diff options
Diffstat (limited to 'drivers/gpu/drm/mga/mga_state.c')
| -rw-r--r-- | drivers/gpu/drm/mga/mga_state.c | 1104 |
1 files changed, 1104 insertions, 0 deletions
diff --git a/drivers/gpu/drm/mga/mga_state.c b/drivers/gpu/drm/mga/mga_state.c new file mode 100644 index 000000000000..d3f8aade07b3 --- /dev/null +++ b/drivers/gpu/drm/mga/mga_state.c @@ -0,0 +1,1104 @@ +/* mga_state.c -- State support for MGA G200/G400 -*- linux-c -*- + * Created: Thu Jan 27 02:53:43 2000 by jhartmann@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Jeff Hartmann <jhartmann@valinux.com> + * Keith Whitwell <keith@tungstengraphics.com> + * + * Rewritten by: + * Gareth Hughes <gareth@valinux.com> + */ + +#include "drmP.h" +#include "drm.h" +#include "mga_drm.h" +#include "mga_drv.h" + +/* ================================================================ + * DMA hardware state programming functions + */ + +static void mga_emit_clip_rect(drm_mga_private_t * dev_priv, + struct drm_clip_rect * box) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_context_regs_t *ctx = &sarea_priv->context_state; + unsigned int pitch = dev_priv->front_pitch; + DMA_LOCALS; + + BEGIN_DMA(2); + + /* Force reset of DWGCTL on G400 (eliminates clip disable bit). + */ + if (dev_priv->chipset >= MGA_CARD_TYPE_G400) { + DMA_BLOCK(MGA_DWGCTL, ctx->dwgctl, + MGA_LEN + MGA_EXEC, 0x80000000, + MGA_DWGCTL, ctx->dwgctl, + MGA_LEN + MGA_EXEC, 0x80000000); + } + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_CXBNDRY, ((box->x2 - 1) << 16) | box->x1, + MGA_YTOP, box->y1 * pitch, MGA_YBOT, (box->y2 - 1) * pitch); + + ADVANCE_DMA(); +} + +static __inline__ void mga_g200_emit_context(drm_mga_private_t * dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_context_regs_t *ctx = &sarea_priv->context_state; + DMA_LOCALS; + + BEGIN_DMA(3); + + DMA_BLOCK(MGA_DSTORG, ctx->dstorg, + MGA_MACCESS, ctx->maccess, + MGA_PLNWT, ctx->plnwt, MGA_DWGCTL, ctx->dwgctl); + + DMA_BLOCK(MGA_ALPHACTRL, ctx->alphactrl, + MGA_FOGCOL, ctx->fogcolor, + MGA_WFLAG, ctx->wflag, MGA_ZORG, dev_priv->depth_offset); + + DMA_BLOCK(MGA_FCOL, ctx->fcol, + MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000); + + ADVANCE_DMA(); +} + +static __inline__ void mga_g400_emit_context(drm_mga_private_t * dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_context_regs_t *ctx = &sarea_priv->context_state; + DMA_LOCALS; + + BEGIN_DMA(4); + + DMA_BLOCK(MGA_DSTORG, ctx->dstorg, + MGA_MACCESS, ctx->maccess, + MGA_PLNWT, ctx->plnwt, MGA_DWGCTL, ctx->dwgctl); + + DMA_BLOCK(MGA_ALPHACTRL, ctx->alphactrl, + MGA_FOGCOL, ctx->fogcolor, + MGA_WFLAG, ctx->wflag, MGA_ZORG, dev_priv->depth_offset); + + DMA_BLOCK(MGA_WFLAG1, ctx->wflag, + MGA_TDUALSTAGE0, ctx->tdualstage0, + MGA_TDUALSTAGE1, ctx->tdualstage1, MGA_FCOL, ctx->fcol); + + DMA_BLOCK(MGA_STENCIL, ctx->stencil, + MGA_STENCILCTL, ctx->stencilctl, + MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000); + + ADVANCE_DMA(); +} + +static __inline__ void mga_g200_emit_tex0(drm_mga_private_t * dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_texture_regs_t *tex = &sarea_priv->tex_state[0]; + DMA_LOCALS; + + BEGIN_DMA(4); + + DMA_BLOCK(MGA_TEXCTL2, tex->texctl2, + MGA_TEXCTL, tex->texctl, + MGA_TEXFILTER, tex->texfilter, + MGA_TEXBORDERCOL, tex->texbordercol); + + DMA_BLOCK(MGA_TEXORG, tex->texorg, + MGA_TEXORG1, tex->texorg1, + MGA_TEXORG2, tex->texorg2, MGA_TEXORG3, tex->texorg3); + + DMA_BLOCK(MGA_TEXORG4, tex->texorg4, + MGA_TEXWIDTH, tex->texwidth, + MGA_TEXHEIGHT, tex->texheight, MGA_WR24, tex->texwidth); + + DMA_BLOCK(MGA_WR34, tex->texheight, + MGA_TEXTRANS, 