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    Subject[RFC v2 8/8] drm: tegra: Add gr2d device
    Date
    Add client driver for 2D device.

    Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
    Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
    ---
    drivers/gpu/drm/tegra/Makefile | 2 +-
    drivers/gpu/drm/tegra/drm.c | 231 +++++++++++++++++++++++++++++++++++++++-
    drivers/gpu/drm/tegra/drm.h | 42 ++++++--
    drivers/gpu/drm/tegra/gr2d.c | 224 ++++++++++++++++++++++++++++++++++++++
    include/drm/tegra_drm.h | 129 ++++++++++++++++++++++
    5 files changed, 615 insertions(+), 13 deletions(-)
    create mode 100644 drivers/gpu/drm/tegra/gr2d.c
    create mode 100644 include/drm/tegra_drm.h

    diff --git a/drivers/gpu/drm/tegra/Makefile b/drivers/gpu/drm/tegra/Makefile
    index 53ea383..5e85042 100644
    --- a/drivers/gpu/drm/tegra/Makefile
    +++ b/drivers/gpu/drm/tegra/Makefile
    @@ -1,7 +1,7 @@
    ccflags-y := -Iinclude/drm
    ccflags-$(CONFIG_DRM_TEGRA_DEBUG) += -DDEBUG

    -tegra-drm-y := drm.o fb.o dc.o
    +tegra-drm-y := drm.o fb.o dc.o gr2d.o
    tegra-drm-y += output.o rgb.o hdmi.o tvo.o dsi.o
    tegra-drm-y += plane.o dmabuf.o

    diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
    index f78a31b..c35e547 100644
    --- a/drivers/gpu/drm/tegra/drm.c
    +++ b/drivers/gpu/drm/tegra/drm.c
    @@ -10,6 +10,7 @@
    #include <linux/module.h>
    #include <linux/of_address.h>
    #include <linux/of_platform.h>
    +#include <linux/nvhost.h>

    #include <mach/clk.h>
    #include <linux/dma-mapping.h>
    @@ -55,10 +56,12 @@ static int tegra_drm_parse_dt(void)
    "nvidia,tegra20-hdmi",
    "nvidia,tegra20-tvo",
    "nvidia,tegra20-dsi",
    + "nvidia,tegra20-gr2d",
    "nvidia,tegra30-dc",
    "nvidia,tegra30-hdmi",
    "nvidia,tegra30-tvo",
    - "nvidia,tegra30-dsi"
    + "nvidia,tegra30-dsi",
    + "nvidia,tegra30-gr2d"
    };
    unsigned int i;
    int err;
    @@ -177,7 +180,17 @@ static int tegra_drm_unload(struct drm_device *drm)

    static int tegra_drm_open(struct drm_device *drm, struct drm_file *filp)
    {
    - return 0;
    + struct tegra_drm_fpriv *fpriv;
    + int err = 0;
    +
    + fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL);
    + if (!fpriv)
    + return -ENOMEM;
    +
    + INIT_LIST_HEAD(&fpriv->contexts);
    + filp->driver_priv = fpriv;
    +
    + return err;
    }

    static void tegra_drm_lastclose(struct drm_device *drm)
    @@ -207,8 +220,13 @@ static int __init tegra_drm_init(void)
    if (err < 0)
    goto unregister_tvo;

    + err = platform_driver_register(&tegra_gr2d_driver);
    + if (err < 0)
    + goto unregister_dsi;
    return 0;

    +unregister_dsi:
    + platform_driver_unregister(&tegra_dsi_driver);
    unregister_tvo:
    platform_driver_unregister(&tegra_tvo_driver);
    unregister_hdmi:
    @@ -221,6 +239,7 @@ module_init(tegra_drm_init);

    static void __exit tegra_drm_exit(void)
    {
    + platform_driver_unregister(&tegra_gr2d_driver);
    platform_driver_unregister(&tegra_dsi_driver);
    platform_driver_unregister(&tegra_tvo_driver);
    platform_driver_unregister(&tegra_hdmi_driver);
    @@ -232,7 +251,215 @@ MODULE_AUTHOR("Thierry Reding <thierry.reding@avionic-design.de>");
    MODULE_DESCRIPTION("NVIDIA Tegra DRM driver");
    MODULE_LICENSE("GPL");

