Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

Pull drm merge (part 1) from Dave Airlie:
 "So first of all my tree and uapi stuff has a conflict mess, its my
  fault as the nouveau stuff didn't hit -next as were trying to rebase
  regressions out of it before we merged.

  Highlights:
   - SH mobile modesetting driver and associated helpers
   - some DRM core documentation
   - i915 modesetting rework, haswell hdmi, haswell and vlv fixes, write
     combined pte writing, ilk rc6 support,
   - nouveau: major driver rework into a hw core driver, makes features
     like SLI a lot saner to implement,
   - psb: add eDP/DP support for Cedarview
   - radeon: 2 layer page tables, async VM pte updates, better PLL
     selection for > 2 screens, better ACPI interactions

  The rest is general grab bag of fixes.

  So why part 1? well I have the exynos pull req which came in a bit
  late but was waiting for me to do something they shouldn't have and it
  looks fairly safe, and David Howells has some more header cleanups
  he'd like me to pull, that seem like a good idea, but I'd like to get
  this merge out of the way so -next dosen't get blocked."

Tons of conflicts mostly due to silly include line changes, but mostly
mindless.  A few other small semantic conflicts too, noted from Dave's
pre-merged branch.

* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (447 commits)
  drm/nv98/crypt: fix fuc build with latest envyas
  drm/nouveau/devinit: fixup various issues with subdev ctor/init ordering
  drm/nv41/vm: fix and enable use of "real" pciegart
  drm/nv44/vm: fix and enable use of "real" pciegart
  drm/nv04/dmaobj: fixup vm target handling in preparation for nv4x pcie
  drm/nouveau: store supported dma mask in vmmgr
  drm/nvc0/ibus: initial implementation of subdev
  drm/nouveau/therm: add support for fan-control modes
  drm/nouveau/hwmon: rename pwm0* to pmw1* to follow hwmon's rules
  drm/nouveau/therm: calculate the pwm divisor on nv50+
  drm/nouveau/fan: rewrite the fan tachometer driver to get more precision, faster
  drm/nouveau/therm: move thermal-related functions to the therm subdev
  drm/nouveau/bios: parse the pwm divisor from the perf table
  drm/nouveau/therm: use the EXTDEV table to detect i2c monitoring devices
  drm/nouveau/therm: rework thermal table parsing
  drm/nouveau/gpio: expose the PWM/TOGGLE parameter found in the gpio vbios table
  drm/nouveau: fix pm initialization order
  drm/nouveau/bios: check that fixed tvdac gpio data is valid before using it
  drm/nouveau: log channel debug/error messages from client object rather than drm client
  drm/nouveau: have drm debugging macros build on top of core macros
  ...

