drm: fixup PCI DMA support

This patch makes the PCI support use the correct Linux interfaces finally.
Tested in DRM CVS on PCI MGA card.

Signed-off-by: Dave Airlie <airlied@linux.ie>

1 files changed, 11 insertions, 9 deletions

diff --git a/drivers/char/drm/drm_bufs.c b/drivers/char/drm/drm_bufs.c
index e2637b4d51de..8a9cf12e6183 100644
--- a/drivers/char/drm/drm_bufs.c
+++ b/drivers/char/drm/drm_bufs.c
@@ -474,8 +474,7 @@ static void drm_cleanup_buf_error(drm_device_t * dev, drm_buf_entry_t * entry)
         if (entry->seg_count) {
                 for (i = 0; i < entry->seg_count; i++) {
                         if (entry->seglist[i]) {
-                                drm_free_pages(entry->seglist[i],
-                                               entry->page_order, DRM_MEM_DMA);
+                                drm_pci_free(dev, entry->seglist[i]);
                         }
                 }
                 drm_free(entry->seglist,
@@ -678,7 +677,7 @@ int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request)
         int total;
         int page_order;
         drm_buf_entry_t *entry;
-        unsigned long page;
+        drm_dma_handle_t *dmah;
         drm_buf_t *buf;
         int alignment;
         unsigned long offset;
@@ -781,8 +780,10 @@ int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request)
         page_count = 0;
 
         while (entry->buf_count < count) {
-                page = drm_alloc_pages(page_order, DRM_MEM_DMA);
-                if (!page) {
+                
+                dmah = drm_pci_alloc(dev, PAGE_SIZE << page_order, 0x1000, 0xfffffffful);
+                
+                if (!dmah) {
                         /* Set count correctly so we free the proper amount. */
                         entry->buf_count = count;
                         entry->seg_count = count;
@@ -794,13 +795,13 @@ int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request)
                         atomic_dec(&dev->buf_alloc);
                         return -ENOMEM;
                 }
-                entry->seglist[entry->seg_count++] = page;
+                entry->seglist[entry->seg_count++] = dmah;
                 for (i = 0; i < (1 << page_order); i++) {
                         DRM_DEBUG("page %d @ 0x%08lx\n",
                                   dma->page_count + page_count,
-                                  page + PAGE_SIZE * i);
+                                  (unsigned long)dmah->vaddr + PAGE_SIZE * i);
                         temp_pagelist[dma->page_count + page_count++]
-                            = page + PAGE_SIZE * i;
+                                = (unsigned long)dmah->vaddr + PAGE_SIZE * i;
                 }
                 for (offset = 0;
                      offset + size <= total && entry->buf_count < count;
@@ -811,7 +812,8 @@ int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request)
                         buf->order = order;
                         buf->used = 0;
                         buf->offset = (dma->byte_count + byte_count + offset);
-                        buf->address = (void *)(page + offset);
+                        buf->address = (void *)(dmah->vaddr + offset);
+                        buf->bus_address = dmah->busaddr + offset;
                         buf->next = NULL;
                         buf->waiting = 0;
                         buf->pending = 0;