Add client driver for 2D device, and IOCTLs to pass work to host1x channel for 2D.
Also adds functions that can be called to access sync points from DRM.
Signed-off-by: Terje Bergstrom tbergstrom@nvidia.com --- drivers/gpu/host1x/Makefile | 1 + drivers/gpu/host1x/dev.c | 7 + drivers/gpu/host1x/drm/drm.c | 226 +++++++++++++++++++++++++++- drivers/gpu/host1x/drm/drm.h | 28 ++++ drivers/gpu/host1x/drm/gr2d.c | 325 +++++++++++++++++++++++++++++++++++++++++ drivers/gpu/host1x/syncpt.c | 5 + drivers/gpu/host1x/syncpt.h | 3 + include/drm/tegra_drm.h | 131 +++++++++++++++++ 8 files changed, 725 insertions(+), 1 deletion(-) create mode 100644 drivers/gpu/host1x/drm/gr2d.c create mode 100644 include/drm/tegra_drm.h
diff --git a/drivers/gpu/host1x/Makefile b/drivers/gpu/host1x/Makefile index c35ee19..c2120ad 100644 --- a/drivers/gpu/host1x/Makefile +++ b/drivers/gpu/host1x/Makefile @@ -18,4 +18,5 @@ ccflags-$(CONFIG_DRM_TEGRA_DEBUG) += -DDEBUG
host1x-$(CONFIG_DRM_TEGRA) += drm/drm.o drm/fb.o drm/dc.o host1x-$(CONFIG_DRM_TEGRA) += drm/output.o drm/rgb.o drm/hdmi.o +host1x-$(CONFIG_DRM_TEGRA) += drm/gr2d.o obj-$(CONFIG_TEGRA_HOST1X) += host1x.o diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c index 17ee01c..40d9938 100644 --- a/drivers/gpu/host1x/dev.c +++ b/drivers/gpu/host1x/dev.c @@ -214,11 +214,17 @@ static int __init tegra_host1x_init(void) err = platform_driver_register(&tegra_hdmi_driver); if (err < 0) goto unregister_dc; + + err = platform_driver_register(&tegra_gr2d_driver); + if (err < 0) + goto unregister_hdmi; #endif
return 0;
#ifdef CONFIG_TEGRA_DRM +unregister_hdmi: + platform_driver_unregister(&tegra_hdmi_driver); unregister_dc: platform_driver_unregister(&tegra_dc_driver); unregister_host1x: @@ -231,6 +237,7 @@ module_init(tegra_host1x_init); static void __exit tegra_host1x_exit(void) { #ifdef CONFIG_TEGRA_DRM + platform_driver_unregister(&tegra_gr2d_driver); platform_driver_unregister(&tegra_hdmi_driver); platform_driver_unregister(&tegra_dc_driver); #endif diff --git a/drivers/gpu/host1x/drm/drm.c b/drivers/gpu/host1x/drm/drm.c index bef9051..f8f8508 100644 --- a/drivers/gpu/host1x/drm/drm.c +++ b/drivers/gpu/host1x/drm/drm.c @@ -14,9 +14,11 @@ #include <mach/clk.h> #include <linux/dma-mapping.h> #include <asm/dma-iommu.h> +#include <drm/tegra_drm.h>
#include "drm.h" #include "host1x_client.h" +#include "syncpt.h"
#define DRIVER_NAME "tegra" #define DRIVER_DESC "NVIDIA Tegra graphics" @@ -78,8 +80,10 @@ static int host1x_parse_dt(struct host1x *host1x) static const char * const compat[] = { "nvidia,tegra20-dc", "nvidia,tegra20-hdmi", + "nvidia,tegra20-gr2d", "nvidia,tegra30-dc", "nvidia,tegra30-hdmi", + "nvidia,tegra30-gr2d", }; unsigned int i; int err; @@ -270,7 +274,29 @@ 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 host1x_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_close(struct drm_device *drm, struct drm_file *filp) +{ + struct host1x_drm_fpriv *fpriv = host1x_drm_fpriv(filp); + struct host1x_drm_context *context, *tmp; + + list_for_each_entry_safe(context, tmp, &fpriv->contexts, list) { + context->client->ops->close_channel(context); + kfree(context); + } + kfree(fpriv); }
static void tegra_drm_lastclose(struct drm_device *drm) @@ -280,7 +306,204 @@ static void tegra_drm_lastclose(struct drm_device *drm) drm_fbdev_cma_restore_mode(host1x->fbdev); }
