Merge tag 'v3.10-rc1' into stable/for-linus-3.10

Linux 3.10-rc1

* tag 'v3.10-rc1': (12273 commits)
  Linux 3.10-rc1
  [SCSI] qla2xxx: Update firmware link in Kconfig file.
  [SCSI] iscsi class, qla4xxx: fix sess/conn refcounting when find fns are used
  [SCSI] sas: unify the pointlessly separated enums sas_dev_type and sas_device_type
  [SCSI] pm80xx: thermal, sas controller config and error handling update
  [SCSI] pm80xx: NCQ error handling changes
  [SCSI] pm80xx: WWN Modification for PM8081/88/89 controllers
  [SCSI] pm80xx: Changed module name and debug messages update
  [SCSI] pm80xx: Firmware flash memory free fix, with addition of new memory region for it
  [SCSI] pm80xx: SPC new firmware changes for device id 0x8081 alone
  [SCSI] pm80xx: Added SPCv/ve specific hardware functionalities and relevant changes in common files
  [SCSI] pm80xx: MSI-X implementation for using 64 interrupts
  [SCSI] pm80xx: Updated common functions common for SPC and SPCv/ve
  [SCSI] pm80xx: Multiple inbound/outbound queue configuration
  [SCSI] pm80xx: Added SPCv/ve specific ids, variables and modify for SPC
  [SCSI] lpfc: fix up Kconfig dependencies
  [SCSI] Handle MLQUEUE busy response in scsi_send_eh_cmnd
  dm cache: set config value
  dm cache: move config fns
  dm thin: generate event when metadata threshold passed
  ...

1 files changed, 44 insertions, 8 deletions

diff --git a/drivers/gpu/drm/gma500/gtt.c b/drivers/gpu/drm/gma500/gtt.c
index 054e26e769e..1f82183536a 100644
--- a/drivers/gpu/drm/gma500/gtt.c
+++ b/drivers/gpu/drm/gma500/gtt.c
@@ -80,7 +80,8 @@ static u32 __iomem *psb_gtt_entry(struct drm_device *dev, struct gtt_range *r)
  *	the GTT. This is protected via the gtt mutex which the caller
  *	must hold.
  */
-static int psb_gtt_insert(struct drm_device *dev, struct gtt_range *r)
+static int psb_gtt_insert(struct drm_device *dev, struct gtt_range *r,
+			  int resume)
 {
 	u32 __iomem *gtt_slot;
 	u32 pte;
@@ -97,8 +98,10 @@ static int psb_gtt_insert(struct drm_device *dev, struct gtt_range *r)
 	gtt_slot = psb_gtt_entry(dev, r);
 	pages = r->pages;
 
-	/* Make sure changes are visible to the GPU */
-	set_pages_array_wc(pages, r->npage);
+	if (!resume) {
+		/* Make sure changes are visible to the GPU */
+		set_pages_array_wc(pages, r->npage);
+	}
 
 	/* Write our page entries into the GTT itself */
 	for (i = r->roll; i < r->npage; i++) {
@@ -269,7 +272,7 @@ int psb_gtt_pin(struct gtt_range *gt)
 		ret = psb_gtt_attach_pages(gt);
 		if (ret < 0)
 			goto out;
-		ret = psb_gtt_insert(dev, gt);
+		ret = psb_gtt_insert(dev, gt, 0);
 		if (ret < 0) {
 			psb_gtt_detach_pages(gt);
 			goto out;
@@ -421,9 +424,11 @@ int psb_gtt_init(struct drm_device *dev, int resume)
 	int ret = 0;
 	uint32_t pte;
 
-	mutex_init(&dev_priv->gtt_mutex);
+	if (!resume) {
+		mutex_init(&dev_priv->gtt_mutex);
+		psb_gtt_alloc(dev);
+	}
 
-	psb_gtt_alloc(dev);
 	pg = &dev_priv->gtt;
 
 	/* Enable the GTT */
@@ -505,7 +510,8 @@ int psb_gtt_init(struct drm_device *dev, int resume)
 	/*
 	 *	Map the GTT and the stolen memory area
 	 */
-	dev_priv->gtt_map = ioremap_nocache(pg->gtt_phys_start,
+	if (!resume)
+		dev_priv->gtt_map = ioremap_nocache(pg->gtt_phys_start,
 						gtt_pages << PAGE_SHIFT);
 	if (!dev_priv->gtt_map) {
 		dev_err(dev->dev, "Failure to map gtt.\n");
@@ -513,7 +519,9 @@ int psb_gtt_init(struct drm_device *dev, int resume)
 		goto out_err;
 	}
 
-	dev_priv->vram_addr = ioremap_wc(dev_priv->stolen_base, stolen_size);
+	if (!resume)
+		dev_priv->vram_addr = ioremap_wc(dev_priv->stolen_base,
+						 stolen_size);
 	if (!dev_priv->vram_addr) {
 		dev_err(dev->dev, "Failure to map stolen base.\n");
 		ret = -ENOMEM;
@@ -549,3 +557,31 @@ out_err:
 	psb_gtt_takedown(dev);
 	return ret;
 }
+
+int psb_gtt_restore(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct resource *r = dev_priv->gtt_mem->child;
+	struct gtt_range *range;
+	unsigned int restored = 0, total = 0, size = 0;
+
+	/* On resume, the gtt_mutex is already initialized */
+	mutex_lock(&dev_priv->gtt_mutex);
+	psb_gtt_init(dev, 1);
+
+	while (r != NULL) {
+		range = container_of(r, struct gtt_range, resource);
+		if (range->pages) {
+			psb_gtt_insert(dev, range, 1);
+			size += range->resource.end - range->resource.start;
+			restored++;
+		}
+		r = r->sibling;
+		total++;
+	}
+	mutex_unlock(&dev_priv->gtt_mutex);
+	DRM_DEBUG_DRIVER("Restored %u of %u gtt ranges (%u KB)", restored,
+			 total, (size / 1024));
+
+	return 0;
+}