/* r128_state.c -- State support for r128 -*- linux-c -*- * Created: Thu Jan 27 02:53:43 2000 by gareth@valinux.com * * 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 * PRECISION INSIGHT 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: * Gareth Hughes */ #define __NO_VERSION__ #include "r128.h" #include "drmP.h" #include "r128_drv.h" #include "drm.h" #include /* ================================================================ * CCE hardware state programming functions */ static void r128_emit_clip_rects( drm_r128_private_t *dev_priv, drm_clip_rect_t *boxes, int count ) { u32 aux_sc_cntl = 0x00000000; RING_LOCALS; DRM_DEBUG( " %s\n", __FUNCTION__ ); BEGIN_RING( 17 ); if ( count >= 1 ) { OUT_RING( CCE_PACKET0( R128_AUX1_SC_LEFT, 3 ) ); OUT_RING( boxes[0].x1 ); OUT_RING( boxes[0].x2 - 1 ); OUT_RING( boxes[0].y1 ); OUT_RING( boxes[0].y2 - 1 ); aux_sc_cntl |= (R128_AUX1_SC_EN | R128_AUX1_SC_MODE_OR); } if ( count >= 2 ) { OUT_RING( CCE_PACKET0( R128_AUX2_SC_LEFT, 3 ) ); OUT_RING( boxes[1].x1 ); OUT_RING( boxes[1].x2 - 1 ); OUT_RING( boxes[1].y1 ); OUT_RING( boxes[1].y2 - 1 ); aux_sc_cntl |= (R128_AUX2_SC_EN | R128_AUX2_SC_MODE_OR); } if ( count >= 3 ) { OUT_RING( CCE_PACKET0( R128_AUX3_SC_LEFT, 3 ) ); OUT_RING( boxes[2].x1 ); OUT_RING( boxes[2].x2 - 1 ); OUT_RING( boxes[2].y1 ); OUT_RING( boxes[2].y2 - 1 ); aux_sc_cntl |= (R128_AUX3_SC_EN | R128_AUX3_SC_MODE_OR); } OUT_RING( CCE_PACKET0( R128_AUX_SC_CNTL, 0 ) ); OUT_RING( aux_sc_cntl ); ADVANCE_RING(); } static inline void r128_emit_core( drm_r128_private_t *dev_priv ) { drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv; drm_r128_context_regs_t *ctx = &sarea_priv->context_state; RING_LOCALS; DRM_DEBUG( " %s\n", __FUNCTION__ ); BEGIN_RING( 2 ); OUT_RING( CCE_PACKET0( R128_SCALE_3D_CNTL, 0 ) ); OUT_RING( ctx->scale_3d_cntl ); ADVANCE_RING(); } static inline void r128_emit_context( drm_r128_private_t *dev_priv ) { drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv; drm_r128_context_regs_t *ctx = &sarea_priv->context_state; RING_LOCALS; DRM_DEBUG( " %s\n", __FUNCTION__ ); BEGIN_RING( 13 ); OUT_RING( CCE_PACKET0( R128_DST_PITCH_OFFSET_C, 11 ) ); OUT_RING( ctx->dst_pitch_offset_c ); OUT_RING( ctx->dp_gui_master_cntl_c ); OUT_RING( ctx->sc_top_left_c ); OUT_RING( ctx->sc_bottom_right_c ); OUT_RING( ctx->z_offset_c ); OUT_RING( ctx->z_pitch_c ); OUT_RING( ctx->z_sten_cntl_c ); OUT_RING( ctx->tex_cntl_c ); OUT_RING( ctx->misc_3d_state_cntl_reg ); OUT_RING( ctx->texture_clr_cmp_clr_c ); OUT_RING( ctx->texture_clr_cmp_msk_c ); OUT_RING( ctx->fog_color_c ); ADVANCE_RING(); } static inline void r128_emit_setup( drm_r128_private_t *dev_priv ) { drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv; drm_r128_context_regs_t *ctx = &sarea_priv->context_state; RING_LOCALS; DRM_DEBUG( " %s\n", __FUNCTION__ ); BEGIN_RING( 3 ); OUT_RING( CCE_PACKET1( R128_SETUP_CNTL, R128_PM4_VC_FPU_SETUP ) ); OUT_RING( ctx->setup_cntl ); OUT_RING( ctx->pm4_vc_fpu_setup ); ADVANCE_RING(); } static inline void r128_emit_masks( drm_r128_private_t *dev_priv ) { drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv; drm_r128_context_regs_t *ctx = &sarea_priv->context_state; RING_LOCALS; DRM_DEBUG( " %s\n", __FUNCTION__ ); BEGIN_RING( 5 ); OUT_RING( CCE_PACKET0( R128_DP_WRITE_MASK, 0 ) ); OUT_RING( ctx->dp_write_mask ); OUT_RING( CCE_PACKET0( R128_STEN_REF_MASK_C, 1 ) ); OUT_RING( ctx->sten_ref_mask_c ); OUT_RING( ctx->plane_3d_mask_c ); ADVANCE_RING(); } static inline void r128_emit_window( drm_r128_private_t *dev_priv ) { drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv; drm_r128_context_regs_t *ctx = &sarea_priv->context_state; RING_LOCALS; DRM_DEBUG( " %s\n", __FUNCTION__ ); BEGIN_RING( 2 ); OUT_RING( CCE_PACKET0( R128_WINDOW_XY_OFFSET, 0 ) ); OUT_RING( ctx->window_xy_offset ); ADVANCE_RING(); } static inline void r128_emit_tex0( drm_r128_private_t *dev_priv ) { drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv; drm_r128_context_regs_t *ctx = &sarea_priv->context_state; drm_r128_texture_regs_t *tex = &sarea_priv->tex_state[0]; int i; RING_LOCALS; DRM_DEBUG( " %s\n", __FUNCTION__ ); BEGIN_RING( 7 + R128_MAX_TEXTURE_LEVELS ); OUT_RING( CCE_PACKET0( R128_PRIM_TEX_CNTL_C, 2 + R128_MAX_TEXTURE_LEVELS ) ); OUT_RING( tex->tex_cntl ); OUT_RING( tex->tex_combine_cntl ); OUT_RING( ctx->tex_size_pitch_c ); for ( i = 0 ; i < R128_MAX_TEXTURE_LEVELS ; i++ ) { OUT_RING( tex->tex_offset[i] ); } OUT_RING( CCE_PACKET0( R128_CONSTANT_COLOR_C, 1 ) ); OUT_RING( ctx->constant_color_c ); OUT_RING( tex->tex_border_color ); ADVANCE_RING(); } static inline void r128_emit_tex1( drm_r128_private_t *dev_priv ) { drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv; drm_r128_texture_regs_t *tex = &sarea_priv->tex_state[1]; int i; RING_LOCALS; DRM_DEBUG( " %s\n", __FUNCTION__ ); BEGIN_RING( 5 + R128_MAX_TEXTURE_LEVELS ); OUT_RING( CCE_PACKET0( R128_SEC_TEX_CNTL_C, 1 + R128_MAX_TEXTURE_LEVELS ) ); OUT_RING( tex->tex_cntl ); OUT_RING( tex->tex_combine_cntl ); for ( i = 0 ; i < R128_MAX_TEXTURE_LEVELS ; i++ ) { OUT_RING( tex->tex_offset[i] ); } OUT_RING( CCE_PACKET0( R128_SEC_TEXTURE_BORDER_COLOR_C, 0 ) ); OUT_RING( tex->tex_border_color ); ADVANCE_RING(); } static inline void r128_emit_state( drm_r128_private_t *dev_priv ) { drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv; unsigned int dirty = sarea_priv->dirty; DRM_DEBUG( "%s: dirty=0x%08x\n", __FUNCTION__, dirty ); if ( dirty & R128_UPLOAD_CORE ) { r128_emit_core( dev_priv ); sarea_priv->dirty &= ~R128_UPLOAD_CORE; } if ( dirty & R128_UPLOAD_CONTEXT ) { r128_emit_context( dev_priv ); sarea_priv->dirty &= ~R128_UPLOAD_CONTEXT; } if ( dirty & R128_UPLOAD_SETUP ) { r128_emit_setup( dev_priv ); sarea_priv->dirty &= ~R128_UPLOAD_SETUP; } if ( dirty & R128_UPLOAD_MASKS ) { r128_emit_masks( dev_priv ); sarea_priv->dirty &= ~R128_UPLOAD_MASKS; } if ( dirty & R128_UPLOAD_WINDOW ) { r128_emit_window( dev_priv ); sarea_priv->dirty &= ~R128_UPLOAD_WINDOW; } if ( dirty & R128_UPLOAD_TEX0 ) { r128_emit_tex0( dev_priv ); sarea_priv->dirty &= ~R128_UPLOAD_TEX0; } if ( dirty & R128_UPLOAD_TEX1 ) { r128_emit_tex1( dev_priv ); sarea_priv->dirty &= ~R128_UPLOAD_TEX1; } /* Turn off the texture cache flushing */ sarea_priv->context_state.tex_cntl_c &= ~R128_TEX_CACHE_FLUSH; sarea_priv->dirty &= ~R128_REQUIRE_QUIESCENCE; } #if R128_PERFORMANCE_BOXES /* ================================================================ * Performance monitoring functions */ static void r128_clear_box( drm_r128_private_t *dev_priv, int x, int y, int w, int h, int r, int g, int b ) { u32 pitch, offset; u32 fb_bpp, color; RING_LOCALS; switch ( dev_priv->fb_bpp ) { case 16: fb_bpp = R128_GMC_DST_16BPP; color = (((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3)); break; case 24: fb_bpp = R128_GMC_DST_24BPP; color = ((r << 16) | (g << 8) | b); break; case 32: fb_bpp = R128_GMC_DST_32BPP; color = (((0xff) << 24) | (r << 16) | (g << 8) | b); break; default: return; } offset = dev_priv->back_offset; pitch = dev_priv->back_pitch >> 3; BEGIN_RING( 6 ); OUT_RING( CCE_PACKET3( R128_CNTL_PAINT_MULTI, 4 ) ); OUT_RING( R128_GMC_DST_PITCH_OFFSET_CNTL | R128_GMC_BRUSH_SOLID_COLOR | fb_bpp | R128_GMC_SRC_DATATYPE_COLOR | R128_ROP3_P | R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_AUX_CLIP_DIS ); OUT_RING( (pitch << 21) | (offset >> 5) ); OUT_RING( color ); OUT_RING( (x << 16) | y ); OUT_RING( (w << 16) | h ); ADVANCE_RING(); } static void r128_cce_performance_boxes( drm_r128_private_t *dev_priv ) { if ( atomic_read( &dev_priv->idle_count ) == 0 ) { r128_clear_box( dev_priv, 64, 4, 8, 8, 0, 255, 0 ); } else { atomic_set( &dev_priv->idle_count, 0 ); } } #endif /* ================================================================ * CCE command dispatch functions */ static void r128_print_dirty( const char *msg, unsigned int flags ) { DRM_INFO( "%s: (0x%x) %s%s%s%s%s%s%s%s%s\n", msg, flags, (flags & R128_UPLOAD_CORE) ? "core, " : "", (flags & R128_UPLOAD_CONTEXT) ? "context, " : "", (flags & R128_UPLOAD_SETUP) ? "setup, " : "", (flags & R128_UPLOAD_TEX0) ? "tex0, " : "", (flags & R128_UPLOAD_TEX1) ? "tex1, " : "", (flags & R128_UPLOAD_MASKS) ? "masks, " : "", (flags & R128_UPLOAD_WINDOW) ? "window, " : "", (flags & R128_UPLOAD_CLIPRECTS) ? "cliprects, " : "", (flags & R128_REQUIRE_QUIESCENCE) ? "quiescence, " : "" ); } static void r128_cce_dispatch_clear( drm_device_t *dev, drm_r128_clear_t *clear ) { drm_r128_private_t *dev_priv = dev->dev_private; drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv; int nbox = sarea_priv->nbox; drm_clip_rect_t *pbox = sarea_priv->boxes; unsigned int flags = clear->flags; int i; RING_LOCALS; DRM_DEBUG( "%s\n", __FUNCTION__ ); if ( dev_priv->page_flipping && dev_priv->current_page == 1 ) { unsigned int tmp = flags; flags &= ~(R128_FRONT | R128_BACK); if ( tmp & R128_FRONT ) flags |= R128_BACK; if ( tmp & R128_BACK ) flags |= R128_FRONT; } 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 & (R128_FRONT | R128_BACK) ) { BEGIN_RING( 2 ); OUT_RING( CCE_PACKET0( R128_DP_WRITE_MASK, 0 ) ); OUT_RING( clear->color_mask ); ADVANCE_RING(); } if ( flags & R128_FRONT ) { BEGIN_RING( 6 ); OUT_RING( CCE_PACKET3( R128_CNTL_PAINT_MULTI, 4 ) ); OUT_RING( R128_GMC_DST_PITCH_OFFSET_CNTL | R128_GMC_BRUSH_SOLID_COLOR | (dev_priv->color_fmt << 8) | R128_GMC_SRC_DATATYPE_COLOR | R128_ROP3_P | R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_AUX_CLIP_DIS ); OUT_RING( dev_priv->front_pitch_offset_c ); OUT_RING( clear->clear_color ); OUT_RING( (x << 16) | y ); OUT_RING( (w << 16) | h ); ADVANCE_RING(); } if ( flags & R128_BACK ) { BEGIN_RING( 6 ); OUT_RING( CCE_PACKET3( R128_CNTL_PAINT_MULTI, 4 ) ); OUT_RING( R128_GMC_DST_PITCH_OFFSET_CNTL | R128_GMC_BRUSH_SOLID_COLOR | (dev_priv->color_fmt << 8) | R128_GMC_SRC_DATATYPE_COLOR | R128_ROP3_P | R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_AUX_CLIP_DIS ); OUT_RING( dev_priv->back_pitch_offset_c ); OUT_RING( clear->clear_color ); OUT_RING( (x << 16) | y ); OUT_RING( (w << 16) | h ); ADVANCE_RING(); } if ( flags & R128_DEPTH ) { BEGIN_RING( 6 ); OUT_RING( CCE_PACKET3( R128_CNTL_PAINT_MULTI, 4 ) ); OUT_RING( R128_GMC_DST_PITCH_OFFSET_CNTL | R128_GMC_BRUSH_SOLID_COLOR | (dev_priv->depth_fmt << 8) | R128_GMC_SRC_DATATYPE_COLOR | R128_ROP3_P | R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_AUX_CLIP_DIS | R128_GMC_WR_MSK_DIS ); OUT_RING( dev_priv->depth_pitch_offset_c ); OUT_RING( clear->clear_depth ); OUT_RING( (x << 16) | y ); OUT_RING( (w << 16) | h ); ADVANCE_RING(); } } } static void r128_cce_dispatch_swap( drm_device_t *dev ) { drm_r128_private_t *dev_priv = dev->dev_private; drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv; int nbox = sarea_priv->nbox; drm_clip_rect_t *pbox = sarea_priv->boxes; int i; RING_LOCALS; DRM_DEBUG( "%s\n", __FUNCTION__ ); #if R128_PERFORMANCE_BOXES /* Do some trivial performance monitoring... */ r128_cce_performance_boxes( dev_priv ); #endif 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; BEGIN_RING( 7 ); OUT_RING( CCE_PACKET3( R128_CNTL_BITBLT_MULTI, 5 ) ); OUT_RING( R128_GMC_SRC_PITCH_OFFSET_CNTL | R128_GMC_DST_PITCH_OFFSET_CNTL | R128_GMC_BRUSH_NONE | (dev_priv->color_fmt << 8) | R128_GMC_SRC_DATATYPE_COLOR | R128_ROP3_S | R128_DP_SRC_SOURCE_MEMORY | R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_AUX_CLIP_DIS | R128_GMC_WR_MSK_DIS ); OUT_RING( dev_priv->back_pitch_offset_c ); OUT_RING( dev_priv->front_pitch_offset_c ); OUT_RING( (x << 16) | y ); OUT_RING( (x << 16) | y ); OUT_RING( (w << 16) | h ); ADVANCE_RING(); } /* Increment the frame counter. The client-side 3D driver must * throttle the framerate by waiting for this value before * performing the swapbuffer ioctl. */ dev_priv->sarea_priv->last_frame++; BEGIN_RING( 2 ); OUT_RING( CCE_PACKET0( R128_LAST_FRAME_REG, 0 ) ); OUT_RING( dev_priv->sarea_priv->last_frame ); ADVANCE_RING(); } static void r128_cce_dispatch_flip( drm_device_t *dev ) { drm_r128_private_t *dev_priv = dev->dev_private; RING_LOCALS; DRM_DEBUG( "%s: page=%d\n", __FUNCTION__, dev_priv->current_page ); #if R128_PERFORMANCE_BOXES /* Do some trivial performance monitoring... */ r128_cce_performance_boxes( dev_priv ); #endif BEGIN_RING( 4 ); R128_WAIT_UNTIL_PAGE_FLIPPED(); OUT_RING( CCE_PACKET0( R128_CRTC_OFFSET, 0 ) ); if ( dev_priv->current_page == 0 ) { OUT_RING( dev_priv->back_offset ); dev_priv->current_page = 1; } else { OUT_RING( dev_priv->front_offset ); dev_priv->current_page = 0; } ADVANCE_RING(); /* Increment the frame counter. The client-side 3D driver must * throttle the framerate by waiting for this value before * performing the swapbuffer ioctl. */ dev_priv->sarea_priv->last_frame++; BEGIN_RING( 