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path: root/bsd-core/drm_pci.c
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2008-09-10Remove incomplete and obsolete free/net/open code.vehemens
Signed-off-by: Robert Noland <rnoland@2hip.net>
2008-09-06[FreeBSD] Ensure that drm_pci_alloc is never called while locks are held.Robert Noland
2008-07-15[FreeBSD] We aren't allowed to hold locks over bus_dma_tag_create or ↵Robert Noland
bus_dmamem_alloc.
2008-05-27[FreeBSD] Convert from drm_device_t to struct drm_device for consistency.Eric Anholt
2007-08-15BSD: Replace brief description in each file's first line with doxygen later on.Eric Anholt
The brief descriptions usually had the wrong filename in them.
2005-08-26- Don't try to allocate mappings of less than a PAGE_SIZE in MGA DMA code.Eric Anholt
- Comment out the "is this mapping/bufs in allocated AGP" bits in BSD because they break mga (which uses AGP allocation that doesn't track entries). It's not a security issue when we still have the related ioctls marked root-only. - Apply some power-of-two alignment restrictions to hopefully avoid some panicing in bad cases of drm_pci_alloc() on FreeBSD. - Add verbosity to some error handling that I found useful while debugging.
2005-04-26Convert BSD code to mostly use bus_dma, the dma abstraction for dealingEric Anholt
with IOMMUs and such. There is one usage of the forbidden vtophys() left in drm_scatter.c which will be fixed up soon. This required a KPI change for drm_pci_alloc/free() to return/use a drm_dma_handle_t that keeps track of os-specific bits, rather than just passing around the vaddr/busaddr/size. Submitted by: Tonnerre Lombard (partially) Tested on: FreeBSD: Rage128 AGP/PCI Linux: Savage4 AGP/PCI
2005-04-16Use /*- to begin license blocks in BSD code to reduce diffs against FreeBSDEric Anholt
CVS.
2004-11-07Now that the memory debug code is gone, and all 3 BSDs have M_ZERO, stopEric Anholt
using drm_alloc/drm_free in the core and instead use plain malloc/free.
2004-11-06Commit WIP of BSD conversion to core model. Compiles for r128, radeon, butEric Anholt
doesn't run yet. Moves the ioctl definitions for these two drivers back to the shared code -- they aren't OS-specific.
2003-10-19- SMPng lock the DRM. This is only partial -- there are a few code pathsEric Anholt
used by root (the X Server) which are not locked. However, it should deal with lost-IRQ issues on -current which I think people have been experiencing but I am unable to reproduce (though I understand why they would occur, because of a bug of mine). Note that most of the locking (DRM_LOCK()/UNLOCK()) is all covered by Giant still, so it doesn't matter yet. - Remove locking on FreeBSD-stable and NetBSD. These are covered by the fact that there is no reentrancy of the kernel except by interrupts, which are locked using spldrm()/splx() instead.
2003-04-26Add PCI DMA memory functions and make addbufs_pci and associated code useEric Anholt
it. To do this we need to save the bus address along with the virtual address in the seglist. Also fix some error handling and a few bits of whitespace.
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#ifndef _I810_DRM_H_
#define _I810_DRM_H_

/* WARNING: These defines must be the same as what the Xserver uses.
 * if you change them, you must change the defines in the Xserver.
 */

#ifndef _I810_DEFINES_
#define _I810_DEFINES_

#define I810_DMA_BUF_ORDER		12
#define I810_DMA_BUF_SZ 		(1<<I810_DMA_BUF_ORDER)
#define I810_DMA_BUF_NR 		256
#define I810_NR_SAREA_CLIPRECTS 	8

/* Each region is a minimum of 64k, and there are at most 64 of them.
 */
#define I810_NR_TEX_REGIONS 64
#define I810_LOG_MIN_TEX_REGION_SIZE 16
#endif

#define I810_UPLOAD_TEX0IMAGE  0x1	/* handled clientside */
#define I810_UPLOAD_TEX1IMAGE  0x2	/* handled clientside */
#define I810_UPLOAD_CTX        0x4
#define I810_UPLOAD_BUFFERS    0x8
#define I810_UPLOAD_TEX0       0x10
#define I810_UPLOAD_TEX1       0x20
#define I810_UPLOAD_CLIPRECTS  0x40

