[PATCH 05/10] drm: xlnx: Xilinx DRM KMS driver
Daniel Vetter
daniel at ffwll.ch
Tue Jan 9 09:51:00 UTC 2018
On Thu, Jan 04, 2018 at 06:05:54PM -0800, Hyun Kwon wrote:
> Xilinx has various platforms for display, where users can create
> using multiple IPs in the programmable FPGA fabric, or where
> some hardened piepline is available on the chip. Furthermore,
> hardened pipeline can also interact with soft logics in FPGA.
>
> The Xilinx DRM KMS is a softwrae layer to glue subdevice drivers
> with DRM core and integrate multiple subdevice drivers together.
>
> Signed-off-by: Hyun Kwon <hyun.kwon at xilinx.com>
> ---
> MAINTAINERS | 8 +
> drivers/gpu/drm/Kconfig | 2 +
> drivers/gpu/drm/Makefile | 1 +
> drivers/gpu/drm/xlnx/Kconfig | 12 ++
> drivers/gpu/drm/xlnx/Makefile | 2 +
> drivers/gpu/drm/xlnx/xlnx_crtc.c | 1 +
> drivers/gpu/drm/xlnx/xlnx_drv.c | 436 +++++++++++++++++++++++++++++++++++++++
> drivers/gpu/drm/xlnx/xlnx_drv.h | 22 ++
> drivers/gpu/drm/xlnx/xlnx_fb.c | 1 +
> drivers/gpu/drm/xlnx/xlnx_gem.c | 1 +
> 10 files changed, 486 insertions(+)
> create mode 100644 drivers/gpu/drm/xlnx/Kconfig
> create mode 100644 drivers/gpu/drm/xlnx/Makefile
> create mode 100644 drivers/gpu/drm/xlnx/xlnx_drv.c
> create mode 100644 drivers/gpu/drm/xlnx/xlnx_drv.h
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index d4b1635..101a3e6 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -4785,6 +4785,14 @@ F: drivers/gpu/drm/etnaviv/
> F: include/uapi/drm/etnaviv_drm.h
> F: Documentation/devicetree/bindings/display/etnaviv/
>
> +DRM DRIVERS FOR XILINX
> +M: Hyun Kwon <hyun.kwon at xilinx.com>
> +L: dri-devel at lists.freedesktop.org
> +S: Maintained
> +F: drivers/gpu/drm/xlnx/
> +F: Documentation/devicetree/bindings/display/xlnx/
> +T: git git://anongit.freedesktop.org/drm/drm-misc
> +
> DRM DRIVERS FOR ZTE ZX
> M: Shawn Guo <shawnguo at kernel.org>
> L: dri-devel at lists.freedesktop.org
> diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
> index 0bc3744..82b7fc3 100644
> --- a/drivers/gpu/drm/Kconfig
> +++ b/drivers/gpu/drm/Kconfig
> @@ -293,6 +293,8 @@ source "drivers/gpu/drm/pl111/Kconfig"
>
> source "drivers/gpu/drm/tve200/Kconfig"
>
> +source "drivers/gpu/drm/xlnx/Kconfig"
> +
> # Keep legacy drivers last
>
> menuconfig DRM_LEGACY
> diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
> index dd5ae67..72ee1a1 100644
> --- a/drivers/gpu/drm/Makefile
> +++ b/drivers/gpu/drm/Makefile
> @@ -103,3 +103,4 @@ obj-$(CONFIG_DRM_TINYDRM) += tinydrm/
> obj-$(CONFIG_DRM_PL111) += pl111/
> obj-$(CONFIG_DRM_TVE200) += tve200/
> obj-$(CONFIG_DRM_SCHED) += scheduler/
> +obj-$(CONFIG_DRM_XLNX) += xlnx/
> diff --git a/drivers/gpu/drm/xlnx/Kconfig b/drivers/gpu/drm/xlnx/Kconfig
> new file mode 100644
> index 0000000..19fd7cd
> --- /dev/null
> +++ b/drivers/gpu/drm/xlnx/Kconfig
> @@ -0,0 +1,12 @@
> +config DRM_XLNX
> + tristate "Xilinx DRM KMS Driver"
> + depends on DRM && OF
> + select DRM_KMS_HELPER
> + select DRM_KMS_CMA_HELPER
> + select DRM_GEM_CMA_HELPER
> + help
> + Xilinx DRM KMS driver. Choose this option if you have
> + a Xilinx SoCs with hardened display pipeline or soft
> + display pipeline using Xilinx IPs in FPGA. This module
> + provides the kernel mode setting functionalities
> + for Xilinx display drivers.
