i830_drm.h
#ifndef _I830_DRM_H_
#define _I830_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.
*
* KW: Actually, you can’t ever change them because doing so would
* break backwards compatibility.
*/
#ifndef _I830_DEFINES_
#define _I830_DEFINES_
#define I830_DMA_BUF_ORDER 12
#define I830_DMA_BUF_SZ (1<
#define I830_NR_SAREA_CLIPRECTS 8
/* Each region is a minimum of 64k, and there are at most 64 of them.
*/
#define I830_NR_TEX_REGIONS 64
#define I830_LOG_MIN_TEX_REGION_SIZE 16
/* KW: These aren’t correct but someone set them to two and then
* released the module. Now we can’t change them as doing so would
* break backwards compatibility.
*/
#define I830_TEXTURE_COUNT 2
#define I830_TEXBLEND_COUNT I830_TEXTURE_COUNT
#define I830_TEXBLEND_SIZE 12 /* (4 args + op) * 2 + COLOR_FACTOR */
#define I830_UPLOAD_CTX 0×1
#define I830_UPLOAD_BUFFERS 0×2
#define I830_UPLOAD_CLIPRECTS 0×4
#define I830_UPLOAD_TEX0_IMAGE 0×100 /* handled clientside */
#define I830_UPLOAD_TEX0_CUBE 0×200 /* handled clientside */
#define I830_UPLOAD_TEX1_IMAGE 0×400 /* handled clientside */
#define I830_UPLOAD_TEX1_CUBE 0×800 /* handled clientside */
#define I830_UPLOAD_TEX2_IMAGE 0×1000 /* handled clientside */
#define I830_UPLOAD_TEX2_CUBE 0×2000 /* handled clientside */
#define I830_UPLOAD_TEX3_IMAGE 0×4000 /* handled clientside */
#define I830_UPLOAD_TEX3_CUBE 0×8000 /* handled clientside */
#define I830_UPLOAD_TEX_N_IMAGE(n) (0×100 << (n * 2))
#define I830_UPLOAD_TEX_N_CUBE(n) (0×200 << (n * 2))
#define I830_UPLOAD_TEXIMAGE_MASK 0xff00
#define I830_UPLOAD_TEX0 0×10000
#define I830_UPLOAD_TEX1 0×20000
#define I830_UPLOAD_TEX2 0×40000
#define I830_UPLOAD_TEX3 0×80000
#define I830_UPLOAD_TEX_N(n) (0×10000 << (n))
#define I830_UPLOAD_TEX_MASK 0xf0000
#define I830_UPLOAD_TEXBLEND0 0×100000
#define I830_UPLOAD_TEXBLEND1 0×200000
#define I830_UPLOAD_TEXBLEND2 0×400000
#define I830_UPLOAD_TEXBLEND3 0×800000
#define I830_UPLOAD_TEXBLEND_N(n) (0×100000 << (n))
#define I830_UPLOAD_TEXBLEND_MASK 0xf00000
#define I830_UPLOAD_TEX_PALETTE_N(n) (0×1000000 << (n))
#define I830_UPLOAD_TEX_PALETTE_SHARED 0×4000000
#define I830_UPLOAD_STIPPLE 0×8000000
/* 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 I830_DESTREG_CBUFADDR 0
#define I830_DESTREG_DBUFADDR 1
#define I830_DESTREG_DV0 2
#define I830_DESTREG_DV1 3
#define I830_DESTREG_SENABLE 4
#define I830_DESTREG_SR0 5
#define I830_DESTREG_SR1 6
#define I830_DESTREG_SR2 7
#define I830_DESTREG_DR0 8
#define I830_DESTREG_DR1 9
#define I830_DESTREG_DR2 10
#define I830_DESTREG_DR3 11
#define I830_DESTREG_DR4 12
#define I830_DEST_SETUP_SIZE 13
/* Context state
*/
#define I830_CTXREG_STATE1 0
#define I830_CTXREG_STATE2 1
#define I830_CTXREG_STATE3 2
#define I830_CTXREG_STATE4 3
#define I830_CTXREG_STATE5 4
#define I830_CTXREG_IALPHAB 5
#define I830_CTXREG_STENCILTST 6
#define I830_CTXREG_ENABLES_1 7
#define I830_CTXREG_ENABLES_2 8
#define I830_CTXREG_AA 9
#define I830_CTXREG_FOGCOLOR 10
#define I830_CTXREG_BLENDCOLR0 11
#define I830_CTXREG_BLENDCOLR 12 /* Dword 1 of 2 dword command */
#define I830_CTXREG_VF 13
