exynos_drm_ipp_cmd_ctrl, - DRM_AUTH | DRM_RENDER_ALLOW), };

static const struct file_operations exynos_drm_driver_fops = { @@ -272,9 +263,6 @@ struct exynos_drm_driver_info { }, { DRV_PTR(gsc_driver, CONFIG_DRM_EXYNOS_GSC), }, { - DRV_PTR(ipp_driver, CONFIG_DRM_EXYNOS_IPP), - DRM_VIRTUAL_DEVICE - }, { &exynos_drm_platform_driver, DRM_VIRTUAL_DEVICE } diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index cf131c2aa23e..21f4271c012a 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -185,7 +185,6 @@ struct exynos_drm_g2d_private {

struct drm_exynos_file_private { struct exynos_drm_g2d_private *g2d_priv; - struct device *ipp_dev; };

/* @@ -292,6 +291,5 @@ int exynos_atomic_commit(struct drm_device *dev, struct drm_atomic_state *state, extern struct platform_driver fimc_driver; extern struct platform_driver rotator_driver; extern struct platform_driver gsc_driver; -extern struct platform_driver ipp_driver; extern struct platform_driver mic_driver; #endif diff --git a/drivers/gpu/drm/exynos/exynos_drm_ipp.c b/drivers/gpu/drm/exynos/exynos_drm_ipp.c deleted file mode 100644 index 3edda18cc2d2..000000000000 --- a/drivers/gpu/drm/exynos/exynos_drm_ipp.c +++ /dev/null @@ -1,1806 +0,0 @@ -/* - * Copyright (C) 2012 Samsung Electronics Co.Ltd - * Authors: - * Eunchul Kim chulspro.kim@samsung.com - * Jinyoung Jeon jy0.jeon@samsung.com - * Sangmin Lee lsmin.lee@samsung.com - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - */ -#include <linux/kernel.h> -#include <linux/platform_device.h> -#include <linux/types.h> -#include <linux/clk.h> -#include <linux/pm_runtime.h> - -#include <drm/drmP.h> -#include <drm/exynos_drm.h> -#include "exynos_drm_drv.h" -#include "exynos_drm_gem.h" -#include "exynos_drm_ipp.h" -#include "exynos_drm_iommu.h" - -/* - * IPP stands for Image Post Processing and - * supports image scaler/rotator and input/output DMA operations. - * using FIMC, GSC, Rotator, so on. - * IPP is integration device driver of same attribute h/w - */ - -/* - * TODO - * 1. expand command control id. - * 2. integrate property and config. - * 3. removed send_event id check routine. - * 4. compare send_event id if needed. - * 5. free subdrv_remove notifier callback list if needed. - * 6. need to check subdrv_open about multi-open. - * 7. need to power_on implement power and sysmmu ctrl. - */ - -#define get_ipp_context(dev) platform_get_drvdata(to_platform_device(dev)) -#define ipp_is_m2m_cmd(c) (c == IPP_CMD_M2M) - -/* - * A structure of event. - * - * @base: base of event. - * @event: ipp event. - */ -struct drm_exynos_ipp_send_event { - struct drm_pending_event base; - struct drm_exynos_ipp_event event; -}; - -/* - * A structure of memory node. - * - * @list: list head to memory queue information. - * @ops_id: id of operations. - * @prop_id: id of property. - * @buf_id: id of buffer. - * @buf_info: gem objects and dma address, size. - * @filp: a pointer to drm_file. - */ -struct drm_exynos_ipp_mem_node { - struct list_head list; - enum drm_exynos_ops_id ops_id; - u32 prop_id; - u32 buf_id; - struct drm_exynos_ipp_buf_info buf_info; -}; - -/* - * A structure of ipp context. - * - * @subdrv: prepare initialization using subdrv. - * @ipp_lock: lock for synchronization of access to ipp_idr. - * @prop_lock: lock for synchronization of access to prop_idr. - * @ipp_idr: ipp driver idr. - * @prop_idr: property idr. - * @event_workq: event work queue. - * @cmd_workq: command work queue. - */ -struct ipp_context { - struct exynos_drm_subdrv subdrv; - struct mutex ipp_lock; - struct mutex prop_lock; - struct idr ipp_idr; - struct idr prop_idr; - struct workqueue_struct *event_workq; - struct workqueue_struct *cmd_workq; -}; - -static LIST_HEAD(exynos_drm_ippdrv_list); -static DEFINE_MUTEX(exynos_drm_ippdrv_lock); -static BLOCKING_NOTIFIER_HEAD(exynos_drm_ippnb_list); - -int exynos_drm_ippdrv_register(struct exynos_drm_ippdrv *ippdrv) -{ - mutex_lock(&exynos_drm_ippdrv_lock); - list_add_tail(&ippdrv->drv_list, &exynos_drm_ippdrv_list); - mutex_unlock(&exynos_drm_ippdrv_lock); - - return 0; -} - -int exynos_drm_ippdrv_unregister(struct exynos_drm_ippdrv *ippdrv) -{ - mutex_lock(&exynos_drm_ippdrv_lock); - list_del(&ippdrv->drv_list); - mutex_unlock(&exynos_drm_ippdrv_lock); - - return 0; -} - -static int ipp_create_id(struct idr *id_idr, struct mutex *lock, void *obj) -{ - int ret; - - mutex_lock(lock); - ret = idr_alloc(id_idr, obj, 1, 0, GFP_KERNEL); - mutex_unlock(lock); - - return ret; -} - -static void ipp_remove_id(struct idr *id_idr, struct mutex *lock, u32 id) -{ - mutex_lock(lock); - idr_remove(id_idr, id); - mutex_unlock(lock); -} - -static void *ipp_find_obj(struct idr *id_idr, struct mutex *lock, u32 id) -{ - void *obj; - - mutex_lock(lock); - obj = idr_find(id_idr, id); - mutex_unlock(lock); - - return obj; -} - -static int ipp_check_driver(struct exynos_drm_ippdrv *ippdrv, - struct drm_exynos_ipp_property *property) -{ - if (ippdrv->dedicated || (!ipp_is_m2m_cmd(property->cmd) && - !pm_runtime_suspended(ippdrv->dev))) - return -EBUSY; - - if (ippdrv->check_property && - ippdrv->check_property(ippdrv->dev, property)) - return -EINVAL; - - return 0; -} - -static struct exynos_drm_ippdrv *ipp_find_driver(struct ipp_context *ctx, - struct drm_exynos_ipp_property *property) -{ - struct exynos_drm_ippdrv *ippdrv; - u32 ipp_id = property->ipp_id; - int ret; - - if (ipp_id) { - ippdrv = ipp_find_obj(&ctx->ipp_idr, &ctx->ipp_lock, ipp_id); - if (!ippdrv) { - DRM_DEBUG("ipp%d driver not found\n", ipp_id); - return ERR_PTR(-ENODEV); - } - - ret = ipp_check_driver(ippdrv, property); - if (ret < 0) { - DRM_DEBUG("ipp%d driver check error %d\n", ipp_id, ret); - return ERR_PTR(ret); - } - - return ippdrv; - } else { - list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) { - ret = ipp_check_driver(ippdrv, property); - if (ret == 0) - return ippdrv; - } - - DRM_DEBUG("cannot find driver suitable for given property.\n"); - } - - return ERR_PTR(-ENODEV); -} - -static struct exynos_drm_ippdrv *ipp_find_drv_by_handle(u32 prop_id) -{ - struct exynos_drm_ippdrv *ippdrv; - struct drm_exynos_ipp_cmd_node *c_node; - int count = 0; - - DRM_DEBUG_KMS("prop_id[%d]\n", prop_id); - - /* - * This case is search ipp driver by prop_id handle. - * sometimes, ipp subsystem find driver by prop_id. - * e.g PAUSE state, queue buf, command control. - */ - list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) { - DRM_DEBUG_KMS("count[%d]ippdrv[%pK]\n", count++, ippdrv); - - mutex_lock(&ippdrv->cmd_lock); - list_for_each_entry(c_node, &ippdrv->cmd_list, list) { - if (c_node->property.prop_id == prop_id) { - mutex_unlock(&ippdrv->cmd_lock); - return ippdrv; - } - } - mutex_unlock(&ippdrv->cmd_lock); - } - - return ERR_PTR(-ENODEV); -} - -int exynos_drm_ipp_get_property(struct drm_device *drm_dev, void *data, - struct drm_file *file) -{ - struct drm_exynos_file_private *file_priv = file->driver_priv; - struct device *dev = file_priv->ipp_dev; - struct ipp_context *ctx = get_ipp_context(dev); - struct drm_exynos_ipp_prop_list *prop_list = data; - struct exynos_drm_ippdrv *ippdrv; - int count = 0; - - if (!ctx) { - DRM_ERROR("invalid context.\n"); - return -EINVAL; - } - - if (!prop_list) { - DRM_ERROR("invalid property parameter.\n"); - return -EINVAL; - } - - DRM_DEBUG_KMS("ipp_id[%d]\n", prop_list->ipp_id); - - if (!prop_list->ipp_id) { - list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) - count++; - - /* - * Supports ippdrv list count for user application. - * First step user application getting ippdrv count. - * and second step getting ippdrv capability using ipp_id. - */ - prop_list->count = count; - } else { - /* - * Getting ippdrv capability by ipp_id. - * some device not supported wb, output interface. - * so, user application detect correct ipp driver - * using this ioctl. - */ - ippdrv = ipp_find_obj(&ctx->ipp_idr, &ctx->ipp_lock, - prop_list->ipp_id); - if (!ippdrv) { - DRM_ERROR("not found ipp%d driver.\n", - prop_list->ipp_id); - return -ENODEV; - } - - *prop_list = ippdrv->prop_list; - } - - return 0; -} - -static void ipp_print_property(struct drm_exynos_ipp_property *property, - int idx) -{ - struct drm_exynos_ipp_config *config = &property->config[idx]; - struct drm_exynos_pos *pos = &config->pos; - struct drm_exynos_sz *sz = &config->sz; - - DRM_DEBUG_KMS("prop_id[%d]ops[%s]fmt[0x%x]\n", - property->prop_id, idx ? "dst" : "src", config->fmt); - - DRM_DEBUG_KMS("pos[%d %d %d %d]sz[%d %d]f[%d]r[%d]\n", - pos->x, pos->y, pos->w, pos->h, - sz->hsize, sz->vsize, config->flip, config->degree); -} - -static struct drm_exynos_ipp_cmd_work *ipp_create_cmd_work(void) -{ - struct drm_exynos_ipp_cmd_work *cmd_work; - - cmd_work = kzalloc(sizeof(*cmd_work), GFP_KERNEL); - if (!cmd_work) - return ERR_PTR(-ENOMEM); - - INIT_WORK((struct work_struct *)cmd_work, ipp_sched_cmd); - - return cmd_work; -} - -static struct drm_exynos_ipp_event_work *ipp_create_event_work(void) -{ - struct drm_exynos_ipp_event_work *event_work; - - event_work = kzalloc(sizeof(*event_work), GFP_KERNEL); - if (!event_work) - return ERR_PTR(-ENOMEM); - - INIT_WORK(&event_work->work, ipp_sched_event); - - return event_work; -} - -int exynos_drm_ipp_set_property(struct drm_device *drm_dev, void *data, - struct drm_file *file) -{ - struct drm_exynos_file_private *file_priv = file->driver_priv; - struct device *dev = file_priv->ipp_dev; - struct ipp_context *ctx = get_ipp_context(dev); - struct drm_exynos_ipp_property *property = data; - struct exynos_drm_ippdrv *ippdrv; - struct drm_exynos_ipp_cmd_node *c_node; - u32 prop_id; - int ret, i; - - if (!ctx) { - DRM_ERROR("invalid context.\n"); - return -EINVAL; - } - - if (!property) { - DRM_ERROR("invalid property parameter.\n"); - return -EINVAL; - } - - prop_id = property->prop_id; - - /* - * This is log print for user application property. - * user application set various property. - */ - for_each_ipp_ops(i) - ipp_print_property(property, i); - - /* - * In case prop_id is not zero try to set existing property. - */ - if (prop_id) { - c_node = ipp_find_obj(&ctx->prop_idr, &ctx->prop_lock, prop_id); - - if (!c_node || c_node->filp != file) { - DRM_DEBUG_KMS("prop_id[%d] not found\n", prop_id); - return -EINVAL; - } - - if (c_node->state != IPP_STATE_STOP) { - DRM_DEBUG_KMS("prop_id[%d] not stopped\n", prop_id); - return -EINVAL; - } - - c_node->property = *property; - - return 0; - } - - /* find ipp driver using ipp id */ - ippdrv = ipp_find_driver(ctx, property); - if (IS_ERR(ippdrv)) { - DRM_ERROR("failed to get ipp driver.\n"); - return -EINVAL; - } - - /* allocate command node */ - c_node = kzalloc(sizeof(*c_node), GFP_KERNEL); - if (!c_node) - return -ENOMEM; - - ret = ipp_create_id(&ctx->prop_idr, &ctx->prop_lock, c_node); - if (ret < 0) { - DRM_ERROR("failed to create id.\n"); - goto err_clear; - } - property->prop_id = ret; - - DRM_DEBUG_KMS("created prop_id[%d]cmd[%d]ippdrv[%pK]\n", - property->prop_id, property->cmd, ippdrv); - - /* stored property information and ippdrv in private data */ - c_node->property = *property; - c_node->state = IPP_STATE_IDLE; - c_node->filp = file; - - c_node->start_work = ipp_create_cmd_work(); - if (IS_ERR(c_node->start_work)) { - DRM_ERROR("failed to create start work.\n"); - ret = PTR_ERR(c_node->start_work); - goto err_remove_id; - } - - c_node->stop_work = ipp_create_cmd_work(); - if (IS_ERR(c_node->stop_work)) { - DRM_ERROR("failed to create stop work.\n"); - ret = PTR_ERR(c_node->stop_work); - goto err_free_start; - } - - c_node->event_work = ipp_create_event_work(); - if (IS_ERR(c_node->event_work)) { - DRM_ERROR("failed to create event work.\n"); - ret = PTR_ERR(c_node->event_work); - goto err_free_stop; - } - - mutex_init(&c_node->lock); - mutex_init(&c_node->mem_lock); - mutex_init(&c_node->event_lock); - - init_completion(&c_node->start_complete); - init_completion(&c_node->stop_complete); - - for_each_ipp_ops(i) - INIT_LIST_HEAD(&c_node->mem_list[i]); - - INIT_LIST_HEAD(&c_node->event_list); - mutex_lock(&ippdrv->cmd_lock); - list_add_tail(&c_node->list, &ippdrv->cmd_list); - mutex_unlock(&ippdrv->cmd_lock); - - /* make dedicated state without m2m */ - if (!ipp_is_m2m_cmd(property->cmd)) - ippdrv->dedicated = true; - - return 0; - -err_free_stop: - kfree(c_node->stop_work); -err_free_start: - kfree(c_node->start_work); -err_remove_id: - ipp_remove_id(&ctx->prop_idr, &ctx->prop_lock, property->prop_id); -err_clear: - kfree(c_node); - return ret; -} - -static int ipp_validate_mem_node(struct drm_device *drm_dev, - struct drm_exynos_ipp_mem_node *m_node, - struct drm_exynos_ipp_cmd_node *c_node) -{ - struct drm_exynos_ipp_config *ipp_cfg; - unsigned int num_plane; - unsigned long size, buf_size = 0, plane_size, img_size = 0; - unsigned int bpp, width, height; - int i; - - ipp_cfg = &c_node->property.config[m_node->ops_id]; - num_plane = drm_format_num_planes(ipp_cfg->fmt); - - /** - * This is a rather simplified validation of a memory node. - * It basically verifies provided gem object handles - * and the buffer sizes with respect to current configuration. - * This is not the best that can be done - * but it seems more than enough - */ - for (i = 0; i < num_plane; ++i) { - width = ipp_cfg->sz.hsize; - height = ipp_cfg->sz.vsize; - bpp = drm_format_plane_cpp(ipp_cfg->fmt, i); - - /* - * The result of drm_format_plane_cpp() for chroma planes must - * be used with drm_format_xxxx_chroma_subsampling() for - * correct result. - */ - if (i > 0) { - width /= drm_format_horz_chroma_subsampling( - ipp_cfg->fmt); - height /= drm_format_vert_chroma_subsampling( - ipp_cfg->fmt); - } - plane_size = width * height * bpp; - img_size += plane_size; - - if (m_node->buf_info.handles[i]) { - size = exynos_drm_gem_get_size(drm_dev, - m_node->buf_info.handles[i], - c_node->filp); - if (plane_size > size) { - DRM_ERROR( - "buffer %d is smaller than required\n", - i); - return -EINVAL; - } - - buf_size += size; - } - } - - if (buf_size < img_size) { - DRM_ERROR("size of buffers(%lu) is smaller than image(%lu)\n", - buf_size, img_size); - return -EINVAL; - } - - return 0; -} - -static int ipp_put_mem_node(struct drm_device *drm_dev, - struct drm_exynos_ipp_cmd_node *c_node, - struct drm_exynos_ipp_mem_node *m_node) -{ - int i; - - DRM_DEBUG_KMS("node[%pK]\n", m_node); - - if (!m_node) { - DRM_ERROR("invalid dequeue node.\n"); - return -EFAULT; - } - - DRM_DEBUG_KMS("ops_id[%d]\n", m_node->ops_id); - - /* put gem buffer */ - for_each_ipp_planar(i) { - unsigned long handle = m_node->buf_info.handles[i]; - if (handle) - exynos_drm_gem_put_dma_addr(drm_dev, handle, - c_node->filp); - } - - list_del(&m_node->list); - kfree(m_node); - - return 0; -} - -static struct drm_exynos_ipp_mem_node - *ipp_get_mem_node(struct drm_device *drm_dev, - struct drm_exynos_ipp_cmd_node *c_node, - struct drm_exynos_ipp_queue_buf *qbuf) -{ - struct drm_exynos_ipp_mem_node *m_node; - struct drm_exynos_ipp_buf_info *buf_info; - int i; - - m_node = kzalloc(sizeof(*m_node), GFP_KERNEL); - if (!m_node) - return ERR_PTR(-ENOMEM); - - buf_info = &m_node->buf_info; - - /* operations, buffer id */ - m_node->ops_id = qbuf->ops_id; - m_node->prop_id = qbuf->prop_id; - m_node->buf_id = qbuf->buf_id; - INIT_LIST_HEAD(&m_node->list); - - DRM_DEBUG_KMS("m_node[%pK]ops_id[%d]\n", m_node, qbuf->ops_id); - DRM_DEBUG_KMS("prop_id[%d]buf_id[%d]\n", qbuf->prop_id, m_node->buf_id); - - for_each_ipp_planar(i) { - DRM_DEBUG_KMS("i[%d]handle[0x%x]\n", i, qbuf->handle[i]); - - /* get dma address by handle */ - if (qbuf->handle[i]) { - dma_addr_t *addr; - - addr = exynos_drm_gem_get_dma_addr(drm_dev, - qbuf->handle[i], c_node->filp); - if (IS_ERR(addr)) { - DRM_ERROR("failed to get addr.\n"); - ipp_put_mem_node(drm_dev, c_node, m_node); - return ERR_PTR(-EFAULT); - } - - buf_info->handles[i] = qbuf->handle[i]; - buf_info->base[i] = *addr; - DRM_DEBUG_KMS("i[%d]base[%pad]hd[0x%lx]\n", i, - &buf_info->base[i], buf_info->handles[i]); - } - } - - mutex_lock(&c_node->mem_lock); - if (ipp_validate_mem_node(drm_dev, m_node, c_node)) { - ipp_put_mem_node(drm_dev, c_node, m_node); - mutex_unlock(&c_node->mem_lock); - return ERR_PTR(-EFAULT); - } - list_add_tail(&m_node->list, &c_node->mem_list[qbuf->ops_id]); - mutex_unlock(&c_node->mem_lock); - - return m_node; -} - -static void ipp_clean_mem_nodes(struct drm_device *drm_dev, - struct drm_exynos_ipp_cmd_node *c_node, int ops) -{ - struct drm_exynos_ipp_mem_node *m_node, *tm_node; - struct list_head *head = &c_node->mem_list[ops]; - - mutex_lock(&c_node->mem_lock); - - list_for_each_entry_safe(m_node, tm_node, head, list) { - int ret; - - ret = ipp_put_mem_node(drm_dev, c_node, m_node); - if (ret) - DRM_ERROR("failed to put m_node.