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Commit de96355c authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 

* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (55 commits)
  Revert "drm/i915: Try enabling RC6 by default (again)"
  drm/radeon: Extended DDC Probing for ECS A740GM-M DVI-D Connector
  drm/radeon: Log Subsystem Vendor and Device Information
  drm/radeon: Extended DDC Probing for Connectors with Improperly Wired DDC Lines (here: Asus M2A-VM HDMI)
  drm: Separate EDID Header Check from EDID Block Check
  drm: Add NULL check about irq functions
  drm: Fix irq install error handling
  drm/radeon: fix potential NULL dereference in drivers/gpu/drm/radeon/atom.c
  drm/radeon: clean reg header files
  drm/debugfs: Initialise empty variable
  drm/radeon/kms: add thermal chip quirk for asus 9600xt
  drm/radeon: off by one in check_reg() functions
  drm/radeon/kms: fix version comment due to merge timing
  drm/i915: allow cache sharing policy control
  drm/i915/hdmi: HDMI source product description infoframe support
  drm/i915/hdmi: split infoframe setting from infoframe type code
  drm: track CEA version number if present
  drm/i915: Try enabling RC6 by default (again)
  Revert "drm/i915/dp: Zero the DPCD data before connection probe"
  drm/i915/dp: wait for previous AUX channel activity to clear
  ...
parents 8cd290a0 39060a07

drivers/gpu/drm/drm_debugfs.c

+3 −1
Original line number Diff line number Diff line
@@ -90,7 +90,6 @@ int drm_debugfs_create_files(struct drm_info_list *files, int count, 
	struct drm_device *dev = minor->dev;

	struct dentry *ent;

	struct drm_info_node *tmp;

	char name[64];

	int i, ret;



	for (i = 0; i < count; i++) {
@@ -108,6 +107,9 @@ int drm_debugfs_create_files(struct drm_info_list *files, int count, 
		ent = debugfs_create_file(files[i].name, S_IFREG | S_IRUGO,

					  root, tmp, &drm_debugfs_fops);

		if (!ent) {

			char name[64];

			strncpy(name, root->d_name.name,

						min(root->d_name.len, 64U));

			DRM_ERROR("Cannot create /sys/kernel/debug/dri/%s/%s\n",

				  name, files[i].name);

			kfree(tmp);

drivers/gpu/drm/drm_edid.c

+27 −6
Original line number Diff line number Diff line
@@ -127,6 +127,23 @@ static const u8 edid_header[] = { 
	0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00

};



 /*

 * Sanity check the header of the base EDID block.  Return 8 if the header

 * is perfect, down to 0 if it's totally wrong.

 */

int drm_edid_header_is_valid(const u8 *raw_edid)

{

	int i, score = 0;



	for (i = 0; i < sizeof(edid_header); i++)

		if (raw_edid[i] == edid_header[i])

			score++;



	return score;

}

EXPORT_SYMBOL(drm_edid_header_is_valid);





/*

 * Sanity check the EDID block (base or extension).  Return 0 if the block

 * doesn't check out, or 1 if it's valid.
@@ -139,12 +156,7 @@ drm_edid_block_valid(u8 *raw_edid) 
	struct edid *edid = (struct edid *)raw_edid;



	if (raw_edid[0] == 0x00) {

		int score = 0;



		for (i = 0; i < sizeof(edid_header); i++)

			if (raw_edid[i] == edid_header[i])

				score++;



		int score = drm_edid_header_is_valid(raw_edid);

		if (score == 8) ;

		else if (score >= 6) {

			DRM_DEBUG("Fixing EDID header, your hardware may be failing\n");
@@ -1439,6 +1451,8 @@ EXPORT_SYMBOL(drm_detect_monitor_audio); 
static void drm_add_display_info(struct edid *edid,

				 struct drm_display_info *info)

{

	u8 *edid_ext;



	info->width_mm = edid->width_cm * 10;

	info->height_mm = edid->height_cm * 10;
@@ -1483,6 +1497,13 @@ static void drm_add_display_info(struct edid *edid, 
		info->color_formats = DRM_COLOR_FORMAT_YCRCB444;

	if (info->color_formats & DRM_EDID_FEATURE_RGB_YCRCB422)

		info->color_formats = DRM_COLOR_FORMAT_YCRCB422;



	/* Get data from CEA blocks if present */

	edid_ext = drm_find_cea_extension(edid);

	if (!edid_ext)

		return;



	info->cea_rev = edid_ext[1];

}



/**

drivers/gpu/drm/drm_irq.c

+18 −8
Original line number Diff line number Diff line
@@ -291,10 +291,13 @@ static void drm_irq_vgaarb_nokms(void *cookie, bool state) 
	if (!dev->irq_enabled)

		return;



	if (state)

	if (state) {

		if (dev->driver->irq_uninstall)

			dev->driver->irq_uninstall(dev);

	else {

	} else {

		if (dev->driver->irq_preinstall)

			dev->driver->irq_preinstall(dev);

		if (dev->driver->irq_postinstall)

			dev->driver->irq_postinstall(dev);