0x0000ffff, + MGA_TEXTRANSHIGH, 0x0000ffff, MGA_DMAPAD, 0x00000000); + + ADVANCE_DMA(); +} + +static __inline__ void mga_g400_emit_tex0(drm_mga_private_t * dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_texture_regs_t *tex = &sarea_priv->tex_state[0]; + DMA_LOCALS; + +/* printk("mga_g400_emit_tex0 %x %x %x\n", tex->texorg, */ +/* tex->texctl, tex->texctl2); */ + + BEGIN_DMA(6); + + DMA_BLOCK(MGA_TEXCTL2, tex->texctl2 | MGA_G400_TC2_MAGIC, + MGA_TEXCTL, tex->texctl, + MGA_TEXFILTER, tex->texfilter, + MGA_TEXBORDERCOL, tex->texbordercol); + + DMA_BLOCK(MGA_TEXORG, tex->texorg, + MGA_TEXORG1, tex->texorg1, + MGA_TEXORG2, tex->texorg2, MGA_TEXORG3, tex->texorg3); + + DMA_BLOCK(MGA_TEXORG4, tex->texorg4, + MGA_TEXWIDTH, tex->texwidth, + MGA_TEXHEIGHT, tex->texheight, MGA_WR49, 0x00000000); + + DMA_BLOCK(MGA_WR57, 0x00000000, + MGA_WR53, 0x00000000, + MGA_WR61, 0x00000000, MGA_WR52, MGA_G400_WR_MAGIC); + + DMA_BLOCK(MGA_WR60, MGA_G400_WR_MAGIC, + MGA_WR54, tex->texwidth | MGA_G400_WR_MAGIC, + MGA_WR62, tex->texheight | MGA_G400_WR_MAGIC, + MGA_DMAPAD, 0x00000000); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_TEXTRANS, 0x0000ffff, MGA_TEXTRANSHIGH, 0x0000ffff); + + ADVANCE_DMA(); +} + +static __inline__ void mga_g400_emit_tex1(drm_mga_private_t * dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_texture_regs_t *tex = &sarea_priv->tex_state[1]; + DMA_LOCALS; + +/* printk("mga_g400_emit_tex1 %x %x %x\n", tex->texorg, */ +/* tex->texctl, tex->texctl2); */ + + BEGIN_DMA(5); + + DMA_BLOCK(MGA_TEXCTL2, (tex->texctl2 | + MGA_MAP1_ENABLE | + MGA_G400_TC2_MAGIC), + MGA_TEXCTL, tex->texctl, + MGA_TEXFILTER, tex->texfilter, + MGA_TEXBORDERCOL, tex->texbordercol); + + DMA_BLOCK(MGA_TEXORG, tex->texorg, + MGA_TEXORG1, tex->texorg1, + MGA_TEXORG2, tex->texorg2, MGA_TEXORG3, tex->texorg3); + + DMA_BLOCK(MGA_TEXORG4, tex->texorg4, + MGA_TEXWIDTH, tex->texwidth, + MGA_TEXHEIGHT, tex->texheight, MGA_WR49, 0x00000000); + + DMA_BLOCK(MGA_WR57, 0x00000000, + MGA_WR53, 0x00000000, + MGA_WR61, 0x00000000, + MGA_WR52, tex->texwidth | MGA_G400_WR_MAGIC); + + DMA_BLOCK(MGA_WR60, tex->texheight | MGA_G400_WR_MAGIC, + MGA_TEXTRANS, 0x0000ffff, + MGA_TEXTRANSHIGH, 0x0000ffff, + MGA_TEXCTL2, tex->texctl2 | MGA_G400_TC2_MAGIC); + + ADVANCE_DMA(); +} + +static __inline__ void mga_g200_emit_pipe(drm_mga_private_t * dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + unsigned int pipe = sarea_priv->warp_pipe; + DMA_LOCALS; + + BEGIN_DMA(3); + + DMA_BLOCK(MGA_WIADDR, MGA_WMODE_SUSPEND, + MGA_WVRTXSZ, 0x00000007, + MGA_WFLAG, 0x00000000, MGA_WR24, 0x00000000); + + DMA_BLOCK(MGA_WR25, 0x00000100, + MGA_WR34, 0x00000000, + MGA_WR42, 0x0000ffff, MGA_WR60, 0x0000ffff); + + /* Padding required to to hardware bug. + */ + DMA_BLOCK(MGA_DMAPAD, 0xffffffff, + MGA_DMAPAD, 0xffffffff, + MGA_DMAPAD, 0xffffffff, + MGA_WIADDR, (dev_priv->warp_pipe_phys[pipe] | + MGA_WMODE_START | dev_priv->wagp_enable)); + + ADVANCE_DMA(); +} + +static __inline__ void mga_g400_emit_pipe(drm_mga_private_t * dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + unsigned int pipe = sarea_priv->warp_pipe; + DMA_LOCALS; + +/* printk("mga_g400_emit_pipe %x\n", pipe); */ + + BEGIN_DMA(10); + + DMA_BLOCK(MGA_WIADDR2, MGA_WMODE_SUSPEND, + MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000); + + if (pipe & MGA_T2) { + DMA_BLOCK(MGA_WVRTXSZ, 0x00001e09, + MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000); + + DMA_BLOCK(MGA_WACCEPTSEQ, 0x00000000, + MGA_WACCEPTSEQ, 0x00000000, + MGA_WACCEPTSEQ, 0x00000000, + MGA_WACCEPTSEQ, 0x1e000000); + } else { + if (dev_priv->warp_pipe & MGA_T2) { + /* Flush the WARP pipe */ + DMA_BLOCK(MGA_YDST, 0x00000000, + MGA_FXLEFT, 0x00000000, + MGA_FXRIGHT, 0x00000001, + MGA_DWGCTL, MGA_DWGCTL_FLUSH); + + DMA_BLOCK(MGA_LEN + MGA_EXEC, 0x00000001, + MGA_DWGSYNC, 0x00007000, + MGA_TEXCTL2, MGA_G400_TC2_MAGIC, + MGA_LEN + MGA_EXEC, 0x00000000); + + DMA_BLOCK(MGA_TEXCTL2, (MGA_DUALTEX | + MGA_G400_TC2_MAGIC), + MGA_LEN + MGA_EXEC, 0x00000000, + MGA_TEXCTL2, MGA_G400_TC2_MAGIC, + MGA_DMAPAD, 0x00000000); + } + + DMA_BLOCK(MGA_WVRTXSZ, 0x00001807, + MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000); + + DMA_BLOCK(MGA_WACCEPTSEQ, 0x00000000, + MGA_WACCEPTSEQ, 0x00000000, + MGA_WACCEPTSEQ, 0x00000000, + MGA_WACCEPTSEQ, 0x18000000); + } + + DMA_BLOCK(MGA_WFLAG, 0x00000000, + MGA_WFLAG1, 0x00000000, + MGA_WR56, MGA_G400_WR56_MAGIC, MGA_DMAPAD, 0x00000000); + + DMA_BLOCK(MGA_WR49, 0x00000000, /* tex0 */ + MGA_WR57, 0x00000000, /* tex0 */ + MGA_WR53, 0x00000000, /* tex1 */ + MGA_WR61, 0x00000000); /* tex1 */ + + DMA_BLOCK(MGA_WR54, MGA_G400_WR_MAGIC, /* tex0 width */ + MGA_WR62, MGA_G400_WR_MAGIC, /* tex0 height */ + MGA_WR52, MGA_G400_WR_MAGIC, /* tex1 width */ + MGA_WR60, MGA_G400_WR_MAGIC); /* tex1 height */ + + /* Padding required to to hardware bug */ + DMA_BLOCK(MGA_DMAPAD, 0xffffffff, + MGA_DMAPAD, 0xffffffff, + MGA_DMAPAD, 0xffffffff, + MGA_WIADDR2, (dev_priv->warp_pipe_phys[pipe] | + MGA_WMODE_START | dev_priv->wagp_enable)); + + ADVANCE_DMA(); +} + +static void mga_g200_emit_state(drm_mga_private_t * dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + unsigned int dirty = sarea_priv->dirty; + + if (sarea_priv->warp_pipe != dev_priv->warp_pipe) { + mga_g200_emit_pipe(dev_priv); + dev_priv->warp_pipe = sarea_priv->warp_pipe; + } + + if (dirty & MGA_UPLOAD_CONTEXT) { + mga_g200_emit_context(dev_priv); + sarea_priv->dirty &= ~MGA_UPLOAD_CONTEXT; + } + + if (dirty & MGA_UPLOAD_TEX0) { + mga_g200_emit_tex0(dev_priv); + sarea_priv->dirty &= ~MGA_UPLOAD_TEX0; + } +} + +static void mga_g400_emit_state(drm_mga_private_t * dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + unsigned int dirty = sarea_priv->dirty; + int multitex = sarea_priv->warp_pipe & MGA_T2; + + if (sarea_priv->warp_pipe != dev_priv->warp_pipe) { + mga_g400_emit_pipe(dev_priv); + dev_priv->warp_pipe = sarea_priv->warp_pipe; + } + + if (dirty & MGA_UPLOAD_CONTEXT) { + mga_g400_emit_context(dev_priv); + sarea_priv->dirty &= ~MGA_UPLOAD_CONTEXT; + } + + if (dirty & MGA_UPLOAD_TEX0) { + mga_g400_emit_tex0(dev_priv); + sarea_priv->dirty &= ~MGA_UPLOAD_TEX0; + } + + if ((dirty & MGA_UPLOAD_TEX1) && multitex) { + mga_g400_emit_tex1(dev_priv); + sarea_priv->dirty &= ~MGA_UPLOAD_TEX1; + } +} + +/* ================================================================ + * SAREA state verification + */ + +/* Disallow all write destinations except the front and backbuffer. + */ +static int mga_verify_context(drm_mga_private_t * dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_context_regs_t *ctx = &sarea_priv->context_state; + + if (ctx->dstorg != dev_priv->front_offset && + ctx->dstorg != dev_priv->back_offset) { + DRM_ERROR("*** bad DSTORG: %x (front %x, back %x)\n\n", + ctx->dstorg, dev_priv->front_offset, + dev_priv->back_offset); + ctx->dstorg = 0; + return -EINVAL; + } + + return 0; +} + +/* Disallow texture reads from PCI space. + */ +static int mga_verify_tex(drm_mga_private_t * dev_priv, int unit) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_texture_regs_t *tex = &sarea_priv->tex_state[unit]; + unsigned int org; + + org = tex->texorg & (MGA_TEXORGMAP_MASK | MGA_TEXORGACC_MASK); + + if (org == (MGA_TEXORGMAP_SYSMEM | MGA_TEXORGACC_PCI)) { + DRM_ERROR("*** bad TEXORG: 0x%x, unit %d\n", tex->texorg, unit); + tex->texorg = 0; + return -EINVAL; + } + + return 0; +} + +static int mga_verify_state(drm_mga_private_t * dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + unsigned int dirty = sarea_priv->dirty; + int ret = 0; + + if (sarea_priv->nbox > MGA_NR_SAREA_CLIPRECTS) + sarea_priv->nbox = MGA_NR_SAREA_CLIPRECTS; + + if (dirty & MGA_UPLOAD_CONTEXT) + ret |= mga_verify_context(dev_priv); + + if (dirty & MGA_UPLOAD_TEX0) + ret |= mga_verify_tex(dev_priv, 0); + + if (dev_priv->chipset >= MGA_CARD_TYPE_G400) { + if (dirty & MGA_UPLOAD_TEX1) + ret |= mga_verify_tex(dev_priv, 1); + + if (dirty & MGA_UPLOAD_PIPE) + ret |= (sarea_priv->warp_pipe > MGA_MAX_G400_PIPES); + } else { + if (dirty & MGA_UPLOAD_PIPE) + ret |= (sarea_priv->warp_pipe > MGA_MAX_G200_PIPES); + } + + return (ret == 0); +} + +static int mga_verify_iload(drm_mga_private_t * dev_priv, + unsigned int dstorg, unsigned int length) +{ + if (dstorg < dev_priv->texture_offset || + dstorg + length > (dev_priv->texture_offset + + dev_priv->texture_size)) { + DRM_ERROR("*** bad iload DSTORG: 0x%x\n", dstorg); + return -EINVAL; + } + + if (length & MGA_ILOAD_MASK) { + DRM_ERROR("*** bad iload length: 0x%x\n", + length & MGA_ILOAD_MASK); + return -EINVAL; + } + + return 0; +} + +static int mga_verify_blit(drm_mga_private_t * dev_priv, + unsigned int srcorg, unsigned int dstorg) +{ + if ((srcorg & 0x3) == (MGA_SRCACC_PCI | MGA_SRCMAP_SYSMEM) || + (dstorg & 0x3) == (MGA_SRCACC_PCI | MGA_SRCMAP_SYSMEM)) { + DRM_ERROR("*** bad blit: src=0x%x dst=0x%x\n", srcorg, dstorg); + return -EINVAL; + } + return 0; +} + +/* ================================================================ + * + */ + +static void mga_dma_dispatch_clear(struct drm_device * dev, drm_mga_clear_t * clear) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_context_regs_t *ctx = &sarea_priv->context_state; + struct drm_clip_rect *pbox = sarea_priv->boxes; + int nbox = sarea_priv->nbox; + int i; + DMA_LOCALS; + DRM_DEBUG("\n"); + + BEGIN_DMA(1); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_DWGSYNC, 0x00007100, MGA_DWGSYNC, 0x00007000); + + ADVANCE_DMA(); + + for (i = 0; i < nbox; i++) { + struct drm_clip_rect *box = &pbox[i]; + u32 height = box->y2 - box->y1; + + DRM_DEBUG(" from=%d,%d to=%d,%d\n", + box->x1, box->y1, box->x2, box->y2); + + if (clear->flags & MGA_FRONT) { + BEGIN_DMA(2); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_PLNWT, clear->color_mask, + MGA_YDSTLEN, (box->y1 << 16) | height, + MGA_FXBNDRY, (box->x2 << 16) | box->x1); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_FCOL, clear->clear_color, + MGA_DSTORG, dev_priv->front_offset, + MGA_DWGCTL + MGA_EXEC, dev_priv->clear_cmd); + + ADVANCE_DMA(); + } + + if (clear->flags & MGA_BACK) { + BEGIN_DMA(2); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_PLNWT, clear->color_mask, + MGA_YDSTLEN, (box->y1 << 16) | height, + MGA_FXBNDRY, (box->x2 << 16) | box->x1); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_FCOL, clear->clear_color, + MGA_DSTORG, dev_priv->back_offset, + MGA_DWGCTL + MGA_EXEC, dev_priv->clear_cmd); + + ADVANCE_DMA(); + } + + if (clear->flags & MGA_DEPTH) { + BEGIN_DMA(2); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_PLNWT, clear->depth_mask, + MGA_YDSTLEN, (box->y1 << 16) | height, + MGA_FXBNDRY, (box->x2 << 16) | box->x1); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_FCOL, clear->clear_depth, + MGA_DSTORG, dev_priv->depth_offset, + MGA_DWGCTL + MGA_EXEC, dev_priv->clear_cmd); + + ADVANCE_DMA(); + } + + } + + BEGIN_DMA(1); + + /* Force reset of DWGCTL */ + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_PLNWT, ctx->plnwt, MGA_DWGCTL, ctx->dwgctl); + + ADVANCE_DMA(); + + FLUSH_DMA(); +} + +static void mga_dma_dispatch_swap(struct drm_device * dev) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_context_regs_t *ctx = &sarea_priv->context_state; + struct drm_clip_rect *pbox = sarea_priv->boxes; + int nbox = sarea_priv->nbox; + int i; + DMA_LOCALS; + DRM_DEBUG("\n"); + + sarea_priv->last_frame.head = dev_priv->prim.tail; + sarea_priv->last_frame.wrap = dev_priv->prim.last_wrap; + + BEGIN_DMA(4 + nbox); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_DWGSYNC, 0x00007100, MGA_DWGSYNC, 0x00007000); + + DMA_BLOCK(MGA_DSTORG, dev_priv->front_offset, + MGA_MACCESS, dev_priv->maccess, + MGA_SRCORG, dev_priv->back_offset, + MGA_AR5, dev_priv->front_pitch); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_PLNWT, 0xffffffff, MGA_DWGCTL, MGA_DWGCTL_COPY); + + for (i = 0; i < nbox; i++) { + struct drm_clip_rect *box = &pbox[i]; + u32 height = box->y2 - box->y1; + u32 start = box->y1 * dev_priv->front_pitch; + + DRM_DEBUG(" from=%d,%d to=%d,%d\n", + box->x1, box->y1, box->x2, box->y2); + + DMA_BLOCK(MGA_AR0, start + box->x2 - 1, + MGA_AR3, start + box->x1, + MGA_FXBNDRY, ((box->x2 - 1) << 16) | box->x1, + MGA_YDSTLEN + MGA_EXEC, (box->y1 << 16) | height); + } + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_PLNWT, ctx->plnwt, + MGA_SRCORG, dev_priv->front_offset, MGA_DWGCTL, ctx->dwgctl); + + ADVANCE_DMA(); + + FLUSH_DMA(); + + DRM_DEBUG("... done.\n"); +} + +static void mga_dma_dispatch_vertex(struct drm_device * dev, struct drm_buf * buf) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_buf_priv_t *buf_priv = buf->dev_private; + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + u32 address = (u32) buf->bus_address; + u32 length = (u32) buf->used; + int i = 0; + DMA_LOCALS; + DRM_DEBUG("buf=%d used=%d\n", buf->idx, buf->used); + + if (buf->used) { + buf_priv->dispatched = 1; + + MGA_EMIT_STATE(dev_priv, sarea_priv->dirty); + + do { + if (i < sarea_priv->nbox) { + mga_emit_clip_rect(dev_priv, + &sarea_priv->boxes[i]); + } + + BEGIN_DMA(1); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_SECADDRESS, (address | + MGA_DMA_VERTEX), + MGA_SECEND, ((address + length) | + dev_priv->dma_access)); + + ADVANCE_DMA(); + } while (++i < sarea_priv->nbox); + } + + if (buf_priv->discard) { + AGE_BUFFER(buf_priv); + buf->pending = 0; + buf->used = 0; + buf_priv->dispatched = 0; + + mga_freelist_put(dev, buf); + } + + FLUSH_DMA(); +} + +static