diff options
Diffstat (limited to 'src/mesa/drivers/dri/radeon/radeon_common.c')
-rw-r--r-- | src/mesa/drivers/dri/radeon/radeon_common.c | 843 |
1 files changed, 843 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/radeon/radeon_common.c b/src/mesa/drivers/dri/radeon/radeon_common.c new file mode 100644 index 0000000000..87b6dac40b --- /dev/null +++ b/src/mesa/drivers/dri/radeon/radeon_common.c @@ -0,0 +1,843 @@ +/************************************************************************** + +Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved. + +The Weather Channel (TM) funded Tungsten Graphics to develop the +initial release of the Radeon 8500 driver under the XFree86 license. +This notice must be preserved. + +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) 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: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +/* + - Scissor implementation + - buffer swap/copy ioctls + - finish/flush + - state emission + - cmdbuffer management +*/ + +#include <errno.h> +#include "main/glheader.h" +#include "main/imports.h" +#include "main/context.h" +#include "main/api_arrayelt.h" +#include "main/enums.h" +#include "main/colormac.h" +#include "main/light.h" +#include "main/framebuffer.h" +#include "main/simple_list.h" + +#include "swrast/swrast.h" +#include "vbo/vbo.h" +#include "tnl/tnl.h" +#include "tnl/t_pipeline.h" +#include "swrast_setup/swrast_setup.h" + +#include "dri_util.h" +#include "drirenderbuffer.h" +#include "vblank.h" + +#include "radeon_common.h" +#include "radeon_common.h" +#include "radeon_bo.h" +#include "radeon_cs.h" +#include "radeon_bo_legacy.h" +#include "radeon_cs_legacy.h" +#include "radeon_bo_gem.h" +#include "radeon_cs_gem.h" +#include "radeon_drm.h" +#include "radeon_mipmap_tree.h" + +#define DEBUG_CMDBUF 0 + +/* ============================================================= + * Scissoring + */ + +static GLboolean 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 GL_FALSE; + if (out->y1 >= out->y2) + return GL_FALSE; + return GL_TRUE; +} + +void radeonRecalcScissorRects(radeonContextPtr radeon) +{ + drm_clip_rect_t *out; + int i; + + /* Grow cliprect store? + */ + if (radeon->state.scissor.numAllocedClipRects < radeon->numClipRects) { + while (radeon->state.scissor.numAllocedClipRects < + radeon->numClipRects) { + radeon->state.scissor.numAllocedClipRects += 1; /* zero case */ + radeon->state.scissor.numAllocedClipRects *= 2; + } + + if (radeon->state.scissor.pClipRects) + FREE(radeon->state.scissor.pClipRects); + + radeon->state.scissor.pClipRects = + MALLOC(radeon->state.scissor.numAllocedClipRects * + sizeof(drm_clip_rect_t)); + + if (radeon->state.scissor.pClipRects == NULL) { + radeon->state.scissor.numAllocedClipRects = 0; + return; + } + } + + out = radeon->state.scissor.pClipRects; + radeon->state.scissor.numClipRects = 0; + + for (i = 0; i < radeon->numClipRects; i++) { + if (intersect_rect(out, + &radeon->pClipRects[i], + &radeon->state.scissor.rect)) { + radeon->state.scissor.numClipRects++; + out++; + } + } +} + +/** + * Update cliprects and scissors. + */ +void radeonSetCliprects(radeonContextPtr radeon) +{ + __DRIdrawablePrivate *const drawable = radeon->dri.drawable; + __DRIdrawablePrivate *const readable = radeon->dri.readable; + GLframebuffer *const draw_fb = (GLframebuffer*)drawable->driverPrivate; + GLframebuffer *const read_fb = (GLframebuffer*)readable->driverPrivate; + + if (!radeon->radeonScreen->driScreen->dri2.enabled) { + if (draw_fb->_ColorDrawBufferIndexes[0] == BUFFER_BACK_LEFT) { + /* Can't ignore 2d windows if we are page flipping. */ + if (drawable->numBackClipRects == 0 || radeon->doPageFlip || + radeon->sarea->pfCurrentPage == 1) { + radeon->numClipRects = drawable->numClipRects; + radeon->pClipRects = drawable->pClipRects; + } else { + radeon->numClipRects = drawable->numBackClipRects; + radeon->pClipRects = drawable->pBackClipRects; + } + } else { + /* front buffer (or none, or multiple buffers */ + radeon->numClipRects = drawable->numClipRects; + radeon->pClipRects = drawable->pClipRects; + } + } + + if ((draw_fb->Width != drawable->w) || + (draw_fb->Height != drawable->h)) { + _mesa_resize_framebuffer(radeon->glCtx, draw_fb, + drawable->w, drawable->h); + draw_fb->Initialized = GL_TRUE; + } + + if (drawable != readable) { + if ((read_fb->Width != readable->w) || + (read_fb->Height != readable->h)) { + _mesa_resize_framebuffer(radeon->glCtx, read_fb, + readable->w, readable->h); + read_fb->Initialized = GL_TRUE; + } + } + + if (radeon->state.scissor.enabled) + radeonRecalcScissorRects(radeon); + + radeon->lastStamp = drawable->lastStamp; +} + +void radeonUpdateScissor( GLcontext *ctx ) +{ + radeonContextPtr rmesa = RADEON_CONTEXT(ctx); + + if ( rmesa->dri.drawable ) { + __DRIdrawablePrivate *dPriv = rmesa->dri.drawable; + + int x = ctx->Scissor.X; + int y = dPriv->h - ctx->Scissor.Y - ctx->Scissor.Height; + int w = ctx->Scissor.X + ctx->Scissor.Width - 1; + int h = dPriv->h - ctx->Scissor.Y - 1; + + rmesa->state.scissor.rect.x1 = x + dPriv->x; + rmesa->state.scissor.rect.y1 = y + dPriv->y; + rmesa->state.scissor.rect.x2 = w + dPriv->x + 1; + rmesa->state.scissor.rect.y2 = h + dPriv->y + 1; + + radeonRecalcScissorRects( rmesa ); + } +} + +/* ============================================================= + * Scissoring + */ + +void radeonScissor(GLcontext* ctx, GLint x, GLint y, GLsizei w, GLsizei h) +{ + radeonContextPtr radeon = RADEON_CONTEXT(ctx); + if (ctx->Scissor.Enabled) { + /* We don't pipeline cliprect changes */ + radeon_firevertices(radeon); + radeonUpdateScissor(ctx); + } +} + + +/* ================================================================ + * SwapBuffers with client-side throttling + */ + +static uint32_t radeonGetLastFrame(radeonContextPtr radeon) +{ + drm_radeon_getparam_t gp; + int ret; + uint32_t frame; + + gp.param = RADEON_PARAM_LAST_FRAME; + gp.value = (int *)&frame; + ret = drmCommandWriteRead(radeon->dri.fd, DRM_RADEON_GETPARAM, + &gp, sizeof(gp)); + if (ret) { + fprintf(stderr, "%s: drmRadeonGetParam: %d\n", __FUNCTION__, + ret); + exit(1); + } + + return frame; +} + +uint32_t radeonGetAge(radeonContextPtr radeon) +{ + drm_radeon_getparam_t gp; + int ret; + uint32_t age; + + gp.param = RADEON_PARAM_LAST_CLEAR; + gp.value = (int *)&age; + ret = drmCommandWriteRead(radeon->dri.fd, DRM_RADEON_GETPARAM, + &gp, sizeof(gp)); + if (ret) { + fprintf(stderr, "%s: drmRadeonGetParam: %d\n", __FUNCTION__, + ret); + exit(1); + } + + return age; +} + +static void radeonEmitIrqLocked(radeonContextPtr radeon) +{ + drm_radeon_irq_emit_t ie; + int ret; + + ie.irq_seq = &radeon->iw.irq_seq; + ret = drmCommandWriteRead(radeon->dri.fd, DRM_RADEON_IRQ_EMIT, + &ie, sizeof(ie)); + if (ret) { + fprintf(stderr, "%s: drmRadeonIrqEmit: %d\n", __FUNCTION__, + ret); + exit(1); + } +} + +static void radeonWaitIrq(radeonContextPtr radeon) +{ + int ret; + + do { + ret = drmCommandWrite(radeon->dri.fd, DRM_RADEON_IRQ_WAIT, + &radeon->iw, sizeof(radeon->iw)); + } while (ret && (errno == EINTR || errno == EBUSY)); + + if (ret) { + fprintf(stderr, "%s: drmRadeonIrqWait: %d\n", __FUNCTION__, + ret); + exit(1); + } +} + +static void radeonWaitForFrameCompletion(radeonContextPtr radeon) +{ + drm_radeon_sarea_t *sarea = radeon->sarea; + + if (radeon->do_irqs) { + if (radeonGetLastFrame(radeon) < sarea->last_frame) { + if (!radeon->irqsEmitted) { + while (radeonGetLastFrame(radeon) < + sarea->last_frame) ; + } else { + UNLOCK_HARDWARE(radeon); + radeonWaitIrq(radeon); + LOCK_HARDWARE(radeon); + } + radeon->irqsEmitted = 10; + } + + if (radeon->irqsEmitted) { + radeonEmitIrqLocked(radeon); + radeon->irqsEmitted--; + } + } else { + while (radeonGetLastFrame(radeon) < sarea->last_frame) { + UNLOCK_HARDWARE(radeon); + if (radeon->do_usleeps) + DO_USLEEP(1); + LOCK_HARDWARE(radeon); + } + } +} + +/* wait for idle */ +void radeonWaitForIdleLocked(radeonContextPtr radeon) +{ + int ret; + int i = 0; + + do { + ret = drmCommandNone(radeon->dri.fd, DRM_RADEON_CP_IDLE); + if (ret) + DO_USLEEP(1); + } while (ret && ++i < 100); + + if (ret < 0) { + UNLOCK_HARDWARE(radeon); + fprintf(stderr, "Error: R300 timed out... exiting\n"); + exit(-1); + } +} + +static void radeonWaitForIdle(radeonContextPtr radeon) +{ + LOCK_HARDWARE(radeon); + radeonWaitForIdleLocked(radeon); + UNLOCK_HARDWARE(radeon); +} + + +/* Copy the back color buffer to the front color buffer. + */ +void radeonCopyBuffer( __DRIdrawablePrivate *dPriv, + const drm_clip_rect_t *rect) +{ + radeonContextPtr rmesa; + GLint nbox, i, ret; + GLboolean missed_target; + int64_t ust; + __DRIscreenPrivate *psp; + + assert(dPriv); + assert(dPriv->driContextPriv); + assert(dPriv->driContextPriv->driverPrivate); + + rmesa = (radeonContextPtr) dPriv->driContextPriv->driverPrivate; + + if ( RADEON_DEBUG & DEBUG_IOCTL ) { + fprintf( stderr, "\n%s( %p )\n\n", __FUNCTION__, (void *) rmesa->glCtx ); + } + + radeon_firevertices(rmesa); + LOCK_HARDWARE( rmesa ); + + /* Throttle the frame rate -- only allow one pending swap buffers + * request at a time. + */ + radeonWaitForFrameCompletion( rmesa ); + if (!rect) + { + UNLOCK_HARDWARE( rmesa ); + driWaitForVBlank( dPriv, & missed_target ); + LOCK_HARDWARE( rmesa ); + } + + nbox = dPriv->numClipRects; /* must be in locked region */ + + for ( i = 0 ; i < nbox ; ) { + GLint nr = MIN2( i + RADEON_NR_SAREA_CLIPRECTS , nbox ); + drm_clip_rect_t *box = dPriv->pClipRects; + drm_clip_rect_t *b = rmesa->sarea->boxes; + GLint n = 0; + + for ( ; i < nr ; i++ ) { + + *b = box[i]; + + if (rect) + { + if (rect->x1 > b->x1) + b->x1 = rect->x1; + if (rect->y1 > b->y1) + b->y1 = rect->y1; + if (rect->x2 < b->x2) + b->x2 = rect->x2; + if (rect->y2 < b->y2) + b->y2 = rect->y2; + + if (b->x1 >= b->x2 || b->y1 >= b->y2) + continue; + } + + b++; + n++; + } + rmesa->sarea->nbox = n; + + if (!n) + continue; + + ret = drmCommandNone( rmesa->dri.fd, DRM_RADEON_SWAP ); + + if ( ret ) { + fprintf( stderr, "DRM_RADEON_SWAP_BUFFERS: return = %d\n", ret ); + UNLOCK_HARDWARE( rmesa ); + exit( 1 ); + } + } + + UNLOCK_HARDWARE( rmesa ); + if (!rect) + { + psp = dPriv->driScreenPriv; + rmesa->swap_count++; + (*psp->systemTime->getUST)( & ust ); + if ( missed_target ) { + rmesa->swap_missed_count++; + rmesa->swap_missed_ust = ust - rmesa->swap_ust; + } + + rmesa->swap_ust = ust; + rmesa->hw.all_dirty = GL_TRUE; + + } +} + +void radeonPageFlip( __DRIdrawablePrivate *dPriv ) +{ + radeonContextPtr rmesa; + GLint ret; + GLboolean missed_target; + __DRIscreenPrivate *psp; + struct radeon_renderbuffer *rrb; + GLframebuffer *fb = dPriv->driverPrivate; + + assert(dPriv); + assert(dPriv->driContextPriv); + assert(dPriv->driContextPriv->driverPrivate); + + rmesa = (radeonContextPtr) dPriv->driContextPriv->driverPrivate; + rrb = (void *)fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer; + + psp = dPriv->driScreenPriv; + + if ( RADEON_DEBUG & DEBUG_IOCTL ) { + fprintf(stderr, "%s: pfCurrentPage: %d\n", __FUNCTION__, + rmesa->sarea->pfCurrentPage); + } + + radeon_firevertices(rmesa); + + LOCK_HARDWARE( rmesa ); + + if (!dPriv->numClipRects) { + UNLOCK_HARDWARE(rmesa); + usleep(10000); /* throttle invisible client 10ms */ + return; + } + + drm_clip_rect_t *box = dPriv->pClipRects; + drm_clip_rect_t *b = rmesa->sarea->boxes; + b[0] = box[0]; + rmesa->sarea->nbox = 1; + + /* Throttle the frame rate -- only allow a few pending swap buffers + * request at a time. + */ + radeonWaitForFrameCompletion( rmesa ); + UNLOCK_HARDWARE( rmesa ); + driWaitForVBlank( dPriv, & missed_target ); + if ( missed_target ) { + rmesa->swap_missed_count++; + (void) (*psp->systemTime->getUST)( & rmesa->swap_missed_ust ); + } + LOCK_HARDWARE( rmesa ); + + ret = drmCommandNone( rmesa->dri.fd, DRM_RADEON_FLIP ); + + UNLOCK_HARDWARE( rmesa ); + + if ( ret ) { + fprintf( stderr, "DRM_RADEON_FLIP: return = %d\n", ret ); + exit( 1 ); + } + + rmesa->swap_count++; + (void) (*psp->systemTime->getUST)( & rmesa->swap_ust ); + + /* Get ready for drawing next frame. Update the renderbuffers' + * flippedOffset/Pitch fields so we draw into the right place. + */ + driFlipRenderbuffers(rmesa->glCtx->WinSysDrawBuffer, + rmesa->sarea->pfCurrentPage); + + rmesa->state.color.rrb = rrb; + + if (rmesa->vtbl.update_draw_buffer) + rmesa->vtbl.update_draw_buffer(rmesa->glCtx); +} + + +/** + * Swap front and back buffer. + */ +void radeonSwapBuffers(__DRIdrawablePrivate * dPriv) +{ + if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) { + radeonContextPtr radeon; + GLcontext *ctx; + + radeon = (radeonContextPtr) dPriv->driContextPriv->driverPrivate; + ctx = radeon->glCtx; + + if (ctx->Visual.doubleBufferMode) { + _mesa_notifySwapBuffers(ctx);/* flush pending rendering comands */ + if (radeon->doPageFlip) { + radeonPageFlip(dPriv); + } else { + radeonCopyBuffer(dPriv, NULL); + } + } + } else { + /* XXX this shouldn't be an error but we can't handle it for now */ + _mesa_problem(NULL, "%s: drawable has no context!", + __FUNCTION__); + } +} + +void radeonCopySubBuffer(__DRIdrawablePrivate * dPriv, + int x, int y, int w, int h ) +{ + if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) { + radeonContextPtr radeon; + GLcontext *ctx; + + radeon = (radeonContextPtr) dPriv->driContextPriv->driverPrivate; + ctx = radeon->glCtx; + + if (ctx->Visual.doubleBufferMode) { + drm_clip_rect_t rect; + rect.x1 = x + dPriv->x; + rect.y1 = (dPriv->h - y - h) + dPriv->y; + rect.x2 = rect.x1 + w; + rect.y2 = rect.y1 + h; + _mesa_notifySwapBuffers(ctx); /* flush pending rendering comands */ + radeonCopyBuffer(dPriv, &rect); + } + } else { + /* XXX this shouldn't be an error but we can't handle it for now */ + _mesa_problem(NULL, "%s: drawable has no context!", + __FUNCTION__); + } +} + + +static void radeon_print_state_atom( struct radeon_state_atom *state ) +{ + int i; + + fprintf(stderr, "emit %s/%d\n", state->name, state->cmd_size); + + if (RADEON_DEBUG & DEBUG_VERBOSE) + for (i = 0 ; i < state->cmd_size ; i++) + fprintf(stderr, "\t%s[%d]: %x\n", state->name, i, state->cmd[i]); + +} + +static INLINE void radeonEmitAtoms(radeonContextPtr radeon, GLboolean dirty) +{ + BATCH_LOCALS(radeon); + struct radeon_state_atom *atom; + int dwords; + + if (radeon->vtbl.pre_emit_atoms) + radeon->vtbl.pre_emit_atoms(radeon); + + /* Emit actual atoms */ + foreach(atom, &radeon->hw.atomlist) { + if ((atom->dirty || radeon->hw.all_dirty) == dirty) { + dwords = (*atom->check) (radeon->glCtx, atom); + if (dwords) { + if (DEBUG_CMDBUF && RADEON_DEBUG & DEBUG_STATE) { + radeon_print_state_atom(atom); + } + if (atom->emit) { + (*atom->emit)(radeon->glCtx, atom); + } else { + BEGIN_BATCH_NO_AUTOSTATE(dwords); + OUT_BATCH_TABLE(atom->cmd, dwords); + END_BATCH(); + } + atom->dirty = GL_FALSE; + } else { + if (DEBUG_CMDBUF && RADEON_DEBUG & DEBUG_STATE) { + fprintf(stderr, " skip state %s\n", + atom->name); + } + } + } + } + + COMMIT_BATCH(); +} + +void radeonEmitState(radeonContextPtr radeon) +{ + if (RADEON_DEBUG & (DEBUG_STATE|DEBUG_PRIMS)) + fprintf(stderr, "%s\n", __FUNCTION__); + + if (radeon->vtbl.pre_emit_state) + radeon->vtbl.pre_emit_state(radeon); + + /* this code used to return here but now it emits zbs */ + if (radeon->cmdbuf.cs->cdw && !radeon->hw.is_dirty && !radeon->hw.all_dirty) + return; + + /* To avoid going across the entire set of states multiple times, just check + * for enough space for the case of emitting all state, and inline the + * radeonAllocCmdBuf code here without all the checks. + */ + rcommonEnsureCmdBufSpace(radeon, radeon->hw.max_state_size, __FUNCTION__); + + if (!radeon->cmdbuf.cs->cdw) { + if (RADEON_DEBUG & DEBUG_STATE) + fprintf(stderr, "Begin reemit state\n"); + + radeonEmitAtoms(radeon, GL_FALSE); + } + + if (RADEON_DEBUG & DEBUG_STATE) + fprintf(stderr, "Begin dirty state\n"); + + radeonEmitAtoms(radeon, GL_TRUE); + radeon->hw.is_dirty = GL_FALSE; + radeon->hw.all_dirty = GL_FALSE; + +} + + +void radeonFlush(GLcontext *ctx) +{ + radeonContextPtr radeon = RADEON_CONTEXT(ctx); + if (RADEON_DEBUG & DEBUG_IOCTL) + fprintf(stderr, "%s\n", __FUNCTION__); + + if (radeon->dma.flush) + radeon->dma.flush( ctx ); + + radeonEmitState(radeon); + + if (radeon->cmdbuf.cs->cdw) + rcommonFlushCmdBuf(radeon, __FUNCTION__); +} + +/* Make sure all commands have been sent to the hardware and have + * completed processing. + */ +void radeonFinish(GLcontext * ctx) +{ + radeonContextPtr radeon = RADEON_CONTEXT(ctx); + struct gl_framebuffer *fb = ctx->DrawBuffer; + int i; + + radeonFlush(ctx); + + if (radeon->radeonScreen->kernel_mm) { + for (i = 0; i < fb->_NumColorDrawBuffers; i++) { + struct radeon_renderbuffer *rrb; + rrb = (struct radeon_renderbuffer *)fb->_ColorDrawBuffers[i]; + if (rrb->bo) + radeon_bo_wait(rrb->bo); + } + } else if (radeon->do_irqs) { + LOCK_HARDWARE(radeon); + radeonEmitIrqLocked(radeon); + UNLOCK_HARDWARE(radeon); + radeonWaitIrq(radeon); + } else { + radeonWaitForIdle(radeon); + } +} + +/* cmdbuffer */ +/** + * Send the current command buffer via ioctl to the hardware. + */ +int rcommonFlushCmdBufLocked(radeonContextPtr rmesa, const char *caller) +{ + int ret = 0; + + if (rmesa->cmdbuf.flushing) { + fprintf(stderr, "Recursive call into r300FlushCmdBufLocked!\n"); + exit(-1); + } + rmesa->cmdbuf.flushing = 1; + if (rmesa->cmdbuf.cs->cdw) { + ret = radeon_cs_emit(rmesa->cmdbuf.cs); + rmesa->hw.all_dirty = GL_TRUE; + } + radeon_cs_erase(rmesa->cmdbuf.cs); + rmesa->cmdbuf.flushing = 0; + return ret; +} + +int rcommonFlushCmdBuf(radeonContextPtr rmesa, const char *caller) +{ + int ret; + + radeonReleaseDmaRegion(rmesa); + + LOCK_HARDWARE(rmesa); + ret = rcommonFlushCmdBufLocked(rmesa, caller); + UNLOCK_HARDWARE(rmesa); + + if (ret) { + fprintf(stderr, "drmRadeonCmdBuffer: %d\n", ret); + _mesa_exit(ret); + } + + return ret; +} + +/** + * Make sure that enough space is available in the command buffer + * by flushing if necessary. + * + * \param dwords The number of dwords we need to be free on the command buffer + */ +void rcommonEnsureCmdBufSpace(radeonContextPtr rmesa, int dwords, const char *caller) +{ + if ((rmesa->cmdbuf.cs->cdw + dwords + 128) > rmesa->cmdbuf.size || + radeon_cs_need_flush(rmesa->cmdbuf.cs)) { + rcommonFlushCmdBuf(rmesa, caller); + } +} + +void rcommonInitCmdBuf(radeonContextPtr rmesa) +{ + GLuint size; + /* Initialize command buffer */ + size = 256 * driQueryOptioni(&rmesa->optionCache, + "command_buffer_size"); + if (size < 2 * rmesa->hw.max_state_size) { + size = 2 * rmesa->hw.max_state_size + 65535; + } + if (size > 64 * 256) + size = 64 * 256; + + if (RADEON_DEBUG & (DEBUG_IOCTL | DEBUG_DMA)) { + fprintf(stderr, "sizeof(drm_r300_cmd_header_t)=%zd\n", + sizeof(drm_r300_cmd_header_t)); + fprintf(stderr, "sizeof(drm_radeon_cmd_buffer_t)=%zd\n", + sizeof(drm_radeon_cmd_buffer_t)); + fprintf(stderr, + "Allocating %d bytes command buffer (max state is %d bytes)\n", + size * 4, rmesa->hw.max_state_size * 4); + } + + if (rmesa->radeonScreen->kernel_mm) { + int fd = rmesa->radeonScreen->driScreen->fd; + rmesa->cmdbuf.csm = radeon_cs_manager_gem_ctor(fd); + } else { + rmesa->cmdbuf.csm = radeon_cs_manager_legacy_ctor(rmesa); + } + if (rmesa->cmdbuf.csm == NULL) { + /* FIXME: fatal error */ + return; + } + rmesa->cmdbuf.cs = radeon_cs_create(rmesa->cmdbuf.csm, size); + assert(rmesa->cmdbuf.cs != NULL); + rmesa->cmdbuf.size = size; + + if (!rmesa->radeonScreen->kernel_mm) { + radeon_cs_set_limit(rmesa->cmdbuf.cs, RADEON_GEM_DOMAIN_VRAM, rmesa->radeonScreen->texSize[0]); + radeon_cs_set_limit(rmesa->cmdbuf.cs, RADEON_GEM_DOMAIN_GTT, rmesa->radeonScreen->gartTextures.size); + } else { + struct drm_radeon_gem_info mminfo; + + if (!drmCommandWriteRead(rmesa->dri.fd, DRM_RADEON_GEM_INFO, &mminfo, sizeof(mminfo))) + { + radeon_cs_set_limit(rmesa->cmdbuf.cs, RADEON_GEM_DOMAIN_VRAM, mminfo.vram_size); + radeon_cs_set_limit(rmesa->cmdbuf.cs, RADEON_GEM_DOMAIN_GTT, mminfo.gart_size); + } + } + +} +/** + * Destroy the command buffer + */ +void rcommonDestroyCmdBuf(radeonContextPtr rmesa) +{ + radeon_cs_destroy(rmesa->cmdbuf.cs); + if (rmesa->radeonScreen->driScreen->dri2.enabled || rmesa->radeonScreen->kernel_mm) { + radeon_cs_manager_gem_dtor(rmesa->cmdbuf.csm); + } else { + radeon_cs_manager_legacy_dtor(rmesa->cmdbuf.csm); + } +} + +void rcommonBeginBatch(radeonContextPtr rmesa, int n, + int dostate, + const char *file, + const char *function, + int line) +{ + rcommonEnsureCmdBufSpace(rmesa, n, function); + if (!rmesa->cmdbuf.cs->cdw && dostate) { + if (RADEON_DEBUG & DEBUG_IOCTL) + fprintf(stderr, "Reemit state after flush (from %s)\n", function); + radeonEmitState(rmesa); + } + radeon_cs_begin(rmesa->cmdbuf.cs, n, file, function, line); +} + + + |