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drm/exynos: g2d: Convert to driver component API 

Exynos G2D driver is the last client of the custom Exynos 'sub-driver'
framework. In the current state it doesn't really resolve any of the
issues it has been designed for, as Exynos DRM is already built only
as a single kernel module. Remove the custom 'sub-driver' framework and
simply use generic component framework also in G2D driver.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Marek Szyprowski 2018-07-09 15:44:30 +02:00 committed by Inki Dae
parent 2d3bda7071
commit eb4d9796fa
6 changed files with 116 additions and 336 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/exynos/Makefile
View File

@ -4,7 +4,7 @@
# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
exynosdrm-y := exynos_drm_drv.o exynos_drm_crtc.o exynos_drm_fb.o \
exynos_drm_gem.o exynos_drm_core.o exynos_drm_plane.o
exynos_drm_gem.o exynos_drm_plane.o
exynosdrm-$(CONFIG_DRM_FBDEV_EMULATION) += exynos_drm_fbdev.o
exynosdrm-$(CONFIG_DRM_EXYNOS_IOMMU) += exynos_drm_iommu.o

119
drivers/gpu/drm/exynos/exynos_drm_core.c
View File

@ -1,119 +0,0 @@
/* exynos_drm_core.c
*
* Copyright (c) 2011 Samsung Electronics Co., Ltd.
* Author:
* Inki Dae <inki.dae@samsung.com>
* Joonyoung Shim <jy0922.shim@samsung.com>
* Seung-Woo Kim <sw0312.kim@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 <drm/drmP.h>
#include "exynos_drm_drv.h"
#include "exynos_drm_crtc.h"
static LIST_HEAD(exynos_drm_subdrv_list);
int exynos_drm_subdrv_register(struct exynos_drm_subdrv *subdrv)
{
if (!subdrv)
return -EINVAL;
list_add_tail(&subdrv->list, &exynos_drm_subdrv_list);
return 0;
}
int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *subdrv)
{
if (!subdrv)
return -EINVAL;
list_del(&subdrv->list);
return 0;
}
int exynos_drm_device_subdrv_probe(struct drm_device *dev)
{
struct exynos_drm_subdrv *subdrv, *n;
int err;
if (!dev)
return -EINVAL;
list_for_each_entry_safe(subdrv, n, &exynos_drm_subdrv_list, list) {
if (subdrv->probe) {
subdrv->drm_dev = dev;
/*
* this probe callback would be called by sub driver
* after setting of all resources to this sub driver,
* such as clock, irq and register map are done.
*/
err = subdrv->probe(dev, subdrv->dev);
if (err) {
DRM_DEBUG("exynos drm subdrv probe failed.\n");
list_del(&subdrv->list);
continue;
}
}
}
return 0;
}
int exynos_drm_device_subdrv_remove(struct drm_device *dev)
{
struct exynos_drm_subdrv *subdrv;
if (!dev) {
WARN(1, "Unexpected drm device unregister!\n");
return -EINVAL;
}
list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) {
if (subdrv->remove)
subdrv->remove(dev, subdrv->dev);
}
return 0;
}
int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file)
{
struct exynos_drm_subdrv *subdrv;
int ret;
list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) {
if (subdrv->open) {
ret = subdrv->open(dev, subdrv->dev, file);
if (ret)
goto err;
}
}
return 0;
err:
list_for_each_entry_continue_reverse(subdrv, &exynos_drm_subdrv_list, list) {
if (subdrv->close)
subdrv->close(dev, subdrv->dev, file);
}
return ret;
}
void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file)
{
struct exynos_drm_subdrv *subdrv;
list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) {
if (subdrv->close)
subdrv->close(dev, subdrv->dev, file);
}
}

14
drivers/gpu/drm/exynos/exynos_drm_drv.c
View File