    +static int
    +tegra_drm_ioctl_syncpt_read(struct drm_device *drm, void *data,
    + struct drm_file *file_priv)
    +{
    + struct tegra_drm_syncpt_read_args *args = data;
    +
    + dev_dbg(drm->dev, "> %s(drm=%p, id=%d)\n", __func__, drm, args->id);
    + args->value = host1x_syncpt_read(args->id);
    + dev_dbg(drm->dev, "< %s(value=%d)\n", __func__, args->value);
    + return 0;
    +}
    +
    +static int
    +tegra_drm_ioctl_syncpt_incr(struct drm_device *drm, void *data,
    + struct drm_file *file_priv)
    +{
    + struct tegra_drm_syncpt_incr_args *args = data;
    + dev_dbg(drm->dev, "> %s(drm=%p, id=%d)\n", __func__, drm, args->id);
    + host1x_syncpt_incr(args->id);
    + dev_dbg(drm->dev, "< %s()\n", __func__);
    + return 0;
    +}
    +
    +static int
    +tegra_drm_ioctl_syncpt_wait(struct drm_device *drm, void *data,
    + struct drm_file *file_priv)
    +{
    + struct tegra_drm_syncpt_wait_args *args = data;
    + int err;
    +
    + dev_dbg(drm->dev, "> %s(drm=%p, id=%d, thresh=%d)\n", __func__, drm,
    + args->id, args->thresh);
    + err = host1x_syncpt_wait(args->id, args->thresh,
    + args->timeout, &args->value);
    + dev_dbg(drm->dev, "< %s() = %d\n", __func__, err);
    +
    + return err;
    +}
    +
    +static int
    +tegra_drm_ioctl_open_channel(struct drm_device *drm, void *data,
    + struct drm_file *file_priv)
    +{
    + struct tegra_drm_open_channel_args *args = data;
    + struct tegra_drm_client *client;
    + struct tegra_drm_context *context;
    + struct tegra_drm_fpriv *fpriv = tegra_drm_fpriv(file_priv);
    + int err = 0;
    +
    + dev_dbg(drm->dev, "> %s(fpriv=%p, class=%x)\n", __func__,
    + fpriv, args->class);
    +
    + context = kzalloc(sizeof(*context), GFP_KERNEL);
    + if (!context) {
    + err = -ENOMEM;
    + goto out;
    + }
    +
    + list_for_each_entry(client, &tegra_drm_subdrv_list, list) {
    + if (client->class == args->class) {
    + dev_dbg(drm->dev, "opening client %x\n", args->class);
    + context->client = client;
    + err = client->ops->open_channel(client, context);
    + if (err)
    + goto out;
    +
    + dev_dbg(drm->dev, "context %p\n", context);
    + list_add(&context->list, &fpriv->contexts);
    + args->context = context;
    + goto out;
    + }
    + }
    + err = -ENODEV;
    +
    +out:
    + if (err)
    + kfree(context);
    +
    + dev_dbg(drm->dev, "< %s() = %d\n", __func__, err);
    + return err;
    +}
    +
    +static int
    +tegra_drm_ioctl_close_channel(struct drm_device *drm, void *data,
    + struct drm_file *file_priv)
    +{
    + struct tegra_drm_open_channel_args *args = data;
    + struct tegra_drm_context *context;
    + struct tegra_drm_fpriv *fpriv = tegra_drm_fpriv(file_priv);
    + int err = 0;
    +
    + dev_dbg(drm->dev, "> %s(fpriv=%p)\n", __func__, fpriv);
    + list_for_each_entry(context, &fpriv->contexts, list) {
    + if (context == args->context) {
    + context->client->ops->close_channel(context);
    + list_del(&context->list);
    + kfree(context);
    + goto out;
    + }
    + }
    + err = -EINVAL;
    +
    +out:
    + dev_dbg(drm->dev, "< %s() = %d\n", __func__, err);
    + return err;
    +}
    +
    +static int
    +tegra_drm_ioctl_get_syncpoints(struct drm_device *drm, void *data,