\n"); - } - - mutex_unlock(&c_node->mem_lock); -} - -static int ipp_get_event(struct drm_device *drm_dev, - struct drm_exynos_ipp_cmd_node *c_node, - struct drm_exynos_ipp_queue_buf *qbuf) -{ - struct drm_exynos_ipp_send_event *e; - int ret; - - DRM_DEBUG_KMS("ops_id[%d]buf_id[%d]\n", qbuf->ops_id, qbuf->buf_id); - - e = kzalloc(sizeof(*e), GFP_KERNEL); - if (!e) - return -ENOMEM; - - /* make event */ - e->event.base.type = DRM_EXYNOS_IPP_EVENT; - e->event.base.length = sizeof(e->event); - e->event.user_data = qbuf->user_data; - e->event.prop_id = qbuf->prop_id; - e->event.buf_id[EXYNOS_DRM_OPS_DST] = qbuf->buf_id; - - ret = drm_event_reserve_init(drm_dev, c_node->filp, &e->base, &e->event.base); - if (ret) { - kfree(e); - return ret; - } - - mutex_lock(&c_node->event_lock); - list_add_tail(&e->base.link, &c_node->event_list); - mutex_unlock(&c_node->event_lock); - - return 0; -} - -static void ipp_put_event(struct drm_exynos_ipp_cmd_node *c_node, - struct drm_exynos_ipp_queue_buf *qbuf) -{ - struct drm_exynos_ipp_send_event *e, *te; - int count = 0; - - mutex_lock(&c_node->event_lock); - list_for_each_entry_safe(e, te, &c_node->event_list, base.link) { - DRM_DEBUG_KMS("count[%d]e[%pK]\n", count++, e); - - /* - * qbuf == NULL condition means all event deletion. - * stop operations want to delete all event list. - * another case delete only same buf id. - */ - if (!qbuf) { - /* delete list */ - list_del(&e->base.link); - kfree(e); - } - - /* compare buffer id */ - if (qbuf && (qbuf->buf_id == - e->event.buf_id[EXYNOS_DRM_OPS_DST])) { - /* delete list */ - list_del(&e->base.link); - kfree(e); - goto out_unlock; - } - } - -out_unlock: - mutex_unlock(&c_node->event_lock); - return; -} - -static void ipp_clean_cmd_node(struct ipp_context *ctx, - struct drm_exynos_ipp_cmd_node *c_node) -{ - int i; - - /* cancel works */ - cancel_work_sync(&c_node->start_work->work); - cancel_work_sync(&c_node->stop_work->work); - cancel_work_sync(&c_node->event_work->work); - - /* put event */ - ipp_put_event(c_node, NULL); - - for_each_ipp_ops(i) - ipp_clean_mem_nodes(ctx->subdrv.drm_dev, c_node, i); - - /* delete list */ - list_del(&c_node->list); - - ipp_remove_id(&ctx->prop_idr, &ctx->prop_lock, - c_node->property.prop_id); - - /* destroy mutex */ - mutex_destroy(&c_node->lock); - mutex_destroy(&c_node->mem_lock); - mutex_destroy(&c_node->event_lock); - - /* free command node */ - kfree(c_node->start_work); - kfree(c_node->stop_work); - kfree(c_node->event_work); - kfree(c_node); -} - -static bool ipp_check_mem_list(struct drm_exynos_ipp_cmd_node *c_node) -{ - switch (c_node->property.cmd) { - case IPP_CMD_WB: - return !list_empty(&c_node->mem_list[EXYNOS_DRM_OPS_DST]); - case IPP_CMD_OUTPUT: - return !list_empty(&c_node->mem_list[EXYNOS_DRM_OPS_SRC]); - case IPP_CMD_M2M: - default: - return !list_empty(&c_node->mem_list[EXYNOS_DRM_OPS_SRC]) && - !list_empty(&c_node->mem_list[EXYNOS_DRM_OPS_DST]); - } -} - -static struct drm_exynos_ipp_mem_node - *ipp_find_mem_node(struct drm_exynos_ipp_cmd_node *c_node, - struct drm_exynos_ipp_queue_buf *qbuf) -{ - struct drm_exynos_ipp_mem_node *m_node; - struct list_head *head; - int count = 0; - - DRM_DEBUG_KMS("buf_id[%d]\n", qbuf->buf_id); - - /* source/destination memory list */ - head = &c_node->mem_list[qbuf->ops_id]; - - /* find memory node from memory list */ - list_for_each_entry(m_node, head, list) { - DRM_DEBUG_KMS("count[%d]m_node[%pK]\n", count++, m_node); - - /* compare buffer id */ - if (m_node->buf_id == qbuf->buf_id) - return m_node; - } - - return NULL; -} - -static int ipp_set_mem_node(struct exynos_drm_ippdrv *ippdrv, - struct drm_exynos_ipp_cmd_node *c_node, - struct drm_exynos_ipp_mem_node *m_node) -{ - struct exynos_drm_ipp_ops *ops = NULL; - int ret = 0; - - DRM_DEBUG_KMS("node[%pK]\n", m_node); - - if (!m_node) { - DRM_ERROR("invalid queue node.\n"); - return -EFAULT; - } - - DRM_DEBUG_KMS("ops_id[%d]\n", m_node->ops_id); - - /* get operations callback */ - ops = ippdrv->ops[m_node->ops_id]; - if (!ops) { - DRM_ERROR("not support ops.\n"); - return -EFAULT; - } - - /* set address and enable irq */ - if (ops->set_addr) { - ret = ops->set_addr(ippdrv->dev, &m_node->buf_info, - m_node->buf_id, IPP_BUF_ENQUEUE); - if (ret) { - DRM_ERROR("failed to set addr.\n"); - return ret; - } - } - - return ret; -} - -static void ipp_handle_cmd_work(struct device *dev, - struct exynos_drm_ippdrv *ippdrv, - struct drm_exynos_ipp_cmd_work *cmd_work, - struct drm_exynos_ipp_cmd_node *c_node) -{ - struct ipp_context *ctx = get_ipp_context(dev); - - cmd_work->ippdrv = ippdrv; - cmd_work->c_node = c_node; - queue_work(ctx->cmd_workq, &cmd_work->work); -} - -static int ipp_queue_buf_with_run(struct device *dev, - struct drm_exynos_ipp_cmd_node *c_node, - struct drm_exynos_ipp_mem_node *m_node, - struct drm_exynos_ipp_queue_buf *qbuf) -{ - struct exynos_drm_ippdrv *ippdrv; - struct drm_exynos_ipp_property *property; - struct exynos_drm_ipp_ops *ops; - int ret; - - ippdrv = ipp_find_drv_by_handle(qbuf->prop_id); - if (IS_ERR(ippdrv)) { - DRM_ERROR("failed to get ipp driver.\n"); - return -EFAULT; - } - - ops = ippdrv->ops[qbuf->ops_id]; - if (!ops) { - DRM_ERROR("failed to get ops.\n"); - return -EFAULT; - } - - property = &c_node->property; - - if (c_node->state != IPP_STATE_START) { - DRM_DEBUG_KMS("bypass for invalid state.\n"); - return 0; - } - - mutex_lock(&c_node->mem_lock); - if (!ipp_check_mem_list(c_node)) { - mutex_unlock(&c_node->mem_lock); - DRM_DEBUG_KMS("empty memory.\n"); - return 0; - } - - /* - * If set destination buffer and enabled clock, - * then m2m operations need start operations at queue_buf - */ - if (ipp_is_m2m_cmd(property->cmd)) { - struct drm_exynos_ipp_cmd_work *cmd_work = c_node->start_work; - - cmd_work->ctrl = IPP_CTRL_PLAY; - ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node); - } else { - ret = ipp_set_mem_node(ippdrv, c_node, m_node); - if (ret) { - mutex_unlock(&c_node->mem_lock); - DRM_ERROR("failed to set m node.\n"); - return ret; - } - } - mutex_unlock(&c_node->mem_lock); - - return 0; -} - -static void ipp_clean_queue_buf(struct drm_device *drm_dev, - struct drm_exynos_ipp_cmd_node *c_node, - struct drm_exynos_ipp_queue_buf *qbuf) -{ - struct drm_exynos_ipp_mem_node *m_node, *tm_node; - - /* delete list */ - mutex_lock(&c_node->mem_lock); - list_for_each_entry_safe(m_node, tm_node, - &c_node->mem_list[qbuf->ops_id], list) { - if (m_node->buf_id == qbuf->buf_id && - m_node->ops_id == qbuf->ops_id) - ipp_put_mem_node(drm_dev, c_node, m_node); - } - mutex_unlock(&c_node->mem_lock); -} - -int exynos_drm_ipp_queue_buf(struct drm_device *drm_dev, void *data, - struct drm_file *file) -{ - struct drm_exynos_file_private *file_priv = file->driver_priv; - struct device *dev = file_priv->ipp_dev; - struct ipp_context *ctx = get_ipp_context(dev); - struct drm_exynos_ipp_queue_buf *qbuf = data; - struct drm_exynos_ipp_cmd_node *c_node; - struct drm_exynos_ipp_mem_node *m_node; - int ret; - - if (!qbuf) { - DRM_ERROR("invalid buf parameter.\n"); - return -EINVAL; - } - - if (qbuf->ops_id >= EXYNOS_DRM_OPS_MAX) { - DRM_ERROR("invalid ops parameter.\n"); - return -EINVAL; - } - - DRM_DEBUG_KMS("prop_id[%d]ops_id[%s]buf_id[%d]buf_type[%d]\n", - qbuf->prop_id, qbuf->ops_id ? "dst" : "src", - qbuf->buf_id, qbuf->buf_type); - - /* find command node */ - c_node = ipp_find_obj(&ctx->prop_idr, &ctx->prop_lock, - qbuf->prop_id); - if (!c_node || c_node->filp != file) { - DRM_ERROR("failed to get command node.\n"); - return -ENODEV; - } - - /* buffer control */ - switch (qbuf->buf_type) { - case IPP_BUF_ENQUEUE: - /* get memory node */ - m_node = ipp_get_mem_node(drm_dev, c_node, qbuf); - if (IS_ERR(m_node)) { - DRM_ERROR("failed to get m_node.\n"); - return PTR_ERR(m_node); - } - - /* - * first step get event for destination buffer. - * and second step when M2M case run with destination buffer - * if needed. - */ - if (qbuf->ops_id == EXYNOS_DRM_OPS_DST) { - /* get event for destination buffer */ - ret = ipp_get_event(drm_dev, c_node, qbuf); - if (ret) { - DRM_ERROR("failed to get event.\n"); - goto err_clean_node; - } - - /* - * M2M case run play control for streaming feature. - * other case set address and waiting. - */ - ret = ipp_queue_buf_with_run(dev, c_node, m_node, qbuf); - if (ret) { - DRM_ERROR("failed to run command.\n"); - goto err_clean_node; - } - } - break; - case IPP_BUF_DEQUEUE: - mutex_lock(&c_node->lock); - - /* put event for destination buffer */ - if (qbuf->ops_id == EXYNOS_DRM_OPS_DST) - ipp_put_event(c_node, qbuf); - - ipp_clean_queue_buf(drm_dev, c_node, qbuf); - - mutex_unlock(&c_node->lock); - break; - default: - DRM_ERROR("invalid buffer control.\n"); - return -EINVAL; - } - - return 0; - -err_clean_node: - DRM_ERROR("clean memory nodes.\n"); - - ipp_clean_queue_buf(drm_dev, c_node, qbuf); - return ret; -} - -static bool exynos_drm_ipp_check_valid(struct device *dev, - enum drm_exynos_ipp_ctrl ctrl, enum drm_exynos_ipp_state state) -{ - if (ctrl != IPP_CTRL_PLAY) { - if (pm_runtime_suspended(dev)) { - DRM_ERROR("pm:runtime_suspended.\n"); - goto err_status; - } - } - - switch (ctrl) { - case IPP_CTRL_PLAY: - if (state != IPP_STATE_IDLE) - goto err_status; - break; - case IPP_CTRL_STOP: - if (state == IPP_STATE_STOP) - goto err_status; - break; - case IPP_CTRL_PAUSE: - if (state != IPP_STATE_START) - goto err_status; - break; - case IPP_CTRL_RESUME: - if (state != IPP_STATE_STOP) - goto err_status; - break; - default: - DRM_ERROR("invalid state.\n"); - goto err_status; - } - - return true; - -err_status: - DRM_ERROR("invalid status:ctrl[%d]state[%d]\n", ctrl, state); - return false; -} - -int exynos_drm_ipp_cmd_ctrl(struct drm_device *drm_dev, void *data, - struct drm_file *file) -{ - struct drm_exynos_file_private *file_priv = file->driver_priv; - struct exynos_drm_ippdrv *ippdrv = NULL; - struct device *dev = file_priv->ipp_dev; - struct ipp_context *ctx = get_ipp_context(dev); - struct drm_exynos_ipp_cmd_ctrl *cmd_ctrl = data; - struct drm_exynos_ipp_cmd_work *cmd_work; - struct drm_exynos_ipp_cmd_node *c_node; - - if (!ctx) { - DRM_ERROR("invalid context.\n"); - return -EINVAL; - } - - if (!cmd_ctrl) { - DRM_ERROR("invalid control parameter.\n"); - return -EINVAL; - } - - DRM_DEBUG_KMS("ctrl[%d]prop_id[%d]\n", - cmd_ctrl->ctrl, cmd_ctrl->prop_id); - - ippdrv = ipp_find_drv_by_handle(cmd_ctrl->prop_id); - if (IS_ERR(ippdrv)) { - DRM_ERROR("failed to get ipp driver.\n"); - return PTR_ERR(ippdrv); - } - - c_node = ipp_find_obj(&ctx->prop_idr, &ctx->prop_lock, - cmd_ctrl->prop_id); - if (!c_node || c_node->filp != file) { - DRM_ERROR("invalid command node list.\n"); - return -ENODEV; - } - - if (!exynos_drm_ipp_check_valid(ippdrv->dev, cmd_ctrl->ctrl, - c_node->state)) { - DRM_ERROR("invalid state.\n"); - return -EINVAL; - } - - switch (cmd_ctrl->ctrl) { - case IPP_CTRL_PLAY: - if (pm_runtime_suspended(ippdrv->dev)) - pm_runtime_get_sync(ippdrv->dev); - - c_node->state = IPP_STATE_START; - - cmd_work = c_node->start_work; - cmd_work->ctrl = cmd_ctrl->ctrl; - ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node); - break; - case IPP_CTRL_STOP: - cmd_work = c_node->stop_work; - cmd_work->ctrl = cmd_ctrl->ctrl; - ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node); - - if (!wait_for_completion_timeout(&c_node->stop_complete, - msecs_to_jiffies(300))) { - DRM_ERROR("timeout stop:prop_id[%d]\n", - c_node->property.prop_id); - } - - c_node->state = IPP_STATE_STOP; - ippdrv->dedicated = false; - mutex_lock(&ippdrv->cmd_lock); - ipp_clean_cmd_node(ctx, c_node); - - if (list_empty(&ippdrv->cmd_list)) - pm_runtime_put_sync(ippdrv->dev); - mutex_unlock(&ippdrv->cmd_lock); - break; - case IPP_CTRL_PAUSE: - cmd_work = c_node->stop_work; - cmd_work->ctrl = cmd_ctrl->ctrl; - ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node); - - if (!wait_for_completion_timeout(&c_node->stop_complete, - msecs_to_jiffies(200))) { - DRM_ERROR("timeout stop:prop_id[%d]\n", - c_node->property.prop_id); - } - - c_node->state = IPP_STATE_STOP; - break; - case IPP_CTRL_RESUME: - c_node->state = IPP_STATE_START; - cmd_work = c_node->start_work; - cmd_work->ctrl = cmd_ctrl->ctrl; - ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node); - break; - default: - DRM_ERROR("could not support this state currently.\n"); - return -EINVAL; - } - - DRM_DEBUG_KMS("done ctrl[%d]prop_id[%d]\n", - cmd_ctrl->ctrl, cmd_ctrl->prop_id); - - return 0; -} - -int exynos_drm_ippnb_register(struct notifier_block *nb) -{ - return blocking_notifier_chain_register( - &exynos_drm_ippnb_list, nb); -} - -int exynos_drm_ippnb_unregister(struct notifier_block *nb) -{ - return blocking_notifier_chain_unregister( - &exynos_drm_ippnb_list, nb); -} - -int exynos_drm_ippnb_send_event(unsigned long val, void *v) -{ - return blocking_notifier_call_chain( - &exynos_drm_ippnb_list, val, v); -} - -static int ipp_set_property(struct exynos_drm_ippdrv *ippdrv, - struct drm_exynos_ipp_property *property) -{ - struct exynos_drm_ipp_ops *ops = NULL; - bool swap = false; - int ret, i; - - if (!property) { - DRM_ERROR("invalid property parameter.\n"); - return -EINVAL; - } - - DRM_DEBUG_KMS("prop_id[%d]\n", property->prop_id); - - /* reset h/w block */ - if (ippdrv->reset && - ippdrv->reset(ippdrv->dev)) { - return -EINVAL; - } - - /* set source,destination operations */ - for_each_ipp_ops(i) { - struct drm_exynos_ipp_config *config = - &property->config[i]; - - ops = ippdrv->ops[i]; - if (!ops || !config) { - DRM_ERROR("not support ops and config.\n"); - return -EINVAL; - } - - /* set format */ - if (ops->set_fmt) { - ret = ops->set_fmt(ippdrv->dev, config->fmt); - if (ret) - return ret; - } - - /* set transform for rotation, flip */ - if (ops->set_transf) { - ret = ops->set_transf(ippdrv->dev, config->degree, - config->flip, &swap); - if (ret) - return ret; - } - - /* set size */ - if (ops->set_size) { - ret = ops->set_size(ippdrv->dev, swap, &config->pos, - &config->sz); - if (ret) - return ret; - } - } - - return 0; -} - -static int ipp_start_property(struct exynos_drm_ippdrv *ippdrv, - struct drm_exynos_ipp_cmd_node *c_node) -{ - struct drm_exynos_ipp_mem_node *m_node; - struct drm_exynos_ipp_property *property = &c_node->property; - struct list_head *head; - int ret, i; - - DRM_DEBUG_KMS("prop_id[%d]\n", property->prop_id); - - /* store command info in ippdrv */ - ippdrv->c_node = c_node; - - mutex_lock(&c_node->mem_lock); - if (!ipp_check_mem_list(c_node)) { - DRM_DEBUG_KMS("empty memory.\n"); - ret = -ENOMEM; - goto err_unlock; - } - - /* set current property in ippdrv */ - ret = ipp_set_property(ippdrv, property); - if (ret) { - DRM_ERROR("failed to set property.\n"); - ippdrv->c_node = NULL; - goto err_unlock; - } - - /* check command */ - switch (property->cmd) { - case IPP_CMD_M2M: - for_each_ipp_ops(i) { - /* source/destination memory list */ - head = &c_node->mem_list[i]; - - m_node = list_first_entry(head, - struct drm_exynos_ipp_mem_node, list); - - DRM_DEBUG_KMS("m_node[%pK]\n", m_node); - - ret = ipp_set_mem_node(ippdrv, c_node, m_node); - if (ret) { - DRM_ERROR("failed to set m node.\n"); - goto err_unlock; - } - } - break; - case IPP_CMD_WB: - /* destination memory list */ - head = &c_node->mem_list[EXYNOS_DRM_OPS_DST]; - - list_for_each_entry(m_node, head, list) { - ret = ipp_set_mem_node(ippdrv, c_node, m_node); - if (ret) { - DRM_ERROR("failed to set m node.\n"); - goto err_unlock; - } - } - break; - case IPP_CMD_OUTPUT: - /* source memory list */ - head = &c_node->mem_list[EXYNOS_DRM_OPS_SRC]; - - list_for_each_entry(m_node, head, list) { - ret = ipp_set_mem_node(ippdrv, c_node, m_node); - if (ret) { - DRM_ERROR("failed to set m node.\n"); - goto err_unlock; - } - } - break; - default: - DRM_ERROR("invalid operations.\n"); - ret = -EINVAL; - goto err_unlock; - } - mutex_unlock(&c_node->mem_lock); - - DRM_DEBUG_KMS("cmd[%d]\n", property->cmd); - - /* start operations */ - if (ippdrv->start) { - ret = ippdrv->start(ippdrv->dev, property->cmd); - if (ret) { - DRM_ERROR("failed to start ops.\n"); - ippdrv->c_node = NULL; - return ret; - } - } - - return 0; - -err_unlock: - mutex_unlock(&c_node->mem_lock); - ippdrv->c_node = NULL; - return ret; -} - -static int ipp_stop_property(struct drm_device *drm_dev, - struct exynos_drm_ippdrv *ippdrv, - struct drm_exynos_ipp_cmd_node *c_node) -{ - struct drm_exynos_ipp_property *property = &c_node->property; - int i; - - DRM_DEBUG_KMS("prop_id[%d]\n", property->prop_id); - - /* stop operations */ - if (ippdrv->stop) - ippdrv->stop(ippdrv->dev, property->cmd); - - /* check command */ - switch (property->cmd) { - case IPP_CMD_M2M: - for_each_ipp_ops(i) - ipp_clean_mem_nodes(drm_dev, c_node, i); - break; - case IPP_CMD_WB: - ipp_clean_mem_nodes(drm_dev, c_node, EXYNOS_DRM_OPS_DST); - break; - case IPP_CMD_OUTPUT: - ipp_clean_mem_nodes(drm_dev, c_node, EXYNOS_DRM_OPS_SRC); - break; - default: - DRM_ERROR("invalid operations.\n"); - return -EINVAL; - } - - return 0; -} - -void ipp_sched_cmd(struct work_struct *work) -{ - struct drm_exynos_ipp_cmd_work *cmd_work = - container_of(work, struct drm_exynos_ipp_cmd_work, work); - struct exynos_drm_ippdrv *ippdrv; - struct drm_exynos_ipp_cmd_node *c_node; - struct drm_exynos_ipp_property *property; - int ret; - - ippdrv = cmd_work->ippdrv; - if (!ippdrv) { - DRM_ERROR("invalid ippdrv list.\n"); - return; - } - - c_node = cmd_work->c_node; - if (!c_node) { - DRM_ERROR("invalid command node list.\n"); - return; - } - - mutex_lock(&c_node->lock); - - property = &c_node->property; - - switch (cmd_work->ctrl) { - case IPP_CTRL_PLAY: - case IPP_CTRL_RESUME: - ret = ipp_start_property(ippdrv, c_node); - if (ret) { - DRM_ERROR("failed to start property:prop_id[%d]\n", - c_node->property.prop_id); - goto err_unlock; - } - - /* - * M2M case supports wait_completion of transfer. - * because M2M case supports single unit operation - * with multiple queue. - * M2M need to wait completion of data transfer. - */ - if (ipp_is_m2m_cmd(property->cmd)) { - if (!wait_for_completion_timeout - (&c_node->start_complete, msecs_to_jiffies(200))) { - DRM_ERROR("timeout event:prop_id[%d]\n", - c_node->property.prop_id); - goto err_unlock; - } - } - break; - case IPP_CTRL_STOP: - case IPP_CTRL_PAUSE: - ret = ipp_stop_property(ippdrv->drm_dev, ippdrv, - c_node); - if (ret) { - DRM_ERROR("failed to stop property.\n"); - goto err_unlock; - } - - complete(&c_node->stop_complete); - break; - default: - DRM_ERROR("unknown control type\n"); - break; - } - - DRM_DEBUG_KMS("ctrl[%d] done.\n", cmd_work->ctrl); - -err_unlock: - mutex_unlock(&c_node->lock); -} - -static int ipp_send_event(struct exynos_drm_ippdrv *ippdrv, - struct drm_exynos_ipp_cmd_node *c_node, int *buf_id) -{ - struct drm_device *drm_dev = ippdrv->drm_dev; - struct drm_exynos_ipp_property *property = &c_node->property; - struct drm_exynos_ipp_mem_node *m_node; - struct drm_exynos_ipp_queue_buf qbuf; - struct drm_exynos_ipp_send_event *e; - struct list_head *head; - struct timeval now; - u32 tbuf_id[EXYNOS_DRM_OPS_MAX] = {0, }; - int ret, i; - - for_each_ipp_ops(i) - DRM_DEBUG_KMS("%s buf_id[%d]\n", i ? "dst" : "src", buf_id[i]); - - if (!drm_dev) { - DRM_ERROR("failed to get drm_dev.