#include "vblank.h"
#include "i915_drm.h"
-/* This block can be removed when libdrm >= 2.3.1 is required */
-
-#ifndef DRM_IOCTL_I915_FLIP
-
-#define DRM_VBLANK_FLIP 0x8000000
-
-typedef struct drm_i915_flip {
- int pipes;
-} drm_i915_flip_t;
-
-#undef DRM_IOCTL_I915_FLIP
-#define DRM_IOCTL_I915_FLIP DRM_IOW(DRM_COMMAND_BASE + DRM_I915_FLIP, \
- drm_i915_flip_t)
-
-#endif
-
#define FILE_DEBUG_FLAG DEBUG_BLIT
/**
*num_cliprects = 1;
*x_off = 0;
*y_off = 0;
- } else if (intel->front_cliprects ||
- intel_fb->pf_active || dPriv->numBackClipRects == 0) {
+ } else if (intel->front_cliprects || dPriv->numBackClipRects == 0) {
/* use the front clip rects */
*cliprects = dPriv->pClipRects;
*num_cliprects = dPriv->numClipRects;
}
}
-static void
-intelUpdatePageFlipping(struct intel_context *intel,
- GLint areaA, GLint areaB)
-{
- __DRIdrawablePrivate *dPriv = intel->driDrawable;
- struct intel_framebuffer *intel_fb = dPriv->driverPrivate;
- GLboolean pf_active;
- GLint pf_planes;
-
- /* Update page flipping info */
- pf_planes = 0;
-
- if (areaA > 0)
- pf_planes |= 1;
-
- if (areaB > 0)
- pf_planes |= 2;
-
- intel_fb->pf_current_page = (intel->sarea->pf_current_page >>
- (intel_fb->pf_planes & 0x2)) & 0x3;
-
- intel_fb->pf_num_pages = 2;
-
- pf_active = pf_planes && (pf_planes & intel->sarea->pf_active) == pf_planes;
-
- if (INTEL_DEBUG & DEBUG_LOCK)
- if (pf_active != intel_fb->pf_active)
- _mesa_printf("%s - Page flipping %sactive\n", __progname,
- pf_active ? "" : "in");
-
- if (pf_active) {
- /* Sync pages between planes if flipping on both at the same time */
- if (pf_planes == 0x3 && pf_planes != intel_fb->pf_planes &&
- (intel->sarea->pf_current_page & 0x3) !=
- (((intel->sarea->pf_current_page) >> 2) & 0x3)) {
- drm_i915_flip_t flip;
-
- if (intel_fb->pf_current_page ==
- (intel->sarea->pf_current_page & 0x3)) {
- /* XXX: This is ugly, but emitting two flips 'in a row' can cause
- * lockups for unknown reasons.
- */
- intel->sarea->pf_current_page =
- intel->sarea->pf_current_page & 0x3;
- intel->sarea->pf_current_page |=
- ((intel_fb->pf_current_page + intel_fb->pf_num_pages - 1) %
- intel_fb->pf_num_pages) << 2;
-
- flip.pipes = 0x2;
- } else {
- intel->sarea->pf_current_page =
- intel->sarea->pf_current_page & (0x3 << 2);
- intel->sarea->pf_current_page |=
- (intel_fb->pf_current_page + intel_fb->pf_num_pages - 1) %
- intel_fb->pf_num_pages;
-
- flip.pipes = 0x1;
- }
-
- drmCommandWrite(intel->driFd, DRM_I915_FLIP, &flip, sizeof(flip));
- }
-
- intel_fb->pf_planes = pf_planes;
- }
-
- intel_fb->pf_active = pf_active;
- intel_flip_renderbuffers(intel_fb);
- intel_draw_buffer(&intel->ctx, intel->ctx.DrawBuffer);
-}
-
/**
* This will be called whenever the currently bound window is moved/resized.
* XXX: actually, it seems to NOT be called when the window is only moved (BP).