    + struct drm_file *file_priv)
    +{
    + struct tegra_drm_get_channel_param_args *args = data;
    + struct tegra_drm_context *context;
    + struct tegra_drm_fpriv *fpriv = tegra_drm_fpriv(file_priv);
    + int err = 0;
    +
    + list_for_each_entry(context, &fpriv->contexts, list) {
    + if (context == args->context) {
    + args->value =
    + context->client->ops->get_syncpoints(context);
    + goto out;
    + }
    + }
    + err = -ENODEV;
    +
    +out:
    + return err;
    +}
    +
    +static int
    +tegra_drm_ioctl_get_modmutexes(struct drm_device *drm, void *data,
    + struct drm_file *file_priv)
    +{
    + struct tegra_drm_get_channel_param_args *args = data;
    + struct tegra_drm_context *context;
    + struct tegra_drm_fpriv *fpriv = tegra_drm_fpriv(file_priv);
    + int err = 0;
    +
    + list_for_each_entry(context, &fpriv->contexts, list) {
    + if (context == args->context) {
    + args->value =
    + context->client->ops->get_modmutexes(context);
    + goto out;
    + }
    + }
    + err = -ENODEV;
    +
    +out:
    + return err;
    +}
    +
    +static int
    +tegra_drm_ioctl_submit(struct drm_device *drm, void *data,
    + struct drm_file *file_priv)
    +{
    + struct tegra_drm_submit_args *args = data;
    + struct tegra_drm_context *context;
    + struct tegra_drm_fpriv *fpriv = tegra_drm_fpriv(file_priv);
    + int err = 0;
    +
    + list_for_each_entry(context, &fpriv->contexts, list) {
    + if (context == args->context) {
    + err = context->client->ops->submit(context, args);
    + goto out;
    + }
    + }
    + err = -ENODEV;
    +
    +out:
    + return err;
    +
    +}
    +
    +static int
    +tegra_drm_create_ioctl(struct drm_device *drm, void *data,
    + struct drm_file *file_priv)
    +{
    + struct tegra_gem_create *args = data;
    + struct drm_gem_cma_object *cma_obj;
    + int ret;
    +
    + cma_obj = drm_gem_cma_create(drm, args->size);
    + if (IS_ERR(cma_obj))
    + goto err_cma_create;
    +
    + ret = drm_gem_handle_create(file_priv, &cma_obj->base, &args->handle);
    + if (ret)
    + goto err_handle_create;
    +
    + drm_gem_object_unreference(&cma_obj->base);
    +
    + return 0;
    +
    +err_handle_create:
    + drm_gem_cma_free_object(&cma_obj->base);
    +err_cma_create:
    + return -ENOMEM;
    +}
    +
    static struct drm_ioctl_desc tegra_drm_ioctls[] = {
    + DRM_IOCTL_DEF_DRV(TEGRA_GEM_CREATE, tegra_drm_create_ioctl, DRM_UNLOCKED | DRM_AUTH),
    + DRM_IOCTL_DEF_DRV(TEGRA_DRM_SYNCPT_READ, tegra_drm_ioctl_syncpt_read, DRM_UNLOCKED),
    + DRM_IOCTL_DEF_DRV(TEGRA_DRM_SYNCPT_INCR, tegra_drm_ioctl_syncpt_incr, DRM_UNLOCKED),
    + DRM_IOCTL_DEF_DRV(TEGRA_DRM_SYNCPT_WAIT, tegra_drm_ioctl_syncpt_wait, DRM_UNLOCKED),
    + DRM_IOCTL_DEF_DRV(TEGRA_DRM_OPEN_CHANNEL, tegra_drm_ioctl_open_channel, DRM_UNLOCKED),
    + DRM_IOCTL_DEF_DRV(TEGRA_DRM_CLOSE_CHANNEL, tegra_drm_ioctl_close_channel, DRM_UNLOCKED),
    + DRM_IOCTL_DEF_DRV(TEGRA_DRM_GET_SYNCPOINTS, tegra_drm_ioctl_get_syncpoints, DRM_UNLOCKED),
    + DRM_IOCTL_DEF_DRV(TEGRA_DRM_GET_MODMUTEXES, tegra_drm_ioctl_get_modmutexes, DRM_UNLOCKED),
    + DRM_IOCTL_DEF_DRV(TEGRA_DRM_SUBMIT, tegra_drm_ioctl_submit, DRM_UNLOCKED),
    };