\n"); - return -EINVAL; - } - - if (!property) { - DRM_ERROR("failed to get property.\n"); - return -EINVAL; - } - - mutex_lock(&c_node->event_lock); - if (list_empty(&c_node->event_list)) { - DRM_DEBUG_KMS("event list is empty.\n"); - ret = 0; - goto err_event_unlock; - } - - mutex_lock(&c_node->mem_lock); - if (!ipp_check_mem_list(c_node)) { - DRM_DEBUG_KMS("empty memory.\n"); - ret = 0; - goto err_mem_unlock; - } - - /* check command */ - switch (property->cmd) { - case IPP_CMD_M2M: - for_each_ipp_ops(i) { - /* source/destination memory list */ - head = &c_node->mem_list[i]; - - m_node = list_first_entry(head, - struct drm_exynos_ipp_mem_node, list); - - tbuf_id[i] = m_node->buf_id; - DRM_DEBUG_KMS("%s buf_id[%d]\n", - i ? "dst" : "src", tbuf_id[i]); - - ret = ipp_put_mem_node(drm_dev, c_node, m_node); - if (ret) - DRM_ERROR("failed to put m_node.\n"); - } - break; - case IPP_CMD_WB: - /* clear buf for finding */ - memset(&qbuf, 0x0, sizeof(qbuf)); - qbuf.ops_id = EXYNOS_DRM_OPS_DST; - qbuf.buf_id = buf_id[EXYNOS_DRM_OPS_DST]; - - /* get memory node entry */ - m_node = ipp_find_mem_node(c_node, &qbuf); - if (!m_node) { - DRM_ERROR("empty memory node.\n"); - ret = -ENOMEM; - goto err_mem_unlock; - } - - tbuf_id[EXYNOS_DRM_OPS_DST] = m_node->buf_id; - - ret = ipp_put_mem_node(drm_dev, c_node, m_node); - if (ret) - DRM_ERROR("failed to put m_node.\n"); - break; - case IPP_CMD_OUTPUT: - /* source memory list */ - head = &c_node->mem_list[EXYNOS_DRM_OPS_SRC]; - - m_node = list_first_entry(head, - struct drm_exynos_ipp_mem_node, list); - - tbuf_id[EXYNOS_DRM_OPS_SRC] = m_node->buf_id; - - ret = ipp_put_mem_node(drm_dev, c_node, m_node); - if (ret) - DRM_ERROR("failed to put m_node.\n"); - break; - default: - DRM_ERROR("invalid operations.\n"); - ret = -EINVAL; - goto err_mem_unlock; - } - mutex_unlock(&c_node->mem_lock); - - if (tbuf_id[EXYNOS_DRM_OPS_DST] != buf_id[EXYNOS_DRM_OPS_DST]) - DRM_ERROR("failed to match buf_id[%d %d]prop_id[%d]\n", - tbuf_id[1], buf_id[1], property->prop_id); - - /* - * command node have event list of destination buffer - * If destination buffer enqueue to mem list, - * then we make event and link to event list tail. - * so, we get first event for first enqueued buffer. - */ - e = list_first_entry(&c_node->event_list, - struct drm_exynos_ipp_send_event, base.link); - - do_gettimeofday(&now); - DRM_DEBUG_KMS("tv_sec[%ld]tv_usec[%ld]\n", now.tv_sec, now.tv_usec); - e->event.tv_sec = now.tv_sec; - e->event.tv_usec = now.tv_usec; - e->event.prop_id = property->prop_id; - - /* set buffer id about source destination */ - for_each_ipp_ops(i) - e->event.buf_id[i] = tbuf_id[i]; - - drm_send_event(drm_dev, &e->base); - mutex_unlock(&c_node->event_lock); - - DRM_DEBUG_KMS("done cmd[%d]prop_id[%d]buf_id[%d]\n", - property->cmd, property->prop_id, tbuf_id[EXYNOS_DRM_OPS_DST]); - - return 0; - -err_mem_unlock: - mutex_unlock(&c_node->mem_lock); -err_event_unlock: - mutex_unlock(&c_node->event_lock); - return ret; -} - -void ipp_sched_event(struct work_struct *work) -{ - struct drm_exynos_ipp_event_work *event_work = - container_of(work, struct drm_exynos_ipp_event_work, work); - struct exynos_drm_ippdrv *ippdrv; - struct drm_exynos_ipp_cmd_node *c_node; - int ret; - - if (!event_work) { - DRM_ERROR("failed to get event_work.\n"); - return; - } - - DRM_DEBUG_KMS("buf_id[%d]\n", event_work->buf_id[EXYNOS_DRM_OPS_DST]); - - ippdrv = event_work->ippdrv; - if (!ippdrv) { - DRM_ERROR("failed to get ipp driver.\n"); - return; - } - - c_node = ippdrv->c_node; - if (!c_node) { - DRM_ERROR("failed to get command node.\n"); - return; - } - - /* - * IPP supports command thread, event thread synchronization. - * If IPP close immediately from user land, then IPP make - * synchronization with command thread, so make complete event. - * or going out operations. - */ - if (c_node->state != IPP_STATE_START) { - DRM_DEBUG_KMS("bypass state[%d]prop_id[%d]\n", - c_node->state, c_node->property.prop_id); - goto err_completion; - } - - ret = ipp_send_event(ippdrv, c_node, event_work->buf_id); - if (ret) { - DRM_ERROR("failed to send event.\n"); - goto err_completion; - } - -err_completion: - if (ipp_is_m2m_cmd(c_node->property.cmd)) - complete(&c_node->start_complete); -} - -static int ipp_subdrv_probe(struct drm_device *drm_dev, struct device *dev) -{ - struct ipp_context *ctx = get_ipp_context(dev); - struct exynos_drm_ippdrv *ippdrv; - int ret, count = 0; - - /* get ipp driver entry */ - list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) { - ippdrv->drm_dev = drm_dev; - - ret = ipp_create_id(&ctx->ipp_idr, &ctx->ipp_lock, ippdrv); - if (ret < 0) { - DRM_ERROR("failed to create id.\n"); - goto err; - } - ippdrv->prop_list.ipp_id = ret; - - DRM_DEBUG_KMS("count[%d]ippdrv[%pK]ipp_id[%d]\n", - count++, ippdrv, ret); - - /* store parent device for node */ - ippdrv->parent_dev = dev; - - /* store event work queue and handler */ - ippdrv->event_workq = ctx->event_workq; - ippdrv->sched_event = ipp_sched_event; - INIT_LIST_HEAD(&ippdrv->cmd_list); - mutex_init(&ippdrv->cmd_lock); - - ret = drm_iommu_attach_device(drm_dev, ippdrv->dev); - if (ret) { - DRM_ERROR("failed to activate iommu\n"); - goto err; - } - } - - return 0; - -err: - /* get ipp driver entry */ - list_for_each_entry_continue_reverse(ippdrv, &exynos_drm_ippdrv_list, - drv_list) { - drm_iommu_detach_device(drm_dev, ippdrv->dev); - - ipp_remove_id(&ctx->ipp_idr, &ctx->ipp_lock, - ippdrv->prop_list.ipp_id); - } - - return ret; -} - -static void ipp_subdrv_remove(struct drm_device *drm_dev, struct device *dev) -{ - struct exynos_drm_ippdrv *ippdrv, *t; - struct ipp_context *ctx = get_ipp_context(dev); - - /* get ipp driver entry */ - list_for_each_entry_safe(ippdrv, t, &exynos_drm_ippdrv_list, drv_list) { - drm_iommu_detach_device(drm_dev, ippdrv->dev); - - ipp_remove_id(&ctx->ipp_idr, &ctx->ipp_lock, - ippdrv->prop_list.ipp_id); - - ippdrv->drm_dev = NULL; - exynos_drm_ippdrv_unregister(ippdrv); - } -} - -static int ipp_subdrv_open(struct drm_device *drm_dev, struct device *dev, - struct drm_file *file) -{ - struct drm_exynos_file_private *file_priv = file->driver_priv; - - file_priv->ipp_dev = dev; - - DRM_DEBUG_KMS("done priv[%pK]\n", dev); - - return 0; -} - -static void ipp_subdrv_close(struct drm_device *drm_dev, struct device *dev, - struct drm_file *file) -{ - struct exynos_drm_ippdrv *ippdrv = NULL; - struct ipp_context *ctx = get_ipp_context(dev); - struct drm_exynos_ipp_cmd_node *c_node, *tc_node; - int count = 0; - - list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) { - mutex_lock(&ippdrv->cmd_lock); - list_for_each_entry_safe(c_node, tc_node, - &ippdrv->cmd_list, list) { - DRM_DEBUG_KMS("count[%d]ippdrv[%pK]\n", - count++, ippdrv); - - if (c_node->filp == file) { - /* - * userland goto unnormal state. process killed. - * and close the file. - * so, IPP didn't called stop cmd ctrl. - * so, we are make stop operation in this state. - */ - if (c_node->state == IPP_STATE_START) { - ipp_stop_property(drm_dev, ippdrv, - c_node); - c_node->state = IPP_STATE_STOP; - } - - ippdrv->dedicated = false; - ipp_clean_cmd_node(ctx, c_node); - if (list_empty(&ippdrv->cmd_list)) - pm_runtime_put_sync(ippdrv->dev); - } - } - mutex_unlock(&ippdrv->cmd_lock); - } - - return; -} - -static int ipp_probe(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct ipp_context *ctx; - struct exynos_drm_subdrv *subdrv; - int ret; - - ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); - if (!ctx) - return -ENOMEM; - - mutex_init(&ctx->ipp_lock); - mutex_init(&ctx->prop_lock); - - idr_init(&ctx->ipp_idr); - idr_init(&ctx->prop_idr); - - /* - * create single thread for ipp event - * IPP supports event thread for IPP drivers. - * IPP driver send event_work to this thread. - * and IPP event thread send event to user process. - */ - ctx->event_workq = create_singlethread_workqueue("ipp_event"); - if (!ctx->event_workq) { - dev_err(dev, "failed to create event workqueue\n"); - return -EINVAL; - } - - /* - * create single thread for ipp command - * IPP supports command thread for user process. - * user process make command node using set property ioctl. - * and make start_work and send this work to command thread. - * and then this command thread start property. - */ - ctx->cmd_workq = create_singlethread_workqueue("ipp_cmd"); - if (!ctx->cmd_workq) { - dev_err(dev, "failed to create cmd workqueue\n"); - ret = -EINVAL; - goto err_event_workq; - } - - /* set sub driver informations */ - subdrv = &ctx->subdrv; - subdrv->dev = dev; - subdrv->probe = ipp_subdrv_probe; - subdrv->remove = ipp_subdrv_remove; - subdrv->open = ipp_subdrv_open; - subdrv->close = ipp_subdrv_close; - - platform_set_drvdata(pdev, ctx); - - ret = exynos_drm_subdrv_register(subdrv); - if (ret < 0) { - DRM_ERROR("failed to register drm ipp device.\n"); - goto err_cmd_workq; - } - - dev_info(dev, "drm ipp registered successfully.\n"); - - return 0; - -err_cmd_workq: - destroy_workqueue(ctx->cmd_workq); -err_event_workq: - destroy_workqueue(ctx->event_workq); - return ret; -} - -static int ipp_remove(struct platform_device *pdev) -{ - struct ipp_context *ctx = platform_get_drvdata(pdev); - - /* unregister sub driver */ - exynos_drm_subdrv_unregister(&ctx->subdrv); - - /* remove,destroy ipp idr */ - idr_destroy(&ctx->ipp_idr); - idr_destroy(&ctx->prop_idr); - - mutex_destroy(&ctx->ipp_lock); - mutex_destroy(&ctx->prop_lock); - - /* destroy command, event work queue */ - destroy_workqueue(ctx->cmd_workq); - destroy_workqueue(ctx->event_workq); - - return 0; -} - -struct platform_driver ipp_driver = { - .probe = ipp_probe, - .remove = ipp_remove, - .driver = { - .name = "exynos-drm-ipp", - .owner = THIS_MODULE, - }, -}; - diff --git a/drivers/gpu/drm/exynos/exynos_drm_ipp.h b/drivers/gpu/drm/exynos/exynos_drm_ipp.h deleted file mode 100644 index 2a61547a39d0..000000000000 --- a/drivers/gpu/drm/exynos/exynos_drm_ipp.h +++ /dev/null @@ -1,252 +0,0 @@ -/* - * Copyright (c) 2012 Samsung Electronics Co., Ltd. - * - * Authors: - * Eunchul Kim chulspro.kim@samsung.com - * Jinyoung Jeon jy0.jeon@samsung.com - * Sangmin Lee lsmin.lee@samsung.com - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -#ifndef _EXYNOS_DRM_IPP_H_ -#define _EXYNOS_DRM_IPP_H_ - -#define for_each_ipp_ops(pos) \ - for (pos = 0; pos < EXYNOS_DRM_OPS_MAX; pos++) -#define for_each_ipp_planar(pos) \ - for (pos = 0; pos < EXYNOS_DRM_PLANAR_MAX; pos++) - -#define IPP_GET_LCD_WIDTH _IOR('F', 302, int) -#define IPP_GET_LCD_HEIGHT _IOR('F', 303, int) -#define IPP_SET_WRITEBACK _IOW('F', 304, u32) - -/* definition of state */ -enum drm_exynos_ipp_state { - IPP_STATE_IDLE, - IPP_STATE_START, - IPP_STATE_STOP, -}; - -/* - * A structure of command work information. - * @work: work structure. - * @ippdrv: current work ippdrv. - * @c_node: command node information. - * @ctrl: command control. - */ -struct drm_exynos_ipp_cmd_work { - struct work_struct work; - struct exynos_drm_ippdrv *ippdrv; - struct drm_exynos_ipp_cmd_node *c_node; - enum drm_exynos_ipp_ctrl ctrl; -}; - -/* - * A structure of command node. - * - * @list: list head to command queue information. - * @event_list: list head of event. - * @mem_list: list head to source,destination memory queue information. - * @lock: lock for synchronization of access to ioctl. - * @mem_lock: lock for synchronization of access to memory nodes. - * @event_lock: lock for synchronization of access to scheduled event. - * @start_complete: completion of start of command. - * @stop_complete: completion of stop of command. - * @property: property information. - * @start_work: start command work structure. - * @stop_work: stop command work structure. - * @event_work: event work structure. - * @state: state of command node. - * @filp: associated file pointer. - */ -struct drm_exynos_ipp_cmd_node { - struct list_head list; - struct list_head event_list; - struct list_head mem_list[EXYNOS_DRM_OPS_MAX]; - struct mutex lock; - struct mutex mem_lock; - struct mutex event_lock; - struct completion start_complete; - struct completion stop_complete; - struct drm_exynos_ipp_property property; - struct drm_exynos_ipp_cmd_work *start_work; - struct drm_exynos_ipp_cmd_work *stop_work; - struct drm_exynos_ipp_event_work *event_work; - enum drm_exynos_ipp_state state; - struct drm_file *filp; -}; - -/* - * A structure of buffer information. - * - * @handles: Y, Cb, Cr each gem object handle. - * @base: Y, Cb, Cr each planar address. - */ -struct drm_exynos_ipp_buf_info { - unsigned long handles[EXYNOS_DRM_PLANAR_MAX]; - dma_addr_t base[EXYNOS_DRM_PLANAR_MAX]; -}; - -/* - * A structure of wb setting information. - * - * @enable: enable flag for wb. - * @refresh: HZ of the refresh rate. - */ -struct drm_exynos_ipp_set_wb { - __u32 enable; - __u32 refresh; -}; - -/* - * A structure of event work information. - * - * @work: work structure. - * @ippdrv: current work ippdrv. - * @buf_id: id of src, dst buffer. - */ -struct drm_exynos_ipp_event_work { - struct work_struct work; - struct exynos_drm_ippdrv *ippdrv; - u32 buf_id[EXYNOS_DRM_OPS_MAX]; -}; - -/* - * A structure of source,destination operations. - * - * @set_fmt: set format of image. - * @set_transf: set transform(rotations, flip). - * @set_size: set size of region. - * @set_addr: set address for dma. - */ -struct exynos_drm_ipp_ops { - int (*set_fmt)(struct device *dev, u32 fmt); - int (*set_transf)(struct device *dev, - enum drm_exynos_degree degree, - enum drm_exynos_flip flip, bool *swap); - int (*set_size)(struct device *dev, int swap, - struct drm_exynos_pos *pos, struct drm_exynos_sz *sz); - int (*set_addr)(struct device *dev, - struct drm_exynos_ipp_buf_info *buf_info, u32 buf_id, - enum drm_exynos_ipp_buf_type buf_type); -}; - -/* - * A structure of ipp driver. - * - * @drv_list: list head for registed sub driver information. - * @parent_dev: parent device information. - * @dev: platform device. - * @drm_dev: drm device. - * @dedicated: dedicated ipp device. - * @ops: source, destination operations. - * @event_workq: event work queue. - * @c_node: current command information. - * @cmd_list: list head for command information. - * @cmd_lock: lock for synchronization of access to cmd_list. - * @prop_list: property informations of current ipp driver. - * @check_property: check property about format, size, buffer. - * @reset: reset ipp block. - * @start: ipp each device start. - * @stop: ipp each device stop. - * @sched_event: work schedule handler. - */ -struct exynos_drm_ippdrv { - struct list_head drv_list; - struct device *parent_dev; - struct device *dev; - struct drm_device *drm_dev; - bool dedicated; - struct exynos_drm_ipp_ops *ops[EXYNOS_DRM_OPS_MAX]; - struct workqueue_struct *event_workq; - struct drm_exynos_ipp_cmd_node *c_node; - struct list_head cmd_list; - struct mutex cmd_lock; - struct drm_exynos_ipp_prop_list prop_list; - - int (*check_property)(struct device *dev, - struct drm_exynos_ipp_property *property); - int (*reset)(struct device *dev); - int (*start)(struct device *dev, enum drm_exynos_ipp_cmd cmd); - void (*stop)(struct device *dev, enum drm_exynos_ipp_cmd cmd); - void (*sched_event)(struct work_struct *work); -}; - -#ifdef CONFIG_DRM_EXYNOS_IPP -extern int exynos_drm_ippdrv_register(struct exynos_drm_ippdrv *ippdrv); -extern int exynos_drm_ippdrv_unregister(struct exynos_drm_ippdrv *ippdrv); -extern int exynos_drm_ipp_get_property(struct drm_device *drm_dev, void *data, - struct drm_file *file); -extern int exynos_drm_ipp_set_property(struct drm_device *drm_dev, void *data, - struct drm_file *file); -extern int exynos_drm_ipp_queue_buf(struct drm_device *drm_dev, void *data, - struct drm_file *file); -extern int exynos_drm_ipp_cmd_ctrl(struct drm_device *drm_dev, void *data, - struct drm_file *file); -extern int exynos_drm_ippnb_register(struct notifier_block *nb); -extern int exynos_drm_ippnb_unregister(struct notifier_block *nb); -extern int exynos_drm_ippnb_send_event(unsigned long val, void *v); -extern void ipp_sched_cmd(struct work_struct *work); -extern void ipp_sched_event(struct work_struct *work); - -#else -static inline int exynos_drm_ippdrv_register(struct exynos_drm_ippdrv *ippdrv) -{ - return -ENODEV; -} - -static inline int exynos_drm_ippdrv_unregister(struct exynos_drm_ippdrv *ippdrv) -{ - return -ENODEV; -} - -static inline int exynos_drm_ipp_get_property(struct drm_device *drm_dev, - void *data, - struct drm_file *file_priv) -{ - return -ENOTTY; -} - -static inline int exynos_drm_ipp_set_property(struct drm_device *drm_dev, - void *data, - struct drm_file *file_priv) -{ - return -ENOTTY; -} - -static inline int exynos_drm_ipp_queue_buf(struct drm_device *drm_dev, - void *data, - struct drm_file *file) -{ - return -ENOTTY; -} - -static inline int exynos_drm_ipp_cmd_ctrl(struct drm_device *drm_dev, - void *data, - struct drm_file *file) -{ - return -ENOTTY; -} - -static inline int exynos_drm_ippnb_register(struct notifier_block *nb) -{ - return -ENODEV; -} - -static inline int exynos_drm_ippnb_unregister(struct notifier_block *nb) -{ - return -ENODEV; -} - -static inline int exynos_drm_ippnb_send_event(unsigned long val, void *v) -{ - return -ENOTTY; -} -#endif - -#endif /* _EXYNOS_DRM_IPP_H_ */ - diff --git a/include/uapi/drm/exynos_drm.h b/include/uapi/drm/exynos_drm.h index cb3e9f9d029f..544db2cecb36 100644 --- a/include/uapi/drm/exynos_drm.h +++ b/include/uapi/drm/exynos_drm.h @@ -134,172 +134,6 @@ struct drm_exynos_g2d_exec { __u64 async; };

