4 files changed, 68 insertions, 22 deletions

diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 8364a705f125..04b564bfc4a1 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -9,6 +9,7 @@
 /*
  * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * Copyright (c) 2009-2010, Code Aurora Forum.
  * All rights reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -48,6 +49,7 @@
 #include <linux/proc_fs.h>
 #include <linux/init.h>
 #include <linux/file.h>
+#include <linux/platform_device.h>
 #include <linux/pci.h>
 #include <linux/jiffies.h>
 #include <linux/smp_lock.h>     /* For (un)lock_kernel */
@@ -144,6 +146,7 @@ extern void drm_ut_debug_printk(unsigned int request_level,
 #define DRIVER_IRQ_VBL2    0x800
 #define DRIVER_GEM         0x1000
 #define DRIVER_MODESET     0x2000
+#define DRIVER_USE_PLATFORM_DEVICE  0x4000
 
 /***********************************************************************/
 /** \name Begin the DRM... */
@@ -825,6 +828,7 @@ struct drm_driver {
         int num_ioctls;
         struct file_operations fops;
         struct pci_driver pci_driver;
+        struct platform_device *platform_device;
         /* List of devices hanging off this driver */
         struct list_head device_list;
 };
@@ -1017,12 +1021,16 @@ struct drm_device {
 
         struct drm_agp_head *agp;       /**< AGP data */
 
+        struct device *dev;             /**< Device structure */
         struct pci_dev *pdev;           /**< PCI device structure */
         int pci_vendor;                 /**< PCI vendor id */
         int pci_device;                 /**< PCI device id */
 #ifdef __alpha__
         struct pci_controller *hose;
 #endif
+
+        struct platform_device *platformdev; /**< Platform device struture */
+
         struct drm_sg_mem *sg;  /**< Scatter gather memory */
         int num_crtcs;                  /**< Number of CRTCs on this device */
         void *dev_private;              /**< device private data */
@@ -1062,17 +1070,21 @@ struct drm_device {
 
 };
 
-static inline int drm_dev_to_irq(struct drm_device *dev)
-{
-        return dev->pdev->irq;
-}
-
 static __inline__ int drm_core_check_feature(struct drm_device *dev,
                                              int feature)
 {
         return ((dev->driver->driver_features & feature) ? 1 : 0);
 }
 
+
+static inline int drm_dev_to_irq(struct drm_device *dev)
+{
+        if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
+                return platform_get_irq(dev->platformdev, 0);
+        else
+                return dev->pdev->irq;
+}
+
 #ifdef __alpha__
 #define drm_get_pci_domain(dev) dev->hose->index
 #else
@@ -1275,10 +1287,6 @@ extern int drm_freebufs(struct drm_device *dev, void *data,
 extern int drm_mapbufs(struct drm_device *dev, void *data,
                        struct drm_file *file_priv);
 extern int drm_order(unsigned long size);
-extern resource_size_t drm_get_resource_start(struct drm_device *dev,
-                                              unsigned int resource);
-extern resource_size_t drm_get_resource_len(struct drm_device *dev,
-                                            unsigned int resource);
 
                                 /* DMA support (drm_dma.h) */
 extern int drm_dma_setup(struct drm_device *dev);
@@ -1353,8 +1361,11 @@ extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
 struct drm_master *drm_master_create(struct drm_minor *minor);
 extern struct drm_master *drm_master_get(struct drm_master *master);
 extern void drm_master_put(struct drm_master **master);
-extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
-                       struct drm_driver *driver);
+extern int drm_get_pci_dev(struct pci_dev *pdev,
+                           const struct pci_device_id *ent,
+                           struct drm_driver *driver);
+extern int drm_get_platform_dev(struct platform_device *pdev,
+                                struct drm_driver *driver);
 extern void drm_put_dev(struct drm_device *dev);
 extern int drm_put_minor(struct drm_minor **minor);
 extern unsigned int drm_debug;
@@ -1531,6 +1542,9 @@ static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev,
 
 static __inline__ int drm_device_is_agp(struct drm_device *dev)
 {
+        if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
+                return 0;
+
         if (dev->driver->device_is_agp != NULL) {
                 int err = (*dev->driver->device_is_agp) (dev);
 