    static const struct file_operations tegra_drm_fops = {
    diff --git a/drivers/gpu/drm/tegra/drm.h b/drivers/gpu/drm/tegra/drm.h
    index 1267a38..db197f6 100644
    --- a/drivers/gpu/drm/tegra/drm.h
    +++ b/drivers/gpu/drm/tegra/drm.h
    @@ -20,6 +20,7 @@
    #include <drm/drm_gem_cma_helper.h>
    #include <drm/drm_fb_cma_helper.h>
    #include <drm/drm_fixed.h>
    +#include <drm/tegra_drm.h>

    struct tegra_framebuffer {
    struct drm_framebuffer base;
    @@ -33,17 +34,44 @@ static inline struct tegra_framebuffer *to_tegra_fb(struct drm_framebuffer *fb)

    struct tegra_drm_client;

    +struct tegra_drm_context {
    + struct tegra_drm_client *client;
    + struct nvhost_channel *channel;
    + struct list_head list;
    +};
    +
    struct tegra_drm_client_ops {
    - int (*drm_init)(struct tegra_drm_client *client,
    - struct drm_device *drm);
    - int (*drm_exit)(struct tegra_drm_client *client);
    + int (*drm_init)(struct tegra_drm_client *, struct drm_device *);
    + int (*drm_exit)(struct tegra_drm_client *);
    + int (*open_channel)(struct tegra_drm_client *,
    + struct tegra_drm_context *);
    + void (*close_channel)(struct tegra_drm_context *);
    + u32 (*get_syncpoints)(struct tegra_drm_context *);
    + u32 (*get_waitbases)(struct tegra_drm_context *);
    + u32 (*get_modmutexes)(struct tegra_drm_context *);
    + int (*submit)(struct tegra_drm_context *,
    + struct tegra_drm_submit_args *);
    +};
    +
    +
    +struct tegra_drm_fpriv {
    + struct list_head contexts;
    };

    +static inline struct tegra_drm_fpriv *
    +tegra_drm_fpriv(struct drm_file *file_priv)
    +{
    + return file_priv ? file_priv->driver_priv : NULL;
    +}
    +
    struct tegra_drm_client {
    struct device *dev;

    const struct tegra_drm_client_ops *ops;

    + u32 class;
    + struct nvhost_channel *channel;
    +
    struct list_head list;

    };
    @@ -116,13 +144,6 @@ struct tegra_output_ops {
    enum drm_mode_status *status);
    };

    -enum tegra_output_type {
    - TEGRA_OUTPUT_RGB,
    - TEGRA_OUTPUT_HDMI,
    - TEGRA_OUTPUT_TVO,
    - TEGRA_OUTPUT_DSI,
    -};
    -
    struct tegra_output {
    struct device_node *of_node;
    struct device *dev;
    @@ -225,6 +246,7 @@ extern struct platform_driver tegra_hdmi_driver;
    extern struct platform_driver tegra_tvo_driver;
    extern struct platform_driver tegra_dsi_driver;
    extern struct platform_driver tegra_dc_driver;
    +extern struct platform_driver tegra_gr2d_driver;
    extern struct drm_driver tegra_drm_driver;

