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Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/unichrome/via_ioctl.c')
-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/dri/unichrome/via_ioctl.c970
1 files changed, 970 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/unichrome/via_ioctl.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/unichrome/via_ioctl.c
new file mode 100644
index 000000000..e84f4294a
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/unichrome/via_ioctl.c
@@ -0,0 +1,970 @@
+/*
+ * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
+ * Copyright 2001-2003 S3 Graphics, Inc. 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, sub license,
+ * 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * VIA, S3 GRAPHICS, 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.
+ */
+#include <stdio.h>
+#include <unistd.h>
+
+#include "glheader.h"
+#include "mtypes.h"
+#include "macros.h"
+#include "dd.h"
+#include "swrast/swrast.h"
+
+#include "mm.h"
+#include "via_context.h"
+#include "via_tris.h"
+#include "via_ioctl.h"
+#include "via_state.h"
+#include "via_fb.h"
+#include "via_3d_reg.h"
+
+#include "vblank.h"
+#include "drm.h"
+#include "xf86drm.h"
+#include <sys/ioctl.h>
+#include <errno.h>
+
+
+#define VIA_REG_STATUS 0x400
+#define VIA_REG_GEMODE 0x004
+#define VIA_REG_SRCBASE 0x030
+#define VIA_REG_DSTBASE 0x034
+#define VIA_REG_PITCH 0x038
+#define VIA_REG_SRCCOLORKEY 0x01C
+#define VIA_REG_KEYCONTROL 0x02C
+#define VIA_REG_SRCPOS 0x008
+#define VIA_REG_DSTPOS 0x00C
+#define VIA_REG_GECMD 0x000
+#define VIA_REG_DIMENSION 0x010 /* width and height */
+#define VIA_REG_FGCOLOR 0x018
+
+#define VIA_GEM_8bpp 0x00000000
+#define VIA_GEM_16bpp 0x00000100
+#define VIA_GEM_32bpp 0x00000300
+#define VIA_GEC_BLT 0x00000001
+#define VIA_PITCH_ENABLE 0x80000000
+#define VIA_GEC_INCX 0x00000000
+#define VIA_GEC_DECY 0x00004000
+#define VIA_GEC_INCY 0x00000000
+#define VIA_GEC_DECX 0x00008000
+#define VIA_GEC_FIXCOLOR_PAT 0x00002000
+
+
+#define VIA_BLIT_CLEAR 0x00
+#define VIA_BLIT_COPY 0xCC
+#define VIA_BLIT_FILL 0xF0
+#define VIA_BLIT_SET 0xFF
+
+static void dump_dma( struct via_context *vmesa )
+{
+ GLuint i;
+ GLuint *data = (GLuint *)vmesa->dma;
+ for (i = 0; i < vmesa->dmaLow; i += 16) {
+ fprintf(stderr, "%04x: ", i);
+ fprintf(stderr, "%08x ", *data++);
+ fprintf(stderr, "%08x ", *data++);
+ fprintf(stderr, "%08x ", *data++);
+ fprintf(stderr, "%08x\n", *data++);
+ }
+ fprintf(stderr, "******************************************\n");
+}
+
+
+void viaCheckDma(struct via_context *vmesa, GLuint bytes)
+{
+ VIA_FINISH_PRIM( vmesa );
+ if (vmesa->dmaLow + bytes > VIA_DMA_HIGHWATER) {
+ viaFlushDma(vmesa);
+ }
+}
+
+
+
+#define SetReg2DAGP(nReg, nData) do { \
+ OUT_RING( ((nReg) >> 2) | 0xF0000000 ); \
+ OUT_RING( nData ); \
+} while (0)
+
+
+static void viaBlit(struct via_context *vmesa, GLuint bpp,
+ GLuint srcBase, GLuint srcPitch,
+ GLuint dstBase, GLuint dstPitch,
+ GLuint w, GLuint h,