@ -55,8 +55,7 @@ static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
return -ENOMEM;
file->driver_priv = file_priv;
ret = exynos_drm_subdrv_open(dev, file);
ret = g2d_open(dev, file);
if (ret)
goto err_file_priv_free;
@ -70,7 +69,7 @@ err_file_priv_free:
static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
{
exynos_drm_subdrv_close(dev, file);
g2d_close(dev, file);
kfree(file->driver_priv);
file->driver_priv = NULL;
}
@ -240,6 +239,7 @@ static struct exynos_drm_driver_info exynos_drm_drivers[] = {
DRM_COMPONENT_DRIVER | DRM_VIRTUAL_DEVICE
}, {
DRV_PTR(g2d_driver, CONFIG_DRM_EXYNOS_G2D),
DRM_COMPONENT_DRIVER
}, {
DRV_PTR(fimc_driver, CONFIG_DRM_EXYNOS_FIMC),
DRM_COMPONENT_DRIVER | DRM_FIMC_DEVICE,
@ -376,11 +376,6 @@ static int exynos_drm_bind(struct device *dev)
if (ret)
goto err_unbind_all;
/* Probe non kms sub drivers and virtual display driver. */
ret = exynos_drm_device_subdrv_probe(drm);
if (ret)
goto err_unbind_all;
drm_mode_config_reset(drm);
/*
@ -411,7 +406,6 @@ err_cleanup_fbdev:
exynos_drm_fbdev_fini(drm);
err_cleanup_poll:
drm_kms_helper_poll_fini(drm);
exynos_drm_device_subdrv_remove(drm);
err_unbind_all:
component_unbind_all(drm->dev, drm);
err_mode_config_cleanup:
@ -431,8 +425,6 @@ static void exynos_drm_unbind(struct device *dev)
drm_dev_unregister(drm);
exynos_drm_device_subdrv_remove(drm);
exynos_drm_fbdev_fini(drm);
drm_kms_helper_poll_fini(drm);

47
drivers/gpu/drm/exynos/exynos_drm_drv.h
View File

@ -179,17 +179,13 @@ static inline void exynos_drm_pipe_clk_enable(struct exynos_drm_crtc *crtc,
crtc->pipe_clk->enable(crtc->pipe_clk, enable);
}
struct exynos_drm_g2d_private {
struct device *dev;
struct drm_exynos_file_private {
/* for g2d api */
struct list_head inuse_cmdlist;
struct list_head event_list;
struct list_head userptr_list;
};
struct drm_exynos_file_private {
struct exynos_drm_g2d_private *g2d_priv;
};
/*
* Exynos drm private structure.
*
@ -201,6 +197,7 @@ struct exynos_drm_private {
struct drm_fb_helper *fb_helper;
struct drm_atomic_state *suspend_state;
struct device *g2d_dev;
struct device *dma_dev;
void *mapping;
@ -217,44 +214,6 @@ static inline struct device *to_dma_dev(struct drm_device *dev)
return priv->dma_dev;
}
/*
* Exynos drm sub driver structure.
*
* @list: sub driver has its own list object to register to exynos drm driver.
* @dev: pointer to device object for subdrv device driver.
* @drm_dev: pointer to drm_device and this pointer would be set
* when sub driver calls exynos_drm_subdrv_register().
* @probe: this callback would be called by exynos drm driver after
* subdrv is registered to it.
* @remove: this callback is used to release resources created
* by probe callback.
* @open: this would be called with drm device file open.
* @close: this would be called with drm device file close.
*/
struct exynos_drm_subdrv {
struct list_head list;
struct device *dev;
struct drm_device *drm_dev;
int (*probe)(struct drm_device *drm_dev, struct device *dev);
void (*remove)(struct drm_device *drm_dev, struct device *dev);
int (*open)(struct drm_device *drm_dev, struct device *dev,
struct drm_file *file);
void (*close)(struct drm_device *drm_dev, struct device *dev,
struct drm_file *file);
};
/* This function would be called by non kms drivers such as g2d and ipp. */
int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv);
/* this function removes subdrv list from exynos drm driver */