2 ); OUT_RING( CCE_PACKET0( R128_LAST_FRAME_REG, 0 ) ); OUT_RING( dev_priv->sarea_priv->last_frame ); ADVANCE_RING(); } static void r128_cce_dispatch_vertex( drm_device_t *dev, drm_buf_t *buf ) { drm_r128_private_t *dev_priv = dev->dev_private; drm_r128_buf_priv_t *buf_priv = buf->dev_private; drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv; int format = sarea_priv->vc_format; int offset = buf->bus_address; int size = buf->used; int prim = buf_priv->prim; int i = 0; RING_LOCALS; DRM_DEBUG( "%s: buf=%d nbox=%d\n", __FUNCTION__, buf->idx, sarea_priv->nbox ); if ( 0 ) r128_print_dirty( "dispatch_vertex", sarea_priv->dirty ); if ( buf->used ) { buf_priv->dispatched = 1; if ( sarea_priv->dirty & ~R128_UPLOAD_CLIPRECTS ) { r128_emit_state( dev_priv ); } do { /* Emit the next set of up to three cliprects */ if ( i < sarea_priv->nbox ) { r128_emit_clip_rects( dev_priv, &sarea_priv->boxes[i], sarea_priv->nbox - i ); } /* Emit the vertex buffer rendering commands */ BEGIN_RING( 5 ); OUT_RING( CCE_PACKET3( R128_3D_RNDR_GEN_INDX_PRIM, 3 ) ); OUT_RING( offset ); OUT_RING( size ); OUT_RING( format ); OUT_RING( prim | R128_CCE_VC_CNTL_PRIM_WALK_LIST | (size << R128_CCE_VC_CNTL_NUM_SHIFT) ); ADVANCE_RING(); i += 3; } while ( i < sarea_priv->nbox ); } if ( buf_priv->discard ) { buf_priv->age = dev_priv->sarea_priv->last_dispatch; /* Emit the vertex buffer age */ BEGIN_RING( 2 ); OUT_RING( CCE_PACKET0( R128_LAST_DISPATCH_REG, 0 ) ); OUT_RING( buf_priv->age ); ADVANCE_RING(); buf->pending = 1; buf->used = 0; /* FIXME: Check dispatched field */ buf_priv->dispatched = 0; } dev_priv->sarea_priv->last_dispatch++; sarea_priv->dirty &= ~R128_UPLOAD_CLIPRECTS; sarea_priv->nbox = 0; } static void r128_cce_dispatch_indirect( drm_device_t *dev, drm_buf_t *buf, int start, int end ) { drm_r128_private_t *dev_priv = dev->dev_private; drm_r128_buf_priv_t *buf_priv = buf->dev_private; RING_LOCALS; DRM_DEBUG( "indirect: buf=%d s=0x%x e=0x%x\n", buf->idx, start, end ); if ( start != end ) { int offset = buf->bus_address + start; int dwords = (end - start + 3) / sizeof(u32); /* Indirect buffer data must be an even number of * dwords, so if we've been given an odd number we must * pad the data with a Type-2 CCE packet. */ if ( dwords & 1 ) { u32 *data = (u32 *) ((char *)dev_priv->buffers->handle + buf->offset + start); data[dwords++] = cpu_to_le32( R128_CCE_PACKET2 ); } buf_priv->dispatched = 1; /* Fire off the indirect buffer */ BEGIN_RING( 3 ); OUT_RING( CCE_PACKET0( R128_PM4_IW_INDOFF, 1 ) ); OUT_RING( offset ); OUT_RING( dwords ); ADVANCE_RING(); } if ( buf_priv->discard ) { buf_priv->age = dev_priv->sarea_priv->last_dispatch; /* Emit the indirect buffer age */ BEGIN_RING( 2 ); OUT_RING( CCE_PACKET0( R128_LAST_DISPATCH_REG, 0 ) ); OUT_RING( buf_priv->age ); ADVANCE_RING(); buf->pending = 1; buf->used = 0; /* FIXME: Check dispatched field */ buf_priv->dispatched = 0; } dev_priv->sarea_priv->last_dispatch++; } static void r128_cce_dispatch_indices( drm_device_t *dev, drm_buf_t *buf, int start, int end, int count ) { drm_r128_private_t *dev_priv = dev->dev_private; drm_r128_buf_priv_t *buf_priv = buf->dev_private; drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv; int format = sarea_priv->vc_format; int offset = dev_priv->buffers->offset - dev_priv->cce_buffers_offset; int prim = buf_priv->prim; u32 *data; int dwords; int i = 0; RING_LOCALS; DRM_DEBUG( "indices: s=%d e=%d c=%d\n", start, end, count ); if ( 0 ) r128_print_dirty( "dispatch_indices", sarea_priv->dirty ); if ( start != end ) { buf_priv->dispatched = 1; if ( sarea_priv->dirty & ~R128_UPLOAD_CLIPRECTS ) { r128_emit_state( dev_priv ); } dwords = (end - start + 3) / sizeof(u32); data = (u32 *)((char *)dev_priv->buffers->handle + buf->offset + start); data[0] = cpu_to_le32( CCE_PACKET3( R128_3D_RNDR_GEN_INDX_PRIM, dwords-2 ) ); data[1] = cpu_to_le32( offset ); data[2] = cpu_to_le32( R128_MAX_VB_VERTS ); data[3] = cpu_to_le32( format ); data[4] = cpu_to_le32( (prim | R128_CCE_VC_CNTL_PRIM_WALK_IND | (count << 16)) ); if ( count & 0x1 ) { #ifdef __LITTLE_ENDIAN data[dwords-1] &= 0x0000ffff; #else data[dwords-1] &= 0xffff0000; #endif } do { /* Emit the next set of up to three