/* Indices into buf.Setup where various bits of state are mirrored per
 * context and per buffer.  These can be fired at the card as a unit,
 * or in a piecewise fashion as required.
 */

/* Destbuffer state
 *    - backbuffer linear offset and pitch -- invarient in the current dri
 *    - zbuffer linear offset and pitch -- also invarient
 *    - drawing origin in back and depth buffers.
 *
 * Keep the depth/back buffer state here to accommodate private buffers
 * in the future.
 */
#define I810_DESTREG_DI0  0	/* CMD_OP_DESTBUFFER_INFO (2 dwords) */
#define I810_DESTREG_DI1  1
#define I810_DESTREG_DV0  2	/* GFX_OP_DESTBUFFER_VARS (2 dwords) */
#define I810_DESTREG_DV1  3
#define I810_DESTREG_DR0  4	/* GFX_OP_DRAWRECT_INFO (4 dwords) */
#define I810_DESTREG_DR1  5
#define I810_DESTREG_DR2  6
#define I810_DESTREG_DR3  7
#define I810_DESTREG_DR4  8
#define I810_DEST_SETUP_SIZE 10

/* Context state
 */
#define I810_CTXREG_CF0   0	/* GFX_OP_COLOR_FACTOR */
#define I810_CTXREG_CF1   1
#define I810_CTXREG_ST0   2	/* GFX_OP_STIPPLE */
#define I810_CTXREG_ST1   3
#define I810_CTXREG_VF    4	/* GFX_OP_VERTEX_FMT */
#define I810_CTXREG_MT    5	/* GFX_OP_MAP_TEXELS */
#define I810_CTXREG_MC0   6	/* GFX_OP_MAP_COLOR_STAGES - stage 0 */
#define I810_CTXREG_MC1   7	/* GFX_OP_MAP_COLOR_STAGES - stage 1 */
#define I810_CTXREG_MC2   8	/* GFX_OP_MAP_COLOR_STAGES - stage 2 */
#define I810_CTXREG_MA0   9	/* GFX_OP_MAP_ALPHA_STAGES - stage 0 */
#define I810_CTXREG_MA1   10	/* GFX_OP_MAP_ALPHA_STAGES - stage 1 */
#define I810_CTXREG_MA2   11	/* GFX_OP_MAP_ALPHA_STAGES - stage 2 */
#define I810_CTXREG_SDM   12	/* GFX_OP_SRC_DEST_MONO */
#define I810_CTXREG_FOG   13	/* GFX_OP_FOG_COLOR */
#define I810_CTXREG_B1    14	/* GFX_OP_BOOL_1 */
#define I810_CTXREG_B2    15	/* GFX_OP_BOOL_2 */
#define I810_CTXREG_LCS   16	/* GFX_OP_LINEWIDTH_CULL_SHADE_MODE */
#define I810_CTXREG_PV    17	/* GFX_OP_PV_RULE -- Invarient! */
#define I810_CTXREG_ZA    18	/* GFX_OP_ZBIAS_ALPHAFUNC */
#define I810_CTXREG_AA    19	/* GFX_OP_ANTIALIAS */
#define I810_CTX_SETUP_SIZE 20

/* Texture state (per tex unit)
 */
#define I810_TEXREG_MI0  0	/* GFX_OP_MAP_INFO (4 dwords) */
#define I810_TEXREG_MI1  1
#define I810_TEXREG_MI2  2
#define I810_TEXREG_MI3  3
#define I810_TEXREG_MF   4	/* GFX_OP_MAP_FILTER */
#define I810_TEXREG_MLC  5	/* GFX_OP_MAP_LOD_CTL */
#define I810_TEXREG_MLL  6	/* GFX_OP_MAP_LOD_LIMITS */
#define I810_TEXREG_MCS  7	/* GFX_OP_MAP_COORD_SETS ??? */
#define I810_TEX_SETUP_SIZE 8

/* Flags for clear ioctl
 */
#define I810_FRONT   0x1
#define I810_BACK    0x2
#define I810_DEPTH   0x4

typedef enum _drm_i810_init_func {
	I810_INIT_DMA = 0x01,
	I810_CLEANUP_DMA = 0x02,
	I810_INIT_DMA_1_4 = 0x03
} drm_i810_init_func_t;