+ GLuint blitMode,
+ GLuint color, GLuint nMask )
+{
+
+ GLuint dwGEMode, srcX, dstX, cmd;
+ RING_VARS;
+
+ if (VIA_DEBUG & DEBUG_2D)
+ fprintf(stderr,
+ "%s bpp %d src %x/%x dst %x/%x w %d h %d "
+ " mode: %x color: 0x%08x mask 0x%08x\n",
+ __FUNCTION__, bpp, srcBase, srcPitch, dstBase,
+ dstPitch, w,h, blitMode, color, nMask);
+
+
+ if (!w || !h)
+ return;
+
+ switch (bpp) {
+ case 16:
+ dwGEMode = VIA_GEM_16bpp;
+ srcX = (srcBase & 0x1f) >> 1;
+ dstX = (dstBase & 0x1f) >> 1;
+ break;
+ case 32:
+ dwGEMode = VIA_GEM_32bpp;
+ srcX = (srcBase & 0x1f) >> 2;
+ dstX = (dstBase & 0x1f) >> 2;
+ break;
+ default:
+ return;
+ }
+
+ switch(blitMode) {
+ case VIA_BLIT_FILL:
+ cmd = VIA_GEC_BLT | VIA_GEC_FIXCOLOR_PAT | (VIA_BLIT_FILL << 24);
+ break;
+ case VIA_BLIT_COPY:
+ cmd = VIA_GEC_BLT | (VIA_BLIT_COPY << 24);
+ break;
+ default:
+ return;
+ }
+
+ BEGIN_RING(22);
+ SetReg2DAGP( VIA_REG_GEMODE, dwGEMode);
+ SetReg2DAGP( VIA_REG_FGCOLOR, color);
+ SetReg2DAGP( 0x2C, nMask);
+ SetReg2DAGP( VIA_REG_SRCBASE, (srcBase & ~0x1f) >> 3);
+ SetReg2DAGP( VIA_REG_DSTBASE, (dstBase & ~0x1f) >> 3);
+ SetReg2DAGP( VIA_REG_PITCH, VIA_PITCH_ENABLE |
+ (srcPitch >> 3) | ((dstPitch >> 3) << 16));
+ SetReg2DAGP( VIA_REG_SRCPOS, srcX);
+ SetReg2DAGP( VIA_REG_DSTPOS, dstX);
+ SetReg2DAGP( VIA_REG_DIMENSION, (((h - 1) << 16) | (w - 1)));
+ SetReg2DAGP( VIA_REG_GECMD, cmd);
+ SetReg2DAGP( 0x2C, 0x00000000);
+ ADVANCE_RING();
+}
+
+static void viaFillBuffer(struct via_context *vmesa,
+ struct via_buffer *buffer,
+ drm_clip_rect_t *pbox,
+ int nboxes,
+ GLuint pixel,
+ GLuint mask)
+{
+ GLuint bytePerPixel = buffer->bpp >> 3;
+ GLuint i;
+
+ for (i = 0; i < nboxes ; i++) {
+ int x = pbox[i].x1 - vmesa->drawX;
+ int y = pbox[i].y1 - vmesa->drawY;
+ int w = pbox[i].x2 - pbox[i].x1;
+ int h = pbox[i].y2 - pbox[i].y1;
+
+ int offset = (buffer->orig +
+ y * buffer->pitch +
+ x * bytePerPixel);
+
+ viaBlit(vmesa,
+ buffer->bpp,
+ offset, buffer->pitch,
+ offset, buffer->pitch,
+ w, h,
+ VIA_BLIT_FILL, pixel, mask);
+ }
+}
+
+
+
+static void viaClear(GLcontext *ctx, GLbitfield mask, GLboolean all,
+ GLint cx, GLint cy, GLint cw, GLint ch)
+{
+ struct via_context *vmesa = VIA_CONTEXT(ctx);
+ __DRIdrawablePrivate *dPriv = vmesa->driDrawable;
+ int flag = 0;
+ GLuint i = 0;
+ GLuint clear_depth_mask = 0xf << 28;
+ GLuint clear_depth = 0;
+
+ VIA_FLUSH_DMA(vmesa);
+
+ if (mask & BUFFER_BIT_FRONT_LEFT) {
+ flag |= VIA_FRONT;
+ mask &= ~BUFFER_BIT_FRONT_LEFT;
+ }
+
+ if (mask & BUFFER_BIT_BACK_LEFT) {
+ flag |= VIA_BACK;
+ mask &= ~BUFFER_BIT_BACK_LEFT;
+ }
+
+ if (mask & BUFFER_BIT_DEPTH) {
+ flag |= VIA_DEPTH;
+ clear_depth = (GLuint)(ctx->Depth.Clear * vmesa->ClearDepth);
+ clear_depth_mask &= ~vmesa->depth_clear_mask;
+ mask &= ~BUFFER_BIT_DEPTH;
+ }
+
+ if (mask & BUFFER_BIT_STENCIL) {
+ if (vmesa->have_hw_stencil) {
+ if (ctx->Stencil.WriteMask[0] == 0xff) {
+ flag |= VIA_DEPTH;
+ clear_depth &= ~0xff;
+ clear_depth |= (ctx->Stencil.Clear & 0xff);