cliprects */ if ( i < sarea_priv->nbox ) { r128_emit_clip_rects( dev_priv, &sarea_priv->boxes[i], sarea_priv->nbox - i ); } r128_cce_dispatch_indirect( dev, buf, start, end ); i += 3; } while ( i < sarea_priv->nbox ); } if ( buf_priv->discard ) { buf_priv->age = dev_priv->sarea_priv->last_dispatch; /* Emit the vertex buffer age */ BEGIN_RING( 2 ); OUT_RING( CCE_PACKET0( R128_LAST_DISPATCH_REG, 0 ) ); OUT_RING( buf_priv->age ); ADVANCE_RING(); buf->pending = 1; /* FIXME: Check dispatched field */ buf_priv->dispatched = 0; } dev_priv->sarea_priv->last_dispatch++; sarea_priv->dirty &= ~R128_UPLOAD_CLIPRECTS; sarea_priv->nbox = 0; } static int r128_cce_dispatch_blit( drm_device_t *dev, drm_r128_blit_t *blit ) { drm_r128_private_t *dev_priv = dev->dev_private; drm_device_dma_t *dma = dev->dma; drm_buf_t *buf; drm_r128_buf_priv_t *buf_priv; u32 *data; int dword_shift, dwords; RING_LOCALS; DRM_DEBUG( "%s\n", __FUNCTION__ ); /* 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 R128_DATATYPE_ARGB8888: dword_shift = 0; break; case R128_DATATYPE_ARGB1555: case R128_DATATYPE_RGB565: case R128_DATATYPE_ARGB4444: dword_shift = 1; break; case R128_DATATYPE_CI8: case R128_DATATYPE_RGB8: dword_shift = 2; break; default: DRM_ERROR( "invalid blit format %d\n", blit->format ); return -EINVAL; } /* Flush the pixel cache, and mark the contents as Read Invalid. * This ensures no pixel data gets mixed up with the texture * data from the host data blit, otherwise part of the texture * image may be corrupted. */ BEGIN_RING( 2 ); OUT_RING( CCE_PACKET0( R128_PC_GUI_CTLSTAT, 0 ) ); OUT_RING( R128_PC_RI_GUI | R128_PC_FLUSH_GUI ); ADVANCE_RING(); /* Dispatch the indirect buffer. */ buf = dma->buflist[blit->idx]; buf_priv = buf->dev_private; if ( buf->pid != current->pid ) { DRM_ERROR( "process %d using buffer owned by %d\n", current->pid, buf->pid ); return -EINVAL; } if ( buf->pending ) { DRM_ERROR( "sending pending buffer %d\n", blit->idx ); return -EINVAL; } buf_priv->discard = 1; dwords = (blit->width * blit->height) >> dword_shift; data = (u32 *)((char *)dev_priv->buffers->handle + buf->offset); data[0] = cpu_to_le32( CCE_PACKET3( R128_CNTL_HOSTDATA_BLT, dwords + 6 ) ); data[1] = cpu_to_le32( (R128_GMC_DST_PITCH_OFFSET_CNTL | R128_GMC_BRUSH_NONE | (blit->format << 8) | R128_GMC_SRC_DATATYPE_COLOR | R128_ROP3_S | R128_DP_SRC_SOURCE_HOST_DATA | R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_AUX_CLIP_DIS | R128_GMC_WR_MSK_DIS) ); data[2] = cpu_to_le32( (blit->pitch << 21) | (blit->offset >> 5) ); data[3] = cpu_to_le32( 0xffffffff ); data[4] = cpu_to_le32( 0xffffffff ); data[5] = cpu_to_le32( (blit->y << 16) | blit->x ); data[6] = cpu_to_le32( (blit->height << 16) | blit->width ); data[7] = cpu_to_le32( dwords ); buf->used = (dwords + 8) * sizeof(u32); r128_cce_dispatch_indirect( dev, buf, 0, buf->used ); /* Flush the pixel cache after the blit completes. This ensures * the texture data is written out to memory before rendering * continues. */ BEGIN_RING( 2 ); OUT_RING( CCE_PACKET0( R128_PC_GUI_CTLSTAT, 0 ) ); OUT_RING( R128_PC_FLUSH_GUI ); ADVANCE_RING(); return 0; } /* ================================================================ * Tiled depth buffer management * * FIXME: These should all set the destination write mask for when we * have hardware stencil support. */ static int r128_cce_dispatch_write_span( drm_device_t *dev, drm_r128_depth_t *depth ) { drm_r128_private_t *dev_priv = dev->dev_private; int count, x, y; u32 *buffer; u8 *mask; int i; RING_LOCALS; DRM_DEBUG( "%s\n", __FUNCTION__ ); count = depth->n; if ( copy_from_user( &x, depth->x, sizeof(x) ) ) { return -EFAULT; } if ( copy_from_user( &y, depth->y, sizeof(y) ) ) { return -EFAULT; } buffer = kmalloc( depth->n * sizeof(u32), GFP_KERNEL ); if ( buffer == NULL ) return -ENOMEM; if ( copy_from_user( buffer, depth->buffer, depth->n * sizeof(u32) ) ) { kfree( buffer ); return -EFAULT; } if ( depth->mask ) { mask = kmalloc( depth->n * sizeof(u8), GFP_KERNEL ); if ( mask == NULL ) { kfree( buffer ); return -ENOMEM; } if ( copy_from_user( mask, depth->mask, depth->n * sizeof(u8) ) ) { kfree( buffer ); kfree( mask ); return -EFAULT; } for ( i = 0 ; i < count ; i++, x++ ) { if ( mask[i] ) { BEGIN_RING( 