int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv);
int exynos_drm_device_subdrv_probe(struct drm_device *dev);
int exynos_drm_device_subdrv_remove(struct drm_device *dev);
int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file);
void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file);
#ifdef CONFIG_DRM_EXYNOS_DPI
struct drm_encoder *exynos_dpi_probe(struct device *dev);
int exynos_dpi_remove(struct drm_encoder *encoder);

259
drivers/gpu/drm/exynos/exynos_drm_g2d.c
View File

@ -9,6 +9,7 @@
#include <linux/kernel.h>
#include <linux/clk.h>
#include <linux/component.h>
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/io.h>
@ -237,7 +238,7 @@ struct g2d_data {
int irq;
struct workqueue_struct *g2d_workq;
struct work_struct runqueue_work;
struct exynos_drm_subdrv subdrv;
struct drm_device *drm_dev;
unsigned long flags;
/* cmdlist */
@ -268,14 +269,13 @@ static int g2d_init_cmdlist(struct g2d_data *g2d)
{
struct device *dev = g2d->dev;
struct g2d_cmdlist_node *node = g2d->cmdlist_node;
struct exynos_drm_subdrv *subdrv = &g2d->subdrv;
int nr;
int ret;
struct g2d_buf_info *buf_info;
g2d->cmdlist_dma_attrs = DMA_ATTR_WRITE_COMBINE;
g2d->cmdlist_pool_virt = dma_alloc_attrs(to_dma_dev(subdrv->drm_dev),
g2d->cmdlist_pool_virt = dma_alloc_attrs(to_dma_dev(g2d->drm_dev),
G2D_CMDLIST_POOL_SIZE,
&g2d->cmdlist_pool, GFP_KERNEL,
g2d->cmdlist_dma_attrs);
@ -308,7 +308,7 @@ static int g2d_init_cmdlist(struct g2d_data *g2d)
return 0;
err:
dma_free_attrs(to_dma_dev(subdrv->drm_dev), G2D_CMDLIST_POOL_SIZE,
dma_free_attrs(to_dma_dev(g2d->drm_dev), G2D_CMDLIST_POOL_SIZE,
g2d->cmdlist_pool_virt,
g2d->cmdlist_pool, g2d->cmdlist_dma_attrs);
return ret;
@ -316,12 +316,10 @@ err:
static void g2d_fini_cmdlist(struct g2d_data *g2d)
{
struct exynos_drm_subdrv *subdrv = &g2d->subdrv;
kfree(g2d->cmdlist_node);
if (g2d->cmdlist_pool_virt && g2d->cmdlist_pool) {
dma_free_attrs(to_dma_dev(subdrv->drm_dev),
dma_free_attrs(to_dma_dev(g2d->drm_dev),
G2D_CMDLIST_POOL_SIZE,
g2d->cmdlist_pool_virt,
g2d->cmdlist_pool, g2d->cmdlist_dma_attrs);
@ -355,27 +353,27 @@ static void g2d_put_cmdlist(struct g2d_data *g2d, struct g2d_cmdlist_node *node)
mutex_unlock(&g2d->cmdlist_mutex);
}
static void g2d_add_cmdlist_to_inuse(struct exynos_drm_g2d_private *g2d_priv,
static void g2d_add_cmdlist_to_inuse(struct drm_exynos_file_private *file_priv,
struct g2d_cmdlist_node *node)
{
struct g2d_cmdlist_node *lnode;
if (list_empty(&g2d_priv->inuse_cmdlist))
if (list_empty(&file_priv->inuse_cmdlist))
goto add_to_list;
/* this links to base address of new cmdlist */
lnode = list_entry(g2d_priv->inuse_cmdlist.prev,
lnode = list_entry(file_priv->inuse_cmdlist.prev,
struct g2d_cmdlist_node, list);
lnode->cmdlist->data[lnode->cmdlist->last] = node->dma_addr;
add_to_list:
list_add_tail(&node->list, &g2d_priv->inuse_cmdlist);
list_add_tail(&node->list, &file_priv->inuse_cmdlist);
if (node->event)
list_add_tail(&node->event->base.link, &g2d_priv->event_list);
list_add_tail(&node->event->base.link, &file_priv->event_list);
}
static void g2d_userptr_put_dma_addr(struct drm_device *drm_dev,
static void g2d_userptr_put_dma_addr(struct g2d_data *g2d,
unsigned long obj,
bool force)
{
@ -398,7 +396,7 @@ static void g2d_userptr_put_dma_addr(struct drm_device *drm_dev,
return;
out:
dma_unmap_sg(to_dma_dev(drm_dev), g2d_userptr->sgt->sgl,
dma_unmap_sg(to_dma_dev(g2d->drm_dev), g2d_userptr->sgt->sgl,