> diff --git a/drivers/gpu/drm/xlnx/Makefile b/drivers/gpu/drm/xlnx/Makefile
> new file mode 100644
> index 0000000..c60a281
> --- /dev/null
> +++ b/drivers/gpu/drm/xlnx/Makefile
> @@ -0,0 +1,2 @@
> +xlnx_drm-objs += xlnx_crtc.o xlnx_drv.o xlnx_fb.o xlnx_gem.o
> +obj-$(CONFIG_DRM_XLNX) += xlnx_drm.o
> diff --git a/drivers/gpu/drm/xlnx/xlnx_crtc.c b/drivers/gpu/drm/xlnx/xlnx_crtc.c
> index 57ee939..8387e1e 100644
> --- a/drivers/gpu/drm/xlnx/xlnx_crtc.c
> +++ b/drivers/gpu/drm/xlnx/xlnx_crtc.c
> @@ -13,6 +13,7 @@
> #include <linux/list.h>
>
> #include "xlnx_crtc.h"
> +#include "xlnx_drv.h"
>
> /*
> * Overview
> diff --git a/drivers/gpu/drm/xlnx/xlnx_drv.c b/drivers/gpu/drm/xlnx/xlnx_drv.c
> new file mode 100644
> index 0000000..273420b
> --- /dev/null
> +++ b/drivers/gpu/drm/xlnx/xlnx_drv.c
> @@ -0,0 +1,436 @@
> +/*
> + * Xilinx DRM KMS Driver
> + *
> + * Copyright (C) 2013 - 2018 Xilinx, Inc.
> + *
> + * Author: Hyun Woo Kwon <hyun.kwon at xilinx.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0
> + */
> +
> +#include <drm/drmP.h>
> +#include <drm/drm_atomic.h>
> +#include <drm/drm_atomic_helper.h>
> +#include <drm/drm_crtc_helper.h>
> +#include <drm/drm_gem_cma_helper.h>
> +#include <drm/drm_of.h>
> +
> +#include <linux/component.h>
> +#include <linux/device.h>
> +#include <linux/dma-buf.h>
> +#include <linux/module.h>
> +#include <linux/of_graph.h>
> +#include <linux/platform_device.h>
> +#include <linux/reservation.h>
> +
> +#include "xlnx_crtc.h"
> +#include "xlnx_fb.h"
> +#include "xlnx_gem.h"
> +
> +#define DRIVER_NAME "xlnx"
> +#define DRIVER_DESC "Xilinx DRM KMS Driver"
> +#define DRIVER_DATE "20130509"
> +#define DRIVER_MAJOR 1
> +#define DRIVER_MINOR 0
> +
> +static uint xlnx_fbdev_vres = 2;
> +module_param_named(fbdev_vres, xlnx_fbdev_vres, uint, 0444);
> +MODULE_PARM_DESC(fbdev_vres,
> + "fbdev virtual resolution multiplier for fb (default: 2)");
> +
> +/**
> + * struct xlnx_drm - Xilinx DRM private data
> + * @drm: DRM core
> + * @crtc: Xilinx DRM CRTC helper
> + * @fb: DRM fb helper
> + * @pdev: platform device
> + * @suspend_state: atomic state for suspend / resume
> + */
> +struct xlnx_drm {
> + struct drm_device *drm;
> + struct xlnx_crtc_helper *crtc;
> + struct drm_fb_helper *fb;
> + struct platform_device *pdev;
> + struct drm_atomic_state *suspend_state;
> +};
> +
> +/**
> + * xlnx_get_crtc_helper - Return the crtc helper instance
> + * @drm: DRM device
> + *
> + * Return: the crtc helper instance
> + */
> +struct xlnx_crtc_helper *xlnx_get_crtc_helper(struct drm_device *drm)
> +{
> + struct xlnx_drm *xlnx_drm = drm->dev_private;
> +
> + return xlnx_drm->crtc;
> +}
> +
> +/**
> + * xlnx_get_align - Return the align requirement through CRTC helper
> + * @drm: DRM device
> + *
> + * Return: the alignment requirement
> + */
> +unsigned int xlnx_get_align(struct drm_device *drm)
> +{
> + struct xlnx_drm *xlnx_drm = drm->dev_private;
> +
> + return xlnx_crtc_helper_get_align(xlnx_drm->crtc);