6 ); OUT_RING( CCE_PACKET3( R128_CNTL_PAINT_MULTI, 4 ) ); OUT_RING( R128_GMC_DST_PITCH_OFFSET_CNTL | R128_GMC_BRUSH_SOLID_COLOR | (dev_priv->depth_fmt << 8) | R128_GMC_SRC_DATATYPE_COLOR | R128_ROP3_P | R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_WR_MSK_DIS ); OUT_RING( dev_priv->depth_pitch_offset_c ); OUT_RING( buffer[i] ); OUT_RING( (x << 16) | y ); OUT_RING( (1 << 16) | 1 ); ADVANCE_RING(); } } kfree( mask ); } else { for ( i = 0 ; i < count ; i++, x++ ) { BEGIN_RING( 6 ); OUT_RING( CCE_PACKET3( R128_CNTL_PAINT_MULTI, 4 ) ); OUT_RING( R128_GMC_DST_PITCH_OFFSET_CNTL | R128_GMC_BRUSH_SOLID_COLOR | (dev_priv->depth_fmt << 8) | R128_GMC_SRC_DATATYPE_COLOR | R128_ROP3_P | R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_WR_MSK_DIS ); OUT_RING( dev_priv->depth_pitch_offset_c ); OUT_RING( buffer[i] ); OUT_RING( (x << 16) | y ); OUT_RING( (1 << 16) | 1 ); ADVANCE_RING(); } } kfree( buffer ); return 0; } static int r128_cce_dispatch_write_pixels( drm_device_t *dev, drm_r128_depth_t *depth ) { drm_r128_private_t *dev_priv = dev->dev_private; int count, *x, *y; u32 *buffer; u8 *mask; int i; RING_LOCALS; DRM_DEBUG( "%s\n", __FUNCTION__ ); count = depth->n; x = kmalloc( count * sizeof(*x), GFP_KERNEL ); if ( x == NULL ) { return -ENOMEM; } y = kmalloc( count * sizeof(*y), GFP_KERNEL ); if ( y == NULL ) { kfree( x ); return -ENOMEM; } if ( copy_from_user( x, depth->x, count * sizeof(int) ) ) { kfree( x ); kfree( y ); return -EFAULT; } if ( copy_from_user( y, depth->y, count * sizeof(int) ) ) { kfree( x ); kfree( y ); return -EFAULT; } buffer = kmalloc( depth->n * sizeof(u32), GFP_KERNEL ); if ( buffer == NULL ) { kfree( x ); kfree( y ); return -ENOMEM; } if ( copy_from_user( buffer, depth->buffer, depth->n * sizeof(u32) ) ) { kfree( x ); kfree( y ); kfree( buffer ); return -EFAULT; } if ( depth->mask ) { mask = kmalloc( depth->n * sizeof(u8), GFP_KERNEL ); if ( mask == NULL ) { kfree( x ); kfree( y ); kfree( buffer ); return -ENOMEM; } if ( copy_from_user( mask, depth->mask, depth->n * sizeof(u8) ) ) { kfree( x ); kfree( y ); kfree( buffer ); kfree( mask ); return -EFAULT; } for ( i = 0 ; i < count ; i++ ) { if ( mask[i] ) { BEGIN_RING( 6 ); OUT_RING( CCE_PACKET3( R128_CNTL_PAINT_MULTI, 4 ) ); OUT_RING( R128_GMC_DST_PITCH_OFFSET_CNTL | R128_GMC_BRUSH_SOLID_COLOR | (dev_priv->depth_fmt << 8) | R128_GMC_SRC_DATATYPE_COLOR | R128_ROP3_P | R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_WR_MSK_DIS ); OUT_RING( dev_priv->depth_pitch_offset_c ); OUT_RING( buffer[i] ); OUT_RING( (x[i] << 16) | y[i] ); OUT_RING( (1 << 16) | 1 ); ADVANCE_RING(); } } kfree( mask ); } else { for ( i = 0 ; i < count ; i++ ) { BEGIN_RING( 6 ); OUT_RING( CCE_PACKET3( R128_CNTL_PAINT_MULTI, 4 ) ); OUT_RING( R128_GMC_DST_PITCH_OFFSET_CNTL | R128_GMC_BRUSH_SOLID_COLOR | (dev_priv->depth_fmt << 8) | R128_GMC_SRC_DATATYPE_COLOR | R128_ROP3_P | R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_WR_MSK_DIS ); OUT_RING( dev_priv->depth_pitch_offset_c ); OUT_RING( buffer[i] ); OUT_RING( (x[i] << 16) | y[i] ); OUT_RING( (1 << 16) | 1 ); ADVANCE_RING(); } } kfree( x ); kfree( y ); kfree( buffer ); return 0; } static int r128_cce_dispatch_read_span( drm_device_t *dev, drm_r128_depth_t *depth ) { drm_r128_private_t *dev_priv = dev->dev_private; int count, x, y; RING_LOCALS; DRM_DEBUG( "%s\n", __FUNCTION__ ); count = depth->n; if ( copy_from_user( &x, depth->x, sizeof(x) ) ) { return -EFAULT; } if ( copy_from_user( &y, depth->y, sizeof(y) ) ) { return -EFAULT; } BEGIN_RING( 7 ); OUT_RING( CCE_PACKET3( R128_CNTL_BITBLT_MULTI, 5 ) ); OUT_RING( R128_GMC_SRC_PITCH_OFFSET_CNTL | R128_GMC_DST_PITCH_OFFSET_CNTL | R128_GMC_BRUSH_NONE | (dev_priv->depth_fmt << 8) | R128_GMC_SRC_DATATYPE_COLOR | R128_ROP3_S | R128_DP_SRC_SOURCE_MEMORY | R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_WR_MSK_DIS ); OUT_RING( dev_priv->depth_pitch_offset_c ); OUT_RING( dev_priv->span_pitch_offset_c ); OUT_RING( (x << 16) | y ); OUT_RING( (0 << 16) | 0 ); OUT_RING( (count << 16) | 1 ); ADVANCE_RING(); return 0; } static int r128_cce_dispatch_read_pixels( drm_device_t *dev, drm_r128_depth_t *depth ) { drm_r128_private_t *dev_priv = dev->dev_private; int count, *x, *y; int