g2d_userptr->sgt->nents, DMA_BIDIRECTIONAL);
pages = frame_vector_pages(g2d_userptr->vec);
@ -419,16 +417,14 @@ out:
kfree(g2d_userptr);
}
static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev,
static dma_addr_t *g2d_userptr_get_dma_addr(struct g2d_data *g2d,
unsigned long userptr,
unsigned long size,
struct drm_file *filp,
unsigned long *obj)
{
struct drm_exynos_file_private *file_priv = filp->driver_priv;
struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv;
struct g2d_cmdlist_userptr *g2d_userptr;
struct g2d_data *g2d;
struct sg_table *sgt;
unsigned long start, end;
unsigned int npages, offset;
@ -439,10 +435,8 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev,
return ERR_PTR(-EINVAL);
}
g2d = dev_get_drvdata(g2d_priv->dev);
/* check if userptr already exists in userptr_list. */
list_for_each_entry(g2d_userptr, &g2d_priv->userptr_list, list) {
list_for_each_entry(g2d_userptr, &file_priv->userptr_list, list) {
if (g2d_userptr->userptr == userptr) {
/*
* also check size because there could be same address
@ -517,7 +511,7 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev,
g2d_userptr->sgt = sgt;
if (!dma_map_sg(to_dma_dev(drm_dev), sgt->sgl, sgt->nents,
if (!dma_map_sg(to_dma_dev(g2d->drm_dev), sgt->sgl, sgt->nents,
DMA_BIDIRECTIONAL)) {
DRM_ERROR("failed to map sgt with dma region.\n");
ret = -ENOMEM;
@ -527,7 +521,7 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev,
g2d_userptr->dma_addr = sgt->sgl[0].dma_address;
g2d_userptr->userptr = userptr;
list_add_tail(&g2d_userptr->list, &g2d_priv->userptr_list);
list_add_tail(&g2d_userptr->list, &file_priv->userptr_list);
if (g2d->current_pool + (npages << PAGE_SHIFT) < g2d->max_pool) {
g2d->current_pool += npages << PAGE_SHIFT;
@ -556,17 +550,14 @@ err_free:
return ERR_PTR(ret);
}
static void g2d_userptr_free_all(struct drm_device *drm_dev,
struct g2d_data *g2d,
struct drm_file *filp)
static void g2d_userptr_free_all(struct g2d_data *g2d, struct drm_file *filp)
{
struct drm_exynos_file_private *file_priv = filp->driver_priv;
struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv;
struct g2d_cmdlist_userptr *g2d_userptr, *n;
list_for_each_entry_safe(g2d_userptr, n, &g2d_priv->userptr_list, list)
list_for_each_entry_safe(g2d_userptr, n, &file_priv->userptr_list, list)
if (g2d_userptr->in_pool)
g2d_userptr_put_dma_addr(drm_dev,
g2d_userptr_put_dma_addr(g2d,
(unsigned long)g2d_userptr,
true);
@ -758,7 +749,7 @@ static int g2d_map_cmdlist_gem(struct g2d_data *g2d,
goto err;
}
addr = g2d_userptr_get_dma_addr(drm_dev,
addr = g2d_userptr_get_dma_addr(g2d,
g2d_userptr.userptr,
g2d_userptr.size,
file,
@ -785,7 +776,6 @@ static void g2d_unmap_cmdlist_gem(struct g2d_data *g2d,
struct g2d_cmdlist_node *node,
struct drm_file *filp)
{
struct exynos_drm_subdrv *subdrv = &g2d->subdrv;
struct g2d_buf_info *buf_info = &node->buf_info;
int i;
@ -800,11 +790,9 @@ static void g2d_unmap_cmdlist_gem(struct g2d_data *g2d,
handle = buf_info->handles[reg_type];
if (buf_info->types[reg_type] == BUF_TYPE_GEM)
exynos_drm_gem_put_dma_addr(subdrv->drm_dev, handle,
filp);
exynos_drm_gem_put_dma_addr(g2d->drm_dev, handle, filp);
else
g2d_userptr_put_dma_addr(subdrv->drm_dev, handle,
false);
g2d_userptr_put_dma_addr(g2d, handle, false);
buf_info->reg_types[i] = REG_TYPE_NONE;
buf_info->handles[reg_type] = 0;
@ -922,7 +910,7 @@ static void g2d_runqueue_worker(struct work_struct *work)