+ clear_depth_mask &= ~vmesa->stencil_clear_mask;
+ mask &= ~BUFFER_BIT_STENCIL;
+ }
+ else {
+ if (VIA_DEBUG & DEBUG_2D)
+ fprintf(stderr, "Clear stencil writemask %x\n",
+ ctx->Stencil.WriteMask[0]);
+ }
+ }
+ }
+
+ /* 16bpp doesn't support masked clears */
+ if (vmesa->viaScreen->bytesPerPixel == 2 &&
+ vmesa->ClearMask & 0xf0000000) {
+ if (flag & VIA_FRONT)
+ mask |= BUFFER_BIT_FRONT_LEFT;
+ if (flag & VIA_BACK)
+ mask |= BUFFER_BIT_BACK_LEFT;
+ flag &= ~(VIA_FRONT | VIA_BACK);
+ }
+
+ if (flag) {
+ drm_clip_rect_t *boxes, *tmp_boxes = 0;
+ int nr = 0;
+
+ LOCK_HARDWARE(vmesa);
+
+ /* flip top to bottom */
+ cy = dPriv->h - cy - ch;
+ cx += vmesa->drawX + vmesa->drawXoff;
+ cy += vmesa->drawY;
+
+ if (!all) {
+ drm_clip_rect_t *b = vmesa->pClipRects;
+
+ boxes = tmp_boxes =
+ (drm_clip_rect_t *)malloc(vmesa->numClipRects *
+ sizeof(drm_clip_rect_t));
+ if (!boxes) {
+ UNLOCK_HARDWARE(vmesa);
+ return;
+ }
+
+ for (; i < vmesa->numClipRects; i++) {
+ GLint x = b[i].x1;
+ GLint y = b[i].y1;
+ GLint w = b[i].x2 - x;
+ GLint h = b[i].y2 - y;
+
+ if (x < cx) w -= cx - x, x = cx;
+ if (y < cy) h -= cy - y, y = cy;
+ if (x + w > cx + cw) w = cx + cw - x;
+ if (y + h > cy + ch) h = cy + ch - y;
+ if (w <= 0) continue;
+ if (h <= 0) continue;
+
+ boxes[nr].x1 = x;
+ boxes[nr].y1 = y;
+ boxes[nr].x2 = x + w;
+ boxes[nr].y2 = y + h;
+ nr++;
+ }
+ }
+ else {
+ boxes = vmesa->pClipRects;
+ nr = vmesa->numClipRects;
+ }
+
+ if (flag & VIA_FRONT) {
+ viaFillBuffer(vmesa, &vmesa->front, boxes, nr, vmesa->ClearColor,
+ vmesa->ClearMask);
+ }
+
+ if (flag & VIA_BACK) {
+ viaFillBuffer(vmesa, &vmesa->back, boxes, nr, vmesa->ClearColor,
+ vmesa->ClearMask);
+ }
+
+ if (flag & VIA_DEPTH) {
+ viaFillBuffer(vmesa, &vmesa->depth, boxes, nr, clear_depth,
+ clear_depth_mask);
+ }
+
+ viaFlushDmaLocked(vmesa, VIA_NO_CLIPRECTS);
+ UNLOCK_HARDWARE(vmesa);
+
+ if (tmp_boxes)
+ free(tmp_boxes);
+ }
+
+ if (mask)
+ _swrast_Clear(ctx, mask, all, cx, cy, cw, ch);
+}
+
+
+
+
+static void viaDoSwapBuffers(struct via_context *vmesa,
+ drm_clip_rect_t *b,
+ GLuint nbox)
+{
+ GLuint bytePerPixel = vmesa->viaScreen->bitsPerPixel >> 3;
+ struct via_buffer *front = &vmesa->front;
+ struct via_buffer *back = &vmesa->back;
+ GLuint i;
+
+ for (i = 0; i < nbox; i++, b++) {
+ GLint x = b->x1 - vmesa->drawX;
+ GLint y = b->y1 - vmesa->drawY;
+ GLint w = b->x2 - b->x1;
+ GLint h = b->y2 - b->y1;
+
+ GLuint src = back->orig + y * back->pitch + x * bytePerPixel;
+ GLuint dest = front->orig + y * front->pitch + x * bytePerPixel;
+
+ viaBlit(vmesa,
+ bytePerPixel << 3,
+ src, back->pitch,
+ dest, front->pitch,
+ w, h,
+ VIA_BLIT_COPY, 0, 0);
+ }
+
+ viaFlushDmaLocked(vmesa, VIA_NO_CLIPRECTS); /* redundant */
+}
+
+
+static void viaEmitBreadcrumbLocked( struct via_context *vmesa )
+{
+ struct via_buffer *buffer = &vmesa->breadcrumb;
+ GLuint value = vmesa->lastBreadcrumbWrite + 1;
+
+ if (VIA_DEBUG & DEBUG_IOCTL)
+ fprintf(stderr, "%s %d\n", __FUNCTION__, value);
+