i; RING_LOCALS; DRM_DEBUG( "%s\n", __FUNCTION__ ); count = depth->n; if ( count > dev_priv->depth_pitch ) { count = dev_priv->depth_pitch; } x = kmalloc( count * sizeof(*x), GFP_KERNEL ); if ( x == NULL ) { return -ENOMEM; } y = kmalloc( count * sizeof(*y), GFP_KERNEL ); if ( y == NULL ) { kfree( x ); return -ENOMEM; } if ( copy_from_user( x, depth->x, count * sizeof(int) ) ) { kfree( x ); kfree( y ); return -EFAULT; } if ( copy_from_user( y, depth->y, count * sizeof(int) ) ) { kfree( x ); kfree( y ); return -EFAULT; } for ( i = 0 ; i < count ; i++ ) { BEGIN_RING( 7 ); OUT_RING( CCE_PACKET3( R128_CNTL_BITBLT_MULTI, 5 ) ); OUT_RING( R128_GMC_SRC_PITCH_OFFSET_CNTL | R128_GMC_DST_PITCH_OFFSET_CNTL | R128_GMC_BRUSH_NONE | (dev_priv->depth_fmt << 8) | R128_GMC_SRC_DATATYPE_COLOR | R128_ROP3_S | R128_DP_SRC_SOURCE_MEMORY | R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_WR_MSK_DIS ); OUT_RING( dev_priv->depth_pitch_offset_c ); OUT_RING( dev_priv->span_pitch_offset_c ); OUT_RING( (x[i] << 16) | y[i] ); OUT_RING( (i << 16) | 0 ); OUT_RING( (1 << 16) | 1 ); ADVANCE_RING(); } kfree( x ); kfree( y ); return 0; } /* ================================================================ * Polygon stipple */ static void r128_cce_dispatch_stipple( drm_device_t *dev, u32 *stipple ) { drm_r128_private_t *dev_priv = dev->dev_private; int i; RING_LOCALS; DRM_DEBUG( "%s\n", __FUNCTION__ ); BEGIN_RING( 33 ); OUT_RING( CCE_PACKET0( R128_BRUSH_DATA0, 31 ) ); for ( i = 0 ; i < 32 ; i++ ) { OUT_RING( stipple[i] ); } ADVANCE_RING(); } /* ================================================================ * IOCTL functions */ int r128_cce_clear( struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg ) { drm_file_t *priv = filp->private_data; drm_device_t *dev = priv->dev; drm_r128_private_t *dev_priv = dev->dev_private; drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv; drm_r128_clear_t clear; DRM_DEBUG( "%s\n", __FUNCTION__ ); LOCK_TEST_WITH_RETURN( dev ); if ( copy_from_user( &clear, (drm_r128_clear_t *) arg, sizeof(clear) ) ) return -EFAULT; RING_SPACE_TEST_WITH_RETURN( dev_priv ); if ( sarea_priv->nbox > R128_NR_SAREA_CLIPRECTS ) sarea_priv->nbox = R128_NR_SAREA_CLIPRECTS; r128_cce_dispatch_clear( dev, &clear ); /* Make sure we restore the 3D state next time. */ dev_priv->sarea_priv->dirty |= R128_UPLOAD_CONTEXT | R128_UPLOAD_MASKS; return 0; } int r128_cce_swap( struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg ) { drm_file_t *priv = filp->private_data; drm_device_t *dev = priv->dev; drm_r128_private_t *dev_priv = dev->dev_private; drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv; DRM_DEBUG( "%s\n", __FUNCTION__ ); LOCK_TEST_WITH_RETURN( dev ); RING_SPACE_TEST_WITH_RETURN( dev_priv ); if ( sarea_priv->nbox > R128_NR_SAREA_CLIPRECTS ) sarea_priv->nbox = R128_NR_SAREA_CLIPRECTS; if ( !dev_priv->page_flipping ) { r128_cce_dispatch_swap( dev ); dev_priv->sarea_priv->dirty |= (R128_UPLOAD_CONTEXT | R128_UPLOAD_MASKS); } else { r128_cce_dispatch_flip( dev ); } return 0; } int r128_cce_vertex( struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg ) { drm_file_t *priv = filp->private_data; drm_device_t *dev = priv->dev; drm_r128_private_t *dev_priv = dev->dev_private; drm_device_dma_t *dma = dev->dma; drm_buf_t *buf; drm_r128_buf_priv_t *buf_priv; drm_r128_vertex_t vertex; LOCK_TEST_WITH_RETURN( dev ); if ( !dev_priv ) { DRM_ERROR( "%s called with no initialization\n", __FUNCTION__ ); return -EINVAL; } if ( copy_from_user( &vertex, (drm_r128_vertex_t *)arg, sizeof(vertex) ) ) return -EFAULT; DRM_DEBUG( "%s: pid=%d index=%d count=%d discard=%d\n", __FUNCTION__, current->pid, vertex.idx, vertex.count, vertex.discard ); if ( vertex.idx < 0 || vertex.idx >= dma->buf_count ) { DRM_ERROR( "buffer index %d (of %d max)\n", vertex.idx, dma->buf_count - 1 ); return -EINVAL; } if ( vertex.prim < 0 || vertex.prim > R128_CCE_VC_CNTL_PRIM_TYPE_TRI_TYPE2 ) { DRM_ERROR( "buffer prim %d\n", vertex.prim ); return -EINVAL; } RING_SPACE_TEST_WITH_RETURN( dev_priv ); VB_AGE_TEST_WITH_RETURN( dev_priv ); buf = dma->buflist[vertex.idx]; buf_priv = buf->dev_private; if ( buf->pid != current->pid ) { DRM_ERROR( "process %d using buffer owned by %d\n", current->pid, buf->pid ); return -EINVAL; } if ( buf->pending ) { DRM_ERROR( "sending pending buffer %d\n", vertex.idx ); return -EINVAL; } buf->used = vertex.count; buf_priv->prim = vertex.prim; buf_priv->discard = vertex.discard; r128_cce_dispatch_vertex( dev, buf ); return 0; } int r128_cce_indices( struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg ) { drm_file_t *priv = filp->private_data; drm_device_t *dev = priv->dev; drm_r128_private_t *dev_priv = dev->dev_private; drm_device_dma_t *dma = dev->dma; drm_buf_t *buf; drm_r128_buf_priv_t *buf_priv; drm_r128_indices_t elts; int count; LOCK_TEST_WITH_RETURN( dev ); if ( !dev_priv ) { DRM_ERROR( "%s called with no initialization\n", __FUNCTION__ ); return -EINVAL; } if ( copy_from_user( &elts, (drm_r128_indices_t *)arg, sizeof(elts) ) ) return -EFAULT; DRM_DEBUG( "%s: pid=%d buf=%d s=%d e=%d d=%d\n", __FUNCTION__, current->pid, elts.idx, elts.start, elts.end, elts.discard ); if ( elts.idx < 0 || elts.idx >= dma->buf_count ) { DRM_ERROR( "buffer index %d (of %d max)\n", elts.idx, dma->buf_count - 1 ); return -EINVAL; } if ( elts.prim < 0 || elts.prim > R128_CCE_VC_CNTL_PRIM_TYPE_TRI_TYPE2 ) { DRM_ERROR( "buffer prim %d\n", elts.prim ); return -EINVAL; } RING_SPACE_TEST_WITH_RETURN( dev_priv ); VB_AGE_TEST_WITH_RETURN( dev_priv ); buf = dma->buflist[elts.idx]; buf_priv = buf->dev_private; if ( buf->pid != current->pid ) { DRM_ERROR( "process %d using buffer owned by %d\n", current->pid, buf->pid ); return -EINVAL; } if ( buf->pending ) { DRM_ERROR( "sending pending buffer %d\n", elts.idx ); return -EINVAL; } count = (elts.end - elts.start) / sizeof(u16); elts.start -= R128_INDEX_PRIM_OFFSET; if ( elts.start & 0x7 ) { DRM_ERROR( "misaligned buffer 0x%x\n", elts.start ); return -EINVAL; } if ( elts.start < buf->used ) { DRM_ERROR( "no header 0x%x - 0x%x\n", elts.start, buf->used ); return -EINVAL; } buf->used = elts.end; buf_priv->prim = elts.prim; buf_priv->discard = elts.discard; r128_cce_dispatch_indices( dev, buf, elts.start, elts.end, count ); return 0; } int r128_cce_blit( struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg ) { drm_file_t *priv = filp->private_data; drm_device_t *dev = priv->dev; drm_device_dma_t *dma = dev->dma; drm_r128_private_t *dev_priv = dev->dev_private; drm_r128_blit_t blit; LOCK_TEST_WITH_RETURN( dev ); if ( copy_from_user( &blit, (drm_r128_blit_t *)arg, sizeof(blit) ) ) return -EFAULT; DRM_DEBUG( "%s: pid=%d index=%d\n", __FUNCTION__, current->pid, 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 -EINVAL; } RING_SPACE_TEST_WITH_RETURN( dev_priv ); VB_AGE_TEST_WITH_RETURN( dev_priv ); return r128_cce_dispatch_blit( dev, &blit ); } int r128_cce_depth( struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg ) { drm_file_t *priv = filp->private_data; drm_device_t *dev = priv->dev; drm_r128_private_t *dev_priv = dev->dev_private; drm_r128_depth_t depth; LOCK_TEST_WITH_RETURN( dev ); if ( copy_from_user( &depth, (drm_r128_depth_t *)arg, sizeof(depth) ) ) return -EFAULT; RING_SPACE_TEST_WITH_RETURN( dev_priv ); switch ( depth.func ) { case R128_WRITE_SPAN: return r128_cce_dispatch_write_span( dev, &depth ); case R128_WRITE_PIXELS: return r128_cce_dispatch_write_pixels( dev, &depth ); case R128_READ_SPAN: return r128_cce_dispatch_read_span( dev, &depth ); case R128_READ_PIXELS: return r128_cce_dispatch_read_pixels( dev, &depth ); } return -EINVAL; } int r128_cce_stipple( struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg ) { drm_file_t *priv = filp->private_data; drm_device_t *dev = priv->dev; drm_r128_private_t *dev_priv = dev->dev_private; drm_r128_stipple_t stipple; u32 mask[32]; LOCK_TEST_WITH_RETURN( dev ); if ( copy_from_user( &stipple, (drm_r128_stipple_t *)arg, sizeof(stipple) ) ) return -EFAULT; if ( copy_from_user( &mask, stipple.mask, 32 * sizeof(u32) ) ) return -EFAULT; RING_SPACE_TEST_WITH_RETURN( dev_priv ); r128_cce_dispatch_stipple( dev, mask ); return 0; } int r128_cce_indirect( struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg ) { drm_file_t *priv = filp->private_data; drm_device_t *dev = priv->dev; LOCK_TEST_WITH_RETURN( dev ); /* Indirect buffer firing is not supported at this time. */ return -EINVAL; }