> +}
> +
> +/**
> + * xlnx_get_format - Return the current format of CRTC
> + * @drm: DRM device
> + *
> + * Return: the current CRTC format
> + */
> +uint32_t xlnx_get_format(struct drm_device *drm)
> +{
> + struct xlnx_drm *xlnx_drm = drm->dev_private;
> +
> + return xlnx_crtc_helper_get_format(xlnx_drm->crtc);
> +}
> +
> +static void xlnx_output_poll_changed(struct drm_device *drm)
> +{
> + struct xlnx_drm *xlnx_drm = drm->dev_private;
> +
> + xlnx_fb_hotplug_event(xlnx_drm->fb);
> +}
> +
> +static const struct drm_mode_config_funcs xlnx_mode_config_funcs = {
> + .fb_create = xlnx_fb_create,
> + .output_poll_changed = xlnx_output_poll_changed,
> + .atomic_check = drm_atomic_helper_check,
> + .atomic_commit = drm_atomic_helper_commit,
> +};
> +
> +static struct drm_mode_config_helper_funcs xlnx_mode_config_helper_funcs = {
> + .atomic_commit_tail = drm_atomic_helper_commit_tail,
Hm, I thought this was optional and it should be the default commit_tail
callback. Please remove (and if that doesn't work, pls type a core patch
to make it the default).
> +};
> +
> +static int xlnx_enable_vblank(struct drm_device *drm, unsigned int crtc)
> +{
> + struct xlnx_drm *xlnx_drm = drm->dev_private;
> +
> + return xlnx_crtc_helper_enable_vblank(xlnx_drm->crtc, crtc);
> +}
> +
> +static void xlnx_disable_vblank(struct drm_device *drm, unsigned int crtc)
> +{
> + struct xlnx_drm *xlnx_drm = drm->dev_private;
> +
> + xlnx_crtc_helper_disable_vblank(xlnx_drm->crtc, crtc);
> +}
This is a bit backwards since you introduce the crtc helper only in a
later patch. Good reason to move the vblank stuff in there, and maybe even
fold the crtc helpers into the main kms patch :-)
-Daniel
> +
> +static void xlnx_mode_config_init(struct drm_device *drm)
> +{
> + struct xlnx_drm *xlnx_drm = drm->dev_private;
> + struct xlnx_crtc_helper *crtc = xlnx_drm->crtc;
> +
> + drm->mode_config.min_width = 0;
> + drm->mode_config.min_height = 0;
> + drm->mode_config.max_width = xlnx_crtc_helper_get_max_width(crtc);
> + drm->mode_config.max_height = xlnx_crtc_helper_get_max_height(crtc);
> +}
> +
> +static void xlnx_lastclose(struct drm_device *drm)
> +{
> + struct xlnx_drm *xlnx_drm = drm->dev_private;
> +
> + xlnx_fb_restore_mode(xlnx_drm->fb);
> +}
> +
> +static const struct file_operations xlnx_fops = {
> + .owner = THIS_MODULE,
> + .open = drm_open,
> + .release = drm_release,
> + .unlocked_ioctl = drm_ioctl,
> + .mmap = drm_gem_cma_mmap,
> + .poll = drm_poll,
> + .read = drm_read,
> +#ifdef CONFIG_COMPAT
> + .compat_ioctl = drm_compat_ioctl,
> +#endif
> + .llseek = noop_llseek,
> +};
> +
> +static struct drm_driver xlnx_drm_driver = {
> + .driver_features = DRIVER_MODESET | DRIVER_GEM |
> + DRIVER_ATOMIC | DRIVER_PRIME,
> + .lastclose = xlnx_lastclose,
> +
> + .enable_vblank = xlnx_enable_vblank,
> + .disable_vblank = xlnx_disable_vblank,
Please use the new callbacks in drm_crtc_ops instead, these here are
deprecated.