-enum drm_exynos_ops_id { - EXYNOS_DRM_OPS_SRC, - EXYNOS_DRM_OPS_DST, - EXYNOS_DRM_OPS_MAX, -}; - -struct drm_exynos_sz { - __u32 hsize; - __u32 vsize; -}; - -struct drm_exynos_pos { - __u32 x; - __u32 y; - __u32 w; - __u32 h; -}; - -enum drm_exynos_flip { - EXYNOS_DRM_FLIP_NONE = (0 << 0), - EXYNOS_DRM_FLIP_VERTICAL = (1 << 0), - EXYNOS_DRM_FLIP_HORIZONTAL = (1 << 1), - EXYNOS_DRM_FLIP_BOTH = EXYNOS_DRM_FLIP_VERTICAL | - EXYNOS_DRM_FLIP_HORIZONTAL, -}; - -enum drm_exynos_degree { - EXYNOS_DRM_DEGREE_0, - EXYNOS_DRM_DEGREE_90, - EXYNOS_DRM_DEGREE_180, - EXYNOS_DRM_DEGREE_270, -}; - -enum drm_exynos_planer { - EXYNOS_DRM_PLANAR_Y, - EXYNOS_DRM_PLANAR_CB, - EXYNOS_DRM_PLANAR_CR, - EXYNOS_DRM_PLANAR_MAX, -}; - -/** - * A structure for ipp supported property list. - * - * @version: version of this structure. - * @ipp_id: id of ipp driver. - * @count: count of ipp driver. - * @writeback: flag of writeback supporting. - * @flip: flag of flip supporting. - * @degree: flag of degree information. - * @csc: flag of csc supporting. - * @crop: flag of crop supporting. - * @scale: flag of scale supporting. - * @refresh_min: min hz of refresh. - * @refresh_max: max hz of refresh. - * @crop_min: crop min resolution. - * @crop_max: crop max resolution. - * @scale_min: scale min resolution. - * @scale_max: scale max resolution. - */ -struct drm_exynos_ipp_prop_list { - __u32 version; - __u32 ipp_id; - __u32 count; - __u32 writeback; - __u32 flip; - __u32 degree; - __u32 csc; - __u32 crop; - __u32 scale; - __u32 refresh_min; - __u32 refresh_max; - __u32 reserved; - struct drm_exynos_sz crop_min; - struct drm_exynos_sz crop_max; - struct drm_exynos_sz scale_min; - struct drm_exynos_sz scale_max; -}; - -/** - * A structure for ipp config. - * - * @ops_id: property of operation directions. - * @flip: property of mirror, flip. - * @degree: property of rotation degree. - * @fmt: property of image format. - * @sz: property of image size. - * @pos: property of image position(src-cropped,dst-scaler). - */ -struct drm_exynos_ipp_config { - __u32 ops_id; - __u32 flip; - __u32 degree; - __u32 fmt; - struct drm_exynos_sz sz; - struct drm_exynos_pos pos; -}; - -enum drm_exynos_ipp_cmd { - IPP_CMD_NONE, - IPP_CMD_M2M, - IPP_CMD_WB, - IPP_CMD_OUTPUT, - IPP_CMD_MAX, -}; - -/** - * A structure for ipp property. - * - * @config: source, destination config. - * @cmd: definition of command. - * @ipp_id: id of ipp driver. - * @prop_id: id of property. - * @refresh_rate: refresh rate. - */ -struct drm_exynos_ipp_property { - struct drm_exynos_ipp_config config[EXYNOS_DRM_OPS_MAX]; - __u32 cmd; - __u32 ipp_id; - __u32 prop_id; - __u32 refresh_rate; -}; - -enum drm_exynos_ipp_buf_type { - IPP_BUF_ENQUEUE, - IPP_BUF_DEQUEUE, -}; - -/** - * A structure for ipp buffer operations. - * - * @ops_id: operation directions. - * @buf_type: definition of buffer. - * @prop_id: id of property. - * @buf_id: id of buffer. - * @handle: Y, Cb, Cr each planar handle. - * @user_data: user data. - */ -struct drm_exynos_ipp_queue_buf { - __u32 ops_id; - __u32 buf_type; - __u32 prop_id; - __u32 buf_id; - __u32 handle[EXYNOS_DRM_PLANAR_MAX]; - __u32 reserved; - __u64 user_data; -}; - -enum drm_exynos_ipp_ctrl { - IPP_CTRL_PLAY, - IPP_CTRL_STOP, - IPP_CTRL_PAUSE, - IPP_CTRL_RESUME, - IPP_CTRL_MAX, -}; - -/** - * A structure for ipp start/stop operations. - * - * @prop_id: id of property. - * @ctrl: definition of control. - */ -struct drm_exynos_ipp_cmd_ctrl { - __u32 prop_id; - __u32 ctrl; -}; - #define DRM_EXYNOS_GEM_CREATE 0x00 #define DRM_EXYNOS_GEM_MAP 0x01 /* Reserved 0x03 ~ 0x05 for exynos specific gem ioctl */ @@ -311,11 +145,7 @@ struct drm_exynos_ipp_cmd_ctrl { #define DRM_EXYNOS_G2D_SET_CMDLIST 0x21 #define DRM_EXYNOS_G2D_EXEC 0x22