+ assert(!vmesa->dmaLow);
+
+ viaBlit(vmesa,
+ buffer->bpp,
+ buffer->offset, buffer->pitch,
+ buffer->offset, buffer->pitch,
+ 1, 1,
+ VIA_BLIT_FILL, value, 0);
+
+ viaFlushDmaLocked(vmesa, VIA_NO_CLIPRECTS); /* often redundant */
+ vmesa->lastBreadcrumbWrite = value;
+}
+
+void viaEmitBreadcrumb( struct via_context *vmesa )
+{
+ LOCK_HARDWARE(vmesa);
+ if (vmesa->dmaLow)
+ viaFlushDmaLocked(vmesa, 0);
+
+ viaEmitBreadcrumbLocked( vmesa );
+ UNLOCK_HARDWARE(vmesa);
+}
+
+static GLboolean viaCheckIdle( struct via_context *vmesa )
+{
+ if ((vmesa->regEngineStatus[0] & 0xFFFEFFFF) == 0x00020000) {
+ return GL_TRUE;
+ }
+ return GL_FALSE;
+}
+
+
+GLboolean viaCheckBreadcrumb( struct via_context *vmesa, GLuint value )
+{
+ GLuint *buf = (GLuint *)vmesa->breadcrumb.map;
+ vmesa->lastBreadcrumbRead = *buf;
+
+ if (VIA_DEBUG & DEBUG_IOCTL)
+ fprintf(stderr, "%s %d < %d: %d\n", __FUNCTION__, value,
+ vmesa->lastBreadcrumbRead,
+ !VIA_GEQ_WRAP(value, vmesa->lastBreadcrumbRead));
+
+ return !VIA_GEQ_WRAP(value, vmesa->lastBreadcrumbRead);
+}
+
+static void viaWaitBreadcrumb( struct via_context *vmesa, GLuint value )
+{
+ if (VIA_DEBUG & DEBUG_IOCTL)
+ fprintf(stderr, "%s %d\n", __FUNCTION__, value);
+
+ assert(!VIA_GEQ_WRAP(value, vmesa->lastBreadcrumbWrite));
+
+ while (!viaCheckBreadcrumb( vmesa, value )) {
+ viaSwapOutWork( vmesa );
+ via_release_pending_textures( vmesa );
+ }
+}
+
+
+void viaWaitIdle( struct via_context *vmesa, GLboolean light )
+{
+ VIA_FLUSH_DMA(vmesa);
+
+ if (VIA_DEBUG & DEBUG_IOCTL)
+ fprintf(stderr, "%s lastDma %d lastBreadcrumbWrite %d\n",
+ __FUNCTION__, vmesa->lastDma, vmesa->lastBreadcrumbWrite);
+
+ /* Need to emit a new breadcrumb?
+ */
+ if (vmesa->lastDma == vmesa->lastBreadcrumbWrite) {
+ LOCK_HARDWARE(vmesa);
+ viaEmitBreadcrumbLocked( vmesa );
+ UNLOCK_HARDWARE(vmesa);
+ }
+
+ /* Need to wait?
+ */
+ if (VIA_GEQ_WRAP(vmesa->lastDma, vmesa->lastBreadcrumbRead))
+ viaWaitBreadcrumb( vmesa, vmesa->lastDma );
+
+ if (light) return;
+
+ LOCK_HARDWARE(vmesa);
+ while(!viaCheckIdle(vmesa))
+ ;
+ UNLOCK_HARDWARE(vmesa);
+ via_release_pending_textures(vmesa);
+}
+
+
+void viaWaitIdleLocked( struct via_context *vmesa, GLboolean light )
+{
+ if (vmesa->dmaLow)
+ viaFlushDmaLocked(vmesa, 0);
+
+ if (VIA_DEBUG & DEBUG_IOCTL)
+ fprintf(stderr, "%s lastDma %d lastBreadcrumbWrite %d\n",
+ __FUNCTION__, vmesa->lastDma, vmesa->lastBreadcrumbWrite);
+
+ /* Need to emit a new breadcrumb?
+ */
+ if (vmesa->lastDma == vmesa->lastBreadcrumbWrite) {
+ viaEmitBreadcrumbLocked( vmesa );
+ }
+
+ /* Need to wait?
+ */
+ if (vmesa->lastDma >= vmesa->lastBreadcrumbRead)
+ viaWaitBreadcrumb( vmesa, vmesa->lastDma );
+
+ if (light) return;
+
+ while(!viaCheckIdle(vmesa))
+ ;
+
+ via_release_pending_textures(vmesa);
+}
+
+
+
+/* Wait for command stream to be processed *and* the next vblank to
+ * occur. Equivalent to calling WAIT_IDLE() and then WaitVBlank,
+ * except that WAIT_IDLE() will spin the CPU polling, while this is
+ * IRQ driven.