    /* from dmabuf.c */
    diff --git a/drivers/gpu/drm/tegra/gr2d.c b/drivers/gpu/drm/tegra/gr2d.c
    new file mode 100644
    index 0000000..51605af
    --- /dev/null
    +++ b/drivers/gpu/drm/tegra/gr2d.c
    @@ -0,0 +1,224 @@
    +/*
    + * drivers/video/tegra/host/gr2d/gr2d.c
    + *
    + * Tegra Graphics 2D
    + *
    + * Copyright (c) 2012, NVIDIA Corporation.
    + *
    + * This program is free software; you can redistribute it and/or modify it
    + * under the terms and conditions of the GNU General Public License,
    + * version 2, as published by the Free Software Foundation.
    + *
    + * This program is distributed in the hope it will be useful, but WITHOUT
    + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
    + * more details.
    + *
    + * You should have received a copy of the GNU General Public License
    + * along with this program. If not, see <http://www.gnu.org/licenses/>.
    + */
    +
    +#include <linux/export.h>
    +#include <linux/of.h>
    +#include <drm/tegra_drm.h>
    +#include <linux/nvhost.h>
    +#include "drm.h"
    +
    +static struct tegra_drm_client gr2d_client;
    +
    +static int gr2d_client_init(struct tegra_drm_client *client,
    + struct drm_device *drm)
    +{
    + return 0;
    +}
    +
    +static int gr2d_client_exit(struct tegra_drm_client *client)
    +{
    + return 0;
    +}
    +
    +static int gr2d_open_channel(struct tegra_drm_client *client,
    + struct tegra_drm_context *context)
    +{
    + struct nvhost_device_data *pdata = dev_get_drvdata(client->dev);
    + context->channel = nvhost_getchannel(pdata->channel);
    +
    + if (!context->channel)
    + return -ENOMEM;
    +
    + return 0;
    +}
    +
    +static void gr2d_close_channel(struct tegra_drm_context *context)
    +{
    + nvhost_putchannel(context->channel);
    +}
    +
    +static u32 gr2d_get_syncpoints(struct tegra_drm_context *context)
    +{
    + struct nvhost_device_data *pdata =
    + dev_get_drvdata(context->client->dev);
    + return pdata->syncpts;
    +}
    +
    +static u32 gr2d_get_modmutexes(struct tegra_drm_context *context)
    +{
    + struct nvhost_device_data *pdata =
    + dev_get_drvdata(context->client->dev);
    + return pdata->modulemutexes;
    +}
    +
    +static int gr2d_submit(struct tegra_drm_context *context,
    + struct tegra_drm_submit_args *args)
    +{
    + struct nvhost_job *job;
    + int num_cmdbufs = args->num_cmdbufs;
    + int num_relocs = args->num_relocs;
    + int num_waitchks = args->num_waitchks;
    + struct tegra_drm_cmdbuf __user *cmdbufs = args->cmdbufs;
    + struct tegra_drm_reloc __user *relocs = args->relocs;
    + struct tegra_drm_waitchk __user *waitchks = args->waitchks;
    + struct tegra_drm_syncpt_incr syncpt_incr;
    + int err;
    +
    + dev_dbg(context->client->dev, "> %s(context=%p, cmdbufs=%d, relocs=%d, waitchks=%d)\n",
    + __func__, context,
    + num_cmdbufs, num_relocs, num_waitchks);
    +
    + /* We don't yet support other than one syncpt_incr struct per submit */
    + if (args->num_syncpt_incrs != 1)
    + return -EINVAL;
    +
    + job = nvhost_job_alloc(context->channel,
    + args->num_cmdbufs,
    + args->num_relocs,
    + args->num_waitchks);
    + if (!job)
    + return -ENOMEM;
    +
    + job->num_relocs = args->num_relocs;
    + job->num_waitchk = args->num_waitchks;
    + job->clientid = (u32)args->context;
    +
    + while (num_cmdbufs) {
    + struct tegra_drm_cmdbuf cmdbuf;
    + err = copy_from_user(&cmdbuf, cmdbufs, sizeof(cmdbuf));
    + if (err)
    + goto fail;
    + dev_dbg(context->client->dev, "cmdbuf: mem=%08x, words=%d, offset=%d\n",
    + cmdbuf.mem, cmdbuf.words, cmdbuf.offset);
    + nvhost_job_add_gather(job,
    + cmdbuf.mem, cmdbuf.words, cmdbuf.offset);
    + num_cmdbufs--;
    + cmdbufs++;
    + }
    +
    + err = copy_from_user(job->relocarray,