> +
> + .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> + .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> + .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_import = drm_gem_prime_import,
> + .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
> + .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
> + .gem_prime_vmap = drm_gem_cma_prime_vmap,
> + .gem_prime_vunmap = drm_gem_cma_prime_vunmap,
> + .gem_prime_mmap = drm_gem_cma_prime_mmap,
> + .gem_free_object = drm_gem_cma_free_object,
> + .gem_vm_ops = &drm_gem_cma_vm_ops,
> + .dumb_create = xlnx_gem_cma_dumb_create,
> + .dumb_destroy = drm_gem_dumb_destroy,
> +
> + .fops = &xlnx_fops,
> +
> + .name = DRIVER_NAME,
> + .desc = DRIVER_DESC,
> + .date = DRIVER_DATE,
> + .major = DRIVER_MAJOR,
> + .minor = DRIVER_MINOR,
> +};
> +
> +static int xlnx_bind(struct device *dev)
> +{
> + struct xlnx_drm *xlnx_drm;
> + struct drm_device *drm;
> + const struct drm_format_info *info;
> + struct platform_device *pdev = to_platform_device(dev);
> + int ret;
> + u32 format;
> +
> + drm = drm_dev_alloc(&xlnx_drm_driver, &pdev->dev);
> + if (IS_ERR(drm))
> + return PTR_ERR(drm);
> +
> + xlnx_drm = devm_kzalloc(drm->dev, sizeof(*xlnx_drm), GFP_KERNEL);
> + if (!xlnx_drm) {
> + ret = -ENOMEM;
> + goto err_drm;
> + }
> +
> + drm_mode_config_init(drm);
> + drm->mode_config.funcs = &xlnx_mode_config_funcs;
> + drm->mode_config.helper_private = &xlnx_mode_config_helper_funcs;
> +
> + ret = drm_vblank_init(drm, 1);
> + if (ret) {
> + dev_err(&pdev->dev, "failed to initialize vblank\n");
> + goto err_xlnx_drm;
> + }
> +
> + drm->irq_enabled = 1;
> + drm->dev_private = xlnx_drm;
> + xlnx_drm->drm = drm;
> + drm_kms_helper_poll_init(drm);
> + platform_set_drvdata(pdev, xlnx_drm);
> +
> + xlnx_drm->crtc = xlnx_crtc_helper_init(drm);
> + if (IS_ERR(xlnx_drm->crtc)) {
> + ret = PTR_ERR(xlnx_drm->crtc);
> + goto err_xlnx_drm;
> + }
> +
> + ret = component_bind_all(drm->dev, drm);
> + if (ret)
> + goto err_crtc;
> +
> + xlnx_mode_config_init(drm);
> + drm_mode_config_reset(drm);
> + dma_set_mask(drm->dev, xlnx_crtc_helper_get_dma_mask(xlnx_drm->crtc));
> +
> + format = xlnx_crtc_helper_get_format(xlnx_drm->crtc);
> + info = drm_format_info(format);
> + if (info && info->depth && info->cpp[0]) {
> + unsigned int align;
> +
> + align = xlnx_crtc_helper_get_align(xlnx_drm->crtc);
> + xlnx_drm->fb = xlnx_fb_init(drm, info->cpp[0] * 8, 1, align,
> + xlnx_fbdev_vres);
> + if (IS_ERR(xlnx_drm->fb))
> + dev_err(&pdev->dev,
> + "failed to initialize drm fb\n");
> + } else {
> + /* fbdev emulation is optional */
> + dev_info(&pdev->dev, "fbdev is not initialized\n");
> + }
> +
> + ret = drm_dev_register(drm, 0);
> + if (ret < 0)
> + goto err_fb;
> +
> + return 0;
> +
> +err_fb:
> + if (xlnx_drm->fb)
> + xlnx_fb_fini(xlnx_drm->fb);
> + component_unbind_all(drm->dev, drm);
> +err_crtc:
> + xlnx_crtc_helper_fini(drm, xlnx_drm->crtc);
> +err_xlnx_drm:
> + drm_mode_config_cleanup(drm);