+ */
+static void viaWaitIdleVBlank( const __DRIdrawablePrivate *dPriv,
+ struct via_context *vmesa,
+ GLuint value )
+{
+ GLboolean missed_target;
+
+ VIA_FLUSH_DMA(vmesa);
+
+ if (!value)
+ return;
+
+ do {
+ if (value < vmesa->lastBreadcrumbRead ||
+ vmesa->thrashing)
+ viaSwapOutWork(vmesa);
+
+ driWaitForVBlank( dPriv, & vmesa->vbl_seq,
+ vmesa->vblank_flags, & missed_target );
+ if ( missed_target ) {
+ vmesa->swap_missed_count++;
+ (*dri_interface->getUST)( &vmesa->swap_missed_ust );
+ }
+ }
+ while (!viaCheckBreadcrumb(vmesa, value));
+
+ vmesa->thrashing = 0; /* reset flag on swap */
+ vmesa->swap_count++;
+ via_release_pending_textures( vmesa );
+}
+
+
+
+static void viaDoPageFlipLocked(struct via_context *vmesa, GLuint offset)
+{
+ RING_VARS;
+
+ if (VIA_DEBUG & DEBUG_2D)
+ fprintf(stderr, "%s %x\n", __FUNCTION__, offset);
+
+ if (!vmesa->nDoneFirstFlip) {
+ vmesa->nDoneFirstFlip = GL_TRUE;
+ BEGIN_RING(4);
+ OUT_RING(HALCYON_HEADER2);
+ OUT_RING(0x00fe0000);
+ OUT_RING(0x0000000e);
+ OUT_RING(0x0000000e);
+ ADVANCE_RING();
+ }
+
+ BEGIN_RING(4);
+ OUT_RING( HALCYON_HEADER2 );
+ OUT_RING( 0x00fe0000 );
+ OUT_RING((HC_SubA_HFBBasL << 24) | (offset & 0xFFFFF8) | 0x2);
+ OUT_RING((HC_SubA_HFBDrawFirst << 24) |
+ ((offset & 0xFF000000) >> 24) | 0x0100);
+ ADVANCE_RING();
+
+ vmesa->pfCurrentOffset = vmesa->sarea->pfCurrentOffset = offset;
+
+ viaFlushDmaLocked(vmesa, VIA_NO_CLIPRECTS); /* often redundant */
+}
+
+void viaResetPageFlippingLocked(struct via_context *vmesa)
+{
+ if (VIA_DEBUG & DEBUG_2D)
+ fprintf(stderr, "%s\n", __FUNCTION__);
+
+ viaDoPageFlipLocked( vmesa, 0 );
+
+ if (vmesa->front.offset != 0) {
+ struct via_buffer buffer_tmp;
+ memcpy(&buffer_tmp, &vmesa->back, sizeof(struct via_buffer));
+ memcpy(&vmesa->back, &vmesa->front, sizeof(struct via_buffer));
+ memcpy(&vmesa->front, &buffer_tmp, sizeof(struct via_buffer));
+ }
+
+ assert(vmesa->front.offset == 0);
+ vmesa->doPageFlip = vmesa->allowPageFlip = 0;
+}
+
+
+/*
+ * Copy the back buffer to the front buffer.
+ */
+void viaCopyBuffer(const __DRIdrawablePrivate *dPriv)
+{
+ struct via_context *vmesa =
+ (struct via_context *)dPriv->driContextPriv->driverPrivate;
+
+ if (VIA_DEBUG & DEBUG_IOCTL)
+ fprintf(stderr,
+ "%s: lastSwap[1] %d lastSwap[0] %d lastWrite %d lastRead %d\n",
+ __FUNCTION__,
+ vmesa->lastSwap[1],
+ vmesa->lastSwap[0],
+ vmesa->lastBreadcrumbWrite,
+ vmesa->lastBreadcrumbRead);
+
+ VIA_FLUSH_DMA(vmesa);
+
+ if (vmesa->vblank_flags == VBLANK_FLAG_SYNC &&
+ vmesa->lastBreadcrumbWrite > 1)
+ viaWaitIdleVBlank(dPriv, vmesa, vmesa->lastBreadcrumbWrite-1);
+ else
+ viaWaitIdleVBlank(dPriv, vmesa, vmesa->lastSwap[1]);
+
+ LOCK_HARDWARE(vmesa);
+
+ /* Catch and cleanup situation where we were pageflipping but have
+ * stopped.