void mga_dma_dispatch_indices(struct drm_device * dev, struct drm_buf * buf, + unsigned int start, unsigned int end) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_buf_priv_t *buf_priv = buf->dev_private; + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + u32 address = (u32) buf->bus_address; + int i = 0; + DMA_LOCALS; + DRM_DEBUG("buf=%d start=%d end=%d\n", buf->idx, start, end); + + if (start != end) { + buf_priv->dispatched = 1; + + MGA_EMIT_STATE(dev_priv, sarea_priv->dirty); + + do { + if (i < sarea_priv->nbox) { + mga_emit_clip_rect(dev_priv, + &sarea_priv->boxes[i]); + } + + BEGIN_DMA(1); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_SETUPADDRESS, address + start, + MGA_SETUPEND, ((address + end) | + dev_priv->dma_access)); + + ADVANCE_DMA(); + } while (++i < sarea_priv->nbox); + } + + if (buf_priv->discard) { + AGE_BUFFER(buf_priv); + buf->pending = 0; + buf->used = 0; + buf_priv->dispatched = 0; + + mga_freelist_put(dev, buf); + } + + FLUSH_DMA(); +} + +/* This copies a 64 byte aligned agp region to the frambuffer with a + * standard blit, the ioctl needs to do checking. + */ +static void mga_dma_dispatch_iload(struct drm_device * dev, struct drm_buf * buf, + unsigned int dstorg, unsigned int length) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_buf_priv_t *buf_priv = buf->dev_private; + drm_mga_context_regs_t *ctx = &dev_priv->sarea_priv->context_state; + u32 srcorg = + buf->bus_address | dev_priv->dma_access | MGA_SRCMAP_SYSMEM; + u32 y2; + DMA_LOCALS; + DRM_DEBUG("buf=%d used=%d\n", buf->idx, buf->used); + + y2 = length / 64; + + BEGIN_DMA(5); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_DWGSYNC, 0x00007100, MGA_DWGSYNC, 0x00007000); + + DMA_BLOCK(MGA_DSTORG, dstorg, + MGA_MACCESS, 0x00000000, MGA_SRCORG, srcorg, MGA_AR5, 64); + + DMA_BLOCK(MGA_PITCH, 64, + MGA_PLNWT, 0xffffffff, + MGA_DMAPAD, 0x00000000, MGA_DWGCTL, MGA_DWGCTL_COPY); + + DMA_BLOCK(MGA_AR0, 63, + MGA_AR3, 0, + MGA_FXBNDRY, (63 << 16) | 0, MGA_YDSTLEN + MGA_EXEC, y2); + + DMA_BLOCK(MGA_PLNWT, ctx->plnwt, + MGA_SRCORG, dev_priv->front_offset, + MGA_PITCH, dev_priv->front_pitch, MGA_DWGSYNC, 0x00007000); + + ADVANCE_DMA(); + + AGE_BUFFER(buf_priv); + + buf->pending = 0; + buf->used = 0; + buf_priv->dispatched = 0; + + mga_freelist_put(dev, buf); + + FLUSH_DMA(); +} + +static void mga_dma_dispatch_blit(struct drm_device * dev, drm_mga_blit_t * blit) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_context_regs_t *ctx = &sarea_priv->context_state; + struct drm_clip_rect *pbox = sarea_priv->boxes; + int nbox = sarea_priv->nbox; + u32 scandir = 0, i; + DMA_LOCALS; + DRM_DEBUG("\n"); + + BEGIN_DMA(4 + nbox); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_DWGSYNC, 0x00007100, MGA_DWGSYNC, 0x00007000); + + DMA_BLOCK(MGA_DWGCTL, MGA_DWGCTL_COPY, + MGA_PLNWT, blit->planemask, + MGA_SRCORG, blit->srcorg, MGA_DSTORG, blit->dstorg); + + DMA_BLOCK(MGA_SGN, scandir, + MGA_MACCESS, dev_priv->maccess, + MGA_AR5, blit->ydir * blit->src_pitch, + MGA_PITCH, blit->dst_pitch); + + for (i = 0; i < nbox; i++) { + int srcx = pbox[i].x1 + blit->delta_sx; + int srcy = pbox[i].y1 + blit->delta_sy; + int dstx = pbox[i].x1 + blit->delta_dx; + int dsty = pbox[i].y1 + blit->delta_dy; + int h = pbox[i].y2 - pbox[i].y1; + int w = pbox[i].x2 - pbox[i].x1 - 1; + int start; + + if (blit->ydir == -1) { + srcy = blit->height - srcy - 1; + } + + start = srcy * blit->src_pitch + srcx; + + DMA_BLOCK(MGA_AR0, start + w, + MGA_AR3, start, + MGA_FXBNDRY, ((dstx + w) << 16) | (dstx & 0xffff), + MGA_YDSTLEN + MGA_EXEC, (dsty << 16) | h); + } + + /* Do something to flush AGP? + */ + + /* Force reset of DWGCTL */ + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_PLNWT, ctx->plnwt, + MGA_PITCH, dev_priv->front_pitch, MGA_DWGCTL, ctx->dwgctl); + + ADVANCE_DMA(); +} + +/* ================================================================ + * + */ + +static int mga_dma_clear(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_clear_t *clear = data; + + LOCK_TEST_WITH_RETURN(dev, file_priv); + + if (sarea_priv->nbox > MGA_NR_SAREA_CLIPRECTS) + sarea_priv->nbox = MGA_NR_SAREA_CLIPRECTS; + + WRAP_TEST_WITH_RETURN(dev_priv); + + mga_dma_dispatch_clear(dev, clear); + + /* Make sure we restore the 3D state next time. + */ + dev_priv->sarea_priv->dirty |= MGA_UPLOAD_CONTEXT; + + return 0; +} + +static int mga_dma_swap(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + + LOCK_TEST_WITH_RETURN(dev, file_priv); + + if (sarea_priv->nbox > MGA_NR_SAREA_CLIPRECTS) + sarea_priv->nbox = MGA_NR_SAREA_CLIPRECTS; + + WRAP_TEST_WITH_RETURN(dev_priv); + + mga_dma_dispatch_swap(dev); + + /* Make sure we restore the 3D state next time. + */ + dev_priv->sarea_priv->dirty |= MGA_UPLOAD_CONTEXT; + + return 0; +} + +static int mga_dma_vertex(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + struct drm_device_dma *dma = dev->dma; + struct drm_buf *buf; + drm_mga_buf_priv_t *buf_priv; + drm_mga_vertex_t *vertex = data; + + LOCK_TEST_WITH_RETURN(dev, file_priv); + + if (vertex->idx < 0 || vertex->idx > dma->buf_count) + return -EINVAL; + buf = dma->buflist[vertex->idx]; + buf_priv = buf->dev_private; + + buf->used = vertex->used; + buf_priv->discard = vertex->discard; + + if (!mga_verify_state(dev_priv)) { + if (vertex->discard) { + if (buf_priv->dispatched == 1) + AGE_BUFFER(buf_priv); + buf_priv->dispatched = 0; + mga_freelist_put(dev, buf); + } + return -EINVAL; + } + + WRAP_TEST_WITH_RETURN(dev_priv); + + mga_dma_dispatch_vertex(dev, buf); + + return 0; +} + +static int mga_dma_indices(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + struct drm_device_dma *dma = dev->dma; + struct drm_buf *buf; + drm_mga_buf_priv_t *buf_priv; + drm_mga_indices_t *indices = data; + + LOCK_TEST_WITH_RETURN(dev, file_priv); + + if (indices->idx < 0 || indices->idx > dma->buf_count) + return -EINVAL; + + buf = dma->buflist[indices->idx]; + buf_priv = buf->dev_private; + + buf_priv->discard = indices->discard; + + if (!mga_verify_state(dev_priv)) { + if (indices->discard) { + if (buf_priv->dispatched == 1) + AGE_BUFFER(buf_priv); + buf_priv->dispatched = 0; + mga_freelist_put(dev, buf); + } + return -EINVAL; + } + + WRAP_TEST_WITH_RETURN(dev_priv); + + mga_dma_dispatch_indices(dev, buf, indices->start, indices->end); + + return 0; +} + +static int mga_dma_iload(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + struct drm_device_dma *dma = dev->dma; + drm_mga_private_t *dev_priv = dev->dev_private; + struct drm_buf *buf; + drm_mga_buf_priv_t *buf_priv; + drm_mga_iload_t *iload = data; + DRM_DEBUG("\n"); + + LOCK_TEST_WITH_RETURN(dev, file_priv); + +#if 0 + if (mga_do_wait_for_idle(dev_priv) < 0) { + if (MGA_DMA_DEBUG) + DRM_INFO("-EBUSY\n"); + return -EBUSY; + } +#endif + if (iload->idx < 0 || iload->idx > dma->buf_count) + return -EINVAL; + + buf = dma->buflist[iload->idx]; + buf_priv = buf->dev_private; + + if (mga_verify_iload(dev_priv, iload->dstorg, iload->length)) { + mga_freelist_put(dev, buf); + return -EINVAL; + } + + WRAP_TEST_WITH_RETURN(dev_priv); + + mga_dma_dispatch_iload(dev, buf, iload->dstorg, iload->length); + + /* Make sure we restore the 3D state next time. + */ + dev_priv->sarea_priv->dirty |= MGA_UPLOAD_CONTEXT; + + return 0; +} + +static int mga_dma_blit(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_blit_t *blit = data; + DRM_DEBUG("\n"); + + LOCK_TEST_WITH_RETURN(dev, file_priv); + + if (sarea_priv->nbox > MGA_NR_SAREA_CLIPRECTS) + sarea_priv->nbox = MGA_NR_SAREA_CLIPRECTS; + + if (mga_verify_blit(dev_priv, blit->srcorg, blit->dstorg)) + return -EINVAL; + + WRAP_TEST_WITH_RETURN(dev_priv); + + mga_dma_dispatch_blit(dev, blit); + + /* Make sure we restore the 3D state next time. + */ + dev_priv->sarea_priv->dirty |= MGA_UPLOAD_CONTEXT; + + return 0; +} + +static int mga_getparam(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_getparam_t *param = data; + int value; + + if (!dev_priv) { + DRM_ERROR("called with no initialization\n"); + return -EINVAL; + } + + DRM_DEBUG("pid=%d\n", DRM_CURRENTPID); + + switch (param->param) { + case MGA_PARAM_IRQ_NR: + value = dev->irq; + break; + case MGA_PARAM_CARD_TYPE: + value = dev_priv->chipset; + break; + default: + return -EINVAL; + } + + if (DRM_COPY_TO_USER(param->value, &value, sizeof(int))) { + DRM_ERROR("copy_to_user\n"); + return -EFAULT; + } + + return 0; +} + +static int mga_set_fence(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + u32 *fence = data; + DMA_LOCALS; + + if (!dev_priv) { + DRM_ERROR("called with no initialization\n"); + return -EINVAL; + } + + DRM_DEBUG("pid=%d\n", DRM_CURRENTPID); + + /* I would normal do this assignment in the declaration of fence, + * but dev_priv may be NULL. + */ + + *fence = dev_priv->next_fence_to_post; + dev_priv->next_fence_to_post++; + + BEGIN_DMA(1); + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, MGA_SOFTRAP, 0x00000000); + ADVANCE_DMA(); + + return 0; +} + +static int mga_wait_fence(struct drm_device *dev, void *data, struct drm_file * +file_priv) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + u32 *fence = data; + + if (!dev_priv) { + DRM_ERROR("called with no initialization\n"); + return -EINVAL; + } + + DRM_DEBUG("pid=%d\n", DRM_CURRENTPID); + + mga_driver_fence_wait(dev, fence); + return 0; +} + +struct drm_ioctl_desc mga_ioctls[] = { + DRM_IOCTL_DEF(DRM_MGA_INIT, mga_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), + DRM_IOCTL_DEF(DRM_MGA_FLUSH, mga_dma_flush, DRM_AUTH), + DRM_IOCTL_DEF(DRM_MGA_RESET, mga_dma_reset, DRM_AUTH), + DRM_IOCTL_DEF(DRM_MGA_SWAP, mga_dma_swap, DRM_AUTH), + DRM_IOCTL_DEF(DRM_MGA_CLEAR, mga_dma_clear, DRM_AUTH), + DRM_IOCTL_DEF(DRM_MGA_VERTEX, mga_dma_vertex, DRM_AUTH), + DRM_IOCTL_DEF(DRM_MGA_INDICES, mga_dma_indices, DRM_AUTH), + DRM_IOCTL_DEF(DRM_MGA_ILOAD, mga_dma_iload, DRM_AUTH), + DRM_IOCTL_DEF(DRM_MGA_BLIT, mga_dma_blit, DRM_AUTH), + DRM_IOCTL_DEF(DRM_MGA_GETPARAM, mga_getparam, DRM_AUTH), + DRM_IOCTL_DEF(DRM_MGA_SET_FENCE, mga_set_fence, DRM_AUTH), + DRM_IOCTL_DEF(DRM_MGA_WAIT_FENCE, mga_wait_fence, DRM_AUTH), + DRM_IOCTL_DEF(DRM_MGA_DMA_BOOTSTRAP, mga_dma_bootstrap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), +}; + +int mga_max_ioctl = DRM_ARRAY_SIZE(mga_ioctls); |