/* This is the init structure after v1.2 */
typedef struct _drm_i810_init {
	drm_i810_init_func_t func;
#if CONFIG_XFREE86_VERSION < XFREE86_VERSION(4,1,0,0)
	int ring_map_idx;
	int buffer_map_idx;
#else
	unsigned int mmio_offset;
	unsigned int buffers_offset;
#endif
	int sarea_priv_offset;
	unsigned int ring_start;
	unsigned int ring_end;
	unsigned int ring_size;
	unsigned int front_offset;
	unsigned int back_offset;
	unsigned int depth_offset;
	unsigned int overlay_offset;
	unsigned int overlay_physical;
	unsigned int w;
	unsigned int h;
	unsigned int pitch;
	unsigned int pitch_bits;
} drm_i810_init_t;

/* This is the init structure prior to v1.2 */
typedef struct _drm_i810_pre12_init {
	drm_i810_init_func_t func;
#if CONFIG_XFREE86_VERSION < XFREE86_VERSION(4,1,0,0)
	int ring_map_idx;
	int buffer_map_idx;
#else
	unsigned int mmio_offset;
	unsigned int buffers_offset;
#endif
	int sarea_priv_offset;
	unsigned int ring_start;
	unsigned int ring_end;
	unsigned int ring_size;
	unsigned int front_offset;
	unsigned int back_offset;
	unsigned int depth_offset;
	unsigned int w;
	unsigned int h;
	unsigned int pitch;
	unsigned int pitch_bits;
} drm_i810_pre12_init_t;

/* Warning: If you change the SAREA structure you must change the Xserver
 * structure as well */

typedef struct _drm_i810_tex_region {
	unsigned char next, prev;	/* indices to form a circular LRU  */
	unsigned char in_use;	/* owned by a client, or free? */
	int age;		/* tracked by clients to update local LRU's */
} drm_i810_tex_region_t;

typedef struct _drm_i810_sarea {
	unsigned int ContextState[I810_CTX_SETUP_SIZE];
	unsigned int BufferState[I810_DEST_SETUP_SIZE];
	unsigned int TexState[2][I810_TEX_SETUP_SIZE];
	unsigned int dirty;

	unsigned int nbox;
	drm_clip_rect_t boxes[I810_NR_SAREA_CLIPRECTS];

	/* Maintain an LRU of contiguous regions of texture space.  If
	 * you think you own a region of texture memory, and it has an
	 * age different to the one you set, then you are mistaken and
	 * it has been stolen by another client.  If global texAge
	 * hasn't changed, there is no need to walk the list.
	 *
	 * These regions can be used as a proxy for the fine-grained
	 * texture information of other clients - by maintaining them
	 * in the same lru which is used to age their own textures,
	 * clients have an approximate lru for the whole of global
	 * texture space, and can make informed decisions as to which
	 * areas to kick out.  There is no need to choose whether to
	 * kick out your own texture or someone else's - simply eject
	 * them all in LRU order.
	 */

	drm_i810_tex_region_t texList[I810_NR_TEX_REGIONS + 1];
	/* Last elt is sentinal */
	int texAge;		/* last time texture was uploaded */
	int last_enqueue;	/* last time a buffer was enqueued */
	int last_dispatch;	/* age of the most recently dispatched buffer */
	int last_quiescent;	/*  */
	int ctxOwner;		/* last context to upload state */

	int vertex_prim;

	int pf_enabled;		/* is pageflipping allowed? */
	int pf_active;
	int pf_current_page;	/* which buffer is being displayed? */
} drm_i810_sarea_t;

/* WARNING: If you change any of these defines, make sure to change the
 * defines in the Xserver file (xf86drmMga.h)
 */

/* i810 specific ioctls
 * The device specific ioctl range is 0x40 to 0x79.
 */
#define DRM_I810_INIT		0x00
#define DRM_I810_VERTEX		0x01
#define DRM_I810_CLEAR		0x02
#define DRM_I810_FLUSH		0x03
#define DRM_I810_GETAGE		0x04
#define DRM_I810_GETBUF		0x05
#define DRM_I810_SWAP		0x06
#define DRM_I810_COPY		0x07
#define DRM_I810_DOCOPY		0x08
#define DRM_I810_OV0INFO	0x09
#define DRM_I810_FSTATUS	0x0a
#define DRM_I810_OV0FLIP	0x0b
#define DRM_I810_MC		0x0c
#define DRM_I810_RSTATUS	0x0d
#define DRM_I810_FLIP		0x0e

