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>

8 files changed, 43 insertions, 38 deletions

diff --git a/drivers/char/drm/ati_pcigart.c b/drivers/char/drm/ati_pcigart.c
index efff0eec618c..5485382cadec 100644
--- a/drivers/char/drm/ati_pcigart.c
+++ b/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;
                 }
diff --git a/drivers/char/drm/drmP.h b/drivers/char/drm/drmP.h
index a3ad85e05bd3..43c49ad3069b 100644
--- a/drivers/char/drm/drmP.h
+++ b/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;
 
 /**
diff --git a/drivers/char/drm/r128_cce.c b/drivers/char/drm/r128_cce.c
index 7452753d4d01..db5a60450e68 100644
--- a/drivers/char/drm/r128_cce.c
+++ b/drivers/char/drm/r128_cce.c
@@ -1,6 +1,7 @@
-/* r128_cce.c -- ATI Rage 128 driver -*- linux-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");
                 }
diff --git a/drivers/char/drm/r128_drm.h b/drivers/char/drm/r128_drm.h
index 5ddc03202411..5d835b006f55 100644
--- a/drivers/char/drm/r128_drm.h
+++ b/drivers/char/drm/r128_drm.h
@@ -1,7 +1,7 @@
 /* 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.
  *
diff --git a/drivers/char/drm/r128_drv.h b/drivers/char/drm/r128_drv.h
index 9a779bad3da3..94abffb2cca5 100644
--- a/drivers/char/drm/r128_drv.h
+++ b/drivers/char/drm/r128_drv.h
@@ -1,7 +1,7 @@
 /* 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.
  *
diff --git a/drivers/char/drm/r128_irq.c b/drivers/char/drm/r128_irq.c
index 27eb0e31bd3b..87f8ca2b0685 100644
--- a/drivers/char/drm/r128_irq.c
+++ b/drivers/char/drm/r128_irq.c
@@ -1,5 +1,5 @@
-/* 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
diff --git a/drivers/char/drm/r128_state.c b/drivers/char/drm/r128_state.c
index 6aeeb4b62d03..caeecc2c36da 100644
--- a/drivers/char/drm/r128_state.c
+++ b/drivers/char/drm/r128_state.c
@@ -1,7 +1,7 @@
 /* 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
diff --git a/drivers/char/drm/radeon_cp.c b/drivers/char/drm/radeon_cp.c
index dc3a15a1819a..eaa0e2b7c2f8 100644
--- a/drivers/char/drm/radeon_cp.c
+++ b/drivers/char/drm/radeon_cp.c
@@ -1,5 +1,5 @@
-/* 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.
@@ -1561,25 +1561,28 @@ 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.bus_addr = 0;
+                        dev_priv->gart_info.addr = NULL;
+                        dev_priv->gart_info.bus_addr = 0;
                         if (dev_priv->flags & CHIP_IS_PCIE) {
                                 DRM_ERROR
                                     ("Cannot use PCI Express without GART in FB memory\n");
@@ -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;
                 }
         }