static void g2d_finish_event(struct g2d_data *g2d, u32 cmdlist_no)
{
struct drm_device *drm_dev = g2d->subdrv.drm_dev;
struct drm_device *drm_dev = g2d->drm_dev;
struct g2d_runqueue_node *runqueue_node = g2d->runqueue_node;
struct drm_exynos_pending_g2d_event *e;
struct timespec64 now;
@ -1031,7 +1019,7 @@ out:
mutex_unlock(&g2d->runqueue_mutex);
}
static int g2d_check_reg_offset(struct device *dev,
static int g2d_check_reg_offset(struct g2d_data *g2d,
struct g2d_cmdlist_node *node,
int nr, bool for_addr)
{
@ -1131,7 +1119,7 @@ static int g2d_check_reg_offset(struct device *dev,
return 0;
err:
dev_err(dev, "Bad register offset: 0x%lx\n", cmdlist->data[index]);
dev_err(g2d->dev, "Bad register offset: 0x%lx\n", cmdlist->data[index]);
return -EINVAL;
}
@ -1139,23 +1127,8 @@ err:
int exynos_g2d_get_ver_ioctl(struct drm_device *drm_dev, void *data,
struct drm_file *file)
{
struct drm_exynos_file_private *file_priv = file->driver_priv;
struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv;
struct device *dev;
struct g2d_data *g2d;
struct drm_exynos_g2d_get_ver *ver = data;
if (!g2d_priv)
return -ENODEV;
dev = g2d_priv->dev;
if (!dev)
return -ENODEV;
g2d = dev_get_drvdata(dev);
if (!g2d)
return -EFAULT;
ver->major = G2D_HW_MAJOR_VER;
ver->minor = G2D_HW_MINOR_VER;
@ -1166,9 +1139,8 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data,
struct drm_file *file)
{
struct drm_exynos_file_private *file_priv = file->driver_priv;
struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv;
struct device *dev;
struct g2d_data *g2d;
struct exynos_drm_private *priv = drm_dev->dev_private;
struct g2d_data *g2d = dev_get_drvdata(priv->g2d_dev);
struct drm_exynos_g2d_set_cmdlist *req = data;
struct drm_exynos_g2d_cmd *cmd;
struct drm_exynos_pending_g2d_event *e;
@ -1177,17 +1149,6 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data,
int size;
int ret;
if (!g2d_priv)
return -ENODEV;
dev = g2d_priv->dev;
if (!dev)
return -ENODEV;
g2d = dev_get_drvdata(dev);
if (!g2d)
return -EFAULT;
node = g2d_get_cmdlist(g2d);
if (!node)
return -ENOMEM;
@ -1199,7 +1160,7 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data,
*/
if (req->cmd_nr > G2D_CMDLIST_DATA_NUM ||
req->cmd_buf_nr > G2D_CMDLIST_DATA_NUM) {
dev_err(dev, "number of submitted G2D commands exceeds limit\n");
dev_err(g2d->dev, "number of submitted G2D commands exceeds limit\n");
return -EINVAL;
}
@ -1267,7 +1228,7 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data,
*/
size = cmdlist->last + req->cmd_nr * 2 + req->cmd_buf_nr * 2 + 2;
if (size > G2D_CMDLIST_DATA_NUM) {
dev_err(dev, "cmdlist size is too big\n");
dev_err(g2d->dev, "cmdlist size is too big\n");
ret = -EINVAL;
goto err_free_event;
}
@ -1282,7 +1243,7 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data,
}
cmdlist->last += req->cmd_nr * 2;
ret = g2d_check_reg_offset(dev, node, req->cmd_nr, false);
ret = g2d_check_reg_offset(g2d, node, req->cmd_nr, false);
if (ret < 0)
goto err_free_event;
@ -1301,7 +1262,7 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data,
}
cmdlist->last += req->cmd_buf_nr * 2;
ret = g2d_check_reg_offset(dev, node, req->cmd_buf_nr, true);
ret = g2d_check_reg_offset(g2d, node, req->cmd_buf_nr, true);
if (ret < 0)
goto err_free_event;
@ -1319,7 +1280,7 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data,
/* tail */
cmdlist->data[cmdlist->last] = 0;
g2d_add_cmdlist_to_inuse(g2d_priv, node);