#define DRM_IOCTL_I810_INIT		DRM_IOW( DRM_COMMAND_BASE + DRM_I810_INIT, drm_i810_init_t)
#define DRM_IOCTL_I810_VERTEX		DRM_IOW( DRM_COMMAND_BASE + DRM_I810_VERTEX, drm_i810_vertex_t)
#define DRM_IOCTL_I810_CLEAR		DRM_IOW( DRM_COMMAND_BASE + DRM_I810_CLEAR, drm_i810_clear_t)
#define DRM_IOCTL_I810_FLUSH		DRM_IO(  DRM_COMMAND_BASE + DRM_I810_FLUSH)
#define DRM_IOCTL_I810_GETAGE		DRM_IO(  DRM_COMMAND_BASE + DRM_I810_GETAGE)
#define DRM_IOCTL_I810_GETBUF		DRM_IOWR(DRM_COMMAND_BASE + DRM_I810_GETBUF, drm_i810_dma_t)
#define DRM_IOCTL_I810_SWAP		DRM_IO(  DRM_COMMAND_BASE + DRM_I810_SWAP)
#define DRM_IOCTL_I810_COPY		DRM_IOW( DRM_COMMAND_BASE + DRM_I810_COPY, drm_i810_copy_t)
#define DRM_IOCTL_I810_DOCOPY		DRM_IO(  DRM_COMMAND_BASE + DRM_I810_DOCOPY)
#define DRM_IOCTL_I810_OV0INFO		DRM_IOR( DRM_COMMAND_BASE + DRM_I810_OV0INFO, drm_i810_overlay_t)
#define DRM_IOCTL_I810_FSTATUS		DRM_IO ( DRM_COMMAND_BASE + DRM_I810_FSTATUS)
#define DRM_IOCTL_I810_OV0FLIP		DRM_IO ( DRM_COMMAND_BASE + DRM_I810_OV0FLIP)
#define DRM_IOCTL_I810_MC		DRM_IOW( DRM_COMMAND_BASE + DRM_I810_MC, drm_i810_mc_t)
#define DRM_IOCTL_I810_RSTATUS		DRM_IO ( DRM_COMMAND_BASE + DRM_I810_RSTATUS)
#define DRM_IOCTL_I810_FLIP             DRM_IO ( DRM_COMMAND_BASE + DRM_I810_FLIP)

typedef struct _drm_i810_clear {
	int clear_color;
	int clear_depth;
	int flags;
} drm_i810_clear_t;

/* These may be placeholders if we have more cliprects than
 * I810_NR_SAREA_CLIPRECTS.  In that case, the client sets discard to
 * false, indicating that the buffer will be dispatched again with a
 * new set of cliprects.
 */
typedef struct _drm_i810_vertex {
	int idx;		/* buffer index */
	int used;		/* nr bytes in use */
	int discard;		/* client is finished with the buffer? */
} drm_i810_vertex_t;

typedef struct _drm_i810_copy_t {
	int idx;		/* buffer index */
	int used;		/* nr bytes in use */
	void *address;		/* Address to copy from */
} drm_i810_copy_t;

#define PR_TRIANGLES         (0x0<<18)
#define PR_TRISTRIP_0        (0x1<<18)
#define PR_TRISTRIP_1        (0x2<<18)
#define PR_TRIFAN            (0x3<<18)
#define PR_POLYGON           (0x4<<18)
#define PR_LINES             (0x5<<18)
#define PR_LINESTRIP         (0x6<<18)
#define PR_RECTS             (0x7<<18)
#define PR_MASK              (0x7<<18)

typedef struct drm_i810_dma {
	void *virtual;
	int request_idx;
	int request_size;
	int granted;
} drm_i810_dma_t;

typedef struct _drm_i810_overlay_t {
	unsigned int offset;	/* Address of the Overlay Regs */
	unsigned int physical;
} drm_i810_overlay_t;

typedef struct _drm_i810_mc {
	int idx;		/* buffer index */
	int used;		/* nr bytes in use */
	int num_blocks;		/* number of GFXBlocks */
	int *length;		/* List of lengths for GFXBlocks (FUTURE) */
	unsigned int last_render;	/* Last Render Request */
} drm_i810_mc_t;

#endif				/* _I810_DRM_H_ */