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Diffstat (limited to 'kernel/drivers/gpu/drm/mgag200/mgag200_main.c')
-rw-r--r--kernel/drivers/gpu/drm/mgag200/mgag200_main.c61
1 files changed, 32 insertions, 29 deletions
diff --git a/kernel/drivers/gpu/drm/mgag200/mgag200_main.c b/kernel/drivers/gpu/drm/mgag200/mgag200_main.c
index f6b283b83..b1a0f5656 100644
--- a/kernel/drivers/gpu/drm/mgag200/mgag200_main.c
+++ b/kernel/drivers/gpu/drm/mgag200/mgag200_main.c
@@ -82,12 +82,19 @@ static int mga_probe_vram(struct mga_device *mdev, void __iomem *mem)
int orig;
int test1, test2;
int orig1, orig2;
+ unsigned int vram_size;
/* Probe */
orig = ioread16(mem);
iowrite16(0, mem);
- for (offset = 0x100000; offset < mdev->mc.vram_window; offset += 0x4000) {
+ vram_size = mdev->mc.vram_window;
+
+ if ((mdev->type == G200_EW3) && (vram_size >= 0x1000000)) {
+ vram_size = vram_size - 0x400000;
+ }
+
+ for (offset = 0x100000; offset < vram_size; offset += 0x4000) {
orig1 = ioread8(mem + offset);
orig2 = ioread8(mem + offset + 0x100);
@@ -213,7 +220,7 @@ int mgag200_driver_load(struct drm_device *dev, unsigned long flags)
}
r = mgag200_mm_init(mdev);
if (r)
- goto out;
+ goto err_mm;
drm_mode_config_init(dev);
dev->mode_config.funcs = (void *)&mga_mode_funcs;
@@ -226,7 +233,7 @@ int mgag200_driver_load(struct drm_device *dev, unsigned long flags)
r = mgag200_modeset_init(mdev);
if (r) {
dev_err(&dev->pdev->dev, "Fatal error during modeset init: %d\n", r);
- goto out;
+ goto err_modeset;
}
/* Make small buffers to store a hardware cursor (double buffered icon updates) */
@@ -234,20 +241,24 @@ int mgag200_driver_load(struct drm_device *dev, unsigned long flags)
&mdev->cursor.pixels_1);
mgag200_bo_create(dev, roundup(48*64, PAGE_SIZE), 0, 0,
&mdev->cursor.pixels_2);
- if (!mdev->cursor.pixels_2 || !mdev->cursor.pixels_1)
- goto cursor_nospace;
- mdev->cursor.pixels_current = mdev->cursor.pixels_1;
- mdev->cursor.pixels_prev = mdev->cursor.pixels_2;
- goto cursor_done;
- cursor_nospace:
- mdev->cursor.pixels_1 = NULL;
- mdev->cursor.pixels_2 = NULL;
- dev_warn(&dev->pdev->dev, "Could not allocate space for cursors. Not doing hardware cursors.\n");
- cursor_done:
-
-out:
- if (r)
- mgag200_driver_unload(dev);
+ if (!mdev->cursor.pixels_2 || !mdev->cursor.pixels_1) {
+ mdev->cursor.pixels_1 = NULL;
+ mdev->cursor.pixels_2 = NULL;
+ dev_warn(&dev->pdev->dev,
+ "Could not allocate space for cursors. Not doing hardware cursors.\n");
+ } else {
+ mdev->cursor.pixels_current = mdev->cursor.pixels_1;
+ mdev->cursor.pixels_prev = mdev->cursor.pixels_2;
+ }
+
+ return 0;
+
+err_modeset:
+ drm_mode_config_cleanup(dev);
+ mgag200_mm_fini(mdev);
+err_mm:
+ dev->dev_private = NULL;
+
return r;
}
@@ -345,23 +356,15 @@ mgag200_dumb_mmap_offset(struct drm_file *file,
uint64_t *offset)
{
struct drm_gem_object *obj;
- int ret;
struct mgag200_bo *bo;
- mutex_lock(&dev->struct_mutex);
obj = drm_gem_object_lookup(dev, file, handle);
- if (obj == NULL) {
- ret = -ENOENT;
- goto out_unlock;
- }
+ if (obj == NULL)
+ return -ENOENT;
bo = gem_to_mga_bo(obj);
*offset = mgag200_bo_mmap_offset(bo);
- drm_gem_object_unreference(obj);
- ret = 0;
-out_unlock:
- mutex_unlock(&dev->struct_mutex);
- return ret;
-
+ drm_gem_object_unreference_unlocked(obj);
+ return 0;
}