radeon_drv.h

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/* radeon_drv.h -- Private header for radeon driver -*- linux-c -*-
 *
 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
 * Copyright 2000 VA Linux Systems, Inc., Fremont, California.
 * All rights reserved.
 *
 * 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 (including the next
 * paragraph) 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
 * PRECISION INSIGHT AND/OR ITS SUPPLIERS 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:
 *    Kevin E. Martin <[e-mail]>
 *    Gareth Hughes <[e-mail]>
 */

#ifndef __RADEON_DRV_H__
#define __RADEON_DRV_H__

#define GET_RING_HEAD(dev_priv)		DRM_READ32(  (dev_priv)->ring_rptr, 0 )
#define SET_RING_HEAD(dev_priv,val)	DRM_WRITE32( (dev_priv)->ring_rptr, 0, (val) )

typedef struct drm_radeon_freelist {
   	unsigned int age;
   	drm_buf_t *buf;
   	struct drm_radeon_freelist *next;
   	struct drm_radeon_freelist *prev;
} drm_radeon_freelist_t;

typedef struct drm_radeon_ring_buffer {
	u32 *start;
	u32 *end;
	int size;
	int size_l2qw;

	u32 tail;
	u32 tail_mask;
	int space;

	int high_mark;
} drm_radeon_ring_buffer_t;

typedef struct drm_radeon_depth_clear_t {
	u32 rb3d_cntl;
	u32 rb3d_zstencilcntl;
	u32 se_cntl;
} drm_radeon_depth_clear_t;


struct mem_block {
	struct mem_block *next;
	struct mem_block *prev;
	int start;
	int size;
	DRMFILE filp;		/* 0: free, -1: heap, other: real files */
};

typedef struct drm_radeon_private {
	drm_radeon_ring_buffer_t ring;
	drm_radeon_sarea_t *sarea_priv;

	u32 fb_location;

	int gart_size;
	u32 gart_vm_start;
	unsigned long gart_buffers_offset;

	int cp_mode;
	int cp_running;

   	drm_radeon_freelist_t *head;
   	drm_radeon_freelist_t *tail;
	int last_buf;
	volatile u32 *scratch;
	int writeback_works;

	int usec_timeout;

	int is_r200;

	int is_pci;
	unsigned long phys_pci_gart;
	dma_addr_t bus_pci_gart;

	struct {
		u32 boxes;
		int freelist_timeouts;
		int freelist_loops;
		int requested_bufs;
		int last_frame_reads;
		int last_clear_reads;
		int clears;
		int texture_uploads;
	} stats;

	int do_boxes;
	int page_flipping;
	int current_page;

	u32 color_fmt;
	unsigned int front_offset;
	unsigned int front_pitch;
	unsigned int back_offset;
	unsigned int back_pitch;

	u32 depth_fmt;
	unsigned int depth_offset;
	unsigned int depth_pitch;

	u32 front_pitch_offset;
	u32 back_pitch_offset;
	u32 depth_pitch_offset;

	drm_radeon_depth_clear_t depth_clear;
	
	unsigned long fb_offset;
	unsigned long mmio_offset;
	unsigned long ring_offset;
	unsigned long ring_rptr_offset;
	unsigned long buffers_offset;
	unsigned long gart_textures_offset;

	drm_local_map_t *sarea;
	drm_local_map_t *mmio;
	drm_local_map_t *cp_ring;
	drm_local_map_t *ring_rptr;
	drm_local_map_t *buffers;
	drm_local_map_t *gart_textures;

	struct mem_block *gart_heap;
	struct mem_block *fb_heap;

	/* SW interrupt */
   	wait_queue_head_t swi_queue;
   	atomic_t swi_emitted;

} drm_radeon_private_t;

typedef struct drm_radeon_buf_priv {
	u32 age;
} drm_radeon_buf_priv_t;