-/* IPP - Image Post Processing */ -#define DRM_EXYNOS_IPP_GET_PROPERTY 0x30 -#define DRM_EXYNOS_IPP_SET_PROPERTY 0x31 -#define DRM_EXYNOS_IPP_QUEUE_BUF 0x32 -#define DRM_EXYNOS_IPP_CMD_CTRL 0x33 +/* Reserved 0x30 ~ 0x33 for obsolete Exynos IPP ioctls */

#define DRM_IOCTL_EXYNOS_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + \ DRM_EXYNOS_GEM_CREATE, struct drm_exynos_gem_create) @@ -334,18 +164,8 @@ struct drm_exynos_ipp_cmd_ctrl { #define DRM_IOCTL_EXYNOS_G2D_EXEC DRM_IOWR(DRM_COMMAND_BASE + \ DRM_EXYNOS_G2D_EXEC, struct drm_exynos_g2d_exec)

-#define DRM_IOCTL_EXYNOS_IPP_GET_PROPERTY DRM_IOWR(DRM_COMMAND_BASE + \ - DRM_EXYNOS_IPP_GET_PROPERTY, struct drm_exynos_ipp_prop_list) -#define DRM_IOCTL_EXYNOS_IPP_SET_PROPERTY DRM_IOWR(DRM_COMMAND_BASE + \ - DRM_EXYNOS_IPP_SET_PROPERTY, struct drm_exynos_ipp_property) -#define DRM_IOCTL_EXYNOS_IPP_QUEUE_BUF DRM_IOWR(DRM_COMMAND_BASE + \ - DRM_EXYNOS_IPP_QUEUE_BUF, struct drm_exynos_ipp_queue_buf) -#define DRM_IOCTL_EXYNOS_IPP_CMD_CTRL DRM_IOWR(DRM_COMMAND_BASE + \ - DRM_EXYNOS_IPP_CMD_CTRL, struct drm_exynos_ipp_cmd_ctrl) - /* EXYNOS specific events */ #define DRM_EXYNOS_G2D_EVENT 0x80000000 -#define DRM_EXYNOS_IPP_EVENT 0x80000001

struct drm_exynos_g2d_event { struct drm_event base; @@ -356,16 +176,6 @@ struct drm_exynos_g2d_event { __u32 reserved; };

-struct drm_exynos_ipp_event { - struct drm_event base; - __u64 user_data; - __u32 tv_sec; - __u32 tv_usec; - __u32 prop_id; - __u32 reserved; - __u32 buf_id[EXYNOS_DRM_OPS_MAX]; -}; - #if defined(__cplusplus) } #endif

This patch adds Exynos IPP v2 subsystem and userspace API.

New userspace API is focused ONLY on memory-to-memory image processing. The two remainging IPP operation modes (framebuffer writeback and local-path output with image processing) can be implemented using standard DRM features: writeback connectors and additional DRM planes with scaling features.

V2 IPP userspace API is not compatible with old IPP ioctls. This is a significant change, but the old IPP subsystem in mainline Linux kernel was partially disfunctional anyway and not used in any open-source project.

V2 IPP userspace API is based on stateless approach, which much better fits to memory-to-memory image processing model. It also provides support for all image formats, which are both already defined in DRM API and supported by the existing IPP hardware modules.

The API consists of the following ioctls: - DRM_IOCTL_EXYNOS_IPP_GET_RESOURCES: to enumerate all available image processing modules, - DRM_IOCTL_EXYNOS_IPP_GET_CAPS: to query capabilities and supported image formats of given IPP module, - DRM_IOCTL_EXYNOS_IPP_GET_LIMITS: to query hardware limitiations for selected image format of given IPP module, - DRM_IOCTL_EXYNOS_IPP_COMMIT: to perform operation described by the provided structures (source and destination buffers, operation rectangle, transformation, etc).

The proposed userspace API is extensible. In the future more advanced image processing operations can be defined to support for example blending.

Userspace API is fully functional also on DRM render nodes, so it is not limited to the root/privileged client.

Internal driver API also has been completely rewritten. New IPP core performs all possible input validation, checks and object life-time control. The drivers can focus only on writing configuration to hardware registers. Stateless nature of DRM_IOCTL_EXYNOS_IPP_COMMIT ioctl simplifies the driver API. Minimal driver needs to provide a single callback for starting processing and an array with supported image formats.

Signed-off-by: Marek Szyprowski m.szyprowski@samsung.com --- drivers/gpu/drm/exynos/Kconfig | 3 + drivers/gpu/drm/exynos/Makefile | 1 + drivers/gpu/drm/exynos/exynos_drm_drv.c | 9 + drivers/gpu/drm/exynos/exynos_drm_ipp.c | 893 ++++++++++++++++++++++++++++++++ drivers/gpu/drm/exynos/exynos_drm_ipp.h | 188 +++++++ include/uapi/drm/exynos_drm.h | 227 ++++++++ 6 files changed, 1321 insertions(+) create mode 100644 drivers/gpu/drm/exynos/exynos_drm_ipp.c create mode 100644 drivers/gpu/drm/exynos/exynos_drm_ipp.h

diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig index 88cff0e039b6..2e097a81df12 100644 --- a/drivers/gpu/drm/exynos/Kconfig +++ b/drivers/gpu/drm/exynos/Kconfig @@ -94,6 +94,9 @@ config DRM_EXYNOS_G2D help Choose this option if you want to use Exynos G2D for DRM.

