drm/radeon: Deprecate UMS support v2

        select DRM_TTM

	select POWER_SUPPLY

	select HWMON

	select BACKLIGHT_CLASS_DEVICE

	help

	  Choose this option if you have an ATI Radeon graphics card.  There

	  are both PCI and AGP versions.  You don't need to choose this to

config DRM_RADEON_KMS

	bool "Enable modesetting on radeon by default - NEW DRIVER"

config DRM_RADEON_UMS

	bool "Enable userspace modesetting on radeon (DEPRECATED)"

	depends on DRM_RADEON

	select BACKLIGHT_CLASS_DEVICE

	help

	  Choose this option if you want kernel modesetting enabled by default.

	  Choose this option if you still need userspace modesetting.

	  This is a completely new driver. It's only part of the existing drm

	  for compatibility reasons. It requires an entirely different graphics

	  stack above it and works very differently from the old drm stack.

	  i.e. don't enable this unless you know what you are doing it may

	  cause issues or bugs compared to the previous userspace driver stack.

	  When kernel modesetting is enabled the IOCTL of radeon/drm

	  driver are considered as invalid and an error message is printed

	  in the log and they return failure.

	  KMS enabled userspace will use new API to talk with the radeon/drm

	  driver. The new API provide functions to create/destroy/share/mmap

	  buffer object which are then managed by the kernel memory manager

	  (here TTM). In order to submit command to the GPU the userspace

	  provide a buffer holding the command stream, along this buffer

	  userspace have to provide a list of buffer object used by the

	  command stream. The kernel radeon driver will then place buffer

	  in GPU accessible memory and will update command stream to reflect

	  the position of the different buffers.

	  The kernel will also perform security check on command stream

	  provided by the user, we want to catch and forbid any illegal use

	  of the GPU such as DMA into random system memory or into memory

	  not owned by the process supplying the command stream.

	  Userspace modesetting is deprecated for quite some time now, so

	  enable this only if you have ancient versions of the DDX drivers.

$(obj)/evergreen_cs.o: $(obj)/evergreen_reg_safe.h $(obj)/cayman_reg_safe.h

radeon-y := radeon_drv.o radeon_cp.o radeon_state.o radeon_mem.o \

	radeon_irq.o r300_cmdbuf.o r600_cp.o

radeon-y := radeon_drv.o

# add UMS driver

radeon-$(CONFIG_DRM_RADEON_UMS)+= radeon_cp.o radeon_state.o radeon_mem.o \

	radeon_irq.o r300_cmdbuf.o r600_cp.o r600_blit.o

# add KMS driver

radeon-y += radeon_device.o radeon_asic.o radeon_kms.o \

	radeon_atombios.o radeon_agp.o atombios_crtc.o radeon_combios.o \

	radeon_clocks.o radeon_fb.o radeon_gem.o radeon_ring.o radeon_irq_kms.o \

	radeon_cs.o radeon_bios.o radeon_benchmark.o r100.o r300.o r420.o \

	rs400.o rs600.o rs690.o rv515.o r520.o r600.o rv770.o radeon_test.o \

	r200.o radeon_legacy_tv.o r600_cs.o r600_blit.o r600_blit_shaders.o \

	r200.o radeon_legacy_tv.o r600_cs.o r600_blit_shaders.o \

	r600_blit_kms.o radeon_pm.o atombios_dp.o r600_audio.o r600_hdmi.o \

	evergreen.o evergreen_cs.o evergreen_blit_shaders.o evergreen_blit_kms.o \

	evergreen_hdmi.o radeon_trace_points.o ni.o cayman_blit_shaders.o \

 *

 * Authors:

 *    Nicolai Haehnle <prefect_@gmx.net>

 *

 * ------------------------ This file is DEPRECATED! -------------------------

 */

#include <drm/drmP.h>

 *

 * Authors:

 *     Alex Deucher <alexander.deucher@amd.com>

 *

 * ------------------------ This file is DEPRECATED! -------------------------

 */

#include <drm/drmP.h>

#include <drm/radeon_drm.h>

	ADVANCE_RING();

}

/* 23 bits of float fractional data */

#define I2F_FRAC_BITS  23

#define I2F_MASK ((1 << I2F_FRAC_BITS) - 1)

/*

 * Converts unsigned integer into 32-bit IEEE floating point representation.

 * Will be exact from 0 to 2^24.  Above that, we round towards zero

 * as the fractional bits will not fit in a float.  (It would be better to

 * round towards even as the fpu does, but that is slower.)

 */

__pure uint32_t int2float(uint32_t x)

{

	uint32_t msb, exponent, fraction;

	/* Zero is special */

	if (!x) return 0;

	/* Get location of the most significant bit */

	msb = __fls(x);

	/*

	 * Use a rotate instead of a shift because that works both leftwards

	 * and rightwards due to the mod(32) behaviour.  This means we don't

	 * need to check to see if we are above 2^24 or not.

	 */

	fraction = ror32(x, (msb - I2F_FRAC_BITS) & 0x1f) & I2F_MASK;

	exponent = (127 + msb) << I2F_FRAC_BITS;

	return fraction + exponent;

}

static int r600_nomm_get_vb(struct drm_device *dev)

{

	drm_radeon_private_t *dev_priv = dev->dev_private;