				/* radeon_cp.c */
extern int radeon_cp_init( DRM_IOCTL_ARGS );
extern int radeon_cp_start( DRM_IOCTL_ARGS );
extern int radeon_cp_stop( DRM_IOCTL_ARGS );
extern int radeon_cp_reset( DRM_IOCTL_ARGS );
extern int radeon_cp_idle( DRM_IOCTL_ARGS );
extern int radeon_cp_resume( DRM_IOCTL_ARGS );
extern int radeon_engine_reset( DRM_IOCTL_ARGS );
extern int radeon_fullscreen( DRM_IOCTL_ARGS );
extern int radeon_cp_buffers( DRM_IOCTL_ARGS );

extern void radeon_freelist_reset( drm_device_t *dev );
extern drm_buf_t *radeon_freelist_get( drm_device_t *dev );

extern int radeon_wait_ring( drm_radeon_private_t *dev_priv, int n );

extern int radeon_do_cp_idle( drm_radeon_private_t *dev_priv );
extern int radeon_do_cleanup_cp( drm_device_t *dev );
extern int radeon_do_cleanup_pageflip( drm_device_t *dev );

				/* radeon_state.c */
extern int radeon_cp_clear( DRM_IOCTL_ARGS );
extern int radeon_cp_swap( DRM_IOCTL_ARGS );
extern int radeon_cp_vertex( DRM_IOCTL_ARGS );
extern int radeon_cp_indices( DRM_IOCTL_ARGS );
extern int radeon_cp_texture( DRM_IOCTL_ARGS );
extern int radeon_cp_stipple( DRM_IOCTL_ARGS );
extern int radeon_cp_indirect( DRM_IOCTL_ARGS );
extern int radeon_cp_vertex2( DRM_IOCTL_ARGS );
extern int radeon_cp_cmdbuf( DRM_IOCTL_ARGS );
extern int radeon_cp_getparam( DRM_IOCTL_ARGS );
extern int radeon_cp_setparam( DRM_IOCTL_ARGS );
extern int radeon_cp_flip( DRM_IOCTL_ARGS );

extern int radeon_mem_alloc( DRM_IOCTL_ARGS );
extern int radeon_mem_free( DRM_IOCTL_ARGS );
extern int radeon_mem_init_heap( DRM_IOCTL_ARGS );
extern void radeon_mem_takedown( struct mem_block **heap );
extern void radeon_mem_release( DRMFILE filp, struct mem_block *heap );

				/* radeon_irq.c */
extern int radeon_irq_emit( DRM_IOCTL_ARGS );
extern int radeon_irq_wait( DRM_IOCTL_ARGS );

extern int radeon_emit_and_wait_irq(drm_device_t *dev);
extern int radeon_wait_irq(drm_device_t *dev, int swi_nr);
extern int radeon_emit_irq(drm_device_t *dev);

extern void radeon_do_release(drm_device_t *dev);

/* Flags for stats.boxes
 */
#define RADEON_BOX_DMA_IDLE      0x1
#define RADEON_BOX_RING_FULL     0x2
#define RADEON_BOX_FLIP          0x4
#define RADEON_BOX_WAIT_IDLE     0x8
#define RADEON_BOX_TEXTURE_LOAD  0x10



/* Register definitions, register access macros and drmAddMap constants
 * for Radeon kernel driver.
 */

#define RADEON_AGP_COMMAND		0x0f60
#define RADEON_AUX_SCISSOR_CNTL		0x26f0
#	define RADEON_EXCLUSIVE_SCISSOR_0	(1 << 24)
#	define RADEON_EXCLUSIVE_SCISSOR_1	(1 << 25)
#	define RADEON_EXCLUSIVE_SCISSOR_2	(1 << 26)
#	define RADEON_SCISSOR_0_ENABLE		(1 << 28)
#	define RADEON_SCISSOR_1_ENABLE		(1 << 29)
#	define RADEON_SCISSOR_2_ENABLE		(1 << 30)

#define RADEON_BUS_CNTL			0x0030
#	define RADEON_BUS_MASTER_DIS		(1 << 6)

#define RADEON_CLOCK_CNTL_DATA		0x000c
#	define RADEON_PLL_WR_EN			(1 << 7)
#define RADEON_CLOCK_CNTL_INDEX		0x0008
#define RADEON_CONFIG_APER_SIZE		0x0108
#define RADEON_CRTC_OFFSET		0x0224
#define RADEON_CRTC_OFFSET_CNTL		0x0228
#	define RADEON_CRTC_TILE_EN		(1 << 15)
#	define RADEON_CRTC_OFFSET_FLIP_CNTL	(1 << 16)
#define RADEON_CRTC2_OFFSET		0x0324
#define RADEON_CRTC2_OFFSET_CNTL	0x0328

