mirror of
https://gitlab.freedesktop.org/mesa/drm.git
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142 lines
3.5 KiB
C
142 lines
3.5 KiB
C
#ifndef MGA_DMA_H
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#define MGA_DMA_H
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#include "mga_drm_public.h"
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/* Isn't this fun. This has to be fixed asap by emitting primary
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* dma commands in the 'do_dma' ioctl.
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*/
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typedef struct {
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int dma_type;
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unsigned int ContextState[MGA_CTX_SETUP_SIZE];
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unsigned int ServerState[MGA_2D_SETUP_SIZE];
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unsigned int TexState[2][MGA_TEX_SETUP_SIZE];
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unsigned int WarpPipe;
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unsigned int dirty;
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unsigned int nbox;
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xf86drmClipRectRec boxes[MGA_NR_SAREA_CLIPRECTS];
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} drm_mga_buf_priv_t;
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#define MGA_DMA_GENERAL 0
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#define MGA_DMA_VERTEX 1
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#define MGA_DMA_SETUP 2
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#define MGA_DMA_ILOAD 3
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#define DWGREG0 0x1c00
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#define DWGREG0_END 0x1dff
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#define DWGREG1 0x2c00
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#define DWGREG1_END 0x2dff
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#define ISREG0(r) (r >= DWGREG0 && r <= DWGREG0_END)
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#define ADRINDEX0(r) (u8)((r - DWGREG0) >> 2)
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#define ADRINDEX1(r) (u8)(((r - DWGREG1) >> 2) | 0x80)
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#define ADRINDEX(r) (ISREG0(r) ? ADRINDEX0(r) : ADRINDEX1(r))
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/* Macros for inserting commands into a secondary dma buffer.
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*/
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#define VERBO 1
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#define DMALOCALS u8 tempIndex[4]; u32 *dma_ptr; \
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int outcount, num_dwords;
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#define DMAGETPTR(buf) do { \
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dma_ptr = (u32 *)((u8 *)buf->address + buf->used); \
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outcount = 0; \
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num_dwords = buf->used / 4; \
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if (VERBO) \
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printk(KERN_INFO "DMAGETPTR in %s, start %d\n", \
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__FUNCTION__, num_dwords); \
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} while(0)
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#define DMAADVANCE(buf) do { \
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if (VERBO) \
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printk(KERN_INFO "DMAADVANCE\n"); \
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buf->used = num_dwords * 4; \
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} while(0)
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#define DMAOUTREG(reg, val) do { \
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tempIndex[outcount]=ADRINDEX(reg); \
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dma_ptr[++outcount] = val; \
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if (VERBO) \
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printk(KERN_INFO \
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" DMAOUT %d: 0x%x -- 0x%x\n", \
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num_dwords +1+outcount, ADRINDEX(reg), val); \
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if (outcount == 4) { \
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outcount = 0; \
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dma_ptr[0] = *(u32 *)tempIndex; \
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dma_ptr+=5; \
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num_dwords += 5; \
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} \
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}while (0)
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/* Primary buffer versions of above -- pretty similar really.
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*/
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#define PRIMLOCALS u8 tempIndex[4]; u32 *dma_ptr; u32 phys_head; \
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int outcount, num_dwords
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#define PRIMRESET(dev_priv) do { \
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dev_priv->prim_num_dwords = 0; \
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dev_priv->current_dma_ptr = dev_priv->prim_head; \
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} while (0)
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#define PRIMGETPTR(dev_priv) do { \
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dma_ptr = dev_priv->current_dma_ptr; \
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phys_head = dev_priv->prim_phys_head; \
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num_dwords = dev_priv->prim_num_dwords; \
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outcount = 0; \
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if (VERBO) \
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printk(KERN_INFO "PRIMGETPTR in %s, start %d\n", \
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__FUNCTION__, num_dwords); \
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} while (0)
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#define PRIMADVANCEPAD(dev_priv) do { \
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while(outcount & 3) { \
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if (VERBO) \
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printk(KERN_INFO "PAD %d\n", \
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num_dwords + 1 + outcount); \
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tempIndex[outcount++]=0x15; \
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} \
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\
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if (VERBO) \
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printk(KERN_INFO "PRIMADVANCEPAD\n"); \
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dev_priv->prim_num_dwords = num_dwords; \
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dev_priv->current_dma_ptr = dma_ptr; \
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} while (0)
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#define PRIMADVANCE(dev_priv) do { \
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if (VERBO) \
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printk(KERN_INFO "PRIMADVANCE\n"); \
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dev_priv->prim_num_dwords = num_dwords; \
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dev_priv->current_dma_ptr = dma_ptr; \
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} while (0)
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#define PRIMOUTREG(reg, val) do { \
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tempIndex[outcount]=ADRINDEX(reg); \
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dma_ptr[1+outcount] = val; \
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if (VERBO) \
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printk(KERN_INFO \
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" PRIMOUT %d: 0x%x -- 0x%x\n", \
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num_dwords + 1 + outcount, ADRINDEX(reg), val); \
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if( ++outcount == 4) { \
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outcount = 0; \
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dma_ptr[0] = *(u32 *)tempIndex; \
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dma_ptr+=5; \
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num_dwords += 5; \
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} \
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}while (0)
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#endif
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