+ */
+ if (dPriv->numClipRects && vmesa->sarea->pfCurrentOffset != 0) {
+ viaResetPageFlippingLocked(vmesa);
+ UNLOCK_HARDWARE(vmesa);
+ return;
+ }
+
+ viaDoSwapBuffers(vmesa, dPriv->pClipRects, dPriv->numClipRects);
+ vmesa->lastSwap[1] = vmesa->lastSwap[0];
+ vmesa->lastSwap[0] = vmesa->lastBreadcrumbWrite;
+ viaEmitBreadcrumbLocked(vmesa);
+ UNLOCK_HARDWARE(vmesa);
+
+ (*dri_interface->getUST)( &vmesa->swap_ust );
+}
+
+
+void viaPageFlip(const __DRIdrawablePrivate *dPriv)
+{
+ struct via_context *vmesa =
+ (struct via_context *)dPriv->driContextPriv->driverPrivate;
+ struct via_buffer buffer_tmp;
+
+ VIA_FLUSH_DMA(vmesa);
+ if (vmesa->vblank_flags == VBLANK_FLAG_SYNC &&
+ vmesa->lastBreadcrumbWrite > 1)
+ viaWaitIdleVBlank(dPriv, vmesa, vmesa->lastBreadcrumbWrite - 1);
+ else
+ viaWaitIdleVBlank(dPriv, vmesa, vmesa->lastSwap[0]);
+
+ LOCK_HARDWARE(vmesa);
+ viaDoPageFlipLocked(vmesa, vmesa->back.offset);
+ vmesa->lastSwap[1] = vmesa->lastSwap[0];
+ vmesa->lastSwap[0] = vmesa->lastBreadcrumbWrite;
+ viaEmitBreadcrumbLocked(vmesa);
+ UNLOCK_HARDWARE(vmesa);
+
+ (*dri_interface->getUST)( &vmesa->swap_ust );
+
+
+ /* KW: FIXME: When buffers are freed, could free frontbuffer by
+ * accident:
+ */
+ memcpy(&buffer_tmp, &vmesa->back, sizeof(struct via_buffer));
+ memcpy(&vmesa->back, &vmesa->front, sizeof(struct via_buffer));
+ memcpy(&vmesa->front, &buffer_tmp, sizeof(struct via_buffer));
+}
+
+
+
+
+#define VIA_CMDBUF_MAX_LAG 50000
+
+static int fire_buffer(struct via_context *vmesa)
+{
+ drm_via_cmdbuffer_t bufI;
+ int ret;
+
+ bufI.buf = (char *)vmesa->dma;
+ bufI.size = vmesa->dmaLow;
+
+ if (vmesa->useAgp) {
+ drm_via_cmdbuf_size_t bSiz;
+
+ /* Do the CMDBUF_SIZE ioctl:
+ */
+ bSiz.func = VIA_CMDBUF_LAG;
+ bSiz.wait = 1;
+ bSiz.size = VIA_CMDBUF_MAX_LAG;
+ do {
+ ret = drmCommandWriteRead(vmesa->driFd, DRM_VIA_CMDBUF_SIZE,
+ &bSiz, sizeof(bSiz));
+ } while (ret == -EAGAIN);
+ if (ret) {
+ UNLOCK_HARDWARE(vmesa);
+ fprintf(stderr, "%s: DRM_VIA_CMDBUF_SIZE returned %d\n",
+ __FUNCTION__, ret);
+ abort();
+ return ret;
+ }
+
+ /* Actually fire the buffer:
+ */
+ do {
+ ret = drmCommandWrite(vmesa->driFd, DRM_VIA_CMDBUFFER,
+ &bufI, sizeof(bufI));
+ } while (ret == -EAGAIN);
+ if (ret) {
+ UNLOCK_HARDWARE(vmesa);
+ fprintf(stderr, "%s: DRM_VIA_CMDBUFFER returned %d\n",
+ __FUNCTION__, ret);
+ abort();
+ /* If this fails, the original code fell back to the PCI path.
+ */
+ }
+ else
+ return 0;
+
+ /* Fall through to PCI handling?!?
+ */
+ viaWaitIdleLocked(vmesa, GL_FALSE);
+ }
+
+ ret = drmCommandWrite(vmesa->driFd, DRM_VIA_PCICMD, &bufI, sizeof(bufI));
+ if (ret) {
+ UNLOCK_HARDWARE(vmesa);
+ dump_dma(vmesa);
+ fprintf(stderr, "%s: DRM_VIA_PCICMD returned %d\n", __FUNCTION__, ret);
+ abort();
+ }
+
+ return ret;
+}
+
+
+/* Inserts the surface addresss and active cliprects one at a time
+ * into the head of the DMA buffer being flushed. Fires the buffer
+ * for each cliprect.