> +err_drm:
> + drm_dev_unref(drm);
> + return ret;
> +}
> +
> +static void xlnx_unbind(struct device *dev)
> +{
> + struct xlnx_drm *xlnx_drm = dev_get_drvdata(dev);
> + struct drm_device *drm = xlnx_drm->drm;
> +
> + drm_dev_unregister(drm);
> + if (xlnx_drm->fb)
> + xlnx_fb_fini(xlnx_drm->fb);
> + component_unbind_all(drm->dev, drm);
> + xlnx_crtc_helper_fini(drm, xlnx_drm->crtc);
> + drm_kms_helper_poll_fini(drm);
> + drm_mode_config_cleanup(drm);
> + drm_dev_unref(drm);
> +}
> +
> +static const struct component_master_ops xlnx_master_ops = {
> + .bind = xlnx_bind,
> + .unbind = xlnx_unbind,
> +};
> +
> +static int xlnx_of_component_probe(struct device *dev,
> + int (*compare_of)(struct device *, void *),
> + const struct component_master_ops *m_ops)
> +{
> + struct device_node *ep, *port, *remote;
> + struct component_match *match = NULL;
> + int i;
> +
> + if (!dev->of_node)
> + return -EINVAL;
> +
> + for (i = 0; ; i++) {
> + port = of_parse_phandle(dev->of_node, "ports", i);
> + if (!port)
> + break;
> +
> + if (!of_device_is_available(port->parent)) {
> + of_node_put(port);
> + continue;
> + }
> +
> + component_match_add(dev, &match, compare_of, port->parent);
> + of_node_put(port);
> + }
> +
> + if (i == 0) {
> + dev_err(dev, "missing 'ports' property\n");
> + return -ENODEV;
> + }
> +
> + if (!match) {
> + dev_err(dev, "no available port\n");
> + return -ENODEV;
> + }
> +
> + for (i = 0; ; i++) {
> + port = of_parse_phandle(dev->of_node, "ports", i);
> + if (!port)
> + break;
> +
> + if (!of_device_is_available(port->parent)) {
> + of_node_put(port);
> + continue;
> + }
> +
> + for_each_child_of_node(port, ep) {
> + remote = of_graph_get_remote_port_parent(ep);
> + if (!remote || !of_device_is_available(remote)) {
> + of_node_put(remote);
> + continue;
> + } else if (!of_device_is_available(remote->parent)) {
> + dev_warn(dev, "parent dev of %s unavailable\n",
> + remote->full_name);
> + of_node_put(remote);
> + continue;
> + }
> + component_match_add(dev, &match, compare_of, remote);
> + of_node_put(remote);
> + }
> + of_node_put(port);
> + }
> +
> + return component_master_add_with_match(dev, m_ops, match);
> +}
> +
> +static int xlnx_compare_of(struct device *dev, void *data)
> +{
> + return dev->of_node == data;
> +}
> +
> +static int xlnx_platform_probe(struct platform_device *pdev)
> +{
> + return xlnx_of_component_probe(&pdev->dev, xlnx_compare_of,
> + &xlnx_master_ops);
> +}
> +
> +static int xlnx_platform_remove(struct platform_device *pdev)
> +{
> + component_master_del(&pdev->dev, &xlnx_master_ops);
> + return 0;
> +}
> +
> +static void xlnx_platform_shutdown(struct platform_device *pdev)
> +{
> + struct xlnx_drm *xlnx_drm = platform_get_drvdata(pdev);
> +
> + drm_put_dev(xlnx_drm->drm);
> +}
> +
> +static int __maybe_unused xlnx_pm_suspend(struct device *dev)
> +{
> + struct xlnx_drm *xlnx_drm = dev_get_drvdata(dev);
> + struct drm_device *drm = xlnx_drm->drm;
> +
> + drm_kms_helper_poll_disable(drm);
