path: root/drivers/gpu/drm/radeon/radeon.h

/*
 * Copyright 2008 Advanced Micro Devices, Inc.
 * Copyright 2008 Red Hat Inc.
 * Copyright 2009 Jerome Glisse.
 *
 * 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.
 *
 * Authors: Dave Airlie
 *          Alex Deucher
 *          Jerome Glisse
 */
#ifndef __RADEON_H__
#define __RADEON_H__

#include "radeon_object.h"

/* TODO: Here are things that needs to be done :
 *	- surface allocator & initializer : (bit like scratch reg) should
 *	  initialize HDP_ stuff on RS600, R600, R700 hw, well anythings
 *	  related to surface
 *	- WB : write back stuff (do it bit like scratch reg things)
 *	- Vblank : look at Jesse's rework and what we should do
 *	- r600/r700: gart & cp
 *	- cs : clean cs ioctl use bitmap & things like that.
 *	- power management stuff
 *	- Barrier in gart code
 *	- Unmappabled vram ?
 *	- TESTING, TESTING, TESTING
 */

#include <asm/atomic.h>
#include <linux/wait.h>
#include <linux/list.h>
#include <linux/kref.h>

#include "radeon_mode.h"
#include "radeon_reg.h"

/*
 * Modules parameters.
 */
extern int radeon_no_wb;
extern int radeon_modeset;
extern int radeon_dynclks;
extern int radeon_r4xx_atom;
extern int radeon_agpmode;
extern int radeon_vram_limit;
extern int radeon_gart_size;
extern int radeon_benchmarking;
extern int radeon_testing;
extern int radeon_connector_table;
extern int radeon_tv;

/*
 * Copy from radeon_drv.h so we don't have to include both and have conflicting
 * symbol;
 */
#define RADEON_MAX_USEC_TIMEOUT		100000	/* 100 ms */
#define RADEON_IB_POOL_SIZE		16
#define RADEON_DEBUGFS_MAX_NUM_FILES	32
#define RADEONFB_CONN_LIMIT		4
#define RADEON_BIOS_NUM_SCRATCH		8

enum radeon_family {
	CHIP_R100,
	CHIP_RV100,
	CHIP_RS100,
	CHIP_RV200,
	CHIP_RS200,
	CHIP_R200,
	CHIP_RV250,
	CHIP_RS300,
	CHIP_RV280,
	CHIP_R300,
	CHIP_R350,
	CHIP_RV350,
	CHIP_RV380,
	CHIP_R420,
	CHIP_R423,
	CHIP_RV410,
	CHIP_RS400,
	CHIP_RS480,
	CHIP_RS600,
	CHIP_RS690,
	CHIP_RS740,
	CHIP_RV515,
	CHIP_R520,
	CHIP_RV530,
	CHIP_RV560,
	CHIP_RV570,
	CHIP_R580,
	CHIP_R600,
	CHIP_RV610,
	CHIP_RV630,
	CHIP_RV620,
	CHIP_RV635,
	CHIP_RV670,
	CHIP_RS780,
	CHIP_RS880,
	CHIP_RV770,
	CHIP_RV730,
	CHIP_RV710,
	CHIP_RV740,
	CHIP_LAST,
};

enum radeon_chip_flags {
	RADEON_FAMILY_MASK = 0x0000ffffUL,
	RADEON_FLAGS_MASK = 0xffff0000UL,
	RADEON_IS_MOBILITY = 0x00010000UL,
	RADEON_IS_IGP = 0x00020000UL,
	RADEON_SINGLE_CRTC = 0x00040000UL,
	RADEON_IS_AGP = 0x00080000UL,
	RADEON_HAS_HIERZ = 0x00100000UL,
	RADEON_IS_PCIE = 0x00200000UL,
	RADEON_NEW_MEMMAP = 0x00400000UL,
	RADEON_IS_PCI = 0x00800000UL,
	RADEON_IS_IGPGART = 0x01000000UL,
};


/*
 * Errata workarounds.
 */
enum radeon_pll_errata {
	CHIP_ERRATA_R300_CG             = 0x00000001,
	CHIP_ERRATA_PLL_DUMMYREADS      = 0x00000002,
	CHIP_ERRATA_PLL_DELAY           = 0x00000004
};


struct radeon_device;


/*
 * BIOS.
 */
bool radeon_get_bios(struct radeon_device *rdev);


/*
 * Dummy page
 */
struct radeon_dummy_page {
	struct page	*page;
	dma_addr_t	addr;
};
int radeon_dummy_page_init(struct radeon_device *rdev);
void radeon_dummy_page_fini(struct radeon_device *rdev);


/*
 * Clocks
 */
struct radeon_clock {
	struct radeon_pll p1pll;
	struct radeon_pll p2pll;
	struct radeon_pll spll;
	struct radeon_pll mpll;
	/* 10 Khz units */
	uint32_t default_mclk;
	uint32_t default_sclk;
};


/*
 * Fences.
 */
struct radeon_fence_driver {
	uint32_t			scratch_reg;
	atomic_t			seq;
	uint32_t			last_seq;
	unsigned long			count_timeout;
	wait_queue_head_t		queue;
	rwlock_t			lock;
	struct list_head		created;
	struct list_head		emited;
	struct list_head		signaled;
};

struct radeon_fence {
	struct radeon_device		*rdev;
	struct kref			kref;
	struct list_head		list;
	/* protected by radeon_fence.lock */
	uint32_t			seq;
	unsigned long			timeout;
	bool				emited;
	bool				signaled;
};

int radeon_fence_driver_init(struct radeon_device *rdev);
void radeon_fence_driver_fini(struct radeon_device *rdev);
int radeon_fence_create(struct radeon_device *rdev, struct radeon_fence **fence);
int radeon_fence_emit