+ */
+static void via_emit_cliprect(struct via_context *vmesa,
+ drm_clip_rect_t *b)
+{
+ struct via_buffer *buffer = vmesa->drawBuffer;
+ GLuint *vb = (GLuint *)(vmesa->dma + vmesa->dmaCliprectAddr);
+
+ GLuint format = (vmesa->viaScreen->bitsPerPixel == 0x20
+ ? HC_HDBFM_ARGB8888
+ : HC_HDBFM_RGB565);
+
+ GLuint pitch = buffer->pitch;
+ GLuint offset = buffer->orig;
+
+ if (0)
+ fprintf(stderr, "emit cliprect for box %d,%d %d,%d\n",
+ b->x1, b->y1, b->x2, b->y2);
+
+ vb[0] = HC_HEADER2;
+ vb[1] = (HC_ParaType_NotTex << 16);
+
+ if (vmesa->driDrawable->w == 0 || vmesa->driDrawable->h == 0) {
+ vb[2] = (HC_SubA_HClipTB << 24) | 0x0;
+ vb[3] = (HC_SubA_HClipLR << 24) | 0x0;
+ }
+ else {
+ vb[2] = (HC_SubA_HClipTB << 24) | (b->y1 << 12) | b->y2;
+ vb[3] = (HC_SubA_HClipLR << 24) | (b->x1 << 12) | b->x2;
+ }
+
+ vb[4] = (HC_SubA_HDBBasL << 24) | (offset & 0xFFFFFF);
+ vb[5] = (HC_SubA_HDBBasH << 24) | ((offset & 0xFF000000) >> 24);
+
+ vb[6] = (HC_SubA_HSPXYOS << 24) | ((31-vmesa->drawXoff) << HC_HSPXOS_SHIFT);
+ vb[7] = (HC_SubA_HDBFM << 24) | HC_HDBLoc_Local | format | pitch;
+}
+
+
+
+static int intersect_rect(drm_clip_rect_t *out,
+ drm_clip_rect_t *a,
+ drm_clip_rect_t *b)
+{
+ *out = *a;
+
+ if (0)
+ fprintf(stderr, "intersect %d,%d %d,%d and %d,%d %d,%d\n",
+ a->x1, a->y1, a->x2, a->y2,
+ b->x1, b->y1, b->x2, b->y2);
+
+ if (b->x1 > out->x1) out->x1 = b->x1;
+ if (b->x2 < out->x2) out->x2 = b->x2;
+ if (out->x1 >= out->x2) return 0;
+
+ if (b->y1 > out->y1) out->y1 = b->y1;
+ if (b->y2 < out->y2) out->y2 = b->y2;
+ if (out->y1 >= out->y2) return 0;
+
+ return 1;
+}
+
+void viaFlushDmaLocked(struct via_context *vmesa, GLuint flags)
+{
+ int i;
+ RING_VARS;
+
+ if (VIA_DEBUG & (DEBUG_IOCTL|DEBUG_DMA))
+ fprintf(stderr, "%s\n", __FUNCTION__);
+
+ if (*(GLuint *)vmesa->driHwLock != (DRM_LOCK_HELD|vmesa->hHWContext) &&
+ *(GLuint *)vmesa->driHwLock !=
+ (DRM_LOCK_HELD|DRM_LOCK_CONT|vmesa->hHWContext)) {
+ fprintf(stderr, "%s called without lock held\n", __FUNCTION__);
+ abort();
+ }
+
+ if (vmesa->dmaLow == 0) {
+ return;
+ }
+
+ assert(vmesa->dmaLastPrim == 0);
+
+ /* viaFinishPrimitive can add up to 8 bytes beyond VIA_DMA_HIGHWATER:
+ */
+ if (vmesa->dmaLow > VIA_DMA_HIGHWATER + 8) {
+ fprintf(stderr, "buffer overflow in Flush Prims = %d\n",vmesa->dmaLow);
+ abort();
+ }
+
+ switch (vmesa->dmaLow & 0x1F) {
+ case 8:
+ BEGIN_RING_NOCHECK( 6 );
+ OUT_RING( HC_HEADER2 );
+ OUT_RING( (HC_ParaType_NotTex << 16) );
+ OUT_RING( HC_DUMMY );
+ OUT_RING( HC_DUMMY );
+ OUT_RING( HC_DUMMY );
+ OUT_RING( HC_DUMMY );
+ ADVANCE_RING();
+ break;
+ case 16:
+ BEGIN_RING_NOCHECK( 4 );
+ OUT_RING( HC_HEADER2 );
+ OUT_RING( (HC_ParaType_NotTex << 16) );
+ OUT_RING( HC_DUMMY );
+ OUT_RING( HC_DUMMY );
+ ADVANCE_RING();
+ break;
+ case 24:
+ BEGIN_RING_NOCHECK( 10 );
+ OUT_RING( HC_HEADER2 );
+ OUT_RING( (HC_ParaType_NotTex << 16) );
+ OUT_RING( HC_DUMMY );
+ OUT_RING( HC_DUMMY );
+ OUT_RING( HC_DUMMY );
+ OUT_RING( HC_DUMMY );
+ OUT_RING( HC_DUMMY );
+ OUT_RING( HC_DUMMY );
+ OUT_RING( HC_DUMMY );
+ OUT_RING( HC_DUMMY );
+ ADVANCE_RING();
+ break;
+ case 0:
+ break;
+ default:
+ if (VIA_DEBUG & DEBUG_IOCTL)
+ fprintf(stderr, "%s: unaligned value for vmesa->dmaLow: %x\n",
+ __FUNCTION__, vmesa->dmaLow);
+ }
+
+ vmesa->lastDma = vmesa->lastBreadcrumbWrite;
+
+ if (VIA_DEBUG & DEBUG_DMA)
+ dump_dma( vmesa );
+
+ if (flags & VIA_NO_CLIPRECTS) {
+ if (0) fprintf(stderr, "%s VIA_NO_CLIPRECTS\n", __FUNCTION__);
+ assert(vmesa->dmaCliprectAddr == ~0);
+ fire_buffer( vmesa );
+ }
+ else if (vmesa->dmaCliprectAddr == ~0) {
+ /* Contains only state. Could just dump the packet?