#define RADEON_RB3D_COLOROFFSET		0x1c40
#define RADEON_RB3D_COLORPITCH		0x1c48

#define RADEON_DP_GUI_MASTER_CNTL	0x146c
#	define RADEON_GMC_SRC_PITCH_OFFSET_CNTL	(1 << 0)
#	define RADEON_GMC_DST_PITCH_OFFSET_CNTL	(1 << 1)
#	define RADEON_GMC_BRUSH_SOLID_COLOR	(13 << 4)
#	define RADEON_GMC_BRUSH_NONE		(15 << 4)
#	define RADEON_GMC_DST_16BPP		(4 << 8)
#	define RADEON_GMC_DST_24BPP		(5 << 8)
#	define RADEON_GMC_DST_32BPP		(6 << 8)
#	define RADEON_GMC_DST_DATATYPE_SHIFT	8
#	define RADEON_GMC_SRC_DATATYPE_COLOR	(3 << 12)
#	define RADEON_DP_SRC_SOURCE_MEMORY	(2 << 24)
#	define RADEON_DP_SRC_SOURCE_HOST_DATA	(3 << 24)
#	define RADEON_GMC_CLR_CMP_CNTL_DIS	(1 << 28)
#	define RADEON_GMC_WR_MSK_DIS		(1 << 30)
#	define RADEON_ROP3_S			0x00cc0000
#	define RADEON_ROP3_P			0x00f00000
#define RADEON_DP_WRITE_MASK		0x16cc
#define RADEON_DST_PITCH_OFFSET		0x142c
#define RADEON_DST_PITCH_OFFSET_C	0x1c80
#	define RADEON_DST_TILE_LINEAR		(0 << 30)
#	define RADEON_DST_TILE_MACRO		(1 << 30)
#	define RADEON_DST_TILE_MICRO		(2 << 30)
#	define RADEON_DST_TILE_BOTH		(3 << 30)

#define RADEON_SCRATCH_REG0		0x15e0
#define RADEON_SCRATCH_REG1		0x15e4
#define RADEON_SCRATCH_REG2		0x15e8
#define RADEON_SCRATCH_REG3		0x15ec
#define RADEON_SCRATCH_REG4		0x15f0
#define RADEON_SCRATCH_REG5		0x15f4
#define RADEON_SCRATCH_UMSK		0x0770
#define RADEON_SCRATCH_ADDR		0x0774

#define RADEON_SCRATCHOFF( x )		(RADEON_SCRATCH_REG_OFFSET + 4*(x))

#define GET_SCRATCH( x )	(dev_priv->writeback_works			\
				? DRM_READ32( dev_priv->ring_rptr, RADEON_SCRATCHOFF(x) ) \
				: RADEON_READ( RADEON_SCRATCH_REG0 + 4*(x) ) )


#define RADEON_GEN_INT_CNTL		0x0040
#	define RADEON_CRTC_VBLANK_MASK		(1 << 0)
#	define RADEON_GUI_IDLE_INT_ENABLE	(1 << 19)
#	define RADEON_SW_INT_ENABLE		(1 << 25)

#define RADEON_GEN_INT_STATUS		0x0044
#	define RADEON_CRTC_VBLANK_STAT		(1 << 0)
#	define RADEON_CRTC_VBLANK_STAT_ACK   	(1 << 0)
#	define RADEON_GUI_IDLE_INT_TEST_ACK     (1 << 19)
#	define RADEON_SW_INT_TEST		(1 << 25)
#	define RADEON_SW_INT_TEST_ACK   	(1 << 25)
#	define RADEON_SW_INT_FIRE		(1 << 26)

#define RADEON_HOST_PATH_CNTL		0x0130
#	define RADEON_HDP_SOFT_RESET		(1 << 26)
#	define RADEON_HDP_WC_TIMEOUT_MASK	(7 << 28)
#	define RADEON_HDP_WC_TIMEOUT_28BCLK	(7 << 28)