g2d_add_cmdlist_to_inuse(file_priv, node);
return 0;
@ -1337,25 +1298,13 @@ int exynos_g2d_exec_ioctl(struct drm_device *drm_dev, void *data,
struct drm_file *file)
{
struct drm_exynos_file_private *file_priv = file->driver_priv;
struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv;
struct device *dev;
struct g2d_data *g2d;
struct exynos_drm_private *priv = drm_dev->dev_private;
struct g2d_data *g2d = dev_get_drvdata(priv->g2d_dev);
struct drm_exynos_g2d_exec *req = data;
struct g2d_runqueue_node *runqueue_node;
struct list_head *run_cmdlist;
struct list_head *event_list;
if (!g2d_priv)
return -ENODEV;
dev = g2d_priv->dev;
if (!dev)
return -ENODEV;
g2d = dev_get_drvdata(dev);
if (!g2d)
return -EFAULT;
runqueue_node = kmem_cache_alloc(g2d->runqueue_slab, GFP_KERNEL);
if (!runqueue_node)
return -ENOMEM;
@ -1367,11 +1316,11 @@ int exynos_g2d_exec_ioctl(struct drm_device *drm_dev, void *data,
init_completion(&runqueue_node->complete);
runqueue_node->async = req->async;
list_splice_init(&g2d_priv->inuse_cmdlist, run_cmdlist);
list_splice_init(&g2d_priv->event_list, event_list);
list_splice_init(&file_priv->inuse_cmdlist, run_cmdlist);
list_splice_init(&file_priv->event_list, event_list);
if (list_empty(run_cmdlist)) {
dev_err(dev, "there is no inuse cmdlist\n");
dev_err(g2d->dev, "there is no inuse cmdlist\n");
kmem_cache_free(g2d->runqueue_slab, runqueue_node);
return -EPERM;
}
@ -1395,71 +1344,28 @@ out:
return 0;
}
static int g2d_subdrv_probe(struct drm_device *drm_dev, struct device *dev)
{
struct g2d_data *g2d;
int ret;
g2d = dev_get_drvdata(dev);
if (!g2d)
return -EFAULT;
/* allocate dma-aware cmdlist buffer. */
ret = g2d_init_cmdlist(g2d);
if (ret < 0) {
dev_err(dev, "cmdlist init failed\n");
return ret;
}
ret = drm_iommu_attach_device(drm_dev, dev);
if (ret < 0) {
dev_err(dev, "failed to enable iommu.\n");
g2d_fini_cmdlist(g2d);
}
return ret;
}
static void g2d_subdrv_remove(struct drm_device *drm_dev, struct device *dev)
{
drm_iommu_detach_device(drm_dev, dev);
}
static int g2d_open(struct drm_device *drm_dev, struct device *dev,
struct drm_file *file)
int g2d_open(struct drm_device *drm_dev, struct drm_file *file)
{
struct drm_exynos_file_private *file_priv = file->driver_priv;
struct exynos_drm_g2d_private *g2d_priv;
g2d_priv = kzalloc(sizeof(*g2d_priv), GFP_KERNEL);
if (!g2d_priv)
return -ENOMEM;
g2d_priv->dev = dev;
file_priv->g2d_priv = g2d_priv;
INIT_LIST_HEAD(&g2d_priv->inuse_cmdlist);
INIT_LIST_HEAD(&g2d_priv->event_list);
INIT_LIST_HEAD(&g2d_priv->userptr_list);
INIT_LIST_HEAD(&file_priv->inuse_cmdlist);
INIT_LIST_HEAD(&file_priv->event_list);
INIT_LIST_HEAD(&file_priv->userptr_list);
return 0;
}
static void g2d_close(struct drm_device *drm_dev, struct device *dev,
struct drm_file *file)
void g2d_close(struct drm_device *drm_dev, struct drm_file *file)
{
struct drm_exynos_file_private *file_priv = file->driver_priv;
struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv;
struct exynos_drm_private *priv = drm_dev->dev_private;
struct g2d_data *g2d;
struct g2d_cmdlist_node *node, *n;
if (!dev)
if (!priv->g2d_dev)
return;
g2d = dev_get_drvdata(dev);
if (!g2d)
return;
g2d = dev_get_drvdata(priv->g2d_dev);
/* Remove the runqueue nodes that belong to us. */
mutex_lock(&g2d->runqueue_mutex);
@ -1480,24 +1386,70 @@ static void g2d_close(struct drm_device *drm_dev, struct device *dev,
* Properly unmap these buffers here.