+static int +tegra_drm_ioctl_syncpt_read(struct drm_device *drm, void *data, + struct drm_file *file_priv) +{ + struct host1x *host1x = drm->dev_private; + struct tegra_drm_syncpt_read_args *args = data; + struct host1x_syncpt *sp = + host1x_syncpt_get_bydev(host1x->dev, args->id); + + if (!sp) + return -EINVAL; + + args->value = host1x_syncpt_read_min(sp); + return 0; +} + +static int +tegra_drm_ioctl_syncpt_incr(struct drm_device *drm, void *data, + struct drm_file *file_priv) +{ + struct host1x *host1x = drm->dev_private; + struct tegra_drm_syncpt_incr_args *args = data; + struct host1x_syncpt *sp = + host1x_syncpt_get_bydev(host1x->dev, args->id); + + if (!sp) + return -EINVAL; + + host1x_syncpt_incr(sp); + return 0; +} + +static int +tegra_drm_ioctl_syncpt_wait(struct drm_device *drm, void *data, + struct drm_file *file_priv) +{ + struct host1x *host1x = drm->dev_private; + struct tegra_drm_syncpt_wait_args *args = data; + struct host1x_syncpt *sp = + host1x_syncpt_get_bydev(host1x->dev, args->id); + + if (!sp) + return -EINVAL; + + return host1x_syncpt_wait(sp, args->thresh, + args->timeout, &args->value); +} + +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 host1x_client *client; + struct host1x_drm_context *context; + struct host1x_drm_fpriv *fpriv = host1x_drm_fpriv(file_priv); + struct host1x *host1x = drm->dev_private; + int err = 0; + + context = kzalloc(sizeof(*context), GFP_KERNEL); + if (!context) + return -ENOMEM; + + list_for_each_entry(client, &host1x->clients, list) { + if (client->class == args->class) { + context->client = client; + err = client->ops->open_channel(client, context); + if (err) + goto out; + + list_add(&context->list, &fpriv->contexts); + args->context = (uintptr_t)context; + goto out; + } + } + err = -ENODEV; + +out: + if (err) + kfree(context); + + 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 host1x_drm_context *context, *tmp; + struct host1x_drm_fpriv *fpriv = host1x_drm_fpriv(file_priv); + int err = 0; + + list_for_each_entry_safe(context, tmp, &fpriv->contexts, list) { + if ((uintptr_t)context == args->context) { + context->client->ops->close_channel(context); + list_del(&context->list); + kfree(context); + goto out; + } + } + err = -EINVAL; + +out: + return err; +} + +static int +tegra_drm_ioctl_get_syncpoint(struct drm_device *drm, void *data, + struct drm_file *file_priv) +{ + struct tegra_drm_get_channel_param_args *args = data; + struct host1x_drm_context *context; + struct host1x_drm_fpriv *fpriv = host1x_drm_fpriv(file_priv); + int err = 0; + + list_for_each_entry(context, &fpriv->contexts, list) { + if ((uintptr_t)context == args->context) { + args->value = + context->client->ops->get_syncpoint(context, + args->param); + 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 host1x_drm_context *context; + struct host1x_drm_fpriv *fpriv = host1x_drm_fpriv(file_priv); + int err = 0; + + list_for_each_entry(context, &fpriv->contexts, list) { + if ((uintptr_t)context == args->context) { + err = context->client->ops->submit(context, args, drm, + file_priv); + 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; + + args->offset = cma_obj->base.map_list.hash.key << PAGE_SHIFT; + + 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_SYNCPOINT, + tegra_drm_ioctl_get_syncpoint, DRM_UNLOCKED), + DRM_IOCTL_DEF_DRV(TEGRA_DRM_SUBMIT, + tegra_drm_ioctl_submit, DRM_UNLOCKED), };
static const struct file_operations tegra_drm_fops = { @@ -303,6 +526,7 @@ struct drm_driver tegra_drm_driver = { .load = tegra_drm_load, .unload = tegra_drm_unload, .open = tegra_drm_open, + .preclose = tegra_drm_close, .lastclose = tegra_drm_lastclose,
.gem_free_object = drm_gem_cma_free_object, diff --git a/drivers/gpu/host1x/drm/drm.h b/drivers/gpu/host1x/drm/drm.h index e7101d5..dc4c128 100644 --- a/drivers/gpu/host1x/drm/drm.h +++ b/drivers/gpu/host1x/drm/drm.h @@ -17,6 +17,7 @@ #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; @@ -49,17 +50,44 @@ struct host1x {