#define I830_CTXREG_VF2 14
#define I830_CTXREG_MCSB0 15
#define I830_CTXREG_MCSB1 16
#define I830_CTX_SETUP_SIZE 17
/* 1.3: Stipple state
*/
#define I830_STPREG_ST0 0
#define I830_STPREG_ST1 1
#define I830_STP_SETUP_SIZE 2
/* Texture state (per tex unit)
*/
#define I830_TEXREG_MI0 0 /* GFX_OP_MAP_INFO (6 dwords) */
#define I830_TEXREG_MI1 1
#define I830_TEXREG_MI2 2
#define I830_TEXREG_MI3 3
#define I830_TEXREG_MI4 4
#define I830_TEXREG_MI5 5
#define I830_TEXREG_MF 6 /* GFX_OP_MAP_FILTER */
#define I830_TEXREG_MLC 7 /* GFX_OP_MAP_LOD_CTL */
#define I830_TEXREG_MLL 8 /* GFX_OP_MAP_LOD_LIMITS */
#define I830_TEXREG_MCS 9 /* GFX_OP_MAP_COORD_SETS */
#define I830_TEX_SETUP_SIZE 10
#define I830_TEXREG_TM0LI 0 /* load immediate 2 texture map n */
#define I830_TEXREG_TM0S0 1
#define I830_TEXREG_TM0S1 2
#define I830_TEXREG_TM0S2 3
#define I830_TEXREG_TM0S3 4
#define I830_TEXREG_TM0S4 5
#define I830_TEXREG_NOP0 6 /* noop */
#define I830_TEXREG_NOP1 7 /* noop */
#define I830_TEXREG_NOP2 8 /* noop */
#define __I830_TEXREG_MCS 9 /* GFX_OP_MAP_COORD_SETS — shared */
#define __I830_TEX_SETUP_SIZE 10
#define I830_FRONT 0×1
#define I830_BACK 0×2
#define I830_DEPTH 0×4
#endif /* _I830_DEFINES_ */
typedef struct _drm_i830_init {
enum {
I830_INIT_DMA = 0×01,
I830_CLEANUP_DMA = 0×02
} func;
unsigned int mmio_offset;
unsigned int buffers_offset;
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;
unsigned int back_pitch;
unsigned int depth_pitch;
unsigned int cpp;
} drm_i830_init_t;
/* Warning: If you change the SAREA structure you must change the Xserver
* structure as well */
typedef struct _drm_i830_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_i830_tex_region_t;
typedef struct _drm_i830_sarea {
unsigned int ContextState[I830_CTX_SETUP_SIZE];
unsigned int BufferState[I830_DEST_SETUP_SIZE];
unsigned int TexState[I830_TEXTURE_COUNT][I830_TEX_SETUP_SIZE];
unsigned int TexBlendState[I830_TEXBLEND_COUNT][I830_TEXBLEND_SIZE];
unsigned int TexBlendStateWordsUsed[I830_TEXBLEND_COUNT];
unsigned int Palette[2][256];
unsigned int dirty;
unsigned int nbox;
struct drm_clip_rect boxes[I830_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_i830_tex_region_t texList[I830_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? */
int perf_boxes; /* performance boxes to be displayed */
/* Here’s the state for texunits 2,3:
*/
unsigned int TexState2[I830_TEX_SETUP_SIZE];
unsigned int TexBlendState2[I830_TEXBLEND_SIZE];
unsigned int TexBlendStateWordsUsed2;
unsigned int TexState3[I830_TEX_SETUP_SIZE];
unsigned int TexBlendState3[I830_TEXBLEND_SIZE];
unsigned int TexBlendStateWordsUsed3;
unsigned int StippleState[I830_STP_SETUP_SIZE];
} drm_i830_sarea_t;
/* Flags for perf_boxes
*/
#define I830_BOX_RING_EMPTY 0×1 /* populated by kernel */
#define I830_BOX_FLIP 0×2 /* populated by kernel */
#define I830_BOX_WAIT 0×4 /* populated by kernel & client */
#define I830_BOX_TEXTURE_LOAD 0×8 /* populated by kernel */
#define I830_BOX_LOST_CONTEXT 0×10 /* populated by client */
/* I830 specific ioctls
* The device specific ioctl range is 0×40 to 0×79.