1 files changed, 361 insertions, 0 deletions

diff --git a/drivers/gpu/drm/shmobile/shmob_drm_drv.c b/drivers/gpu/drm/shmobile/shmob_drm_drv.c
new file mode 100644
index 000000000000..c71d493fd0c5
--- /dev/null
+++ b/drivers/gpu/drm/shmobile/shmob_drm_drv.c
@@ -0,0 +1,361 @@
+/*
+ * shmob_drm_drv.c  --  SH Mobile DRM driver
+ *
+ * Copyright (C) 2012 Renesas Corporation
+ *
+ * Laurent Pinchart (laurent.pinchart@ideasonboard.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/clk.h>
+#include <linux/io.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/slab.h>
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_gem_cma_helper.h>
+
+#include "shmob_drm_crtc.h"
+#include "shmob_drm_drv.h"
+#include "shmob_drm_kms.h"
+#include "shmob_drm_plane.h"
+#include "shmob_drm_regs.h"
+
+/* -----------------------------------------------------------------------------
+ * Hardware initialization
+ */
+
+static int __devinit shmob_drm_init_interface(struct shmob_drm_device *sdev)
+{
+	static const u32 ldmt1r[] = {
+		[SHMOB_DRM_IFACE_RGB8] = LDMT1R_MIFTYP_RGB8,
+		[SHMOB_DRM_IFACE_RGB9] = LDMT1R_MIFTYP_RGB9,
+		[SHMOB_DRM_IFACE_RGB12A] = LDMT1R_MIFTYP_RGB12A,
+		[SHMOB_DRM_IFACE_RGB12B] = LDMT1R_MIFTYP_RGB12B,
+		[SHMOB_DRM_IFACE_RGB16] = LDMT1R_MIFTYP_RGB16,
+		[SHMOB_DRM_IFACE_RGB18] = LDMT1R_MIFTYP_RGB18,
+		[SHMOB_DRM_IFACE_RGB24] = LDMT1R_MIFTYP_RGB24,
+		[SHMOB_DRM_IFACE_YUV422] = LDMT1R_MIFTYP_YCBCR,
+		[SHMOB_DRM_IFACE_SYS8A] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8A,
+		[SHMOB_DRM_IFACE_SYS8B] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8B,
+		[SHMOB_DRM_IFACE_SYS8C] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8C,
+		[SHMOB_DRM_IFACE_SYS8D] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8D,
+		[SHMOB_DRM_IFACE_SYS9] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS9,
+		[SHMOB_DRM_IFACE_SYS12] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS12,
+		[SHMOB_DRM_IFACE_SYS16A] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16A,
+		[SHMOB_DRM_IFACE_SYS16B] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16B,
+		[SHMOB_DRM_IFACE_SYS16C] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16C,
+		[SHMOB_DRM_IFACE_SYS18] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS18,
+		[SHMOB_DRM_IFACE_SYS24] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS24,
+	};
+
+	if (sdev->pdata->iface.interface >= ARRAY_SIZE(ldmt1r)) {
+		dev_err(sdev->dev, "invalid interface type %u\n",
+			sdev->pdata->iface.interface);
+		return -EINVAL;
+	}
+
+	sdev->ldmt1r = ldmt1r[sdev->pdata->iface.interface];
+	return 0;
+}
+
+static int __devinit shmob_drm_setup_clocks(struct shmob_drm_device *sdev,
+					    enum shmob_drm_clk_source clksrc)
+{
+	struct clk *clk;
+	char *clkname;
+
+	switch (clksrc) {
+	case SHMOB_DRM_CLK_BUS:
+		clkname = "bus_clk";
+		sdev->lddckr = LDDCKR_ICKSEL_BUS;
+		break;
+	case SHMOB_DRM_CLK_PERIPHERAL:
+		clkname = "peripheral_clk";
+		sdev->lddckr = LDDCKR_ICKSEL_MIPI;
+		break;
+	case SHMOB_DRM_CLK_EXTERNAL:
+		clkname = NULL;
+		sdev->lddckr = LDDCKR_ICKSEL_HDMI;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	clk = clk_get(sdev->dev, clkname);
+	if (IS_ERR(clk)) {
+		dev_err(sdev->dev, "cannot get dot clock %s\n", clkname);
+		return PTR_ERR(clk);
+	}
+
+	sdev->clock = clk;
+	return 0;
+}
+
+/* -----------------------------------------------------------------------------
+ * DRM operations
+ */
+
+static int shmob_drm_unload(struct drm_device *dev)
+{
+	struct shmob_drm_device *sdev = dev->dev_private;
+
+	drm_kms_helper_poll_fini(dev);
+	drm_mode_config_cleanup(dev);
+	drm_vblank_cleanup(dev);
+	drm_irq_uninstall(dev);
+
+	if (sdev->clock)
+		clk_put(sdev->clock);
+
+	if (sdev->mmio)
+		iounmap(sdev->mmio);
+
+	dev->dev_private = NULL;
+	kfree(sdev);
+
+	return 0;
+}
+
+static int shmob_drm_load(struct drm_device *dev, unsigned long flags)
+{
+	struct shmob_drm_platform_data *pdata = dev->dev->platform_data;
+	struct platform_device *pdev = dev->platformdev;
+	struct shmob_drm_device *sdev;
+	struct resource *res;
+	unsigned int i;
+	int ret;
+
+	if (pdata == NULL) {
+		dev_err(dev->dev, "no platform data\n");
+		return -EINVAL;
+	}
+
+	sdev = kzalloc(sizeof(*sdev), GFP_KERNEL);
+	if (sdev == NULL) {
+		dev_err(dev->dev, "failed to allocate private data\n");
+		return -ENOMEM;
+	}
+
+	sdev->dev = &pdev->dev;
+	sdev->pdata = pdata;
+	spin_lock_init(&sdev->irq_lock);
+
+	sdev->ddev = dev;
+	dev->dev_private = sdev;
+
+	/* I/O resources and clocks */
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (res == NULL) {
+		dev_err(&pdev->dev, "failed to get memory resource\n");
+		ret = -EINVAL;
+		goto done;
+	}
+
+	sdev->mmio = ioremap_nocache(res->start, resource_size(res));
+	if (sdev->mmio == NULL) {
+		dev_err(&pdev->dev, "failed to remap memory resource\n");
+		ret = -ENOMEM;
+		goto done;
+	}
+
+	ret = shmob_drm_setup_clocks(sdev, pdata->clk_source);
