diff options
Diffstat (limited to 'xc/lib/GL/mesa/src/drv/i810/i810ioctl.c')
| -rw-r--r-- | xc/lib/GL/mesa/src/drv/i810/i810ioctl.c | 477 |
1 files changed, 477 insertions, 0 deletions
diff --git a/xc/lib/GL/mesa/src/drv/i810/i810ioctl.c b/xc/lib/GL/mesa/src/drv/i810/i810ioctl.c new file mode 100644 index 000000000..b4e86cff2 --- /dev/null +++ b/xc/lib/GL/mesa/src/drv/i810/i810ioctl.c @@ -0,0 +1,477 @@ +#include <stdio.h> +#include <unistd.h> + + +#include "types.h" +#include "pb.h" +#include "dd.h" + +#include "mm.h" +#include "i810context.h" +#include "i810log.h" +#include "i810ioctl.h" + +#include "drm.h" +#include <sys/ioctl.h> + +static drmBufPtr i810_get_buffer_ioctl( i810ContextPtr imesa ) +{ + drm_i810_dma_t dma; + drmBufPtr buf; + int retcode; + + if (I810_DEBUG&DEBUG_VERBOSE_IOCTL) + fprintf(stderr, "Getting dma buffer\n"); + + while (1) { + retcode = ioctl(imesa->driFd, DRM_IOCTL_I810_GETBUF, &dma); + + if (dma.granted == 1 && retcode == 0) + break; + + if (I810_DEBUG&DEBUG_VERBOSE_IOCTL) + fprintf(stderr, "Retcode : %d, granted : %d\n", retcode, dma.granted); + + ioctl(imesa->driFd, DRM_IOCTL_I810_FLUSH); + } + + if (I810_DEBUG&DEBUG_VERBOSE_IOCTL) + fprintf(stderr, + "imesa->i810Screen->bufs->list : %p, " + "dma.request_idx : %d\n", + imesa->i810Screen->bufs->list, dma.request_idx); + + buf = &(imesa->i810Screen->bufs->list[dma.request_idx]); + buf->idx = dma.request_idx; + buf->used = 0; + buf->total = dma.request_size; + buf->address = (drmAddress)dma.virtual; + return buf; +} + + + +#define DEPTH_SCALE ((1<<16)-1) + +GLbitfield i810Clear( GLcontext *ctx, GLbitfield mask, GLboolean all, + GLint cx, GLint cy, GLint cw, GLint ch ) +{ + i810ContextPtr imesa = I810_CONTEXT( ctx ); + __DRIdrawablePrivate *dPriv = imesa->driDrawable; + const GLuint colorMask = *((GLuint *) &ctx->Color.ColorMask); + drm_i810_clear_t clear; + int i; + + clear.flags = 0; + clear.clear_color = imesa->ClearColor; + clear.clear_depth = (GLuint) (ctx->Depth.Clear * DEPTH_SCALE); + + FLUSH_BATCH( imesa ); + + if ((mask & DD_FRONT_LEFT_BIT) && colorMask == ~0) { + clear.flags |= I810_FRONT; + mask &= ~DD_FRONT_LEFT_BIT; + } + + if ((mask & DD_BACK_LEFT_BIT) && colorMask == ~0) { + clear.flags |= I810_BACK; + mask &= ~DD_BACK_LEFT_BIT; + } + + if ((mask & DD_DEPTH_BIT) && ctx->Depth.Mask) { + clear.flags |= I810_DEPTH; + mask &= ~DD_DEPTH_BIT; + } + + if (!clear.flags) + return mask; + + LOCK_HARDWARE( imesa ); + + /* flip top to bottom */ + cy = dPriv->h-cy-ch; + cx += imesa->drawX; + cy += imesa->drawY; + + if (I810_DEBUG&DEBUG_VERBOSE_IOCTL) + fprintf(stderr, "Clear, bufs %x nbox %d\n", + (int)clear.flags, (int)imesa->numClipRects); + + for (i = 0 ; i < imesa->numClipRects ; ) + { + int nr = MIN2(i + I810_NR_SAREA_CLIPRECTS, imesa->numClipRects); + XF86DRIClipRectRec *box = imesa->pClipRects; + drm_clip_rect_t *b = imesa->sarea->boxes; + int n = 0; + + if (!all) { + for ( ; i < nr ; i++) { + GLint x = box[i].x1; + GLint y = box[i].y1; + GLint w = box[i].x2 - x; + GLint h = box[i].y2 - y; + + if (x < cx) w -= cx - x, x = cx; + if (y < cy) h -= cy - y, y = cy; + if (x + w > cx + cw) w = cx + cw - x; + if (y + h > cy + ch) h = cy + ch - y; + if (w <= 0) continue; + if (h <= 0) continue; + + b->x1 = x; + b->y1 = y; + b->x2 = x + w; + b->y2 = y + h; + b++; + n++; + } + } else { + for ( ; i < nr ; i++) { + *b++ = *(drm_clip_rect_t *)&box[i]; + n++; + } + } + + imesa->sarea->nbox = n; + ioctl(imesa->driFd, DRM_IOCTL_I810_CLEAR, &clear); + } + + UNLOCK_HARDWARE( imesa ); + imesa->dirty |= I810_UPLOAD_CLIPRECTS; + + return mask; +} + + + + +/* + * Copy the back buffer to the front buffer. + */ +void i810SwapBuffers( i810ContextPtr imesa ) +{ + __DRIdrawablePrivate *dPriv = imesa->driDrawable; + XF86DRIClipRectPtr pbox; + int nbox; + int i; + int tmp; + + FLUSH_BATCH( imesa ); + LOCK_HARDWARE( imesa ); + + pbox = dPriv->pClipRects; + nbox = dPriv->numClipRects; + + for (i = 0 ; i < nbox ; ) + { + int nr = MIN2(i + I810_NR_SAREA_CLIPRECTS, dPriv->numClipRects); + XF86DRIClipRectRec *b = (XF86DRIClipRectRec *)imesa->sarea->boxes; + + imesa->sarea->nbox = nr - i; + + for ( ; i < nr ; i++) + *b++ = pbox[i]; + + ioctl(imesa->driFd, DRM_IOCTL_I810_SWAP); + } + + tmp = GET_ENQUEUE_AGE(imesa); + UNLOCK_HARDWARE( imesa ); + + if (GET_DISPATCH_AGE(imesa) < imesa->lastSwap) + i810WaitAge(imesa, imesa->lastSwap); + + imesa->lastSwap = tmp; + imesa->dirty |= I810_UPLOAD_CLIPRECTS; +} + + + + + + +/* This waits for *everybody* to finish rendering -- overkill. + */ +void i810DmaFinish( i810ContextPtr imesa ) +{ + FLUSH_BATCH( imesa ); + + if (imesa->sarea->last_quiescent != imesa->sarea->last_enqueue) { + + if (I810_DEBUG&DEBUG_VERBOSE_IOCTL) + fprintf(stderr, "i810DmaFinish\n"); + + LOCK_HARDWARE( imesa ); + i810RegetLockQuiescent( imesa ); + UNLOCK_HARDWARE( imesa ); + imesa->sarea->last_quiescent = imesa->sarea->last_enqueue; + } +} + + +void i810RegetLockQuiescent( i810ContextPtr imesa ) +{ + if (imesa->sarea->last_quiescent != imesa->sarea->last_enqueue) { + if (I810_DEBUG&DEBUG_VERBOSE_IOCTL) + fprintf(stderr, "i810RegetLockQuiescent\n"); + + drmUnlock(imesa->driFd, imesa->hHWContext); + i810GetLock( imesa, DRM_LOCK_QUIESCENT ); + imesa->sarea->last_quiescent = imesa->sarea->last_enqueue; + } +} + +void i810WaitAgeLocked( i810ContextPtr imesa, int age ) +{ + int i = 0; + + + while (++i < 500000 && GET_DISPATCH_AGE(imesa) < age) { + ioctl(imesa->driFd, DRM_IOCTL_I810_GETAGE); + } + + if (GET_DISPATCH_AGE(imesa) < age) { + if (0) + fprintf(stderr, "wait locked %d %d\n", age, GET_DISPATCH_AGE(imesa)); + ioctl(imesa->driFd, DRM_IOCTL_I810_FLUSH); + } +} + + +void