drm: update PCIGART support from CVS

In order to work on FreeBSD the gart needed to use a local mapping
This patch moves the mainline to the new code and aligns some comment
changes

From: Eric Anholt <anholt@freebsd.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>

drivers/char/drm/ati_pcigart.c

@@ -52,7 +52,7 @@
 # define ATI_MAX_PCIGART_PAGES		8192	/**< 32 MB aperture, 4K pages */
 # define ATI_PCIGART_PAGE_SIZE		4096	/**< PCI GART page size */
 
-static unsigned long drm_ati_alloc_pcigart_table(void)
+static void *drm_ati_alloc_pcigart_table(void)
 {
 	unsigned long address;
 	struct page *page;
@@ -72,27 +72,26 @@ static unsigned long drm_ati_alloc_pcigart_table(void)
 	}
 
 	DRM_DEBUG("%s: returning 0x%08lx\n", __FUNCTION__, address);
-	return address;
+	return (void *)address;
 }
 
-static void drm_ati_free_pcigart_table(unsigned long address)
+static void drm_ati_free_pcigart_table(void *address)
 {
 	struct page *page;
 	int i;
 	DRM_DEBUG("%s\n", __FUNCTION__);
 
-	page = virt_to_page(address);
+	page = virt_to_page((unsigned long)address);
 
 	for (i = 0; i < ATI_PCIGART_TABLE_PAGES; i++, page++) {
 		__put_page(page);
 		ClearPageReserved(page);
 	}
 
-	free_pages(address, ATI_PCIGART_TABLE_ORDER);
+	free_pages((unsigned long)address, ATI_PCIGART_TABLE_ORDER);
 }
 
-int drm_ati_pcigart_cleanup(drm_device_t * dev,
-			    drm_ati_pcigart_info * gart_info)
+int drm_ati_pcigart_cleanup(drm_device_t *dev, drm_ati_pcigart_info *gart_info)
 {
 	drm_sg_mem_t *entry = dev->sg;
 	unsigned long pages;
@@ -136,10 +135,10 @@ int drm_ati_pcigart_cleanup(drm_device_t * dev,
 
 EXPORT_SYMBOL(drm_ati_pcigart_cleanup);
 
-int drm_ati_pcigart_init(drm_device_t * dev, drm_ati_pcigart_info * gart_info)
+int drm_ati_pcigart_init(drm_device_t *dev, drm_ati_pcigart_info *gart_info)
 {
 	drm_sg_mem_t *entry = dev->sg;
-	unsigned long address = 0;
+	void *address = NULL;
 	unsigned long pages;
 	u32 *pci_gart, page_base, bus_address = 0;
 	int i, j, ret = 0;
@@ -163,7 +162,7 @@ int drm_ati_pcigart_init(drm_device_t * dev, drm_ati_pcigart_info * gart_info)
 			goto done;
 		}
 
-		bus_address = pci_map_single(dev->pdev, (void *)address,
+		bus_address = pci_map_single(dev->pdev, address,
 					     ATI_PCIGART_TABLE_PAGES *
 					     PAGE_SIZE, PCI_DMA_TODEVICE);
 		if (bus_address == 0) {
@@ -176,7 +175,7 @@ int drm_ati_pcigart_init(drm_device_t * dev, drm_ati_pcigart_info * gart_info)
 		address = gart_info->addr;
 		bus_address = gart_info->bus_addr;
 		DRM_DEBUG("PCI: Gart Table: VRAM %08X mapped at %08lX\n",
-			  bus_address, address);
+			  bus_address, (unsigned long)address);
 	}
 
 	pci_gart = (u32 *) address;
@@ -195,7 +194,7 @@ int drm_ati_pcigart_init(drm_device_t * dev, drm_ati_pcigart_info * gart_info)
 		if (entry->busaddr[i] == 0) {
 			DRM_ERROR("unable to map PCIGART pages!\n");
 			drm_ati_pcigart_cleanup(dev, gart_info);
-			address = 0;
+			address = NULL;
 			bus_address = 0;
 			goto done;
 		}

drivers/char/drm/drmP.h

@@ -522,8 +522,9 @@ typedef struct drm_vbl_sig {
 typedef struct ati_pcigart_info {
 	int gart_table_location;
 	int is_pcie;
-	unsigned long addr;
+	void *addr;
 	dma_addr_t bus_addr;
+	drm_local_map_t mapping;
 } drm_ati_pcigart_info;
 