+ */
+ if (0) fprintf(stderr, "%s: no dmaCliprectAddr\n", __FUNCTION__);
+ if (0) fire_buffer( vmesa );
+ }
+ else if (vmesa->numClipRects) {
+ drm_clip_rect_t *pbox = vmesa->pClipRects;
+
+ for (i = 0; i < vmesa->numClipRects; i++) {
+ drm_clip_rect_t b;
+
+ b.x1 = pbox[i].x1 - (vmesa->drawX + vmesa->drawXoff);
+ b.x2 = pbox[i].x2 - (vmesa->drawX + vmesa->drawXoff);
+ b.y1 = pbox[i].y1 - vmesa->drawY;
+ b.y2 = pbox[i].y2 - vmesa->drawY;
+
+ if (vmesa->scissor &&
+ !intersect_rect(&b, &b, &vmesa->scissorRect))
+ continue;
+
+ b.x1 += vmesa->drawXoff;
+ b.x2 += vmesa->drawXoff;
+
+ via_emit_cliprect(vmesa, &b);
+
+ if (fire_buffer(vmesa) != 0) {
+ dump_dma( vmesa );
+ goto done;
+ }
+ }
+ } else {
+ if (0) fprintf(stderr, "%s: no cliprects\n", __FUNCTION__);
+ UNLOCK_HARDWARE(vmesa);
+ sched_yield();
+ LOCK_HARDWARE(vmesa);
+ }
+
+ done:
+ /* Reset vmesa vars:
+ */
+ vmesa->dmaLow = 0;
+ vmesa->dmaCliprectAddr = ~0;
+ vmesa->newEmitState = ~0;
+}
+
+void viaWrapPrimitive( struct via_context *vmesa )
+{
+ GLenum renderPrimitive = vmesa->renderPrimitive;
+ GLenum hwPrimitive = vmesa->hwPrimitive;
+
+ if (VIA_DEBUG & DEBUG_PRIMS) fprintf(stderr, "%s\n", __FUNCTION__);
+
+ if (vmesa->dmaLastPrim)
+ viaFinishPrimitive( vmesa );
+
+ viaFlushDma(vmesa);
+
+ if (renderPrimitive != GL_POLYGON + 1)
+ viaRasterPrimitive( vmesa->glCtx,
+ renderPrimitive,
+ hwPrimitive );
+
+}
+
+void viaFlushDma(struct via_context *vmesa)
+{
+ if (vmesa->dmaLow) {
+ assert(!vmesa->dmaLastPrim);
+
+ LOCK_HARDWARE(vmesa);
+ viaFlushDmaLocked(vmesa, 0);
+ UNLOCK_HARDWARE(vmesa);
+ }
+}
+
+static void viaFlush(GLcontext *ctx)
+{
+ struct via_context *vmesa = VIA_CONTEXT(ctx);
+ VIA_FLUSH_DMA(vmesa);
+}
+
+static void viaFinish(GLcontext *ctx)
+{
+ struct via_context *vmesa = VIA_CONTEXT(ctx);
+ VIA_FLUSH_DMA(vmesa);
+ viaWaitIdle(vmesa, GL_FALSE);
+}
+
+static void viaClearStencil(GLcontext *ctx, int s)
+{
+ return;
+}
+
+void viaInitIoctlFuncs(GLcontext *ctx)
+{
+ ctx->Driver.Flush = viaFlush;
+ ctx->Driver.Clear = viaClear;
+ ctx->Driver.Finish = viaFinish;
+ ctx->Driver.ClearStencil = viaClearStencil;
+}
+
+
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-01 22:25:27 +0000