i810WaitAge( i810ContextPtr imesa, int age ) +{ + int i = 0; + + while (++i < 500000 && GET_DISPATCH_AGE(imesa) < age) { + ioctl(imesa->driFd, DRM_IOCTL_I810_GETAGE); + } + + if (GET_DISPATCH_AGE(imesa) >= age) + return; + + i = 0; + while (++i < 1000 && GET_DISPATCH_AGE(imesa) < age) { + ioctl(imesa->driFd, DRM_IOCTL_I810_GETAGE); + usleep(1000); + } + + /* To be effective at letting other clients at the hardware, + * particularly the X server which regularly needs quiescence to + * touch the framebuffer, we really need to sleep *beyond* the + * point where our last buffer clears the hardware. + */ + if (imesa->any_contend) { + usleep(3000); + } + + imesa->any_contend = 0; + + if (GET_DISPATCH_AGE(imesa) < age) { + LOCK_HARDWARE(imesa); + if (GET_DISPATCH_AGE(imesa) < age) + ioctl(imesa->driFd, DRM_IOCTL_I810_FLUSH); + UNLOCK_HARDWARE(imesa); + } +} + + + +void i810FlushVertices( i810ContextPtr imesa ) +{ + if (!imesa->vertex_dma_buffer) return; + + LOCK_HARDWARE( imesa ); + i810FlushVerticesLocked( imesa ); + UNLOCK_HARDWARE( imesa ); +} + + +static int intersect_rect( drm_clip_rect_t *out, + drm_clip_rect_t *a, + drm_clip_rect_t *b ) +{ + *out = *a; + if (b->x1 > out->x1) out->x1 = b->x1; + if (b->y1 > out->y1) out->y1 = b->y1; + if (b->x2 < out->x2) out->x2 = b->x2; + if (b->y2 < out->y2) out->y2 = b->y2; + if (out->x1 >= out->x2) return 0; + if (out->y1 >= out->y2) return 0; + return 1; +} + + +static void age_imesa( i810ContextPtr imesa, int age ) +{ + if (imesa->CurrentTexObj[0]) imesa->CurrentTexObj[0]->age = age; + if (imesa->CurrentTexObj[1]) imesa->CurrentTexObj[1]->age = age; +} + +void i810FlushVerticesLocked( i810ContextPtr imesa ) +{ + drm_clip_rect_t *pbox = (drm_clip_rect_t *)imesa->pClipRects; + int nbox = imesa->numClipRects; + drmBufPtr buffer = imesa->vertex_dma_buffer; + drm_i810_vertex_t vertex; + int i; + + if (I810_DEBUG&DEBUG_VERBOSE_IOCTL) + fprintf(stderr, "i810FlushVerticesLocked, buf->used %d\n", + buffer->used); + + if (!buffer) + return; + + if (imesa->dirty & ~I810_UPLOAD_CLIPRECTS) + i810EmitHwStateLocked( imesa ); + + if (I810_DEBUG&DEBUG_VERBOSE_IOCTL) + fprintf(stderr, "i810FlushVerticesLocked, used %d\n", + buffer->used); + + imesa->vertex_dma_buffer = 0; + + vertex.idx = buffer->idx; + vertex.used = buffer->used; + vertex.discard = 0; + + if (!nbox) + vertex.used = 0; + + if (nbox > I810_NR_SAREA_CLIPRECTS) + imesa->dirty |= I810_UPLOAD_CLIPRECTS; + + imesa->sarea->vertex_prim = imesa->vertex_prim; + + if (!nbox || !