 /**

drivers/char/drm/r128_cce.c

 /* r128_cce.c -- ATI Rage 128 driver -*- linux-c -*- 
  * Created: Wed Apr  5 19:24:19 2000 by kevin@precisioninsight.com
- *
+ */
+/*
  * Copyright 2000 Precision Insight, Inc., Cedar Park, Texas.
  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
  * All Rights Reserved.
@@ -559,7 +560,8 @@ static int r128_do_init_cce(drm_device_t * dev, drm_r128_init_t * init)
 	if (dev_priv->is_pci) {
 #endif
 		dev_priv->gart_info.gart_table_location = DRM_ATI_GART_MAIN;
-		dev_priv->gart_info.addr = dev_priv->gart_info.bus_addr = 0;
+		dev_priv->gart_info.addr = NULL;
+		dev_priv->gart_info.bus_addr = 0;
 		dev_priv->gart_info.is_pcie = 0;
 		if (!drm_ati_pcigart_init(dev, &dev_priv->gart_info)) {
 			DRM_ERROR("failed to init PCI GART!\n");
@@ -601,15 +603,16 @@ int r128_do_cleanup_cce(drm_device_t * dev)
 				drm_core_ioremapfree(dev_priv->cce_ring, dev);
 			if (dev_priv->ring_rptr != NULL)
 				drm_core_ioremapfree(dev_priv->ring_rptr, dev);
-			if (dev->agp_buffer_map != NULL)
+			if (dev->agp_buffer_map != NULL) {
 				drm_core_ioremapfree(dev->agp_buffer_map, dev);
+				dev->agp_buffer_map = NULL;
+			}
 		} else
 #endif
 		{
 			if (dev_priv->gart_info.bus_addr)
 				if (!drm_ati_pcigart_cleanup(dev,
-							     &dev_priv->
-							     gart_info))
+							&dev_priv->gart_info))
 					DRM_ERROR
 					    ("failed to cleanup PCI GART!\n");
 		}

drivers/char/drm/r128_drm.h

 /* r128_drm.h -- Public header for the r128 driver -*- linux-c -*-
  * Created: Wed Apr  5 19:24:19 2000 by kevin@precisioninsight.com
- *
- * Copyright 2000 Precision Insight, Inc., Cedar Park, Texas.
+ */
+/* Copyright 2000 Precision Insight, Inc., Cedar Park, Texas.
  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
  * All rights reserved.
  *

drivers/char/drm/r128_drv.h

 /* r128_drv.h -- Private header for r128 driver -*- linux-c -*-
  * Created: Mon Dec 13 09:51:11 1999 by faith@precisioninsight.com
- *
- * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ */
+/* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
  * All rights reserved.
  *

drivers/char/drm/r128_irq.c

-/* r128_irq.c -- IRQ handling for radeon -*- linux-c -*-
- *
+/* r128_irq.c -- IRQ handling for radeon -*- linux-c -*- */
+/*
  * Copyright (C) The Weather Channel, Inc.  2002.  All Rights Reserved.
  *
  * The Weather Channel (TM) funded Tungsten Graphics to develop the

drivers/char/drm/r128_state.c

 /* r128_state.c -- State support for r128 -*- linux-c -*-
  * Created: Thu Jan 27 02:53:43 2000 by gareth@valinux.com
- *
- * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ */
+/* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
  * All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a

drivers/char/drm/radeon_cp.c

-/* radeon_cp.c -- CP support for Radeon -*- linux-c -*-
- *
+/* radeon_cp.c -- CP support for Radeon -*- linux-c -*- */
+/*
  * Copyright 2000 Precision Insight, Inc., Cedar Park, Texas.
  * Copyright 2000 VA Linux Systems, Inc., Fremont, California.
  * All Rights Reserved.
@@ -1561,24 +1561,27 @@ static int radeon_do_init_cp(drm_device_t * dev, drm_radeon_init_t * init)
 		if (dev_priv->pcigart_offset) {
 			dev_priv->gart_info.bus_addr =
 			    dev_priv->pcigart_offset + dev_priv->fb_location;
+			dev_priv->gart_info.mapping.offset =
+			    dev_priv->gart_info.bus_addr;
+			dev_priv->gart_info.mapping.size =
+			    RADEON_PCIGART_TABLE_SIZE;
+
+			drm_core_ioremap(&dev_priv->gart_info.mapping, dev);
 			dev_priv->gart_info.addr =
-			    (unsigned long)drm_ioremap(dev_priv->gart_info.
-						       bus_addr,
-						       RADEON_PCIGART_TABLE_SIZE,
-						       dev);
+			    dev_priv->gart_info.mapping.handle;
 
 			dev_priv->gart_info.is_pcie =
 			    !!(dev_priv->flags & CHIP_IS_PCIE);
 			dev_priv->gart_info.gart_table_location =
 			    DRM_ATI_GART_FB;
 
-			DRM_DEBUG("Setting phys_pci_gart to %08lX %08lX\n",
+			DRM_DEBUG("Setting phys_pci_gart to %p %08lX\n",
 				  dev_priv->gart_info.addr,
 				  dev_priv->pcigart_offset);
 		} else {
 			dev_priv->gart_info.gart_table_location =
 			    DRM_ATI_GART_MAIN;
-			dev_priv->gart_info.addr =
+			dev_priv->gart_info.addr = NULL;
 			dev_priv->gart_info.bus_addr = 0;
 			if (dev_priv->flags & CHIP_IS_PCIE) {
 				DRM_ERROR
@@ -1641,8 +1644,7 @@ static int radeon_do_cleanup_cp(drm_device_t * dev)
 				DRM_ERROR("failed to cleanup PCI GART!\n");
 
 		if (dev_priv->gart_info.gart_table_location == DRM_ATI_GART_FB) {
-			drm_ioremapfree((void *)dev_priv->gart_info.addr,
-					RADEON_PCIGART_TABLE_SIZE, dev);
+			drm_core_ioremapfree(&dev_priv->gart_info.mapping, dev);
 			dev_priv->gart_info.addr = 0;
 		}
 	}