> +
> + xlnx_drm->suspend_state = drm_atomic_helper_suspend(drm);
> + if (IS_ERR(xlnx_drm->suspend_state)) {
> + drm_kms_helper_poll_enable(drm);
> + return PTR_ERR(xlnx_drm->suspend_state);
> + }
> +
> + return 0;
> +}
> +
> +static int __maybe_unused xlnx_pm_resume(struct device *dev)
> +{
> + struct xlnx_drm *xlnx_drm = dev_get_drvdata(dev);
> + struct drm_device *drm = xlnx_drm->drm;
> +
> + drm_atomic_helper_resume(drm, xlnx_drm->suspend_state);
> + drm_kms_helper_poll_enable(drm);
> +
> + return 0;
> +}
> +
> +static const struct dev_pm_ops xlnx_pm_ops = {
> + SET_SYSTEM_SLEEP_PM_OPS(xlnx_pm_suspend, xlnx_pm_resume)
> +};
> +
> +static const struct of_device_id xlnx_of_match[] = {
> + { .compatible = "xlnx,kms", },
> + { /* end of table */ },
> +};
> +MODULE_DEVICE_TABLE(of, xlnx_of_match);
> +
> +static struct platform_driver xlnx_driver = {
> + .probe = xlnx_platform_probe,
> + .remove = xlnx_platform_remove,
> + .shutdown = xlnx_platform_shutdown,
> + .driver = {
> + .name = "xlnx-drm",
> + .pm = &xlnx_pm_ops,
> + .of_match_table = xlnx_of_match,
> + },
> +};
> +
> +module_platform_driver(xlnx_driver);
> +
> +MODULE_AUTHOR("Xilinx, Inc.");
> +MODULE_DESCRIPTION("Xilinx DRM KMS Driver");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/gpu/drm/xlnx/xlnx_drv.h b/drivers/gpu/drm/xlnx/xlnx_drv.h
> new file mode 100644
> index 0000000..6ec285c
> --- /dev/null
> +++ b/drivers/gpu/drm/xlnx/xlnx_drv.h
> @@ -0,0 +1,22 @@
> +/*
> + * Xilinx DRM KMS Header for Xilinx
> + *
> + * Copyright (C) 2013 - 2018 Xilinx, Inc.
> + *
> + * Author: Hyun Woo Kwon <hyunk at xilinx.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0
> + */
> +
> +#ifndef _XLNX_DRV_H_
> +#define _XLNX_DRV_H_
> +
> +struct drm_device;
> +struct xlnx_crtc_helper;
> +
> +uint32_t xlnx_get_format(struct drm_device *drm);
> +unsigned int xlnx_get_align(struct drm_device *drm);
> +struct xlnx_crtc_helper *xlnx_get_crtc_helper(struct drm_device *drm);
> +struct xlnx_bridge_helper *xlnx_get_bridge_helper(struct drm_device *drm);
> +
> +#endif /* _XLNX_DRV_H_ */
> diff --git a/drivers/gpu/drm/xlnx/xlnx_fb.c b/drivers/gpu/drm/xlnx/xlnx_fb.c
> index dbe9fbf..029a4d3 100644
> --- a/drivers/gpu/drm/xlnx/xlnx_fb.c
> +++ b/drivers/gpu/drm/xlnx/xlnx_fb.c
> @@ -18,6 +18,7 @@
> #include <drm/drm_fb_helper.h>
> #include <drm/drm_gem_cma_helper.h>
>
> +#include "xlnx_drv.h"
> #include "xlnx_fb.h"
>
> #define XLNX_MAX_PLANES 4
> diff --git a/drivers/gpu/drm/xlnx/xlnx_gem.c b/drivers/gpu/drm/xlnx/xlnx_gem.c
> index af1abdc..6395f65 100644
> --- a/drivers/gpu/drm/xlnx/xlnx_gem.c
> +++ b/drivers/gpu/drm/xlnx/xlnx_gem.c
> @@ -11,6 +11,7 @@
> #include <drm/drmP.h>
> #include <drm/drm_gem_cma_helper.h>
>
> +#include "xlnx_drv.h"
> #include "xlnx_gem.h"
>
> /*
> --
> 2.7.4
>
> _______________________________________________
> dri-devel mailing list
> dri-devel at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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