@@ -1544,7 +1558,10 @@ static __inline__ int drm_device_is_agp(struct drm_device *dev)
 
 static __inline__ int drm_device_is_pcie(struct drm_device *dev)
 {
-        return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
+        if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
+                return 0;
+        else
+                return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
 }
 
 static __inline__ void drm_core_dropmap(struct drm_local_map *map)
@@ -1552,6 +1569,21 @@ static __inline__ void drm_core_dropmap(struct drm_local_map *map)
 }
 
 #include "drm_mem_util.h"
+
+static inline void *drm_get_device(struct drm_device *dev)
+{
+        if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
+                return dev->platformdev;
+        else
+                return dev->pdev;
+}
+
+extern int drm_platform_init(struct drm_driver *driver);
+extern int drm_pci_init(struct drm_driver *driver);
+extern int drm_fill_in_dev(struct drm_device *dev,
+                           const struct pci_device_id *ent,
+                           struct drm_driver *driver);
+int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type);
 /*@}*/
 
 #endif                          /* __KERNEL__ */
diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
index 1121f7799c6f..7e3c9766acba 100644
--- a/include/drm/drm_crtc_helper.h
+++ b/include/drm/drm_crtc_helper.h
@@ -63,6 +63,9 @@ struct drm_crtc_helper_funcs {
 
         /* reload the current crtc LUT */
         void (*load_lut)(struct drm_crtc *crtc);
+
+        /* disable crtc when not in use - more explicit than dpms off */
+        void (*disable)(struct drm_crtc *crtc);
 };
 
 struct drm_encoder_helper_funcs {
diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h
index 4c10be39a43b..bf01531193d5 100644
--- a/include/drm/drm_mm.h
+++ b/include/drm/drm_mm.h
@@ -42,21 +42,31 @@
 #endif
 
 struct drm_mm_node {
-        struct list_head fl_entry;
-        struct list_head ml_entry;
-        int free;
+        struct list_head free_stack;
+        struct list_head node_list;
+        unsigned free : 1;
+        unsigned scanned_block : 1;
+        unsigned scanned_prev_free : 1;
+        unsigned scanned_next_free : 1;
         unsigned long start;
         unsigned long size;
         struct drm_mm *mm;
-        void *private;
 };
 
 struct drm_mm {
-        struct list_head fl_entry;
-        struct list_head ml_entry;
+        /* List of free memory blocks, most recently freed ordered. */
+        struct list_head free_stack;
+        /* List of all memory nodes, ordered according to the (increasing) start
+         * address of the memory node. */
+        struct list_head node_list;
         struct list_head unused_nodes;
         int num_unused;
         spinlock_t unused_lock;
+        unsigned scan_alignment;
+        unsigned long scan_size;
+        unsigned long scan_hit_start;
+        unsigned scan_hit_size;
+        unsigned scanned_blocks;
 };
 
 /*
@@ -133,6 +143,11 @@ static inline struct drm_mm *drm_get_mm(struct drm_mm_node *block)
         return block->mm;
 }
 
+void drm_mm_init_scan(struct drm_mm *mm, unsigned long size,
+                      unsigned alignment);
+int drm_mm_scan_add_block(struct drm_mm_node *node);
+int drm_mm_scan_remove_block(struct drm_mm_node *node);
+
 extern void drm_mm_debug_table(struct drm_mm *mm, const char *prefix);
 #ifdef CONFIG_DEBUG_FS
 int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm);
diff --git a/include/drm/ttm/ttm_page_alloc.h b/include/drm/ttm/ttm_page_alloc.h
index 8bb4de567b2c..116821448c38 100644
--- a/include/drm/ttm/ttm_page_alloc.h
+++ b/include/drm/ttm/ttm_page_alloc.h
@@ -56,10 +56,6 @@ void ttm_put_pages(struct list_head *pages,
                    enum ttm_caching_state cstate);
 /**
  * Initialize pool allocator.
- *
- * Pool allocator is internaly reference counted so it can be initialized
- * multiple times but ttm_page_alloc_fini has to be called same number of
- * times.
  */
 int ttm_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages);
 /**