*/
mutex_lock(&g2d->cmdlist_mutex);
list_for_each_entry_safe(node, n, &g2d_priv->inuse_cmdlist, list) {
list_for_each_entry_safe(node, n, &file_priv->inuse_cmdlist, list) {
g2d_unmap_cmdlist_gem(g2d, node, file);
list_move_tail(&node->list, &g2d->free_cmdlist);
}
mutex_unlock(&g2d->cmdlist_mutex);
/* release all g2d_userptr in pool. */
g2d_userptr_free_all(drm_dev, g2d, file);
kfree(file_priv->g2d_priv);
g2d_userptr_free_all(g2d, file);
}
static int g2d_bind(struct device *dev, struct device *master, void *data)
{
struct g2d_data *g2d = dev_get_drvdata(dev);
struct drm_device *drm_dev = data;
struct exynos_drm_private *priv = drm_dev->dev_private;
int ret;
g2d->drm_dev = drm_dev;
/* allocate dma-aware cmdlist buffer. */
ret = g2d_init_cmdlist(g2d);
if (ret < 0) {
dev_err(dev, "cmdlist init failed\n");
return ret;
}
ret = drm_iommu_attach_device(drm_dev, dev);
if (ret < 0) {
dev_err(dev, "failed to enable iommu.\n");
g2d_fini_cmdlist(g2d);
return ret;
}
priv->g2d_dev = dev;
dev_info(dev, "The Exynos G2D (ver %d.%d) successfully registered.\n",
G2D_HW_MAJOR_VER, G2D_HW_MINOR_VER);
return 0;
}
static void g2d_unbind(struct device *dev, struct device *master, void *data)
{
struct g2d_data *g2d = dev_get_drvdata(dev);
struct drm_device *drm_dev = data;
struct exynos_drm_private *priv = drm_dev->dev_private;
/* Suspend operation and wait for engine idle. */
set_bit(G2D_BIT_SUSPEND_RUNQUEUE, &g2d->flags);
g2d_wait_finish(g2d, NULL);
priv->g2d_dev = NULL;
cancel_work_sync(&g2d->runqueue_work);
drm_iommu_detach_device(g2d->drm_dev, dev);
}
static const struct component_ops g2d_component_ops = {
.bind = g2d_bind,
.unbind = g2d_unbind,
};
static int g2d_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct resource *res;
struct g2d_data *g2d;
struct exynos_drm_subdrv *subdrv;
int ret;
g2d = devm_kzalloc(dev, sizeof(*g2d), GFP_KERNEL);
@ -1564,22 +1516,12 @@ static int g2d_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, g2d);
subdrv = &g2d->subdrv;
subdrv->dev = dev;
subdrv->probe = g2d_subdrv_probe;
subdrv->remove = g2d_subdrv_remove;
subdrv->open = g2d_open;
subdrv->close = g2d_close;
ret = exynos_drm_subdrv_register(subdrv);
ret = component_add(dev, &g2d_component_ops);
if (ret < 0) {
dev_err(dev, "failed to register drm g2d device\n");
goto err_put_clk;
}
dev_info(dev, "The Exynos G2D (ver %d.%d) successfully probed.\n",
G2D_HW_MAJOR_VER, G2D_HW_MINOR_VER);
return 0;
err_put_clk:
@ -1595,12 +1537,7 @@ static int g2d_remove(struct platform_device *pdev)
{
struct g2d_data *g2d = platform_get_drvdata(pdev);
/* Suspend operation and wait for engine idle. */
set_bit(G2D_BIT_SUSPEND_RUNQUEUE, &g2d->flags);
g2d_wait_finish(g2d, NULL);
cancel_work_sync(&g2d->runqueue_work);
exynos_drm_subdrv_unregister(&g2d->subdrv);
component_del(&pdev->dev, &g2d_component_ops);
/* There should be no locking needed here. */
g2d_remove_runqueue_nodes(g2d, NULL);

11
drivers/gpu/drm/exynos/exynos_drm_g2d.h
View File

@ -14,6 +14,9 @@ extern int exynos_g2d_set_cmdlist_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int exynos_g2d_exec_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int g2d_open(struct drm_device *drm_dev, struct drm_file *file);
extern void g2d_close(struct drm_device *drm_dev, struct drm_file *file);
#else
static inline int exynos_g2d_get_ver_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
@ -33,4 +36,12 @@ static inline int exynos_g2d_exec_ioctl(struct drm_device *dev, void *data,
{
return -ENODEV;
}
int g2d_open(struct drm_device *drm_dev, struct drm_file *file)
{
return 0;
}
void g2d_close(struct drm_device *drm_dev, struct drm_file *file)
{ }
#endif