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Diffstat (limited to 'shared/mach64_state.c')
| -rw-r--r-- | shared/mach64_state.c | 896 |
1 files changed, 0 insertions, 896 deletions
diff --git a/shared/mach64_state.c b/shared/mach64_state.c deleted file mode 100644 index ef85ffd8..00000000 --- a/shared/mach64_state.c +++ /dev/null @@ -1,896 +0,0 @@ -/* mach64_state.c -- State support for mach64 (Rage Pro) driver -*- linux-c -*- - * Created: Sun Dec 03 19:20:26 2000 by gareth@valinux.com - * - * Copyright 2000 Gareth Hughes - * Copyright 2002-2003 Leif Delgass - * 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 - * THE COPYRIGHT OWNER(S) 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: - * Gareth Hughes <gareth@valinux.com> - * Leif Delgass <ldelgass@retinalburn.net> - * José Fonseca <j_r_fonseca@yahoo.co.uk> - */ - -#include "mach64.h" -#include "drmP.h" -#include "drm.h" -#include "mach64_drm.h" -#include "mach64_drv.h" - - -/* ================================================================ - * DMA hardware state programming functions - */ - -static void mach64_print_dirty( const char *msg, unsigned int flags ) -{ - DRM_DEBUG( "%s: (0x%x) %s%s%s%s%s%s%s%s%s%s%s%s\n", - msg, - flags, - (flags & MACH64_UPLOAD_DST_OFF_PITCH) ? "dst_off_pitch, " : "", - (flags & MACH64_UPLOAD_Z_ALPHA_CNTL) ? "z_alpha_cntl, " : "", - (flags & MACH64_UPLOAD_SCALE_3D_CNTL) ? "scale_3d_cntl, " : "", - (flags & MACH64_UPLOAD_DP_FOG_CLR) ? "dp_fog_clr, " : "", - (flags & MACH64_UPLOAD_DP_WRITE_MASK) ? "dp_write_mask, " : "", - (flags & MACH64_UPLOAD_DP_PIX_WIDTH) ? "dp_pix_width, " : "", - (flags & MACH64_UPLOAD_SETUP_CNTL) ? "setup_cntl, " : "", - (flags & MACH64_UPLOAD_MISC) ? "misc, " : "", - (flags & MACH64_UPLOAD_TEXTURE) ? "texture, " : "", - (flags & MACH64_UPLOAD_TEX0IMAGE) ? "tex0 image, " : "", - (flags & MACH64_UPLOAD_TEX1IMAGE) ? "tex1 image, " : "", - (flags & MACH64_UPLOAD_CLIPRECTS) ? "cliprects, " : "" ); -} - -/* Mach64 doesn't have hardware cliprects, just one hardware scissor, - * so the GL scissor is intersected with each cliprect here - */ -/* This function returns 0 on success, 1 for no intersection, and - * negative for an error - */ -static int mach64_emit_cliprect( DRMFILE filp, drm_mach64_private_t *dev_priv, - drm_clip_rect_t *box ) -{ - u32 sc_left_right, sc_top_bottom; - drm_clip_rect_t scissor; - drm_mach64_sarea_t *sarea_priv = dev_priv->sarea_priv; - drm_mach64_context_regs_t *regs = &sarea_priv->context_state; - DMALOCALS; - - DRM_DEBUG( "%s: box=%p\n", __FUNCTION__, box ); - - /* Get GL scissor */ - /* FIXME: store scissor in SAREA as a cliprect instead of in - * hardware format, or do intersection client-side - */ - scissor.x1 = regs->sc_left_right & 0xffff; - scissor.x2 = (regs->sc_left_right & 0xffff0000) >> 16; - scissor.y1 = regs->sc_top_bottom & 0xffff; - scissor.y2 = (regs->sc_top_bottom & 0xffff0000) >> 16; - - /* Intersect GL scissor with cliprect */ - if ( box->x1 > scissor.x1 ) scissor.x1 = box->x1; - if ( box->y1 > scissor.y1 ) scissor.y1 = box->y1; - if ( box->x2 < scissor.x2 ) scissor.x2 = box->x2; - if ( box->y2 < scissor.y2 ) scissor.y2 = box->y2; - /* positive return means skip */ - if ( scissor.x1 >= scissor.x2 ) return 1; - if ( scissor.y1 >= scissor.y2 ) return 1; - - DMAGETPTR( filp, dev_priv, 2 ); /* returns on failure to get buffer */ - - sc_left_right = ( (scissor.x1 << 0) | (scissor.x2 << 16) ); - sc_top_bottom = ( (scissor.y1 << 0) | (scissor.y2 << 16) ); - - DMAOUTREG( MACH64_SC_LEFT_RIGHT, sc_left_right ); - DMAOUTREG( MACH64_SC_TOP_BOTTOM, sc_top_bottom ); - - DMAADVANCE( dev_priv, 1 ); - - return 0; -} - -static __inline__ int mach64_emit_state( DRMFILE filp, drm_mach64_private_t *dev_priv ) -{ - drm_mach64_sarea_t *sarea_priv = dev_priv->sarea_priv; - drm_mach64_context_regs_t *regs = &sarea_priv->context_state; - unsigned int dirty = sarea_priv->dirty; - u32 offset = ((regs->tex_size_pitch & 0xf0) >> 2); - DMALOCALS; - - if ( MACH64_VERBOSE ) { - mach64_print_dirty( __FUNCTION__, dirty ); - } else { - DRM_DEBUG( "%s: dirty=0x%08x\n", __FUNCTION__, dirty ); - } - - DMAGETPTR( filp, dev_priv, 17 ); /* returns on failure to get buffer */ - - if ( dirty & MACH64_UPLOAD_MISC ) { - DMAOUTREG( MACH64_DP_MIX, regs->dp_mix ); - DMAOUTREG( MACH64_DP_SRC, regs->dp_src ); - DMAOUTREG( MACH64_CLR_CMP_CNTL, regs->clr_cmp_cntl ); - DMAOUTREG( MACH64_GUI_TRAJ_CNTL, regs->gui_traj_cntl ); - sarea_priv->dirty &= ~MACH64_UPLOAD_MISC; - } - - if ( dirty & MACH64_UPLOAD_DST_OFF_PITCH ) { - DMAOUTREG( MACH64_DST_OFF_PITCH, regs->dst_off_pitch ); - sarea_priv->dirty &= ~MACH64_UPLOAD_DST_OFF_PITCH; - } - if ( dirty & MACH64_UPLOAD_Z_OFF_PITCH ) { - DMAOUTREG( MACH64_Z_OFF_PITCH, regs->z_off_pitch ); - sarea_priv->dirty &= ~MACH64_UPLOAD_Z_OFF_PITCH; - } - if ( dirty & MACH64_UPLOAD_Z_ALPHA_CNTL ) { - DMAOUTREG( MACH64_Z_CNTL, regs->z_cntl ); - DMAOUTREG( MACH64_ALPHA_TST_CNTL, regs->alpha_tst_cntl ); - sarea_priv->dirty &= ~MACH64_UPLOAD_Z_ALPHA_CNTL; - } - if ( dirty & MACH64_UPLOAD_SCALE_3D_CNTL ) { - DMAOUTREG( MACH64_SCALE_3D_CNTL, regs->scale_3d_cntl ); - sarea_priv->dirty &= ~MACH64_UPLOAD_SCALE_3D_CNTL; - } - if ( dirty & MACH64_UPLOAD_DP_FOG_CLR ) { - DMAOUTREG( MACH64_DP_FOG_CLR, regs->dp_fog_clr ); - sarea_priv->dirty &= ~MACH64_UPLOAD_DP_FOG_CLR; - } - if ( dirty & MACH64_UPLOAD_DP_WRITE_MASK ) { - DMAOUTREG( MACH64_DP_WRITE_MASK, regs->dp_write_mask ); - sarea_priv->dirty &= ~MACH64_UPLOAD_DP_WRITE_MASK; - } - if ( dirty & MACH64_UPLOAD_DP_PIX_WIDTH ) { - DMAOUTREG( MACH64_DP_PIX_WIDTH, regs->dp_pix_width ); - sarea_priv->dirty &= ~MACH64_UPLOAD_DP_PIX_WIDTH; - } - if ( dirty & MACH64_UPLOAD_SETUP_CNTL ) { - DMAOUTREG( MACH64_SETUP_CNTL, regs->setup_cntl ); - sarea_priv->dirty &= ~MACH64_UPLOAD_SETUP_CNTL; - } - - if ( dirty & MACH64_UPLOAD_TEXTURE ) { - DMAOUTREG( MACH64_TEX_SIZE_PITCH, regs->tex_size_pitch ); - DMAOUTREG( MACH64_TEX_CNTL, regs->tex_cntl ); - DMAOUTREG( MACH64_SECONDARY_TEX_OFF, regs->secondary_tex_off ); - DMAOUTREG( MACH64_TEX_0_OFF + offset, regs->tex_offset ); - sarea_priv->dirty &= ~MACH64_UPLOAD_TEXTURE; - } - - DMAADVANCE( dev_priv, 1 ); - - sarea_priv->dirty &= MACH64_UPLOAD_CLIPRECTS; - - return 0; - -} - - -/* ================================================================ - * DMA command dispatch functions - */ - -static int mach64_dma_dispatch_clear( DRMFILE filp, drm_device_t *dev, - unsigned int flags, - int cx, int cy, int cw, int ch, - unsigned int clear_color, - unsigned int clear_depth ) -{ - drm_mach64_private_t *dev_priv = dev->dev_private; - drm_mach64_sarea_t *sarea_priv = dev_priv->sarea_priv; - drm_mach64_context_regs_t *ctx = &sarea_priv->context_state; - int nbox = sarea_priv->nbox; - drm_clip_rect_t *pbox = sarea_priv->boxes; - u32 fb_bpp, depth_bpp; - int i; - DMALOCALS; - - DRM_DEBUG( "%s\n", __FUNCTION__ ); - - switch ( dev_priv->fb_bpp ) { - case 16: - fb_bpp = MACH64_DATATYPE_RGB565; - break; - case 32: - fb_bpp = MACH64_DATATYPE_ARGB8888; - break; - default: - return DRM_ERR(EINVAL); - } - switch ( dev_priv->depth_bpp ) { - case 16: - depth_bpp = MACH64_DATATYPE_RGB565; - break; - case 24: - case 32: - depth_bpp = MACH64_DATATYPE_ARGB8888; - break; - default: - return DRM_ERR(EINVAL); - } - - if ( !nbox ) - return 0; - - DMAGETPTR( filp, dev_priv, nbox * 31 ); /* returns on failure to get buffer */ - - for ( i = 0 ; i < nbox ; i++ ) { - int x = pbox[i].x1; - int y = pbox[i].y1; - int w = pbox[i].x2 - x; - int h = pbox[i].y2 - y; - - DRM_DEBUG( "dispatch clear %d,%d-%d,%d flags 0x%x\n", - pbox[i].x1, pbox[i].y1, - pbox[i].x2, pbox[i].y2, flags ); - - if ( flags & (MACH64_FRONT | MACH64_BACK) ) { - /* Setup for color buffer clears - */ - - DMAOUTREG( MACH64_Z_CNTL, 0 ); - DMAOUTREG( MACH64_SCALE_3D_CNTL, 0 ); - - DMAOUTREG( MACH64_SC_LEFT_RIGHT, ctx->sc_left_right ); - DMAOUTREG( MACH64_SC_TOP_BOTTOM, ctx->sc_top_bottom ); - - DMAOUTREG( MACH64_CLR_CMP_CNTL, 0 ); - DMAOUTREG( MACH64_GUI_TRAJ_CNTL, - (MACH64_DST_X_LEFT_TO_RIGHT | - MACH64_DST_Y_TOP_TO_BOTTOM) ); - - DMAOUTREG( MACH64_DP_PIX_WIDTH, ((fb_bpp << 0) | - (fb_bpp << 4) | - (fb_bpp << 8) | - (fb_bpp << 16) | - (fb_bpp << 28)) ); - - DMAOUTREG( MACH64_DP_FRGD_CLR, clear_color ); - DMAOUTREG( MACH64_DP_WRITE_MASK, ctx->dp_write_mask ); - DMAOUTREG( MACH64_DP_MIX, (MACH64_BKGD_MIX_D | - MACH64_FRGD_MIX_S) ); - DMAOUTREG( MACH64_DP_SRC, (MACH64_BKGD_SRC_FRGD_CLR | - MACH64_FRGD_SRC_FRGD_CLR | - MACH64_MONO_SRC_ONE) ); - - - } - - if ( flags & MACH64_FRONT ) { - - DMAOUTREG( MACH64_DST_OFF_PITCH, - dev_priv->front_offset_pitch ); - DMAOUTREG( MACH64_DST_X_Y, - (y << 16) | x ); - DMAOUTREG( MACH64_DST_WIDTH_HEIGHT, - (h << 16) | w ); - - } - - if ( flags & MACH64_BACK ) { - - DMAOUTREG( MACH64_DST_OFF_PITCH, - dev_priv->back_offset_pitch ); - DMAOUTREG( MACH64_DST_X_Y, - (y << 16) | x ); - DMAOUTREG( MACH64_DST_WIDTH_HEIGHT, - (h << 16) | w ); - - } - - if ( flags & MACH64_DEPTH ) { - /* Setup for depth buffer clear - */ - DMAOUTREG( MACH64_Z_CNTL, 0 ); - DMAOUTREG( MACH64_SCALE_3D_CNTL, 0 ); - - DMAOUTREG( MACH64_SC_LEFT_RIGHT, ctx->sc_left_right ); - DMAOUTREG( MACH64_SC_TOP_BOTTOM, ctx->sc_top_bottom ); - - DMAOUTREG( MACH64_CLR_CMP_CNTL, 0 ); - DMAOUTREG( MACH64_GUI_TRAJ_CNTL, - (MACH64_DST_X_LEFT_TO_RIGHT | - MACH64_DST_Y_TOP_TO_BOTTOM) ); - - DMAOUTREG( MACH64_DP_PIX_WIDTH, ((depth_bpp << 0) | - (depth_bpp << 4) | - (depth_bpp << 8) | - (depth_bpp << 16) | - (depth_bpp << 28)) ); - - DMAOUTREG( MACH64_DP_FRGD_CLR, clear_depth ); - DMAOUTREG( MACH64_DP_WRITE_MASK, 0xffffffff ); - DMAOUTREG( MACH64_DP_MIX, (MACH64_BKGD_MIX_D | - MACH64_FRGD_MIX_S) ); - DMAOUTREG( MACH64_DP_SRC, (MACH64_BKGD_SRC_FRGD_CLR | - MACH64_FRGD_SRC_FRGD_CLR | - MACH64_MONO_SRC_ONE) ); - - DMAOUTREG( MACH64_DST_OFF_PITCH, - dev_priv->depth_offset_pitch ); - DMAOUTREG( MACH64_DST_X_Y, - (y << 16) | x ); - DMAOUTREG( MACH64_DST_WIDTH_HEIGHT, - (h << 16) | w ); - } - } - - DMAADVANCE( dev_priv, 1 ); - - return 0; -} - -static int mach64_dma_dispatch_swap( DRMFILE filp, drm_device_t *dev ) -{ - drm_mach64_private_t *dev_priv = dev->dev_private; - drm_mach64_sarea_t *sarea_priv = dev_priv->sarea_priv; - int nbox = sarea_priv->nbox; - drm_clip_rect_t *pbox = sarea_priv->boxes; - u32 fb_bpp; - int i; - DMALOCALS; - - DRM_DEBUG( "%s\n", __FUNCTION__ ); - - switch ( dev_priv->fb_bpp ) { - case 16: - fb_bpp = MACH64_DATATYPE_RGB565; - break; - case 32: - default: - fb_bpp = MACH64_DATATYPE_ARGB8888; - break; - } - - if ( !nbox ) - return 0; - - DMAGETPTR( filp, dev_priv, 13 + nbox * 4 ); /* returns on failure to get buffer */ - - DMAOUTREG( MACH64_Z_CNTL, 0 ); - DMAOUTREG( MACH64_SCALE_3D_CNTL, 0 ); - - DMAOUTREG( MACH64_SC_LEFT_RIGHT, 0 | ( 8191 << 16 ) ); /* no scissor */ - DMAOUTREG( MACH64_SC_TOP_BOTTOM, 0 | ( 16383 << 16 ) ); - - DMAOUTREG( MACH64_CLR_CMP_CNTL, 0 ); - DMAOUTREG( MACH64_GUI_TRAJ_CNTL, (MACH64_DST_X_LEFT_TO_RIGHT | - MACH64_DST_Y_TOP_TO_BOTTOM) ); - - DMAOUTREG( MACH64_DP_PIX_WIDTH, ((fb_bpp << 0) | - (fb_bpp << 4) | - (fb_bpp << 8) | - (fb_bpp << 16) | - (fb_bpp << 28)) ); - - DMAOUTREG( MACH64_DP_WRITE_MASK, 0xffffffff ); - DMAOUTREG( MACH64_DP_MIX, (MACH64_BKGD_MIX_D | - MACH64_FRGD_MIX_S) ); - DMAOUTREG( MACH64_DP_SRC, (MACH64_BKGD_SRC_BKGD_CLR | - MACH64_FRGD_SRC_BLIT | - MACH64_MONO_SRC_ONE) ); - - DMAOUTREG( MACH64_SRC_OFF_PITCH, dev_priv->back_offset_pitch ); - DMAOUTREG( MACH64_DST_OFF_PITCH, dev_priv->front_offset_pitch ); - - for ( i = 0 ; i < nbox ; i++ ) { - int x = pbox[i].x1; - int y = pbox[i].y1; - int w = pbox[i].x2 - x; - int h = pbox[i].y2 - y; - - DRM_DEBUG( "dispatch swap %d,%d-%d,%d\n", - pbox[i].x1, pbox[i].y1, - pbox[i].x2, pbox[i].y2 ); - - DMAOUTREG( MACH64_SRC_WIDTH1, w ); - DMAOUTREG( MACH64_SRC_Y_X, (x << 16) | y ); - DMAOUTREG( MACH64_DST_Y_X, (x << 16) | y ); - DMAOUTREG( MACH64_DST_WIDTH_HEIGHT, (h << 16) | w ); - - } - - DMAADVANCE( dev_priv, 1 ); - - if (dev_priv->driver_mode == MACH64_MODE_DMA_ASYNC) { - for (i = 0; i < MACH64_MAX_QUEUED_FRAMES - 1; i++) { - dev_priv->frame_ofs[i] = dev_priv->frame_ofs[i+1]; - } - dev_priv->frame_ofs[i] = GETRINGOFFSET(); - - dev_priv->sarea_priv->frames_queued++; - } - - return 0; -} - -static int mach64_do_get_frames_queued( drm_mach64_private_t *dev_priv ) -{ - drm_mach64_descriptor_ring_t *ring = &dev_priv->ring; - drm_mach64_sarea_t *sarea_priv = dev_priv->sarea_priv; - int i, start; - u32 head, tail, ofs; - - DRM_DEBUG( "%s\n", __FUNCTION__ ); - - if (sarea_priv->frames_queued == 0) - return 0; - - tail = ring->tail; - mach64_ring_tick( dev_priv, ring ); - head = ring->head; - - start = ( MACH64_MAX_QUEUED_FRAMES - - DRM_MIN(MACH64_MAX_QUEUED_FRAMES, sarea_priv->frames_queued) ); - - if ( head == tail ) { - sarea_priv->frames_queued = 0; - for (i = start; i < MACH64_MAX_QUEUED_FRAMES; i++) { - dev_priv->frame_ofs[i] = ~0; - } - return 0; - } - - for ( i = start; i < MACH64_MAX_QUEUED_FRAMES; i++ ) { - ofs = dev_priv->frame_ofs[i]; - DRM_DEBUG( "frame_ofs[%d] ofs: %d\n", i, ofs ); - if ( ofs == ~0 || - ( head < tail && (ofs < head || ofs >= tail) ) || - ( head > tail && (ofs < head && ofs >= tail) ) ) { - sarea_priv->frames_queued = (MACH64_MAX_QUEUED_FRAMES - 1) - i; - dev_priv->frame_ofs[i] = ~0; - } - } - - return sarea_priv->frames_queued; -} - -/* Copy and verify a client submited buffer. - * FIXME: Make an assembly optimized version - */ -static __inline__ int copy_and_verify_from_user( u32 *to, const u32 *from, unsigned long bytes ) -{ - unsigned long n = bytes; /* dwords remaining in buffer */ - - if ( DRM_VERIFYAREA_READ( from, n ) ) { - DRM_ERROR( "%s: verify_area\n", __FUNCTION__ ); - return DRM_ERR(EFAULT); - } - - n >>= 2; - - while ( n > 1 ) { - u32 data, reg, count; - - if ( DRM_GET_USER_UNCHECKED( data, from++ ) ) { - DRM_ERROR( "%s: get_user\n", __FUNCTION__ ); - return DRM_ERR(EFAULT); - } - - n--; - - reg = le32_to_cpu(data); - count = (reg >> 16) + 1; - if( count <= n ) { - n -= count; - reg &= 0xffff; - - /* This is an exact match of Mach64's Setup Engine registers, - * excluding SETUP_CNTL (1_C1). - */ - if( (reg >= 0x0190 && reg < 0x01c1) || - (reg >= 0x01ca && reg <= 0x01cf) ) { - *to++ = data; - if ( DRM_COPY_FROM_USER_UNCHECKED( to, from, count << 2 ) ) { - DRM_ERROR( "%s: copy_from_user\n", __FUNCTION__ ); - return DRM_ERR(EFAULT); - } - to += count; - } else { - DRM_ERROR( "%s: Got bad command: 0x%04x\n", __FUNCTION__, reg ); - return DRM_ERR(EACCES); - } - - from += count; - } else { - DRM_ERROR( "%s: Got bad command count(=%u) dwords remaining=%lu\n", - __FUNCTION__, count, n ); - return DRM_ERR(EINVAL); - } - } - - if (n == 0) - return 0; - else { - DRM_ERROR( "%s: Bad buf->used(=%lu)\n", __FUNCTION__, bytes ); - return DRM_ERR(EINVAL); - } -} - -static int mach64_dma_dispatch_vertex( DRMFILE filp, drm_device_t *dev, int prim, void *buf, - unsigned long used, int discard ) -{ - drm_mach64_private_t *dev_priv = dev->dev_private; - drm_mach64_sarea_t *sarea_priv = dev_priv->sarea_priv; - drm_buf_t *copy_buf; - int done = 0; - int verify_ret = 0; - DMALOCALS; - - DRM_DEBUG( "%s: buf=%p used=%lu nbox=%d\n", - __FUNCTION__, buf, used, sarea_priv->nbox ); - - if ( used ) { - int ret = 0; - int i = 0; - - copy_buf = mach64_freelist_get( dev_priv ); - if (copy_buf == NULL) { - DRM_ERROR("%s: couldn't get buffer in DMAGETPTR\n", - __FUNCTION__ ); - return DRM_ERR(EAGAIN); - } - - if ( (verify_ret = - copy_and_verify_from_user( GETBUFPTR( copy_buf ), buf, used )) == 0 ) { - - copy_buf->used = used; - - DMASETPTR( copy_buf ); - - if ( sarea_priv->dirty & ~MACH64_UPLOAD_CLIPRECTS ) { - ret = mach64_emit_state( filp, dev_priv ); - if (ret < 0) return ret; - } - - do { - /* Emit the next cliprect */ - if ( i < sarea_priv->nbox ) { - ret = mach64_emit_cliprect(filp, dev_priv, - &sarea_priv->boxes[i]); - if ( ret < 0 ) { - /* failed to get buffer */ - return ret; - } else if ( ret != 0 ) { - /* null intersection with scissor */ - continue; - } - } - if ((i >= sarea_priv->nbox - 1)) - done = 1; - - /* Add the buffer to the DMA queue */ - DMAADVANCE( dev_priv, done ); - - } while ( ++i < sarea_priv->nbox ); - } - - if (copy_buf->pending && !done) { - DMADISCARDBUF(); - } else if (!done) { - /* This buffer wasn't used (no cliprects or verify failed), so place it back - * on the free list - */ - struct list_head *ptr; - drm_mach64_freelist_t *entry; -#if MACH64_EXTRA_CHECKING - list_for_each(ptr, &dev_priv->pending) { - entry = list_entry(ptr, drm_mach64_freelist_t, list); - if (copy_buf == entry->buf) { - DRM_ERROR( "%s: Trying to release a pending buf\n", - __FUNCTION__ ); - return DRM_ERR(EFAULT); - } - } -#endif - ptr = dev_priv->placeholders.next; - entry = list_entry(ptr, drm_mach64_freelist_t, list); - copy_buf->pending = 0; - copy_buf->used = 0; - entry->buf = copy_buf; - entry->discard = 1; - list_del(ptr); - list_add_tail(ptr, &dev_priv->free_list); - } - } - - sarea_priv->dirty &= ~MACH64_UPLOAD_CLIPRECTS; - sarea_priv->nbox = 0; - - return verify_ret; -} - - -static int mach64_dma_dispatch_blit( DRMFILE filp, drm_device_t *dev, - drm_mach64_blit_t *blit ) -{ - drm_mach64_private_t *dev_priv = dev->dev_private; - drm_device_dma_t *dma = dev->dma; - int dword_shift, dwords; - drm_buf_t *buf; - DMALOCALS; - - /* The compiler won't optimize away a division by a variable, - * even if the only legal values are powers of two. Thus, we'll - * use a shift instead. - */ - switch ( blit->format ) { - case MACH64_DATATYPE_ARGB8888: - dword_shift = 0; - break; - case MACH64_DATATYPE_ARGB1555: - case MACH64_DATATYPE_RGB565: - case MACH64_DATATYPE_VYUY422: - case MACH64_DATATYPE_YVYU422: - case MACH64_DATATYPE_ARGB4444: - dword_shift = 1; - break; - case MACH64_DATATYPE_CI8: - case MACH64_DATATYPE_RGB8: - dword_shift = 2; - break; - default: - DRM_ERROR( "invalid blit format %d\n", blit->format ); - return DRM_ERR(EINVAL); - } - - /* Dispatch the blit buffer. - */ - buf = dma->buflist[blit->idx]; - - if ( buf->filp != filp ) { - DRM_ERROR( "process %d (filp %p) using buffer with filp %p\n", - DRM_CURRENTPID, filp, buf->filp ); - return DRM_ERR(EINVAL); - } - - if ( buf->pending ) { - DRM_ERROR( "sending pending buffer %d\n", blit->idx ); - return DRM_ERR(EINVAL); - } - - /* Set buf->used to the bytes of blit data based on the blit dimensions - * and verify the size. When the setup is emitted to the buffer with - * the DMA* macros below, buf->used is incremented to include the bytes - * used for setup as well as the blit data. - */ - dwords = (blit->width * blit->height) >> dword_shift; - buf->used = dwords << 2; - if ( buf->used <= 0 || - buf->used > MACH64_BUFFER_SIZE - MACH64_HOSTDATA_BLIT_OFFSET ) { - DRM_ERROR( "Invalid blit size: %d bytes\n", buf->used ); - return DRM_ERR(EINVAL); - } - - /* FIXME: Use a last buffer flag and reduce the state emitted for subsequent, - * continuation buffers? - */ - - /* Blit via BM_HOSTDATA (gui-master) - like HOST_DATA[0-15], but doesn't require - * a register command every 16 dwords. State setup is added at the start of the - * buffer -- the client leaves space for this based on MACH64_HOSTDATA_BLIT_OFFSET - */ - DMASETPTR( buf ); - - DMAOUTREG( MACH64_Z_CNTL, 0 ); - DMAOUTREG( MACH64_SCALE_3D_CNTL, 0 ); - - DMAOUTREG( MACH64_SC_LEFT_RIGHT, 0 | ( 8191 << 16 ) ); /* no scissor */ - DMAOUTREG( MACH64_SC_TOP_BOTTOM, 0 | ( 16383 << 16 ) ); - - DMAOUTREG( MACH64_CLR_CMP_CNTL, 0 ); /* disable */ - DMAOUTREG( MACH64_GUI_TRAJ_CNTL, - MACH64_DST_X_LEFT_TO_RIGHT - | MACH64_DST_Y_TOP_TO_BOTTOM ); - - DMAOUTREG( MACH64_DP_PIX_WIDTH, - ( blit->format << 0 ) /* dst pix width */ - | ( blit->format << 4 ) /* composite pix width */ - | ( blit->format << 8 ) /* src pix width */ - | ( blit->format << 16 ) /* host data pix width */ - | ( blit->format << 28 ) /* scaler/3D pix width */ - ); - - DMAOUTREG( MACH64_DP_WRITE_MASK, 0xffffffff ); /* enable all planes */ - DMAOUTREG( MACH64_DP_MIX, - MACH64_BKGD_MIX_D - | MACH64_FRGD_MIX_S ); - DMAOUTREG( MACH64_DP_SRC, - MACH64_BKGD_SRC_BKGD_CLR - | MACH64_FRGD_SRC_HOST - | MACH64_MONO_SRC_ONE ); - - DMAOUTREG( MACH64_DST_OFF_PITCH, (blit->pitch << 22) | (blit->offset >> 3) ); - DMAOUTREG( MACH64_DST_X_Y, (blit->y << 16) | blit->x ); - DMAOUTREG( MACH64_DST_WIDTH_HEIGHT, (blit->height << 16) | blit->width ); - - DRM_DEBUG( "%s: %d bytes\n", __FUNCTION__, buf->used ); - - /* Add the buffer to the queue */ - DMAADVANCEHOSTDATA( dev_priv ); - - return 0; -} - -/* ================================================================ - * IOCTL functions - */ - -int mach64_dma_clear( DRM_IOCTL_ARGS ) -{ - DRM_DEVICE; - drm_mach64_private_t *dev_priv = dev->dev_private; - drm_mach64_sarea_t *sarea_priv = dev_priv->sarea_priv; - drm_mach64_clear_t clear; - int ret; - - DRM_DEBUG( "%s: pid=%d\n", __FUNCTION__, DRM_CURRENTPID ); - - LOCK_TEST_WITH_RETURN( dev, filp ); - - DRM_COPY_FROM_USER_IOCTL( clear, (drm_mach64_clear_t *)data, - sizeof(clear) ); - - if ( sarea_priv->nbox > MACH64_NR_SAREA_CLIPRECTS ) - sarea_priv->nbox = MACH64_NR_SAREA_CLIPRECTS; - - ret = mach64_dma_dispatch_clear( filp, dev, clear.flags, - clear.x, clear.y, clear.w, clear.h, - clear.clear_color, clear.clear_depth ); - - /* Make sure we restore the 3D state next time. - */ - sarea_priv->dirty |= (MACH64_UPLOAD_CONTEXT | - MACH64_UPLOAD_MISC); - return ret; -} - -int mach64_dma_swap( DRM_IOCTL_ARGS ) -{ - DRM_DEVICE; - drm_mach64_private_t *dev_priv = dev->dev_private; - drm_mach64_sarea_t *sarea_priv = dev_priv->sarea_priv; - int ret; - - DRM_DEBUG( "%s: pid=%d\n", __FUNCTION__, DRM_CURRENTPID ); - - LOCK_TEST_WITH_RETURN( dev, filp ); - - if ( sarea_priv->nbox > MACH64_NR_SAREA_CLIPRECTS ) - sarea_priv->nbox = MACH64_NR_SAREA_CLIPRECTS; - - ret = mach64_dma_dispatch_swap( filp, dev ); - - /* Make sure we restore the 3D state next time. - */ - sarea_priv->dirty |= (MACH64_UPLOAD_CONTEXT | - MACH64_UPLOAD_MISC); - return ret; -} - -int mach64_dma_vertex( DRM_IOCTL_ARGS ) -{ - DRM_DEVICE; - drm_mach64_private_t *dev_priv = dev->dev_private; - drm_mach64_sarea_t *sarea_priv = dev_priv->sarea_priv; - drm_mach64_vertex_t vertex; - - LOCK_TEST_WITH_RETURN( dev, filp ); - - if ( !dev_priv ) { - DRM_ERROR( "%s called with no initialization\n", __FUNCTION__ ); - return DRM_ERR(EINVAL); - } - - DRM_COPY_FROM_USER_IOCTL( vertex, (drm_mach64_vertex_t *)data, - sizeof(vertex) ); - - DRM_DEBUG( "%s: pid=%d buf=%p used=%lu discard=%d\n", - __FUNCTION__, DRM_CURRENTPID, - vertex.buf, vertex.used, vertex.discard ); - - if ( vertex.prim < 0 || - vertex.prim > MACH64_PRIM_POLYGON ) { - DRM_ERROR( "buffer prim %d\n", vertex.prim ); - return DRM_ERR(EINVAL); - } - - if ( vertex.used > MACH64_BUFFER_SIZE || (vertex.used & 3) != 0) { - DRM_ERROR( "Invalid vertex buffer size: %lu bytes\n", vertex.used ); - return DRM_ERR(EINVAL); - } - - if ( sarea_priv->nbox > MACH64_NR_SAREA_CLIPRECTS ) - sarea_priv->nbox = MACH64_NR_SAREA_CLIPRECTS; - - return mach64_dma_dispatch_vertex( filp, dev, vertex.prim, vertex.buf, - vertex.used, vertex.discard ); -} - -int mach64_dma_blit( DRM_IOCTL_ARGS ) -{ - DRM_DEVICE; - drm_device_dma_t *dma = dev->dma; - drm_mach64_private_t *dev_priv = dev->dev_private; - drm_mach64_sarea_t *sarea_priv = dev_priv->sarea_priv; - drm_mach64_blit_t blit; - int ret; - - LOCK_TEST_WITH_RETURN( dev, filp ); - - DRM_COPY_FROM_USER_IOCTL( blit, (drm_mach64_blit_t *)data, - sizeof(blit) ); - - DRM_DEBUG( "%s: pid=%d index=%d\n", - __FUNCTION__, DRM_CURRENTPID, blit.idx ); - - if ( blit.idx < 0 || blit.idx >= dma->buf_count ) { - DRM_ERROR( "buffer index %d (of %d max)\n", - blit.idx, dma->buf_count - 1 ); - return DRM_ERR(EINVAL); - } - - ret = mach64_dma_dispatch_blit( filp, dev, &blit ); - - /* Make sure we restore the 3D state next time. - */ - sarea_priv->dirty |= (MACH64_UPLOAD_CONTEXT | - MACH64_UPLOAD_MISC | - MACH64_UPLOAD_CLIPRECTS); - - return ret; -} - -int mach64_get_param( DRM_IOCTL_ARGS ) -{ - DRM_DEVICE; - drm_mach64_private_t *dev_priv = dev->dev_private; - drm_mach64_getparam_t param; - int value; - - DRM_DEBUG( "%s\n", __FUNCTION__ ); - - if ( !dev_priv ) { - DRM_ERROR( "%s called with no initialization\n", __FUNCTION__ ); - return DRM_ERR(EINVAL); - } - - DRM_COPY_FROM_USER_IOCTL( param, (drm_mach64_getparam_t *)data, - sizeof(param) ); - - switch ( param.param ) { - case MACH64_PARAM_FRAMES_QUEUED: - /* Needs lock since it calls mach64_ring_tick() */ - LOCK_TEST_WITH_RETURN( dev, filp ); - value = mach64_do_get_frames_queued( dev_priv ); - break; - case MACH64_PARAM_IRQ_NR: - value = dev->irq; - break; - default: - return DRM_ERR(EINVAL); - } - - if ( DRM_COPY_TO_USER( param.value, &value, sizeof(int) ) ) { - DRM_ERROR( "copy_to_user\n" ); - return DRM_ERR(EFAULT); - } - - return 0; -} |