blob: 7f1c57957c273837c08230edc0b6ff22c31cbb5c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
#ifndef MGA_DMA_H
#define MGA_DMA_H
#include "mga_drm_public.h"
/* Isn't this fun. This has to be fixed asap by emitting primary
* dma commands in the 'do_dma' ioctl.
*/
typedef struct {
int dma_type;
unsigned int ContextState[MGA_CTX_SETUP_SIZE];
unsigned int ServerState[MGA_2D_SETUP_SIZE];
unsigned int TexState[2][MGA_TEX_SETUP_SIZE];
unsigned int WarpPipe;
unsigned int dirty;
unsigned int nbox;
xf86drmClipRectRec boxes[MGA_NR_SAREA_CLIPRECTS];
} drm_mga_buf_priv_t;
#define MGA_DMA_GENERAL 0
#define MGA_DMA_VERTEX 1
#define MGA_DMA_SETUP 2
#define MGA_DMA_ILOAD 3
#define DWGREG0 0x1c00
#define DWGREG0_END 0x1dff
#define DWGREG1 0x2c00
#define DWGREG1_END 0x2dff
#define ISREG0(r) (r >= DWGREG0 && r <= DWGREG0_END)
#define ADRINDEX0(r) (u8)((r - DWGREG0) >> 2)
#define ADRINDEX1(r) (u8)(((r - DWGREG1) >> 2) | 0x80)
#define ADRINDEX(r) (ISREG0(r) ? ADRINDEX0(r) : ADRINDEX1(r))
/* Macros for inserting commands into a secondary dma buffer.
*/
#define DMALOCALS u8 tempIndex[4]; u32 *dma_ptr; \
int outcount, num_dwords;
#define DMAGETPTR(buf) do { \
dma_ptr = (u32 *)((u8 *)buf->address + buf->used); \
outcount = 0; \
num_dwords = buf->used / 4; \
} while(0)
#define DMAADVANCE(buf) do { \
buf->used = num_dwords * 4; \
} while(0)
#define DMAOUTREG(reg, val) do { \
tempIndex[outcount]=ADRINDEX(reg); \
dma_ptr[++outcount] = val; \
if (outcount == 4) { \
outcount = 0; \
dma_ptr[0] = *(u32 *)tempIndex; \
dma_ptr+=5; \
num_dwords += 5; \
} \
}while (0)
#define VERBO 0
/* Primary buffer versions of above -- pretty similar really.
*/
#define PRIMLOCALS u8 tempIndex[4]; u32 *dma_ptr; u32 phys_head; \
int outcount, num_dwords
#define PRIMRESET(dev_priv) do { \
dev_priv->prim_num_dwords = 0; \
dev_priv->current_dma_ptr = dev_priv->prim_head; \
} while (0)
#define PRIMGETPTR(dev_priv) do { \
dma_ptr = dev_priv->current_dma_ptr; \
phys_head = dev_priv->prim_phys_head; \
num_dwords = dev_priv->prim_num_dwords; \
outcount = 0; \
} while (0)
#define PRIMADVANCE(dev_priv) do { \
dev_priv->prim_num_dwords = num_dwords; \
dev_priv->current_dma_ptr = dma_ptr; \
} while (0)
#define PRIMOUTREG(reg, val) do { \
tempIndex[outcount]=ADRINDEX(reg); \
dma_ptr[1+outcount] = val; \
if( ++outcount == 4) { \
outcount = 0; \
dma_ptr[0] = *(u32 *)tempIndex; \
dma_ptr+=5; \
num_dwords += 5; \
} \
if (VERBO) \
printk(KERN_INFO \
"OUT %x val %x dma_ptr %p nr_dwords %d\n", \
outcount, ADRINDEX(reg), dma_ptr, \
num_dwords); \
}while (0)
#endif
|