+config DRM_EXYNOS_IPP + bool + config DRM_EXYNOS_FIMC bool "FIMC" depends on BROKEN && MFD_SYSCON diff --git a/drivers/gpu/drm/exynos/Makefile b/drivers/gpu/drm/exynos/Makefile index 09bb002c9555..f663490e949d 100644 --- a/drivers/gpu/drm/exynos/Makefile +++ b/drivers/gpu/drm/exynos/Makefile @@ -17,6 +17,7 @@ exynosdrm-$(CONFIG_DRM_EXYNOS_MIXER) += exynos_mixer.o exynosdrm-$(CONFIG_DRM_EXYNOS_HDMI) += exynos_hdmi.o exynosdrm-$(CONFIG_DRM_EXYNOS_VIDI) += exynos_drm_vidi.o exynosdrm-$(CONFIG_DRM_EXYNOS_G2D) += exynos_drm_g2d.o +exynosdrm-$(CONFIG_DRM_EXYNOS_IPP) += exynos_drm_ipp.o exynosdrm-$(CONFIG_DRM_EXYNOS_FIMC) += exynos_drm_fimc.o exynosdrm-$(CONFIG_DRM_EXYNOS_ROTATOR) += exynos_drm_rotator.o exynosdrm-$(CONFIG_DRM_EXYNOS_GSC) += exynos_drm_gsc.o diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c index 7f19054ebce3..645046c5943a 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -26,6 +26,7 @@ #include "exynos_drm_fb.h" #include "exynos_drm_gem.h" #include "exynos_drm_plane.h" +#include "exynos_drm_ipp.h" #include "exynos_drm_vidi.h" #include "exynos_drm_g2d.h" #include "exynos_drm_iommu.h" @@ -114,6 +115,14 @@ static void exynos_drm_lastclose(struct drm_device *dev) DRM_AUTH | DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC, exynos_g2d_exec_ioctl, DRM_AUTH | DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_RESOURCES, exynos_drm_ipp_get_res_ioctl, + DRM_AUTH | DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_CAPS, exynos_drm_ipp_get_caps_ioctl, + DRM_AUTH | DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_LIMITS, exynos_drm_ipp_get_limits_ioctl, + DRM_AUTH | DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(EXYNOS_IPP_COMMIT, exynos_drm_ipp_commit_ioctl, + DRM_AUTH | DRM_RENDER_ALLOW), };

