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path: root/drivers/gpu/drm/mgag200/mgag200_drv.c
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Diffstat (limited to 'drivers/gpu/drm/mgag200/mgag200_drv.c')
-rw-r--r--drivers/gpu/drm/mgag200/mgag200_drv.c36
1 files changed, 35 insertions, 1 deletions
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
index 397f8b0a9af8..d43951caeea0 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.c
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -30,6 +30,8 @@ module_param_named(modeset, mgag200_modeset, int, 0400);
static struct drm_driver driver;
static const struct pci_device_id pciidlist[] = {
+ { PCI_VENDOR_ID_MATROX, 0x522, PCI_VENDOR_ID_SUN, 0x4852, 0, 0,
+ G200_SE_A | MGAG200_FLAG_HW_BUG_NO_STARTADD},
{ PCI_VENDOR_ID_MATROX, 0x522, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_A },
{ PCI_VENDOR_ID_MATROX, 0x524, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_B },
{ PCI_VENDOR_ID_MATROX, 0x530, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EV },
@@ -60,6 +62,35 @@ static void mga_pci_remove(struct pci_dev *pdev)
DEFINE_DRM_GEM_FOPS(mgag200_driver_fops);
+static bool mgag200_pin_bo_at_0(const struct mga_device *mdev)
+{
+ return mdev->flags & MGAG200_FLAG_HW_BUG_NO_STARTADD;
+}
+
+int mgag200_driver_dumb_create(struct drm_file *file,
+ struct drm_device *dev,
+ struct drm_mode_create_dumb *args)
+{
+ struct mga_device *mdev = dev->dev_private;
+ unsigned long pg_align;
+
+ if (WARN_ONCE(!dev->vram_mm, "VRAM MM not initialized"))
+ return -EINVAL;
+
+ pg_align = 0ul;
+
+ /*
+ * Aligning scanout buffers to the size of the video ram forces
+ * placement at offset 0. Works around a bug where HW does not
+ * respect 'startadd' field.
+ */
+ if (mgag200_pin_bo_at_0(mdev))
+ pg_align = PFN_UP(mdev->mc.vram_size);
+
+ return drm_gem_vram_fill_create_dumb(file, dev, &dev->vram_mm->bdev,
+ pg_align, false, args);
+}
+
static struct drm_driver driver = {
.driver_features = DRIVER_GEM | DRIVER_MODESET,
.load = mgag200_driver_load,
@@ -71,7 +102,10 @@ static struct drm_driver driver = {
.major = DRIVER_MAJOR,
.minor = DRIVER_MINOR,
.patchlevel = DRIVER_PATCHLEVEL,
- DRM_GEM_VRAM_DRIVER
+ .debugfs_init = drm_vram_mm_debugfs_init,
+ .dumb_create = mgag200_driver_dumb_create,
+ .dumb_map_offset = drm_gem_vram_driver_dumb_mmap_offset,
+ .gem_prime_mmap = drm_gem_prime_mmap,
};
static struct pci_driver mgag200_pci_driver = {