	}

}
@@ -338,6 +341,7 @@ int drm_irq_install(struct drm_device *dev) 
	DRM_DEBUG("irq=%d\n", drm_dev_to_irq(dev));



	/* Before installing handler */

	if (dev->driver->irq_preinstall)

		dev->driver->irq_preinstall(dev);



	/* Install handler */
@@ -363,11 +367,16 @@ int drm_irq_install(struct drm_device *dev) 
		vga_client_register(dev->pdev, (void *)dev, drm_irq_vgaarb_nokms, NULL);



	/* After installing handler */

	if (dev->driver->irq_postinstall)

		ret = dev->driver->irq_postinstall(dev);



	if (ret < 0) {

		mutex_lock(&dev->struct_mutex);

		dev->irq_enabled = 0;

		mutex_unlock(&dev->struct_mutex);

		if (!drm_core_check_feature(dev, DRIVER_MODESET))

			vga_client_register(dev->pdev, NULL, NULL, NULL);

		free_irq(drm_dev_to_irq(dev), dev);

	}



	return ret;
@@ -413,6 +422,7 @@ int drm_irq_uninstall(struct drm_device *dev) 
	if (!drm_core_check_feature(dev, DRIVER_MODESET))

		vga_client_register(dev->pdev, NULL, NULL, NULL);



	if (dev->driver->irq_uninstall)

		dev->driver->irq_uninstall(dev);



	free_irq(drm_dev_to_irq(dev), dev);

drivers/gpu/drm/i915/i915_debugfs.c

+189 −0
Original line number Diff line number Diff line
@@ -1338,6 +1338,155 @@ static const struct file_operations i915_wedged_fops = { 
	.llseek = default_llseek,

};



static int

i915_max_freq_open(struct inode *inode,

		   struct file *filp)

{

	filp->private_data = inode->i_private;

	return 0;

}



static ssize_t

i915_max_freq_read(struct file *filp,

		   char __user *ubuf,

		   size_t max,

		   loff_t *ppos)

{

	struct drm_device *dev = filp->private_data;

	drm_i915_private_t *dev_priv = dev->dev_private;

	char buf[80];

	int len;



	len = snprintf(buf, sizeof (buf),

		       "max freq: %d\n", dev_priv->max_delay * 50);



	if (len > sizeof (buf))

		len = sizeof (buf);



	return simple_read_from_buffer(ubuf, max, ppos, buf, len);

}



static ssize_t

i915_max_freq_write(struct file *filp,

		  const char __user *ubuf,

		  size_t cnt,

		  loff_t *ppos)

{

	struct drm_device *dev = filp->private_data;

	struct drm_i915_private *dev_priv = dev->dev_private;

	char buf[20];

	int val = 1;



	if (cnt > 0) {

		if (cnt > sizeof (buf) - 1)

			return -EINVAL;



		if (copy_from_user(buf, ubuf, cnt))

			return -EFAULT;

		buf[cnt] = 0;



		val = simple_strtoul(buf, NULL, 0);

	}



	DRM_DEBUG_DRIVER("Manually setting max freq to %d\n", val);



	/*

	 * Turbo will still be enabled, but won't go above the set value.

	 */

	dev_priv->max_delay = val / 50;



	gen6_set_rps(dev, val / 50);



	return cnt;

}



static const struct file_operations i915_max_freq_fops = {

	.owner = THIS_MODULE,

	.open = i915_max_freq_open,

	.read = i915_max_freq_read,

	.write = i915_max_freq_write,

	.llseek = default_llseek,

};



static int

i915_cache_sharing_open(struct inode *inode,

		   struct file *filp)

{

	filp->private_data = inode->i_private;

	return 0;

}



static ssize_t

i915_cache_sharing_read(struct file *filp,

		   char __user *ubuf,

		   size_t max,

		   loff_t *ppos)

{

	struct drm_device *dev = filp->private_data;

	drm_i915_private_t *dev_priv = dev->dev_private;

	char buf[80];

	u32 snpcr;

	int len;



	mutex_lock(&dev_priv->dev->struct_mutex);

	snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);

	mutex_unlock(&dev_priv->dev->struct_mutex);



	len = snprintf(buf, sizeof (buf),

		       "%d\n", (snpcr & GEN6_MBC_SNPCR_MASK) >>

		       GEN6_MBC_SNPCR_SHIFT);



	if (len > sizeof (buf))

		len = sizeof (buf);



	return simple_read_from_buffer(ubuf, max, ppos, buf, len);