    + relocs, sizeof(*relocs) * num_relocs);
    + if (err)
    + goto fail;
    +
    + err = copy_from_user(job->waitchk,
    + relocs, sizeof(*waitchks) * num_waitchks);
    + if (err)
    + goto fail;
    +
    + err = nvhost_job_pin(job, to_platform_device(context->client->dev));
    + if (err)
    + goto fail;
    +
    + err = copy_from_user(&syncpt_incr,
    + args->syncpt_incrs, sizeof(syncpt_incr));
    + if (err)
    + goto fail;
    +
    + job->syncpt_id = syncpt_incr.syncpt_id;
    + job->syncpt_incrs = syncpt_incr.syncpt_incrs;
    + job->timeout = 10000;
    + if (args->timeout && args->timeout < 10000)
    + job->timeout = args->timeout;
    +
    + err = nvhost_channel_submit(job);
    + if (err)
    + goto fail_submit;
    +
    + args->fence = job->syncpt_end;
    +
    + nvhost_job_put(job);
    + dev_dbg(context->client->dev, "< %s(context=%p)\n", __func__, context);
    + return 0;
    +
    +fail_submit:
    + nvhost_job_unpin(job);
    +fail:
    + nvhost_job_put(job);
    + dev_dbg(context->client->dev,
    + "< %s(context=%p) = %d\n", __func__, context, err);
    + return err;
    +}
    +
    +static struct tegra_drm_client_ops gr2d_client_ops = {
    + .drm_init = gr2d_client_init,
    + .drm_exit = gr2d_client_exit,
    + .open_channel = gr2d_open_channel,
    + .close_channel = gr2d_close_channel,
    + .get_syncpoints = gr2d_get_syncpoints,
    + .get_modmutexes = gr2d_get_modmutexes,
    + .submit = gr2d_submit,
    +};
    +
    +static int __devinit gr2d_probe(struct platform_device *dev)
    +{
    + int err;
    + struct nvhost_device_data *pdata =
    + (struct nvhost_device_data *)dev->dev.platform_data;
    + pdata->pdev = dev;
    + platform_set_drvdata(dev, pdata);
    + err = nvhost_client_device_init(dev);
    + if (err)
    + return err;
    +
    + gr2d_client.ops = &gr2d_client_ops;
    + gr2d_client.dev = &dev->dev;
    + gr2d_client.class = NV_GRAPHICS_2D_CLASS_ID;
    + return tegra_drm_register_client(&gr2d_client);
    +}
    +
    +static int __exit gr2d_remove(struct platform_device *dev)
    +{
    + /* Add clean-up */
    + return 0;
    +}
    +
    +#ifdef CONFIG_PM
    +static int gr2d_suspend(struct platform_device *dev, pm_message_t state)
    +{
    + return nvhost_client_device_suspend(dev);
    +}
    +
    +static int gr2d_resume(struct platform_device *dev)
    +{
    + dev_info(&dev->dev, "resuming\n");
    + return 0;
    +}
    +#endif
    +
    +static struct of_device_id gr2d_match[] __devinitdata = {
    + { .compatible = "nvidia,tegra20-gr2d", },
    + { .compatible = "nvidia,tegra30-gr2d", },
    + { },
    +};
    +
    +struct platform_driver tegra_gr2d_driver = {
    + .probe = gr2d_probe,
    + .remove = __exit_p(gr2d_remove),
    +#ifdef CONFIG_PM
    + .suspend = gr2d_suspend,
    + .resume = gr2d_resume,
    +#endif
    + .driver = {
    + .owner = THIS_MODULE,
    + .name = "tegra-gr2d",
    + .of_match_table = of_match_ptr(gr2d_match),
    + }
    +};
    diff --git a/include/drm/tegra_drm.h b/include/drm/tegra_drm.h
    new file mode 100644
    index 0000000..bfc54d8
    --- /dev/null
    +++ b/include/drm/tegra_drm.h
    @@ -0,0 +1,129 @@
    +/*
    + * Copyright (c) 2012, Avionic Design GmbH
    + * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
    + *
    + * This program is free software; you can redistribute it and/or modify it
    + * under the terms and conditions of the GNU General Public License,
    + * version 2, as published by the Free Software Foundation.
    + *
    + * This program is distributed in the hope it will be useful, but WITHOUT
    + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
    + * more details.
    + *
    + * You should have received a copy of the GNU General Public License
    + * along with this program. If not, see <http://www.gnu.org/licenses/>.
