diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 3f48a57531b5823a3fafb6b4433068078c439743..f97563db4e59550d68d8b54c5cfcebf56375a57f 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -34,6 +34,23 @@ #include "radeon_asic.h" #include "atom.h" +/* + * Clear GPU surface registers. + */ +static void radeon_surface_init(struct radeon_device *rdev) +{ + /* FIXME: check this out */ + if (rdev->family < CHIP_R600) { + int i; + + for (i = 0; i < 8; i++) { + WREG32(RADEON_SURFACE0_INFO + + i * (RADEON_SURFACE1_INFO - RADEON_SURFACE0_INFO), + 0); + } + } +} + /* * GPU scratch registers helpers function. */ @@ -496,6 +513,9 @@ int radeon_device_init(struct radeon_device *rdev, radeon_errata(rdev); /* Initialize scratch registers */ radeon_scratch_init(rdev); + /* Initialize surface registers */ + radeon_surface_init(rdev); + /* TODO: disable VGA need to use VGA request */ /* BIOS*/ if (!radeon_get_bios(rdev)) {