+	if (ret < 0)
+		goto done;
+
+	ret = shmob_drm_init_interface(sdev);
+	if (ret < 0)
+		goto done;
+
+	ret = shmob_drm_modeset_init(sdev);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "failed to initialize mode setting\n");
+		goto done;
+	}
+
+	for (i = 0; i < 4; ++i) {
+		ret = shmob_drm_plane_create(sdev, i);
+		if (ret < 0) {
+			dev_err(&pdev->dev, "failed to create plane %u\n", i);
+			goto done;
+		}
+	}
+
+	ret = drm_vblank_init(dev, 1);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "failed to initialize vblank\n");
+		goto done;
+	}
+
+	ret = drm_irq_install(dev);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "failed to install IRQ handler\n");
+		goto done;
+	}
+
+done:
+	if (ret)
+		shmob_drm_unload(dev);
+
+	return ret;
+}
+
+static void shmob_drm_preclose(struct drm_device *dev, struct drm_file *file)
+{
+	struct shmob_drm_device *sdev = dev->dev_private;
+
+	shmob_drm_crtc_cancel_page_flip(&sdev->crtc, file);
+}
+
+static irqreturn_t shmob_drm_irq(int irq, void *arg)
+{
+	struct drm_device *dev = arg;
+	struct shmob_drm_device *sdev = dev->dev_private;
+	unsigned long flags;
+	u32 status;
+
+	/* Acknowledge interrupts. Putting interrupt enable and interrupt flag
+	 * bits in the same register is really brain-dead design and requires
+	 * taking a spinlock.
+	 */
+	spin_lock_irqsave(&sdev->irq_lock, flags);
+	status = lcdc_read(sdev, LDINTR);
+	lcdc_write(sdev, LDINTR, status ^ LDINTR_STATUS_MASK);
+	spin_unlock_irqrestore(&sdev->irq_lock, flags);
+
+	if (status & LDINTR_VES) {
+		drm_handle_vblank(dev, 0);
+		shmob_drm_crtc_finish_page_flip(&sdev->crtc);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int shmob_drm_enable_vblank(struct drm_device *dev, int crtc)
+{
+	struct shmob_drm_device *sdev = dev->dev_private;
+
+	shmob_drm_crtc_enable_vblank(sdev, true);
+
+	return 0;
+}
+
+static void shmob_drm_disable_vblank(struct drm_device *dev, int crtc)
+{
+	struct shmob_drm_device *sdev = dev->dev_private;
+
+	shmob_drm_crtc_enable_vblank(sdev, false);
+}
+
+static const struct file_operations shmob_drm_fops = {
+	.owner		= THIS_MODULE,
+	.open		= drm_open,
+	.release	= drm_release,
+	.unlocked_ioctl	= drm_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl	= drm_compat_ioctl,
+#endif
+	.poll		= drm_poll,
+	.read		= drm_read,
+	.fasync		= drm_fasync,
+	.llseek		= no_llseek,
+	.mmap		= drm_gem_cma_mmap,
+};
+
+static struct drm_driver shmob_drm_driver = {
+	.driver_features	= DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET,
+	.load			= shmob_drm_load,
+	.unload			= shmob_drm_unload,
+	.preclose		= shmob_drm_preclose,
+	.irq_handler		= shmob_drm_irq,
+	.get_vblank_counter	= drm_vblank_count,
+	.enable_vblank		= shmob_drm_enable_vblank,
+	.disable_vblank		= shmob_drm_disable_vblank,
+	.gem_free_object	= drm_gem_cma_free_object,
+	.gem_vm_ops		= &drm_gem_cma_vm_ops,
+	.dumb_create		= drm_gem_cma_dumb_create,
+	.dumb_map_offset	= drm_gem_cma_dumb_map_offset,
+	.dumb_destroy		= drm_gem_cma_dumb_destroy,
+	.fops			= &shmob_drm_fops,
+	.name			= "shmob-drm",
+	.desc			= "Renesas SH Mobile DRM",
+	.date			= "20120424",
+	.major			= 1,
+	.minor			= 0,
+};
+
+/* -----------------------------------------------------------------------------
+ * Power management
+ */
+
+#if CONFIG_PM_SLEEP
+static int shmob_drm_pm_suspend(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct drm_device *ddev = platform_get_drvdata(pdev);
+	struct shmob_drm_device *sdev = ddev->dev_private;
+
+	drm_kms_helper_poll_disable(ddev);
+	shmob_drm_crtc_suspend(&sdev->crtc);
+
+	return 0;
+}
+
+static int shmob_drm_pm_resume(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct drm_device *ddev = platform_get_drvdata(pdev);
+	struct shmob_drm_device *sdev = ddev->dev_private;
+
+	mutex_lock(&sdev->ddev->mode_config.mutex);
+	shmob_drm_crtc_resume(&sdev->crtc);
+	mutex_unlock(&sdev->ddev->mode_config.mutex);
+
+	drm_kms_helper_poll_enable(sdev->ddev);
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops shmob_drm_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(shmob_drm_pm_suspend, shmob_drm_pm_resume)
+};
+
+/* -----------------------------------------------------------------------------
+ * Platform driver
+ */
+
+static int __devinit shmob_drm_probe(struct platform_device *pdev)
+{
+	return drm_platform_init(&shmob_drm_driver, pdev);
+}
+
+static int __devexit shmob_drm_remove(struct platform_device *pdev)
+{
+	drm_platform_exit(&shmob_drm_driver, pdev);
+
+	return 0;
+}
+
+static struct platform_driver shmob_drm_platform_driver = {
+	.probe		= shmob_drm_probe,
+	.remove		= __devexit_p(shmob_drm_remove),
+	.driver		= {
+		.owner	= THIS_MODULE,
+		.name	= "shmob-drm",
+		.pm	= &shmob_drm_pm_ops,
+	},
+};
+
+module_platform_driver(shmob_drm_platform_driver);
+
+MODULE_AUTHOR("Laurent Pinchart <laurent.pinchart@ideasonboard.com>");
+MODULE_DESCRIPTION("Renesas SH Mobile DRM Driver");
+MODULE_LICENSE("GPL");