}



static ssize_t

i915_cache_sharing_write(struct file *filp,

		  const char __user *ubuf,

		  size_t cnt,

		  loff_t *ppos)

{

	struct drm_device *dev = filp->private_data;

	struct drm_i915_private *dev_priv = dev->dev_private;

	char buf[20];

	u32 snpcr;

	int val = 1;



	if (cnt > 0) {

		if (cnt > sizeof (buf) - 1)

			return -EINVAL;



		if (copy_from_user(buf, ubuf, cnt))

			return -EFAULT;

		buf[cnt] = 0;



		val = simple_strtoul(buf, NULL, 0);

	}



	if (val < 0 || val > 3)

		return -EINVAL;



	DRM_DEBUG_DRIVER("Manually setting uncore sharing to %d\n", val);



	/* Update the cache sharing policy here as well */

	snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);

	snpcr &= ~GEN6_MBC_SNPCR_MASK;

	snpcr |= (val << GEN6_MBC_SNPCR_SHIFT);

	I915_WRITE(GEN6_MBCUNIT_SNPCR, snpcr);



	return cnt;

}



static const struct file_operations i915_cache_sharing_fops = {

	.owner = THIS_MODULE,

	.open = i915_cache_sharing_open,

	.read = i915_cache_sharing_read,

	.write = i915_cache_sharing_write,

	.llseek = default_llseek,

};



/* As the drm_debugfs_init() routines are called before dev->dev_private is

 * allocated we need to hook into the minor for release. */

static int
@@ -1437,6 +1586,36 @@ static int i915_forcewake_create(struct dentry *root, struct drm_minor *minor) 
	return drm_add_fake_info_node(minor, ent, &i915_forcewake_fops);

}



static int i915_max_freq_create(struct dentry *root, struct drm_minor *minor)

{

	struct drm_device *dev = minor->dev;

	struct dentry *ent;



	ent = debugfs_create_file("i915_max_freq",

				  S_IRUGO | S_IWUSR,

				  root, dev,

				  &i915_max_freq_fops);

	if (IS_ERR(ent))

		return PTR_ERR(ent);



	return drm_add_fake_info_node(minor, ent, &i915_max_freq_fops);

}



static int i915_cache_sharing_create(struct dentry *root, struct drm_minor *minor)

{

	struct drm_device *dev = minor->dev;

	struct dentry *ent;



	ent = debugfs_create_file("i915_cache_sharing",

				  S_IRUGO | S_IWUSR,

				  root, dev,

				  &i915_cache_sharing_fops);

	if (IS_ERR(ent))

		return PTR_ERR(ent);



	return drm_add_fake_info_node(minor, ent, &i915_cache_sharing_fops);

}



static struct drm_info_list i915_debugfs_list[] = {

	{"i915_capabilities", i915_capabilities, 0},

	{"i915_gem_objects", i915_gem_object_info, 0},
@@ -1488,6 +1667,12 @@ int i915_debugfs_init(struct drm_minor *minor) 
		return ret;



	ret = i915_forcewake_create(minor->debugfs_root, minor);

	if (ret)

		return ret;

	ret = i915_max_freq_create(minor->debugfs_root, minor);

	if (ret)

		return ret;

	ret = i915_cache_sharing_create(minor->debugfs_root, minor);

	if (ret)

		return ret;
@@ -1504,6 +1689,10 @@ void i915_debugfs_cleanup(struct drm_minor *minor) 
				 1, minor);

	drm_debugfs_remove_files((struct drm_info_list *) &i915_wedged_fops,

				 1, minor);

	drm_debugfs_remove_files((struct drm_info_list *) &i915_max_freq_fops,

				 1, minor);

	drm_debugfs_remove_files((struct drm_info_list *) &i915_cache_sharing_fops,

				 1, minor);

}



#endif /* CONFIG_DEBUG_FS */

drivers/gpu/drm/i915/i915_dma.c

+2 −4
Original line number Diff line number Diff line
@@ -61,7 +61,6 @@ static void i915_write_hws_pga(struct drm_device *dev) 
static int i915_init_phys_hws(struct drm_device *dev)

{

	drm_i915_private_t *dev_priv = dev->dev_private;

	struct intel_ring_buffer *ring = LP_RING(dev_priv);



	/* Program Hardware Status Page */

	dev_priv->status_page_dmah =
@@ -71,10 +70,9 @@ static int i915_init_phys_hws(struct drm_device *dev) 
		DRM_ERROR("Can not allocate hardware status page\n");

		return -ENOMEM;

	}

	ring->status_page.page_addr =

		(void __force __iomem *)dev_priv->status_page_dmah->vaddr;



	memset_io(ring->status_page.page_addr, 0, PAGE_SIZE);

	memset_io((void __force __iomem *)dev_priv->status_page_dmah->vaddr,

		  0, PAGE_SIZE);



	i915_write_hws_pga(dev);