*/
#define DRM_I830_INIT 0×00
#define DRM_I830_VERTEX 0×01
#define DRM_I830_CLEAR 0×02
#define DRM_I830_FLUSH 0×03
#define DRM_I830_GETAGE 0×04
#define DRM_I830_GETBUF 0×05
#define DRM_I830_SWAP 0×06
#define DRM_I830_COPY 0×07
#define DRM_I830_DOCOPY 0×08
#define DRM_I830_FLIP 0×09
#define DRM_I830_IRQ_EMIT 0×0a
#define DRM_I830_IRQ_WAIT 0×0b
#define DRM_I830_GETPARAM 0×0c
#define DRM_I830_SETPARAM 0×0d
#define DRM_IOCTL_I830_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_IOCTL_I830_INIT, drm_i830_init_t)
#define DRM_IOCTL_I830_VERTEX DRM_IOW( DRM_COMMAND_BASE + DRM_IOCTL_I830_VERTEX, drm_i830_vertex_t)
#define DRM_IOCTL_I830_CLEAR DRM_IOW( DRM_COMMAND_BASE + DRM_IOCTL_I830_CLEAR, drm_i830_clear_t)
#define DRM_IOCTL_I830_FLUSH DRM_IO ( DRM_COMMAND_BASE + DRM_IOCTL_I830_FLUSH)
#define DRM_IOCTL_I830_GETAGE DRM_IO ( DRM_COMMAND_BASE + DRM_IOCTL_I830_GETAGE)
#define DRM_IOCTL_I830_GETBUF DRM_IOWR(DRM_COMMAND_BASE + DRM_IOCTL_I830_GETBUF, drm_i830_dma_t)
#define DRM_IOCTL_I830_SWAP DRM_IO ( DRM_COMMAND_BASE + DRM_IOCTL_I830_SWAP)
#define DRM_IOCTL_I830_COPY DRM_IOW( DRM_COMMAND_BASE + DRM_IOCTL_I830_COPY, drm_i830_copy_t)
#define DRM_IOCTL_I830_DOCOPY DRM_IO ( DRM_COMMAND_BASE + DRM_IOCTL_I830_DOCOPY)
#define DRM_IOCTL_I830_FLIP DRM_IO ( DRM_COMMAND_BASE + DRM_IOCTL_I830_FLIP)
#define DRM_IOCTL_I830_IRQ_EMIT DRM_IOWR(DRM_COMMAND_BASE + DRM_IOCTL_I830_IRQ_EMIT, drm_i830_irq_emit_t)
#define DRM_IOCTL_I830_IRQ_WAIT DRM_IOW( DRM_COMMAND_BASE + DRM_IOCTL_I830_IRQ_WAIT, drm_i830_irq_wait_t)
#define DRM_IOCTL_I830_GETPARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_IOCTL_I830_GETPARAM, drm_i830_getparam_t)
#define DRM_IOCTL_I830_SETPARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_IOCTL_I830_SETPARAM, drm_i830_setparam_t)
typedef struct _drm_i830_clear {
int clear_color;
int clear_depth;
int flags;
unsigned int clear_colormask;
unsigned int clear_depthmask;
} drm_i830_clear_t;
/* These may be placeholders if we have more cliprects than
* I830_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_i830_vertex {
int idx; /* buffer index */
int used; /* nr bytes in use */
int discard; /* client is finished with the buffer? */
} drm_i830_vertex_t;
typedef struct _drm_i830_copy_t {
int idx; /* buffer index */
int used; /* nr bytes in use */
void __user *address; /* Address to copy from */
} drm_i830_copy_t;
typedef struct drm_i830_dma {
void __user *virtual;
int request_idx;
int request_size;
int granted;
} drm_i830_dma_t;
/* 1.3: Userspace can request & wait on irq’s:
*/
typedef struct drm_i830_irq_emit {
int __user *irq_seq;
} drm_i830_irq_emit_t;
typedef struct drm_i830_irq_wait {
int irq_seq;
} drm_i830_irq_wait_t;
/* 1.3: New ioctl to query kernel params:
*/
#define I830_PARAM_IRQ_ACTIVE 1
typedef struct drm_i830_getparam {
int param;
int __user *value;
} drm_i830_getparam_t;
/* 1.3: New ioctl to set kernel params:
*/
#define I830_SETPARAM_USE_MI_BATCHBUFFER_START 1
typedef struct drm_i830_setparam {
int param;
int value;
} drm_i830_setparam_t;
#endif /* _I830_DRM_H_ */
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