    + */
    +
    +#ifndef _TEGRA_DRM_H_
    +#define _TEGRA_DRM_H_
    +
    +enum tegra_output_type {
    + TEGRA_OUTPUT_RGB,
    + TEGRA_OUTPUT_HDMI,
    + TEGRA_OUTPUT_TVO,
    + TEGRA_OUTPUT_DSI,
    +};
    +
    +struct tegra_gem_create {
    + uint64_t size;
    + unsigned int flags;
    + unsigned int handle;
    +};
    +
    +#define DRM_TEGRA_GEM_CREATE 0x00
    +
    +#define DRM_IOCTL_TEGRA_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + \
    + DRM_TEGRA_GEM_CREATE, struct tegra_gem_create)
    +
    +struct tegra_drm_syncpt_read_args {
    + __u32 id;
    + __u32 value;
    +};
    +
    +struct tegra_drm_syncpt_incr_args {
    + __u32 id;
    +};
    +
    +struct tegra_drm_syncpt_wait_args {
    + __u32 id;
    + __u32 thresh;
    + __s32 timeout;
    + __u32 value;
    +};
    +
    +#define DRM_TEGRA_NO_TIMEOUT (-1)
    +
    +struct tegra_drm_open_channel_args {
    + __u32 class;
    + void *context;
    +};
    +
    +struct tegra_drm_get_channel_param_args {
    + void *context;
    + __u32 value;
    +};
    +
    +struct tegra_drm_syncpt_incr {
    + __u32 syncpt_id;
    + __u32 syncpt_incrs;
    +};
    +
    +struct tegra_drm_cmdbuf {
    + __u32 mem;
    + __u32 offset;
    + __u32 words;
    +};
    +
    +struct tegra_drm_reloc {
    + __u32 cmdbuf_mem;
    + __u32 cmdbuf_offset;
    + __u32 target;
    + __u32 target_offset;
    + __u32 shift;
    +};
    +
    +struct tegra_drm_waitchk {
    + __u32 mem;
    + __u32 offset;
    + __u32 syncpt_id;
    + __u32 thresh;
    +};
    +
    +struct tegra_drm_submit_args {
    + void *context;
    + __u32 num_syncpt_incrs;
    + __u32 num_cmdbufs;
    + __u32 num_relocs;
    + __u32 submit_version;
    + __u32 num_waitchks;
    + __u32 waitchk_mask;
    + __u32 timeout;
    + struct tegra_drm_syncpt_incrs *syncpt_incrs;
    + struct tegra_drm_cmdbuf *cmdbufs;
    + struct tegra_drm_reloc *relocs;
    + struct tegra_drm_waitchk *waitchks;
    +
    + __u32 pad[5]; /* future expansion */
    + __u32 fence; /* Return value */
    +};
    +
    +#define DRM_TEGRA_DRM_SYNCPT_READ 0x01
    +#define DRM_TEGRA_DRM_SYNCPT_INCR 0x02
    +#define DRM_TEGRA_DRM_SYNCPT_WAIT 0x03
    +#define DRM_TEGRA_DRM_OPEN_CHANNEL 0x04
    +#define DRM_TEGRA_DRM_CLOSE_CHANNEL 0x05
    +#define DRM_TEGRA_DRM_GET_SYNCPOINTS 0x06
    +#define DRM_TEGRA_DRM_GET_MODMUTEXES 0x07
    +#define DRM_TEGRA_DRM_SUBMIT 0x08
    +
    +#define DRM_IOCTL_TEGRA_DRM_SYNCPT_READ DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_DRM_SYNCPT_READ, struct tegra_drm_syncpt_read_args)
    +#define DRM_IOCTL_TEGRA_DRM_SYNCPT_INCR DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_DRM_SYNCPT_INCR, struct tegra_drm_syncpt_incr_args)
    +#define DRM_IOCTL_TEGRA_DRM_SYNCPT_WAIT DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_DRM_SYNCPT_WAIT, struct tegra_drm_syncpt_wait_args)
    +#define DRM_IOCTL_TEGRA_DRM_OPEN_CHANNEL DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_DRM_OPEN_CHANNEL, struct tegra_drm_open_channel_args)
    +#define DRM_IOCTL_TEGRA_DRM_CLOSE_CHANNEL DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_DRM_CLOSE_CHANNEL, struct tegra_drm_open_channel_args)
    +#define DRM_IOCTL_TEGRA_DRM_GET_SYNCPOINTS DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_DRM_GET_SYNCPOINTS, struct tegra_drm_get_channel_param_args)
    +#define DRM_IOCTL_TEGRA_DRM_GET_MODMUTEXES DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_DRM_GET_MODMUTEXES, struct tegra_drm_get_channel_param_args)
    +#define DRM_IOCTL_TEGRA_DRM_SUBMIT DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_DRM_SUBMIT, struct tegra_drm_submit_args)
    +
    +#endif
    --
    1.7.9.5


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      Last update: 2012-11-26 15:01    [W:6.818 / U:0.236 seconds]
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