struct host1x_client;
+struct host1x_drm_context { + struct host1x_client *client; + struct host1x_channel *channel; + struct list_head list; +}; + struct host1x_client_ops { int (*drm_init)(struct host1x_client *client, struct drm_device *drm); int (*drm_exit)(struct host1x_client *client); + int (*open_channel)(struct host1x_client *, + struct host1x_drm_context *); + void (*close_channel)(struct host1x_drm_context *); + u32 (*get_syncpoint)(struct host1x_drm_context *, int index); + int (*submit)(struct host1x_drm_context *, + struct tegra_drm_submit_args *, + struct drm_device *, + struct drm_file *); +}; + +struct host1x_drm_fpriv { + struct list_head contexts; };
+static inline struct host1x_drm_fpriv * +host1x_drm_fpriv(struct drm_file *file_priv) +{ + return file_priv ? file_priv->driver_priv : NULL; +} + struct host1x_client { struct host1x *host1x; struct device *dev;
const struct host1x_client_ops *ops;
+ u32 class; + struct host1x_channel *channel; + struct list_head list; };
diff --git a/drivers/gpu/host1x/drm/gr2d.c b/drivers/gpu/host1x/drm/gr2d.c new file mode 100644 index 0000000..dc7d6c6 --- /dev/null +++ b/drivers/gpu/host1x/drm/gr2d.c @@ -0,0 +1,325 @@ +/* + * 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 <linux/of_device.h> +#include <linux/clk.h> +#include <drm/tegra_drm.h> +#include "drm.h" +#include "job.h" +#include "channel.h" +#include "host1x.h" +#include "syncpt.h" +#include "memmgr.h" +#include "host1x_client.h" + +struct gr2d { + struct host1x_client client; + struct clk *clk; + struct host1x_syncpt *syncpt; + struct host1x_channel *channel; +}; + +static int gr2d_is_addr_reg(struct platform_device *dev, u32 class, u32 reg); + +static int gr2d_client_init(struct host1x_client *client, + struct drm_device *drm) +{ + return 0; +} + +static int gr2d_client_exit(struct host1x_client *client) +{ + return 0; +} + +static int gr2d_open_channel(struct host1x_client *client, + struct host1x_drm_context *context) +{ + struct gr2d *gr2d = dev_get_drvdata(client->dev); + context->channel = host1x_channel_get(gr2d->channel); + + if (!context->channel) + return -ENOMEM; + + return 0; +} + +static void gr2d_close_channel(struct host1x_drm_context *context) +{ + host1x_channel_put(context->channel); +} + +static u32 gr2d_get_syncpoint(struct host1x_drm_context *context, int index) +{ + struct gr2d *gr2d = dev_get_drvdata(context->client->dev); + if (index != 0) + return UINT_MAX; + + return host1x_syncpt_id(gr2d->syncpt); +} + +static u32 handle_cma_to_host1x(struct drm_device *drm, + struct drm_file *file_priv, u32 gem_handle) +{ + struct drm_gem_object *obj; + struct drm_gem_cma_object *cma_obj; + u32 host1x_handle; + + obj = drm_gem_object_lookup(drm, file_priv, gem_handle); + if (!obj) + return 0; + + cma_obj = to_drm_gem_cma_obj(obj); + host1x_handle = host1x_memmgr_host1x_id(mem_mgr_type_cma, (u32)cma_obj); + drm_gem_object_unreference(obj); + + return host1x_handle; +} + +static int gr2d_submit(struct host1x_drm_context *context, + struct tegra_drm_submit_args *args, + struct drm_device *drm, + struct drm_file *file_priv) +{ + struct host1x_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 = + (void * __user)(uintptr_t)args->cmdbufs; + struct tegra_drm_reloc __user *relocs = + (void * __user)(uintptr_t)args->relocs; + struct tegra_drm_waitchk __user *waitchks = + (void * __user)(uintptr_t)args->waitchks; + struct tegra_drm_syncpt_incr