static const struct file_operations exynos_drm_driver_fops = { diff --git a/drivers/gpu/drm/exynos/exynos_drm_ipp.c b/drivers/gpu/drm/exynos/exynos_drm_ipp.c new file mode 100644 index 000000000000..11be6a1bf839 --- /dev/null +++ b/drivers/gpu/drm/exynos/exynos_drm_ipp.c @@ -0,0 +1,892 @@ +/* + * Copyright (C) 2017 Samsung Electronics Co.Ltd + * Authors: + * Marek Szyprowski m.szyprowski@samsung.com + * + * Exynos DRM Image Post Processing (IPP) related functions + * + * 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. + */ + + +#include <drm/drmP.h> +#include <drm/drm_mode.h> +#include <uapi/drm/exynos_drm.h> + +#include "exynos_drm_drv.h" +#include "exynos_drm_gem.h" +#include "exynos_drm_ipp.h" + +static int num_ipp; +static LIST_HEAD(ipp_list); + +struct drm_pending_exynos_ipp_event { + struct drm_pending_event base; + struct drm_exynos_ipp_event event; +}; + +/** + * exynos_drm_ipp_register - Register a new picture processor hardware module + * @dev: DRM device + * @ipp: ipp module to init + * @funcs: callbacks for the new ipp object + * @caps: bitmask of ipp capabilities (%DRM_EXYNOS_IPP_CAP_*) + * @formats: array of supported formats (%DRM_FORMAT_*) + * @name: name (for debugging purposes) + * + * Initializes a ipp module. + * + * Returns: + * Zero on success, error code on failure. + */ +int exynos_drm_ipp_register(struct drm_device *dev, struct exynos_drm_ipp *ipp, + const struct exynos_drm_ipp_funcs *funcs, unsigned int caps, + const struct exynos_drm_ipp_formats *formats, const char *name) +{ + WARN_ON(!ipp); + WARN_ON(!funcs); + WARN_ON(!formats); + + spin_lock_init(&ipp->lock); + INIT_LIST_HEAD(&ipp->todo_list); + init_waitqueue_head(&ipp->done_wq); + ipp->dev = dev; + ipp->funcs = funcs; + ipp->capabilities = caps; + ipp->name = name; + ipp->formats = formats; + while (formats++->fourcc) + ipp->num_formats++; + + list_add_tail(&ipp->head, &ipp_list); + ipp->id = num_ipp++; + + DRM_DEBUG_DRIVER("Registered ipp %d\n", ipp->id); + + return 0; +} + +/** + * exynos_drm_ipp_unregister - Unregister the picture processor module + * @dev: DRM device + * @ipp: ipp module + */ +void exynos_drm_ipp_unregister(struct drm_device *dev, + struct exynos_drm_ipp *ipp) +{ + BUG_ON(ipp->task); + BUG_ON(!list_empty(&ipp->todo_list)); + list_del(&ipp->head); +} + +/** + * exynos_drm_ipp_ioctl_get_res_ioctl - enumerate all ipp modules + * @dev: DRM device + * @data: ioctl data + * @file_priv: DRM file info + * + * Construct a list of ipp ids. + * + * Called by the user via ioctl. + * + * Returns: + * Zero on success, negative errno on failure. + */ +int exynos_drm_ipp_get_res_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_exynos_ioctl_ipp_get_res *resp = data; + struct exynos_drm_ipp *ipp; + uint32_t __user *ipp_ptr = (uint32_t __user *) + (unsigned long)resp->ipp_id_ptr; + unsigned int count = num_ipp, copied = 0; + + /* + * This ioctl is called twice, once to determine how much space is + * needed, and the 2nd time to fill it. + */ + if (count && resp->count_ipps >= count) { + list_for_each_entry(ipp, &ipp_list, head) { + if (put_user(ipp->id, ipp_ptr + copied)) + return -EFAULT; + copied++; + } + } + resp->count_ipps = count; + + return 0; +} + +static inline struct exynos_drm_ipp *__ipp_get(uint32_t id) +{ + struct exynos_drm_ipp *ipp; + + list_for_each_entry(ipp, &ipp_list, head) + if (ipp->id == id) + return ipp; + return NULL; +} + +/** + * exynos_drm_ipp_ioctl_get_caps - get ipp module capabilities and formats + * @dev: DRM device + * @data: ioctl data + * @file_priv: DRM file info + * + * Construct a structure describing ipp module capabilities. + * + * Called by the user via ioctl. + * + * Returns: + * Zero on success, negative errno on failure. + */ +int exynos_drm_ipp_get_caps_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_exynos_ioctl_ipp_get_caps *resp = data; + void __user *ptr = (void __user *)(unsigned long)resp->formats_ptr; + struct exynos_drm_ipp *ipp; + int i; + + ipp = __ipp_get(resp->ipp_id); + if (!ipp) + return -ENOENT; + + resp->ipp_id = ipp->id; + resp->capabilities = ipp->capabilities; + + /* + * This ioctl is called twice, once to determine how much space is + * needed, and the 2nd time to fill it. + */ + if (resp->formats_count >= ipp->num_formats) { + for (i = 0; i < ipp->num_formats; i++) { + struct exynos_drm_ipp_format tmp = { + .fourcc = ipp->formats[i].fourcc, + .type = ipp->formats[i].type, + .modifier = ipp->formats[i].modifier, + }; + + if (copy_to_user(ptr, &tmp, sizeof(tmp))) + return -EFAULT; + ptr += sizeof(tmp); + } + } + resp->formats_count = ipp->num_formats; + + return 0; +} + +static inline const struct exynos_drm_ipp_formats *__ipp_format_get( + uint32_t fourcc, uint64_t mod, unsigned long type, + const struct exynos_drm_ipp_formats *f) +{ + for (; f->fourcc; f++) + if ((f->type & type) && f->fourcc == fourcc && + f->modifier == mod) + return f; + return NULL; +} + +/** + * exynos_drm_ipp_get_limits_ioctl - get ipp module limits + * @dev: DRM device + * @data: ioctl data + * @file_priv: DRM file info + * + * Construct a structure describing ipp module limitations for provided + * picture format. + * + * Called by the user via ioctl. + * + * Returns: + * Zero on success, negative errno on failure. + */ +int exynos_drm_ipp_get_limits_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_exynos_ioctl_ipp_get_limits *resp = data; + void __user *ptr = (void __user *)(unsigned long)resp->limits_ptr; + const struct exynos_drm_ipp_formats *format; + const struct drm_exynos_ipp_limit *limits, *l; + struct exynos_drm_ipp *ipp; + int count = 0; + + if (resp->type != DRM_EXYNOS_IPP_FORMAT_SOURCE && + resp->type != DRM_EXYNOS_IPP_FORMAT_DESTINATION) + return -EINVAL; + + ipp = __ipp_get(resp->ipp_id); + if (!ipp) + return -ENOENT; + + format = __ipp_format_get(resp->fourcc, resp->modifier, resp->type, + ipp->formats); + if (!format) + return -EINVAL; + + limits = format->limits; + for (l = limits; l->type; l++) + count++; + + /* + * This ioctl is called twice, once to determine how much space is + * needed, and the 2nd time to fill it. + */ + if (count && resp->limits_size >= count * sizeof(*l)) { + for (l = limits; l->type; l++, ptr += sizeof(*l)) + if (copy_to_user((void __user *)ptr, l, sizeof(*l))) + return -EFAULT; + } + resp->limits_size = count * sizeof(*l); + + return 0; +} + +static inline struct exynos_drm_ipp_task * + exynos_drm_ipp_task_alloc(struct exynos_drm_ipp *ipp) +{ + struct exynos_drm_ipp_task *task; + + task = kzalloc(sizeof(*task), GFP_KERNEL); + if (!task) + return NULL; + + task->dev = ipp->dev; + task->ipp = ipp; + + /* some defaults */ + task->src.rect.w = task->dst.rect.w = UINT_MAX; + task->src.rect.h = task->dst.rect.h = UINT_MAX; + task->transform.rotation = DRM_MODE_ROTATE_0; + + DRM_DEBUG_DRIVER("Allocated task %pK\n", task); + + return task; +} + +struct exynos_drm_param_map { + unsigned int id; + unsigned int size; + unsigned int offset; +} exynos_drm_ipp_params_maps[] = { + { + DRM_EXYNOS_IPP_TASK_BUFFER | DRM_EXYNOS_IPP_TASK_TYPE_SOURCE, + sizeof(struct drm_exynos_ipp_task_buffer), + offsetof(struct exynos_drm_ipp_task, src.buf), + }, { + DRM_EXYNOS_IPP_TASK_BUFFER | DRM_EXYNOS_IPP_TASK_TYPE_DESTINATION, + sizeof(struct drm_exynos_ipp_task_buffer), + offsetof(struct exynos_drm_ipp_task, dst.buf), + }, { + DRM_EXYNOS_IPP_TASK_RECTANGLE | DRM_EXYNOS_IPP_TASK_TYPE_SOURCE, + sizeof(struct drm_exynos_ipp_task_rect), + offsetof(struct exynos_drm_ipp_task, src.rect), + }, { + DRM_EXYNOS_IPP_TASK_RECTANGLE | DRM_EXYNOS_IPP_TASK_TYPE_DESTINATION, + sizeof(struct drm_exynos_ipp_task_rect), + offsetof(struct exynos_drm_ipp_task, dst.rect), + }, { + DRM_EXYNOS_IPP_TASK_TRANSFORM, + sizeof(struct drm_exynos_ipp_task_transform), + offsetof(struct exynos_drm_ipp_task, transform), + }, { + DRM_EXYNOS_IPP_TASK_ALPHA, + sizeof(struct drm_exynos_ipp_task_alpha), + offsetof(struct exynos_drm_ipp_task, alpha), + }, +}; + +static int exynos_drm_ipp_task_set(struct exynos_drm_ipp_task *task, + struct drm_exynos_ioctl_ipp_commit *arg) +{ + unsigned int size = arg->params_size; + void *p, *params; + int ret = 0; + + if (size > PAGE_SIZE) + return -ERANGE; + + p = kmalloc(size, GFP_KERNEL); + if (!p) + return -ENOMEM; + + if (copy_from_user(p, (void __user *)(unsigned long)arg->params_ptr, + size)) { + ret = -EFAULT; + DRM_DEBUG_DRIVER("Failed to copy configuration from userspace\n"); + goto free; + } + + params = p; + while (size) { + struct exynos_drm_param_map *map = exynos_drm_ipp_params_maps; + u32 *id = params; + int i; + + for (i = 0; i < ARRAY_SIZE(exynos_drm_ipp_params_maps); i++) + if (map[i].id == *id) + break; + + if (i < ARRAY_SIZE(exynos_drm_ipp_params_maps) && + map[i].size <= size) { + memcpy((void *)task + map[i].offset, params, + map[i].size); + params += map[i].size; + size -= map[i].size; + } else { + ret = -EINVAL; + goto free; + } + } + + DRM_DEBUG_DRIVER("Got task %pK configuration from userspace\n", task); +free: + kfree(p); + return ret; +} + +static int exynos_drm_ipp_task_setup_buffer(struct exynos_drm_ipp_buffer *buf, + struct drm_file *filp) +{ + int ret = 0; + int i; + + /* basic checks */ + if (buf->buf.width == 0 || buf->buf.height == 0) + return -EINVAL; + buf->format = drm_format_info(buf->buf.fourcc); + for (i = 0; i < buf->format->num_planes; i++) { + unsigned int width = (i == 0) ? buf->buf.width : + DIV_ROUND_UP(buf->buf.width, buf->format->hsub); + + if (buf->buf.pitch[i] == 0) + buf->buf.pitch[i] = width * buf->format->cpp[i]; + if (buf->buf.pitch[i] < width * buf->format->cpp[i]) + return -EINVAL; + if (!buf->buf.gem_id[i]) + return -ENOENT; + } + + /* get GEM buffers and check their size */ + for (i = 0; i < buf->format->num_planes; i++) { + unsigned int height = (i == 0) ? buf->buf.height : + DIV_ROUND_UP(buf->buf.height, buf->format->vsub); + unsigned long size = height * buf->buf.pitch[i] + + buf->buf.offset[i]; + struct drm_gem_object *obj = drm_gem_object_lookup(filp, + buf->buf.gem_id[i]); + if (!obj) { + ret = -ENOENT; + goto gem_free; + } + buf->exynos_gem[i] = to_exynos_gem(obj); + + if (size > buf->exynos_gem[i]->size) { + i++; + ret = -EINVAL; + goto gem_free; + } + buf->dma_addr[i] = buf->exynos_gem[i]->dma_addr + + buf->buf.offset[i]; + } + + return 0; +gem_free: + while (i--) { + drm_gem_object_put_unlocked(&buf->exynos_gem[i]->base); + buf->exynos_gem[i] = NULL; + } + return ret; +} + +static void exynos_drm_ipp_task_release_buffer(struct exynos_drm_ipp_buffer *buf) +{ + int i; + + if (!buf->exynos_gem[0]) + return; + for (i = 0; i < buf->format->num_planes; i++) + drm_gem_object_put_unlocked(&buf->exynos_gem[i]->base); +} + +static void exynos_drm_ipp_task_free(struct exynos_drm_ipp *ipp, + struct exynos_drm_ipp_task *task) +{ + DRM_DEBUG_DRIVER("Freeing task %pK\n", task); + + exynos_drm_ipp_task_release_buffer(&task->src); + exynos_drm_ipp_task_release_buffer(&task->dst); + if (task->event) + drm_event_cancel_free(ipp->dev, &task->event->base); + kfree(task); +} + +struct drm_ipp_limit { + struct drm_exynos_ipp_limit_val h; + struct drm_exynos_ipp_limit_val v; +}; + +enum drm_ipp_size_id { + IPP_LIMIT_BUFFER, IPP_LIMIT_AREA, IPP_LIMIT_ROTATED, IPP_LIMIT_MAX +}; + +static const enum drm_ipp_size_id limit_id_fallback[IPP_LIMIT_MAX][4] = { + [IPP_LIMIT_BUFFER] = { DRM_EXYNOS_IPP_LIMIT_SIZE_BUFFER }, + [IPP_LIMIT_AREA] = { DRM_EXYNOS_IPP_LIMIT_SIZE_AREA, + DRM_EXYNOS_IPP_LIMIT_SIZE_BUFFER }, + [IPP_LIMIT_ROTATED] = { DRM_EXYNOS_IPP_LIMIT_SIZE_ROTATED, + DRM_EXYNOS_IPP_LIMIT_SIZE_AREA, + DRM_EXYNOS_IPP_LIMIT_SIZE_BUFFER }, +}; + +static inline void __limit_set_val(unsigned int *ptr, unsigned int val) +{ + if (!*ptr) + *ptr = val; +} + +static void __get_size_limit(const struct drm_exynos_ipp_limit *limits, + enum drm_ipp_size_id id, struct drm_ipp_limit *res) +{ + const struct drm_exynos_ipp_limit *l = limits; + int i = 0; + + memset(res, 0, sizeof(*res)); + for (i = 0; limit_id_fallback[id][i]; i++) + for (l = limits; l->type; l++) { + if (((l->type & DRM_EXYNOS_IPP_LIMIT_TYPE_MASK) != + DRM_EXYNOS_IPP_LIMIT_TYPE_SIZE) || + ((l->type & DRM_EXYNOS_IPP_LIMIT_SIZE_MASK) != + limit_id_fallback[id][i])) + continue; + __limit_set_val(&res->h.min, l->h.min); + __limit_set_val(&res->h.max, l->h.max); + __limit_set_val(&res->h.align, l->h.align); + __limit_set_val(&res->v.min, l->v.min); + __limit_set_val(&res->v.max, l->v.max); + __limit_set_val(&res->v.align, l->v.align); + } +} + +static inline bool __align_check(unsigned int val, unsigned int align) +{ + if (align && (val & (align - 1))) + return false; + return true; +} + +static inline bool __size_limit_check(unsigned int val, + struct drm_exynos_ipp_limit_val *l) +{ + if ((l->min && val < l->min) || (l->max && val > l->max) || + !__align_check(val, l->align)) + return false; + return true; +} + +static int exynos_drm_ipp_check_size_limits(struct exynos_drm_ipp_buffer *buf, + const struct drm_exynos_ipp_limit *limits, bool rotate, bool swap) +{ + enum drm_ipp_size_id id = rotate ? IPP_LIMIT_ROTATED : IPP_LIMIT_AREA; + struct drm_ipp_limit l; + struct drm_exynos_ipp_limit_val *lh = &l.h, *lv = &l.v; + + if (!limits) + return 0; + + __get_size_limit(limits, IPP_LIMIT_BUFFER, &l); + if (!__size_limit_check(buf->buf.width, &l.h) || + !__size_limit_check(buf->buf.height, &l.v)) + return -EINVAL; + + if (swap) { + lv = &l.h; + lh = &l.v; + } + __get_size_limit(limits, id, &l); + if (!__size_limit_check(buf->rect.w, lh) || + !__align_check(buf->rect.x, lh->align) || + !__size_limit_check(buf->rect.h, lv) || + !__align_check(buf->rect.y, lv->align)) + return -EINVAL; + + return 0; +} + +static int exynos_drm_ipp_check_scale_limits(struct drm_exynos_ipp_task_rect *src, + struct drm_exynos_ipp_task_rect *dst, + const struct drm_exynos_ipp_limit *limits, bool swap) +{ + const struct drm_exynos_ipp_limit_val *lh, *lv; + + if (!limits) + return 0; + + for (; limits->type; limits++) + if ((limits->type & DRM_EXYNOS_IPP_LIMIT_TYPE_MASK) == + DRM_EXYNOS_IPP_LIMIT_TYPE_SCALE) + break; + if (!limits->type) + return 0; + + lh = (!swap) ? &limits->h : &limits->v; + lv = (!swap) ? &limits->v : &limits->h; + + if ((lh->max && dst->w > src->w * lh->max) || + (lh->min && (dst->w << 16) < src->w * lh->min) || + (lv->max && dst->h > src->h * lv->max) || + (lv->min && (dst->h << 16) < src->h * lv->min)) + return -EINVAL; + + return 0; +} + +static int exynos_drm_ipp_task_check(struct exynos_drm_ipp_task *task, + struct drm_file *filp) +{ + struct exynos_drm_ipp *ipp = task->ipp; + const struct exynos_drm_ipp_formats *src_format, *dst_format; + struct exynos_drm_ipp_buffer *src = &task->src, *dst = &task->dst; + unsigned int rotation = task->transform.rotation; + int ret = 0; + bool scale = false, swap = false; + + DRM_DEBUG_DRIVER("Checking %pK\n", task); + + if (src->rect.w == UINT_MAX) + src->rect.w = src->buf.width; + if (src->rect.h == UINT_MAX) + src->rect.h = src->buf.height; + if (dst->rect.w == UINT_MAX) + dst->rect.w = dst->buf.width; + if (dst->rect.h == UINT_MAX) + dst->rect.h = dst->buf.height; + + if (src->rect.x + src->rect.w > (src->buf.width) || + src->rect.y + src->rect.h > (src->buf.height) || + dst->rect.x + dst->rect.w > (dst->buf.width) || + dst->rect.y + dst->rect.h > (dst->buf.height)) + return -EINVAL; + + DRM_DEBUG_DRIVER("Task %pK: basic checks done\n", task); + + if (!(ipp->capabilities & DRM_EXYNOS_IPP_CAP_CROP) && + (src->rect.x || src->rect.y || dst->rect.x || dst->rect.y)) + return -EINVAL; + + if (!(ipp->capabilities & DRM_EXYNOS_IPP_CAP_ROTATE) && + rotation != DRM_MODE_ROTATE_0) + return -EINVAL; + + if (drm_rotation_90_or_270(rotation)) + swap = true; + + if ((!swap && (src->rect.w != dst->rect.w || src->rect.h != dst->rect.h)) || + (swap && (src->rect.w != dst->rect.h || src->rect.h != dst->rect.w))) + scale = true; + + if (!(ipp->capabilities & DRM_EXYNOS_IPP_CAP_SCALE) && scale) + return -EINVAL; + + if (!(ipp->capabilities & DRM_EXYNOS_IPP_CAP_CONVERT) && + src->buf.fourcc != dst->buf.fourcc) + return -EINVAL; + + DRM_DEBUG_DRIVER("Task %pK: capability checks done\n", task); + + src_format = __ipp_format_get(src->buf.fourcc, src->buf.modifier, + DRM_EXYNOS_IPP_FORMAT_SOURCE, ipp->formats); + if (!src_format) + return -EINVAL; + ret = exynos_drm_ipp_check_size_limits(src, src_format->limits, + rotation != DRM_MODE_ROTATE_0, false); + if (ret) + return ret; + ret = exynos_drm_ipp_check_scale_limits(&src->rect, &dst->rect, + src_format->limits, swap); + if (ret) + return ret; + + DRM_DEBUG_DRIVER("Task %pK: source image checks done\n", task); + + dst_format = __ipp_format_get(dst->buf.fourcc, dst->buf.modifier, + DRM_EXYNOS_IPP_FORMAT_DESTINATION, ipp->formats); + if (!dst_format) + return -EINVAL; + ret = exynos_drm_ipp_check_size_limits(dst, dst_format->limits, + rotation != DRM_MODE_ROTATE_0, swap); + if (ret) + return ret; + ret = exynos_drm_ipp_check_scale_limits(&src->rect, &dst->rect, + dst_format->limits, swap); + if (ret) + return ret; + + DRM_DEBUG_DRIVER("Task %pK: destination image checks done\n", task); + + ret = exynos_drm_ipp_task_setup_buffer(src, filp); + if (ret) + return ret; + + DRM_DEBUG_DRIVER("Task %pK: source buffer checks done\n", task); + + ret = exynos_drm_ipp_task_setup_buffer(dst, filp); + if (ret) + return ret; + + DRM_DEBUG_DRIVER("Task %pK: destination buffer checks done\n", task); + + if (ipp->funcs->check) + ret = ipp->funcs->check(ipp, task); + + DRM_DEBUG_DRIVER("Task %pK: all checks done.\n", task); + + return ret; +} + +static int exynos_drm_ipp_event_create(struct exynos_drm_ipp_task *task, + struct drm_file *file_priv, uint64_t user_data) +{ + struct drm_pending_exynos_ipp_event *e = NULL; + int ret; + + e = kzalloc(sizeof(*e), GFP_KERNEL); + if (!e) + return -ENOMEM; + + e->event.base.type = DRM_EXYNOS_IPP_EVENT; + e->event.base.length = sizeof(e->event); + e->event.user_data = user_data; + + ret = drm_event_reserve_init(task->dev, file_priv, &e->base, + &e->event.base); + if (ret) + goto free; + + task->event = e; + return 0; +free: + kfree(e); + return ret; +} + +static void exynos_drm_ipp_event_send(struct exynos_drm_ipp_task *task) +{ + struct timeval now = ktime_to_timeval(ktime_get()); + + task->event->event.tv_sec = now.tv_sec; + task->event->event.tv_usec = now.tv_usec; + task->event->event.sequence = atomic_inc_return(&task->ipp->sequence); + + drm_send_event(task->dev, &task->event->base); +} + +static int exynos_drm_ipp_task_cleanup(struct exynos_drm_ipp_task *task) +{ + int ret = task->ret; + + if (ret == 0 && task->event) { + exynos_drm_ipp_event_send(task); + /* ensure event won't be canceled on task free */ + task->event = NULL; + } + + exynos_drm_ipp_task_free(task->ipp, task); + return ret; +} + +static void exynos_drm_ipp_cleanup_work(struct work_struct *work) +{ + struct exynos_drm_ipp_task *task = container_of(work, + struct exynos_drm_ipp_task, cleanup_work); + + exynos_drm_ipp_task_cleanup(task); +} + +static void exynos_drm_ipp_next_task(struct exynos_drm_ipp *ipp); + +/** + * exynos_drm_ipp_task_done - finish given task and set return code + * @task: ipp task to finish + * @ret: error code or 0 if operation has been performed successfully + */ +void exynos_drm_ipp_task_done(struct exynos_drm_ipp_task *task, int ret) +{ + struct exynos_drm_ipp *ipp = task->ipp; + unsigned long flags; + + DRM_DEBUG_DRIVER("ipp: %d, task %pK done\n", ipp->id, task); + + spin_lock_irqsave(&ipp->lock, flags); + if (ipp->task == task) + ipp->task = NULL; + task->flags |= DRM_EXYNOS_IPP_TASK_DONE; + task->ret = ret; + spin_unlock_irqrestore(&ipp->lock, flags); + + exynos_drm_ipp_next_task(ipp); + wake_up(&ipp->done_wq); + + if (task->flags & DRM_EXYNOS_IPP_TASK_ASYNC) { + INIT_WORK(&task->cleanup_work, exynos_drm_ipp_cleanup_work); + schedule_work(&task->cleanup_work); + } +} + +static void exynos_drm_ipp_next_task(struct exynos_drm_ipp *ipp) +{ + struct exynos_drm_ipp_task *task; + unsigned long flags; + int ret; + + DRM_DEBUG_DRIVER("ipp: %d, try to run new task\n", ipp->id); + + spin_lock_irqsave(&ipp->lock, flags); + + if (ipp->task || list_empty(&ipp->todo_list)) { + spin_unlock_irqrestore(&ipp->lock, flags); + return; + } + + task = list_first_entry(&ipp->todo_list, struct exynos_drm_ipp_task, + head); + list_del_init(&task->head); + ipp->task = task; + + spin_unlock_irqrestore(&ipp->lock, flags); + + DRM_DEBUG_DRIVER("ipp: %d, selected task %pK to run\n", ipp->id, task); + + ret = ipp->funcs->commit(ipp, task); + if (ret) + exynos_drm_ipp_task_done(task, ret); +} + +static void exynos_drm_ipp_schedule_task(struct exynos_drm_ipp *ipp, + struct exynos_drm_ipp_task *task) +{ + unsigned long flags; + + spin_lock_irqsave(&ipp->lock, flags); + list_add(&task->head, &ipp->todo_list); + spin_unlock_irqrestore(&ipp->lock, flags); + + exynos_drm_ipp_next_task(ipp); +} + +static void exynos_drm_ipp_task_abort(struct exynos_drm_ipp *ipp, + struct exynos_drm_ipp_task *task) +{ + unsigned long flags; + + spin_lock_irqsave(&ipp->lock, flags); + if (task->flags & DRM_EXYNOS_IPP_TASK_DONE) { + /* already completed task */ + exynos_drm_ipp_task_cleanup(task); + } else if (ipp->task != task) { + /* task has not been scheduled for execution yet */ + list_del_init(&task->head); + exynos_drm_ipp_task_cleanup(task); + } else { + /* + * currently processed task, call abort() and perform + * cleanup with async worker + */ + task->flags |= DRM_EXYNOS_IPP_TASK_ASYNC; + spin_unlock_irqrestore(&ipp->lock, flags); + if (ipp->funcs->abort) + ipp->funcs->abort(ipp, task); + return; + } + spin_unlock_irqrestore(&ipp->lock, flags); +} + +/** + * exynos_drm_ipp_commit_ioctl - perform image processing operation + * @dev: DRM device + * @data: ioctl data + * @file_priv: DRM file info + * + * Construct a ipp task from the set of properties provided from the user + * and try to schedule it to framebuffer processor hardware. + * + * Called by the user via ioctl. + * + * Returns: + * Zero on success, negative errno on failure. + */ +int exynos_drm_ipp_commit_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_exynos_ioctl_ipp_commit *arg = data; + struct exynos_drm_ipp *ipp; + struct exynos_drm_ipp_task *task; + int ret = 0; + + if ((arg->flags & ~DRM_EXYNOS_IPP_FLAGS) || arg->reserved) + return -EINVAL; + + /* can't test and expect an event at the same time */ + if ((arg->flags & DRM_EXYNOS_IPP_FLAG_TEST_ONLY) && + (arg->flags & DRM_EXYNOS_IPP_FLAG_EVENT)) + return -EINVAL; + + ipp = __ipp_get(arg->ipp_id); + if (!ipp) + return -ENOENT; + + task = exynos_drm_ipp_task_alloc(ipp); + if (!task) + return -ENOMEM; + + ret = exynos_drm_ipp_task_set(task, arg); + if (ret) + goto free; + + ret = exynos_drm_ipp_task_check(task, file_priv); + if (ret || arg->flags & DRM_EXYNOS_IPP_FLAG_TEST_ONLY) + goto free; + + if (arg->flags & DRM_EXYNOS_IPP_FLAG_EVENT) { + ret = exynos_drm_ipp_event_create(task, file_priv, + arg->user_data); + if (ret) + goto free; + } + + /* + * Queue task for processing on the hardware. task object will be + * then freed after exynos_drm_ipp_task_done() + */ + if (arg->flags & DRM_EXYNOS_IPP_FLAG_NONBLOCK) { + DRM_DEBUG_DRIVER("ipp: %d, nonblocking processing task %pK\n", + ipp->id, task); + + task->flags |= DRM_EXYNOS_IPP_TASK_ASYNC; + exynos_drm_ipp_schedule_task(task->ipp, task); + ret = 0; + } else { + DRM_DEBUG_DRIVER("ipp: %d, processing task %pK\n", ipp->id, task); + exynos_drm_ipp_schedule_task(ipp, task); + ret = wait_event_interruptible(ipp->done_wq, + task->flags & DRM_EXYNOS_IPP_TASK_DONE); + if (ret) + exynos_drm_ipp_task_abort(ipp, task); + else + ret = exynos_drm_ipp_task_cleanup(task); + } + return ret; +free: + exynos_drm_ipp_task_free(ipp, task); + + return ret; +} diff --git a/drivers/gpu/drm/exynos/exynos_drm_ipp.h b/drivers/gpu/drm/exynos/exynos_drm_ipp.h new file mode 100644 index 000000000000..532a60698a6a --- /dev/null +++ b/drivers/gpu/drm/exynos/exynos_drm_ipp.h @@ -0,0 +1,188 @@ +/* + * Copyright (c) 2017 Samsung Electronics Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#ifndef _EXYNOS_DRM_IPP_H_ +#define _EXYNOS_DRM_IPP_H_ + +#include <drm/drmP.h> + +struct exynos_drm_ipp; +struct exynos_drm_ipp_task; + +/** + * struct exynos_drm_ipp_funcs - exynos_drm_ipp control functions + */ +struct exynos_drm_ipp_funcs { + /** + * @check: + * + * This is the optional hook to validate an ipp task. This function + * must reject any task which the hardware or driver doesn't support. + * This includes but is of course not limited to: + * + * - Checking that the buffers, scaling and placement requirements + * and so on are within the limits of the hardware not specified by + * limits array. + * + * - The driver does not need to repeat basic input validation like + * done in the exynos_drm_ipp_task_check() function. The core does + * that before calling this hook. + * + * RETURNS: + * + * 0 on success or one of the below negative error codes: + * + * - -EINVAL, if any of the above constraints are violated. + */ + int (*check)(struct exynos_drm_ipp *ipp, + struct exynos_drm_ipp_task *task); + + /** + * @commit: + * + * This is the main entry point to start framebuffer processing + * in the hardware. The exynos_drm_ipp_task has been already validated. + * This function must not wait until the device finishes processing. + * When the driver finishes processing, it has to call + * exynos_exynos_drm_ipp_task_done() function. + * + * RETURNS: + * + * 0 on success or negative error codes in case of failure. + */ + int (*commit)(struct exynos_drm_ipp *ipp, + struct exynos_drm_ipp_task *task); + + /** + * @abort: + * + * Informs the driver that it has to abort the currently running + * task as soon as possible (i.e. as soon as it can stop the device + * safely), even if the task would not have been finished by then. + * After the driver performs the necessary steps, it has to call + * exynos_drm_ipp_task_done() (as if the task ended normally). + * This function does not have to (and will usually not) wait + * until the device enters a state when it can be stopped. + */ + void (*abort)(struct exynos_drm_ipp *ipp, + struct exynos_drm_ipp_task *task); +}; + +/** + * struct exynos_drm_ipp - central picture processor module structure + */ +struct exynos_drm_ipp { + struct drm_device *dev; + struct list_head head; + unsigned int id; + + const char *name; + const struct exynos_drm_ipp_funcs *funcs; + unsigned int capabilities; + const struct exynos_drm_ipp_formats *formats; + unsigned int num_formats; + atomic_t sequence; + + spinlock_t lock; + struct exynos_drm_ipp_task *task; + struct list_head todo_list; + wait_queue_head_t done_wq; +}; + +struct exynos_drm_ipp_buffer { + struct drm_exynos_ipp_task_buffer buf; + struct drm_exynos_ipp_task_rect rect; + + struct exynos_drm_gem *exynos_gem[MAX_FB_BUFFER]; + const struct drm_format_info *format; + dma_addr_t dma_addr[MAX_FB_BUFFER]; +}; + +/** + * struct exynos_drm_ipp_task - a structure describing transformation that + * has to be performed by the picture processor hardware module + */ +struct exynos_drm_ipp_task { + struct drm_device *dev; + struct exynos_drm_ipp *ipp; + struct list_head head; + + struct exynos_drm_ipp_buffer src; + struct exynos_drm_ipp_buffer dst; + + struct drm_exynos_ipp_task_transform transform; + struct drm_exynos_ipp_task_alpha alpha; + + struct work_struct cleanup_work; + unsigned int flags; + int ret; + + struct drm_pending_exynos_ipp_event *event; +}; + +#define DRM_EXYNOS_IPP_TASK_DONE (1 << 0) +#define DRM_EXYNOS_IPP_TASK_ASYNC (1 << 1) + +struct exynos_drm_ipp_formats { + u32 fourcc; + u32 type; + u64 modifier; + const struct drm_exynos_ipp_limit *limits; +}; + +/* helper macros to set exynos_drm_ipp_formats structure and limits*/ +#define IPP_SRCDST_MFORMAT(f, m, l) \ + .fourcc = DRM_FORMAT_##f, .modifier = m, .limits = l, \ + .type = (DRM_EXYNOS_IPP_FORMAT_SOURCE | DRM_EXYNOS_IPP_FORMAT_DESTINATION) + +#define IPP_SRCDST_FORMAT(f, l) IPP_SRCDST_MFORMAT(f, 0, l) + +#define IPP_SIZE_LIMIT(l, val...) \ + .type = (DRM_EXYNOS_IPP_LIMIT_TYPE_SIZE | DRM_EXYNOS_IPP_LIMIT_SIZE_##l), \ + val + +int exynos_drm_ipp_register(struct drm_device *dev, struct exynos_drm_ipp *ipp, + const struct exynos_drm_ipp_funcs *funcs, unsigned int caps, + const struct exynos_drm_ipp_formats *formats, const char *name); +void exynos_drm_ipp_unregister(struct drm_device *dev, struct exynos_drm_ipp *ipp); + +void exynos_drm_ipp_task_done(struct exynos_drm_ipp_task *task, int ret); + +#ifdef CONFIG_DRM_EXYNOS_IPP +int exynos_drm_ipp_get_res_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +int exynos_drm_ipp_get_caps_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +int exynos_drm_ipp_get_limits_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +int exynos_drm_ipp_commit_ioctl(struct drm_device *dev, + void *data, struct drm_file *file_priv); +#else +static inline int exynos_drm_ipp_get_res_ioctl(struct drm_device *dev, + void *data, struct drm_file *file_priv) +{ + return -ENODEV; +} +static inline int exynos_drm_ipp_get_caps_ioctl(struct drm_device *dev, + void *data, struct drm_file *file_priv) +{ + return -ENODEV; +} +static inline int exynos_drm_ipp_get_limits_ioctl(struct drm_device *dev, + void *data, struct drm_file *file_priv) +{ + return -ENODEV; +} +static inline int exynos_drm_ipp_commit_ioctl(struct drm_device *dev, + void *data, struct drm_file *file_priv) +{ + return -ENODEV; +} +#endif +#endif diff --git a/include/uapi/drm/exynos_drm.h b/include/uapi/drm/exynos_drm.h index 544db2cecb36..239e09022d75 100644 --- a/include/uapi/drm/exynos_drm.h +++ b/include/uapi/drm/exynos_drm.h @@ -134,6 +134,208 @@ struct drm_exynos_g2d_exec { __u64 async; };

