drm/radeon: introduce kernel modesetting for radeon hardware

	  (/dev/agpgart) support.

	  (/dev/agpgart) support.

config DRM_TTM

config DRM_TTM

	tristate "TTM memory manager"

	tristate

	depends on DRM

	depends on DRM

	help

	help

	  GPU memory management subsystem for devices with multiple

	  GPU memory management subsystem for devices with multiple

config DRM_RADEON

config DRM_RADEON

	tristate "ATI Radeon"

	tristate "ATI Radeon"

	depends on DRM && PCI

	depends on DRM && PCI

	select FB_CFB_FILLRECT

	select FB_CFB_COPYAREA

	select FB_CFB_IMAGEBLIT

	select FB

	select FRAMEBUFFER_CONSOLE if !EMBEDDED

	help

	help

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

	  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

	  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"

	depends on DRM_RADEON

	select DRM_TTM

	help

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

	  and you have a new enough userspace to support this. Running old

	  userspaces with this enabled will cause pain.

	  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. This part

	  of the code is still incomplete and this why we propose that patch

	  as a staging driver addition, future security might forbid current

	  experimental userspace to run.

	  This code support the following hardware : R1XX,R2XX,R3XX,R4XX,R5XX

	  (radeon up to X1950). Works is underway to provide support for R6XX,

	  R7XX and newer hardware (radeon from HD2XXX to HD4XXX).

# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.

# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.

ccflags-y := -Iinclude/drm

ccflags-y := -Iinclude/drm

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 radeon_cp.o radeon_state.o radeon_mem.o \

	radeon_irq.o r300_cmdbuf.o r600_cp.o

radeon-$(CONFIG_DRM_RADEON_KMS) += radeon_device.o radeon_kms.o \

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

	atom.o radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \

	radeon_legacy_crtc.o radeon_legacy_encoders.o radeon_connectors.o \

	radeon_encoders.o radeon_display.o radeon_cursor.o radeon_i2c.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 rs780.o rv770.o

radeon-$(CONFIG_COMPAT) += radeon_ioc32.o

radeon-$(CONFIG_COMPAT) += radeon_ioc32.o

/*

 * Copyright 2008 Advanced Micro Devices, Inc.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and associated documentation files (the "Software"),

 * to deal in the Software without restriction, including without limitation

 * the rights to use, copy, modify, merge, publish, distribute, sublicense,

 * and/or sell copies of the Software, and to permit persons to whom the

 * Software is furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR

 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,

 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

 * OTHER DEALINGS IN THE SOFTWARE.

 *

 * Author: Stanislaw Skowronek

 */

#ifndef ATOM_BITS_H

#define ATOM_BITS_H

static inline uint8_t get_u8(void *bios, int ptr)

{

    return ((unsigned char *)bios)[ptr];

}

#define U8(ptr) get_u8(ctx->ctx->bios, (ptr))

#define CU8(ptr) get_u8(ctx->bios, (ptr))

static inline uint16_t get_u16(void *bios, int ptr)

{

    return get_u8(bios ,ptr)|(((uint16_t)get_u8(bios, ptr+1))<<8);

}

#define U16(ptr) get_u16(ctx->ctx->bios, (ptr))

#define CU16(ptr) get_u16(ctx->bios, (ptr))

static inline uint32_t get_u32(void *bios, int ptr)

{

    return get_u16(bios, ptr)|(((uint32_t)get_u16(bios, ptr+2))<<16);

}

#define U32(ptr) get_u32(ctx->ctx->bios, (ptr))

#define CU32(ptr) get_u32(ctx->bios, (ptr))

#define CSTR(ptr) (((char *)(ctx->bios))+(ptr))

#endif