syncpt_incr; + int err; + + /* We don't yet support other than one syncpt_incr struct per submit */ + if (args->num_syncpt_incrs != 1) + return -EINVAL; + + job = host1x_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; + job->class = context->client->class; + job->serialize = true; + + while (num_cmdbufs) { + struct tegra_drm_cmdbuf cmdbuf; + err = copy_from_user(&cmdbuf, cmdbufs, sizeof(cmdbuf)); + if (err) + goto fail; + + cmdbuf.mem = handle_cma_to_host1x(drm, file_priv, cmdbuf.mem); + if (!cmdbuf.mem) + goto fail; + + host1x_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; + + while (num_relocs--) { + job->relocarray[num_relocs].cmdbuf_mem = + handle_cma_to_host1x(drm, file_priv, + job->relocarray[num_relocs].cmdbuf_mem); + job->relocarray[num_relocs].target = + handle_cma_to_host1x(drm, file_priv, + job->relocarray[num_relocs].target); + + if (!job->relocarray[num_relocs].target || + !job->relocarray[num_relocs].cmdbuf_mem) + goto fail; + } + + err = copy_from_user(job->waitchk, + waitchks, sizeof(*waitchks) * num_waitchks); + if (err) + goto fail; + + err = host1x_job_pin(job, to_platform_device(context->client->dev)); + if (err) + goto fail; + + err = copy_from_user(&syncpt_incr, + (void * __user)(uintptr_t)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; + job->is_addr_reg = gr2d_is_addr_reg; + if (args->timeout && args->timeout < 10000) + job->timeout = args->timeout; + + err = host1x_channel_submit(job); + if (err) + goto fail_submit; + + args->fence = job->syncpt_end; + + host1x_job_put(job); + return 0; + +fail_submit: + host1x_job_unpin(job); +fail: + host1x_job_put(job); + return err; +} + +static struct host1x_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_syncpoint = gr2d_get_syncpoint, + .submit = gr2d_submit, +}; + +static int gr2d_is_addr_reg(struct platform_device *dev, u32 class, u32 reg) +{ + int ret; + + if (class == NV_HOST1X_CLASS_ID) + ret = reg == 0x2b; + else + switch (reg) { + case 0x1a: + case 0x1b: + case 0x26: + case 0x2b: + case 0x2c: + case 0x2d: + case 0x31: + case 0x32: + case 0x48: + case 0x49: + case 0x4a: + case 0x4b: + case 0x4c: + ret = 1; + break; + default: + ret = 0; + break; + } + + return ret; +} + +static struct of_device_id gr2d_match[] = { + { .compatible = "nvidia,tegra30-gr2d" }, + { .compatible = "nvidia,tegra20-gr2d" }, + { }, +}; + +static int gr2d_probe(struct platform_device *dev) +{ + struct host1x *host1x = + host1x_get_drm_data(to_platform_device(dev->dev.parent)); + int err; + struct gr2d *gr2d = NULL; + + gr2d = devm_kzalloc(&dev->dev, sizeof(*gr2d), GFP_KERNEL); + if (!gr2d) + return -ENOMEM; + + gr2d->clk = devm_clk_get(&dev->dev, "gr2d"); + if (IS_ERR(gr2d->clk)) { + dev_err(&dev->dev, "cannot get clock\n"); + return PTR_ERR(gr2d->clk); + } + + err = clk_prepare_enable(gr2d->clk); + if (err) { + dev_err(&dev->dev, "cannot turn on clock\n"); + return err; + } + + gr2d->channel = host1x_channel_alloc(dev); + if (!gr2d->channel) + return -ENOMEM; + + gr2d->syncpt = host1x_syncpt_alloc(dev, 0); + if (!gr2d->syncpt) { + host1x_channel_free(gr2d->channel); + return -ENOMEM; + } + + gr2d->client.ops = &gr2d_client_ops; + gr2d->client.dev = &dev->dev; + gr2d->client.class = NV_GRAPHICS_2D_CLASS_ID; + + err = host1x_register_client(host1x, &gr2d->client); + if (err < 0) { + dev_err(&dev->dev, "failed to register host1x client: %d\n", + err); + return err; + } + + platform_set_drvdata(dev, gr2d); + return 0; +} + +static int __exit gr2d_remove(struct platform_device *dev) +{ + struct host1x *host1x = + host1x_get_drm_data(to_platform_device(dev->dev.parent)); + struct