+/* Exynos DRM IPP v2 API */ + +/** + * Enumerate available IPP hardware modules. + * + * @count_ipps: size of ipp_id array / number of ipp modules (set by driver) + * @reserved: padding + * @ipp_id_ptr: pointer to ipp_id array or NULL + */ +struct drm_exynos_ioctl_ipp_get_res { + __u32 count_ipps; + __u32 reserved; + __u64 ipp_id_ptr; +}; + +enum drm_exynos_ipp_format_type { + DRM_EXYNOS_IPP_FORMAT_SOURCE = 0x01, + DRM_EXYNOS_IPP_FORMAT_DESTINATION = 0x02, +}; + +struct exynos_drm_ipp_format { + __u32 fourcc; + __u32 type; + __u64 modifier; +}; + +enum drm_exynos_ipp_capability { + DRM_EXYNOS_IPP_CAP_CROP = 0x01, + DRM_EXYNOS_IPP_CAP_ROTATE = 0x02, + DRM_EXYNOS_IPP_CAP_SCALE = 0x04, + DRM_EXYNOS_IPP_CAP_CONVERT = 0x08, +}; + +/** + * Get IPP hardware capabilities and supported image formats. + * + * @ipp_id: id of IPP module to query + * @capabilities: bitmask of drm_exynos_ipp_capability (set by driver) + * @reserved: padding + * @formats_count: size of formats array (in entries) / number of filled + * formats (set by driver) + * @formats_ptr: pointer to formats array or NULL + */ +struct drm_exynos_ioctl_ipp_get_caps { + __u32 ipp_id; + __u32 capabilities; + __u32 reserved; + __u32 formats_count; + __u64 formats_ptr; +}; + +enum drm_exynos_ipp_limit_type { + /* size (horizontal/vertial) limits, in pixels (min, max, alignment) */ + DRM_EXYNOS_IPP_LIMIT_TYPE_SIZE = 0x0001, + /* scale ratio (horizonta/vertial), 16.16 fixed point (min, max) */ + DRM_EXYNOS_IPP_LIMIT_TYPE_SCALE = 0x0002, + + /* image buffer area */ + DRM_EXYNOS_IPP_LIMIT_SIZE_BUFFER = 0x0001 << 16, + /* src/dst rectangle area */ + DRM_EXYNOS_IPP_LIMIT_SIZE_AREA = 0x0002 << 16, + /* src/dst rectangle area when rotation enabled */ + DRM_EXYNOS_IPP_LIMIT_SIZE_ROTATED = 0x0003 << 16, + + DRM_EXYNOS_IPP_LIMIT_TYPE_MASK = 0x000f, + DRM_EXYNOS_IPP_LIMIT_SIZE_MASK = 0x000f << 16, +}; + +struct drm_exynos_ipp_limit_val { + __u32 min, max, align; +}; + +/** + * IPP module limitation. + * + * @type: limit type (see drm_exynos_ipp_limit_type enum) + * @h, @v: horizontal and vertical limits + */ +struct drm_exynos_ipp_limit { + __u32 type; + struct drm_exynos_ipp_limit_val h; + struct drm_exynos_ipp_limit_val v; +}; + +/** + * Get IPP limits for given image format. + * + * @ipp_id: id of IPP module to query + * @fourcc: image format code (see DRM_FORMAT_* in drm_fourcc.h) + * @modifier: image format modifier (see DRM_FORMAT_MOD_* in drm_fourcc.h) + * @type: source/destination identifier (drm_exynos_ipp_format_flag enum) + * @limits_size: size of limits array (in bytes) / size of filled entries + * (set by driver) + * @limits_ptr: pointer to limits array or NULL + */ +struct drm_exynos_ioctl_ipp_get_limits { + __u32 ipp_id; + __u32 fourcc; + __u64 modifier; + __u32 type; + __u32 limits_size; + __u64 limits_ptr; +}; + +enum drm_exynos_ipp_task_id { + /* buffer described by struct drm_exynos_ipp_task_buffer */ + DRM_EXYNOS_IPP_TASK_BUFFER = 0x0001, + /* rectangle described by struct drm_exynos_ipp_task_rect */ + DRM_EXYNOS_IPP_TASK_RECTANGLE = 0x0002, + /* transformation described by struct drm_exynos_ipp_task_transform */ + DRM_EXYNOS_IPP_TASK_TRANSFORM = 0x0003, + /* alpha configuration described by struct drm_exynos_ipp_task_alpha */ + DRM_EXYNOS_IPP_TASK_ALPHA = 0x0004, + + /* source image data (for buffer and rectangle chunks) */ + DRM_EXYNOS_IPP_TASK_TYPE_SOURCE = 0x0001 << 16, + /* destination image data (for buffer and rectangle chunks) */ + DRM_EXYNOS_IPP_TASK_TYPE_DESTINATION = 0x0002 << 16, +}; + +/** + * Memory buffer with image data. + * + * @id: must be DRM_EXYNOS_IPP_TASK_BUFFER + * other parameters are same as for AddFB2 generic DRM ioctl + */ +struct drm_exynos_ipp_task_buffer { + __u32 id; + __u32 fourcc; + __u32 width, height; + __u32 gem_id[4]; + __u32 offset[4]; + __u32 pitch[4]; + __u64 modifier; +}; + +/** + * Rectangle for processing. + * + * @id: must be DRM_EXYNOS_IPP_TASK_RECTANGLE + * @x,@y: left corner in pixels + * @w,@h: width/height in pixels + */ +struct drm_exynos_ipp_task_rect { + __u32 id; + __u32 x, y, w, h; +}; + +/** + * Image tranformation description. + * + * @id: must be DRM_EXYNOS_IPP_TASK_TRANSFORM + * @rotation: DRM_MODE_ROTATE_* and DRM_MODE_REFLECT_* values + */ +struct drm_exynos_ipp_task_transform { + __u32 id; + __u32 rotation; +}; + +/** + * Image global alpha configuration for formats without alpha values. + * + * @id: must be DRM_EXYNOS_IPP_TASK_ALPHA + * @value: global alpha value (0-255) + */ +struct drm_exynos_ipp_task_alpha { + __u32 id; + __u32 value; +}; + +enum drm_exynos_ipp_flag { + /* generate DRM event after processing */ + DRM_EXYNOS_IPP_FLAG_EVENT = 0x01, + /* dry run, only check task parameters */ + DRM_EXYNOS_IPP_FLAG_TEST_ONLY = 0x02, + /* non-blocking processing */ + DRM_EXYNOS_IPP_FLAG_NONBLOCK = 0x04, +}; + +#define DRM_EXYNOS_IPP_FLAGS (DRM_EXYNOS_IPP_FLAG_EVENT |\ + DRM_EXYNOS_IPP_FLAG_TEST_ONLY | DRM_EXYNOS_IPP_FLAG_NONBLOCK) + +/** + * Perform image processing described by array of drm_exynos_ipp_task_* + * structures (parameters array). + * + * @ipp_id: id of IPP module to run the task + * @flags: bitmask of drm_exynos_ipp_flag values + * @reserved: padding + * @params_size: size of parameters array (in bytes) + * @params_ptr: pointer to parameters array or NULL + * @user_data: (optional) data for drm event + */ +struct drm_exynos_ioctl_ipp_commit { + __u32 ipp_id; + __u32 flags; + __u32 reserved; + __u32 params_size; + __u64 params_ptr; + __u64 user_data; +}; + #define DRM_EXYNOS_GEM_CREATE 0x00 #define DRM_EXYNOS_GEM_MAP 0x01 /* Reserved 0x03 ~ 0x05 for exynos specific gem ioctl */ @@ -146,6 +348,11 @@ struct drm_exynos_g2d_exec { #define DRM_EXYNOS_G2D_EXEC 0x22

/* Reserved 0x30 ~ 0x33 for obsolete Exynos IPP ioctls */ +/* IPP - Image Post Processing */ +#define DRM_EXYNOS_IPP_GET_RESOURCES 0x40 +#define DRM_EXYNOS_IPP_GET_CAPS 0x41 +#define DRM_EXYNOS_IPP_GET_LIMITS 0x42 +#define DRM_EXYNOS_IPP_COMMIT 0x43

#define DRM_IOCTL_EXYNOS_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + \ DRM_EXYNOS_GEM_CREATE, struct drm_exynos_gem_create) @@ -164,8 +371,18 @@ struct drm_exynos_g2d_exec { #define DRM_IOCTL_EXYNOS_G2D_EXEC DRM_IOWR(DRM_COMMAND_BASE + \ DRM_EXYNOS_G2D_EXEC, struct drm_exynos_g2d_exec)

+#define DRM_IOCTL_EXYNOS_IPP_GET_RESOURCES DRM_IOWR(DRM_COMMAND_BASE + \ + DRM_EXYNOS_IPP_GET_RESOURCES, struct drm_exynos_ioctl_ipp_get_res) +#define DRM_IOCTL_EXYNOS_IPP_GET_CAPS DRM_IOWR(DRM_COMMAND_BASE + \ + DRM_EXYNOS_IPP_GET_CAPS, struct drm_exynos_ioctl_ipp_get_caps) +#define DRM_IOCTL_EXYNOS_IPP_GET_LIMITS DRM_IOWR(DRM_COMMAND_BASE + \ + DRM_EXYNOS_IPP_GET_LIMITS, struct drm_exynos_ioctl_ipp_get_limits) +#define DRM_IOCTL_EXYNOS_IPP_COMMIT DRM_IOWR(DRM_COMMAND_BASE + \ + DRM_EXYNOS_IPP_COMMIT, struct drm_exynos_ioctl_ipp_commit) + /* EXYNOS specific events */ #define DRM_EXYNOS_G2D_EVENT 0x80000000 +#define DRM_EXYNOS_IPP_EVENT 0x80000002

struct drm_exynos_g2d_event { struct drm_event base; @@ -176,6 +393,16 @@ struct drm_exynos_g2d_event { __u32 reserved; };

+struct drm_exynos_ipp_event { + struct drm_event base; + __u64 user_data; + __u32 tv_sec; + __u32 tv_usec; + __u32 ipp_id; + __u32 sequence; + __u64 reserved; +}; + #if defined(__cplusplus) } #endif