(imesa->dirty & I810_UPLOAD_CLIPRECTS)) + { + if (nbox == 1) + imesa->sarea->nbox = 0; + else + imesa->sarea->nbox = nbox; + + if (I810_DEBUG&DEBUG_VERBOSE_IOCTL) + fprintf(stderr, "DRM_IOCTL_I810_VERTEX CASE1 nbox %d used %d\n", + nbox, vertex.used); + + vertex.discard = 1; + ioctl(imesa->driFd, DRM_IOCTL_I810_VERTEX, &vertex); + age_imesa(imesa, imesa->sarea->last_enqueue); + } + else + { + for (i = 0 ; i < nbox ; ) + { + int nr = MIN2(i + I810_NR_SAREA_CLIPRECTS, nbox); + drm_clip_rect_t *b = imesa->sarea->boxes; + + if (imesa->scissor) { + imesa->sarea->nbox = 0; + + for ( ; i < nr ; i++) { + b->x1 = pbox[i].x1 - imesa->drawX; + b->y1 = pbox[i].y1 - imesa->drawY; + b->x2 = pbox[i].x2 - imesa->drawX; + b->y2 = pbox[i].y2 - imesa->drawY; + + if (intersect_rect(b, b, &imesa->scissor_rect)) { + imesa->sarea->nbox++; + b++; + } + } + + /* Culled? + */ + if (!imesa->sarea->nbox) { + if (nr < nbox) continue; + vertex.used = 0; + } + } else { + imesa->sarea->nbox = nr - i; + for ( ; i < nr ; i++, b++) { + b->x1 = pbox[i].x1 - imesa->drawX; + b->y1 = pbox[i].y1 - imesa->drawY; + b->x2 = pbox[i].x2 - imesa->drawX; + b->y2 = pbox[i].y2 - imesa->drawY; + } + } + + /* Finished with the buffer? + */ + if (nr == nbox) + vertex.discard = 1; + + if (I810_DEBUG&DEBUG_VERBOSE_IOCTL) + fprintf(stderr, "DRM_IOCTL_I810_VERTEX nbox %d used %d\n", + nbox, vertex.used); + + ioctl(imesa->driFd, DRM_IOCTL_I810_VERTEX, &vertex); + age_imesa(imesa, imesa->sarea->last_enqueue); + } + } + + imesa->dirty = 0; + if (I810_DEBUG&DEBUG_VERBOSE_IOCTL) + fprintf(stderr, "finished i810FlushVerticesLocked\n"); +} + + +GLuint *i810AllocDwords( i810ContextPtr imesa, int dwords, GLuint prim ) +{ + GLuint *start; + + if (!imesa->vertex_dma_buffer) + { + if (I810_DEBUG&DEBUG_VERBOSE_IOCTL) + fprintf(stderr, "i810AllocPrimitiveVerts -- get buf\n"); + LOCK_HARDWARE(imesa); + imesa->vertex_dma_buffer = i810_get_buffer_ioctl( imesa ); + imesa->vertex_dma_buffer->used = 4; + imesa->vertex_prim = prim; + UNLOCK_HARDWARE(imesa); + } + else if (imesa->vertex_prim != prim || + imesa->vertex_dma_buffer->used + dwords * 4 > + imesa->vertex_dma_buffer->total) + { + if (I810_DEBUG&DEBUG_VERBOSE_IOCTL) + fprintf(stderr, "i810AllocPrimitiveVerts -- flush\n"); + i810FlushVertices( imesa ); + LOCK_HARDWARE(imesa); + imesa->vertex_dma_buffer = i810_get_buffer_ioctl( imesa ); + imesa->vertex_dma_buffer->used = 4; + imesa->vertex_prim = prim; + UNLOCK_HARDWARE(imesa); + } + + + if (0) + fprintf(stderr, "i810AllocPrimitiveVerts %d, buf %d, used %d\n", + dwords, imesa->vertex_dma_buffer->idx, + imesa->vertex_dma_buffer->used); + + start = (GLuint *)((char *)imesa->vertex_dma_buffer->address + + imesa->vertex_dma_buffer->used); + + imesa->vertex_dma_buffer->used += dwords * 4; + + return start; +} + +static void i810DDFlush( GLcontext *ctx ) +{ + i810ContextPtr imesa = I810_CONTEXT( ctx ); + FLUSH_BATCH( imesa ); +} + +static void i810DDFinish( GLcontext *ctx ) +{ + i810ContextPtr imesa = I810_CONTEXT( ctx ); + i810DmaFinish( imesa ); +} + +void i810DDInitIoctlFuncs( GLcontext *ctx ) +{ + ctx->Driver.Flush = i810DDFlush; + ctx->Driver.Finish = i810DDFinish; +} |