gr2d *gr2d = platform_get_drvdata(dev); + int err; + + err = host1x_unregister_client(host1x, &gr2d->client); + if (err < 0) { + dev_err(&dev->dev, "failed to unregister host1x client: %d\n", + err); + return err; + } + + host1x_syncpt_free(gr2d->syncpt); + return 0; +} + +struct platform_driver tegra_gr2d_driver = { + .probe = gr2d_probe, + .remove = __exit_p(gr2d_remove), + .driver = { + .owner = THIS_MODULE, + .name = "gr2d", + .of_match_table = gr2d_match, + } +}; diff --git a/drivers/gpu/host1x/syncpt.c b/drivers/gpu/host1x/syncpt.c index 191f65f..ccaaece 100644 --- a/drivers/gpu/host1x/syncpt.c +++ b/drivers/gpu/host1x/syncpt.c @@ -392,3 +392,8 @@ struct host1x_syncpt *host1x_syncpt_get(struct host1x *dev, u32 id) { return dev->syncpt + id; } + +struct host1x_syncpt *host1x_syncpt_get_bydev(struct device *dev, u32 id) +{ + return host1x_syncpt_get(dev_get_drvdata(dev), id); +} diff --git a/drivers/gpu/host1x/syncpt.h b/drivers/gpu/host1x/syncpt.h index 255a3a3..d15d4c5 100644 --- a/drivers/gpu/host1x/syncpt.h +++ b/drivers/gpu/host1x/syncpt.h @@ -110,6 +110,9 @@ static inline bool host1x_syncpt_min_eq_max(struct host1x_syncpt *sp) /* Return pointer to struct denoting sync point id. */ struct host1x_syncpt *host1x_syncpt_get(struct host1x *dev, u32 id);
+/* Return pointer to struct denoting sync point id, when given client pdev. */ +struct host1x_syncpt *host1x_syncpt_get_bydev(struct device *dev, u32 id); + /* Request incrementing a sync point. */ void host1x_syncpt_cpu_incr(struct host1x_syncpt *sp);
diff --git a/include/drm/tegra_drm.h b/include/drm/tegra_drm.h new file mode 100644 index 0000000..11fb019 --- /dev/null +++ b/include/drm/tegra_drm.h @@ -0,0 +1,131 @@ +/* + * 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_ + +struct tegra_gem_create { + __u64 size; + unsigned int flags; + unsigned int handle; + unsigned int offset; +}; + +struct tegra_gem_invalidate { + unsigned int handle; +}; + +struct tegra_gem_flush { + unsigned int handle; +}; + +struct tegra_drm_syncpt_read_args { + __u32 id; + __u32 value; +}; + +struct tegra_drm_syncpt_incr_args { + __u32 id; + __u32 pad; +}; + +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; + __u32 pad; + __u64 context; +}; + +struct tegra_drm_get_channel_param_args { + __u64 context; + __u32 param; + __u32 value; +}; + +struct tegra_drm_syncpt_incr { + __u32 syncpt_id; + __u32 syncpt_incrs; +}; + +struct tegra_drm_cmdbuf { + __u32 mem; + __u32 offset; + __u32 words; + __u32 pad; +}; + +struct tegra_drm_reloc { + __u32 cmdbuf_mem; + __u32 cmdbuf_offset; + __u32 target; + __u32 target_offset; + __u32 shift; + __u32 pad; +}; + +struct tegra_drm_waitchk { + __u32 mem; + __u32 offset; + __u32 syncpt_id; + __u32 thresh; +}; + +struct tegra_drm_submit_args { + __u64 context; + __u32 num_syncpt_incrs; + __u32 num_cmdbufs; + __u32 num_relocs; + __u32 submit_version; + __u32 num_waitchks; + __u32 waitchk_mask; + __u32 timeout; + __u32 pad; + __u64 syncpt_incrs; + __u64 cmdbufs; + __u64 relocs; + __u64 waitchks; + __u32 fence; /* Return value */ + + __u32 reserved[5]; /* future expansion */ +}; + +#define DRM_TEGRA_GEM_CREATE 0x00 +#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_SYNCPOINT 0x06 +#define DRM_TEGRA_DRM_SUBMIT 0x08 + +#define DRM_IOCTL_TEGRA_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GEM_CREATE, struct tegra_gem_create) +#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_SYNCPOINT DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_DRM_GET_SYNCPOINT, 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