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#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 short clear_color;
unsigned short clear_zval;
unsigned int clear_flags;
unsigned int vertex_real_idx;
unsigned int nbox;
xf86drmClipRectRec boxes[MGA_NR_SAREA_CLIPRECTS];
} drm_mga_buf_priv_t;
#define MGA_DMA_GENERAL 0 /* not used */
#define MGA_DMA_VERTEX 1
#define MGA_DMA_SETUP 2
#define MGA_DMA_ILOAD 3
#define MGA_DMA_CLEAR 4 /* placeholder */
#define MGA_DMA_SWAP 5 /* placeholder */
#define MGA_DMA_DISCARD 6
#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 VERBO 1
#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; \
if (VERBO) \
printk(KERN_INFO "DMAGETPTR in %s, start %d\n", \
__FUNCTION__, num_dwords); \
} while(0)
#define DMAADVANCE(buf) do { \
if (VERBO) \
printk(KERN_INFO "DMAADVANCE\n"); \
buf->used = num_dwords * 4; \
} while(0)
#define DMAOUTREG(reg, val) do { \
tempIndex[outcount]=ADRINDEX(reg); \
dma_ptr[++outcount] = val; \
if (VERBO) \
printk(KERN_INFO \
" DMAOUT %d: 0x%x -- 0x%x\n", \
num_dwords +1+outcount, ADRINDEX(reg), val); \
if (outcount == 4) { \
outcount = 0; \
dma_ptr[0] = *(u32 *)tempIndex; \
dma_ptr+=5; \
num_dwords += 5; \
} \
}while (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; \
if (VERBO) \
printk(KERN_INFO "PRIMGETPTR in %s, start %d\n", \
__FUNCTION__, num_dwords); \
} while (0)
#define PRIMADVANCEPAD(dev_priv) do { \
while(outcount & 3) { \
if (VERBO) \
printk(KERN_INFO "PAD %d\n", \
num_dwords + 1 + outcount); \
tempIndex[outcount++]=0x15; \
} \
\
if (VERBO) \
printk(KERN_INFO "PRIMADVANCEPAD\n"); \
dev_priv->prim_num_dwords = num_dwords; \
dev_priv->current_dma_ptr = dma_ptr; \
} while (0)
#define PRIMADVANCE(dev_priv) do { \
if (VERBO) { \
printk(KERN_INFO "PRIMADVANCE\n"); \
if (outcount & 3) \
printk(KERN_INFO " --- truncation\n"); \
} \
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 (VERBO) \
printk(KERN_INFO \
" PRIMOUT %d: 0x%x -- 0x%x\n", \
num_dwords + 1 + outcount, ADRINDEX(reg), val); \
if( ++outcount == 4) { \
outcount = 0; \
dma_ptr[0] = *(u32 *)tempIndex; \
dma_ptr+=5; \
num_dwords += 5; \
} \
}while (0)
#define MGA_CLEAR_CMD (DC_opcod_trap | DC_arzero_enable | \
DC_sgnzero_enable | DC_shftzero_enable | \
(0xC << DC_bop_SHIFT) | DC_clipdis_enable | \
DC_solid_enable | DC_transc_enable)
#define MGA_COPY_CMD (DC_opcod_bitblt | DC_atype_rpl | DC_linear_xy | \
DC_solid_disable | DC_arzero_disable | \
DC_sgnzero_enable | DC_shftzero_enable | \
(0xC << DC_bop_SHIFT) | DC_bltmod_bfcol | \
DC_pattern_disable | DC_transc_disable | \
DC_clipdis_enable) \
#define MGA_ILOAD_CMD (DC_opcod_iload | DC_atype_rpl | \
DC_linear_linear | DC_bltmod_bfcol | \
(0xC << DC_bop_SHIFT) | DC_sgnzero_enable | \
DC_shftzero_enable | DC_clipdis_enable)
#endif
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