GLint areaB = driIntersectArea( drw_rect, planeB_rect );
GLuint flags = dPriv->vblFlags;
- intelUpdatePageFlipping(intel, areaA, areaB);
-
/* Update vblank info
*/
if (areaB > areaA || (areaA == areaB && areaB > 0)) {
vbl.request.type |= DRM_VBLANK_SECONDARY;
}
- for (i = 0; i < intel_fb->pf_num_pages; i++) {
+ for (i = 0; i < 2; i++) {
if (!intel_fb->color_rb[i] ||
(intel_fb->vbl_waited - intel_fb->color_rb[i]->vbl_pending) <=
(1<<23))
intel_fb->vbl_waited = dPriv->vblSeq;
- for (i = 0; i < intel_fb->pf_num_pages; i++) {
+ for (i = 0; i < 2; i++) {
if (intel_fb->color_rb[i])
intel_fb->color_rb[i]->vbl_pending = intel_fb->vbl_waited;
}
}
}
-
-/* Emit wait for pending flips */
-void
-intel_wait_flips(struct intel_context *intel)
-{
- struct intel_framebuffer *intel_fb =
- (struct intel_framebuffer *) intel->ctx.DrawBuffer;
- struct intel_renderbuffer *intel_rb =
- intel_get_renderbuffer(&intel_fb->Base,
- intel_fb->Base._ColorDrawBufferIndexes[0] ==
- BUFFER_FRONT_LEFT ? BUFFER_FRONT_LEFT :
- BUFFER_BACK_LEFT);
-
- if (intel->intelScreen->driScrnPriv->dri2.enabled)
- return;
-
- if (intel_fb->Base.Name == 0 && intel_rb &&
- intel_rb->pf_pending == intel_fb->pf_seq) {
- GLint pf_planes = intel_fb->pf_planes;
- BATCH_LOCALS;
-
- /* Wait for pending flips to take effect */
- BEGIN_BATCH(2, NO_LOOP_CLIPRECTS);
- OUT_BATCH(pf_planes & 0x1 ? (MI_WAIT_FOR_EVENT | MI_WAIT_FOR_PLANE_A_FLIP)
- : 0);
- OUT_BATCH(pf_planes & 0x2 ? (MI_WAIT_FOR_EVENT | MI_WAIT_FOR_PLANE_B_FLIP)
- : 0);
- ADVANCE_BATCH();
-
- intel_rb->pf_pending--;
- }
-}
-
-
-/* Flip the front & back buffers
- */
-static GLboolean
-intelPageFlip(const __DRIdrawablePrivate * dPriv)
-{
- struct intel_context *intel;
- int ret;
- struct intel_framebuffer *intel_fb = dPriv->driverPrivate;
-
- if (INTEL_DEBUG & DEBUG_IOCTL)
- fprintf(stderr, "%s\n", __FUNCTION__);
-
- assert(dPriv);
- assert(dPriv->driContextPriv);
- assert(dPriv->driContextPriv->driverPrivate);
-
- intel = (struct intel_context *) dPriv->driContextPriv->driverPrivate;
-
- if (intel->intelScreen->drmMinor < 9)
- return GL_FALSE;
-
- intelFlush(&intel->ctx);
-
- ret = 0;
-
- LOCK_HARDWARE(intel);
-
- if (dPriv->numClipRects && intel_fb->pf_active) {
- drm_i915_flip_t flip;
-
- flip.pipes = intel_fb->pf_planes;
-
- ret = drmCommandWrite(intel->driFd, DRM_I915_FLIP, &flip, sizeof(flip));
- }
-
- UNLOCK_HARDWARE(intel);
-
- if (ret || !intel_fb->pf_active)
- return GL_FALSE;
-
- if (!dPriv->numClipRects) {
- usleep(10000); /* throttle invisible client 10ms */
- }
-
- intel_fb->pf_current_page = (intel->sarea->pf_current_page >>
- (intel_fb->pf_planes & 0x2)) & 0x3;
-
- if (dPriv->numClipRects != 0) {
- intel_get_renderbuffer(&intel_fb->Base, BUFFER_FRONT_LEFT)->pf_pending =
- intel_get_renderbuffer(&intel_fb->Base, BUFFER_BACK_LEFT)->pf_pending =
- ++intel_fb->pf_seq;
- }
-
- intel_flip_renderbuffers(intel_fb);
- intel_draw_buffer(&intel->ctx, &intel_fb->Base);
-
- return GL_TRUE;
-}
-
-static GLboolean
-intelScheduleSwap(__DRIdrawablePrivate * dPriv, GLboolean *missed_target)
-{
- struct intel_framebuffer *intel_fb = dPriv->driverPrivate;
- unsigned int interval;
- struct intel_context *intel =
- intelScreenContext(dPriv->driScreenPriv->private);
- const intelScreenPrivate *intelScreen = intel->intelScreen;
- unsigned int target;
- drm_i915_vblank_swap_t swap;
- GLboolean ret;
-
- if (!dPriv->vblFlags ||
- (dPriv->vblFlags & VBLANK_FLAG_NO_IRQ) ||
- intelScreen->drmMinor < (intel_fb->pf_active ? 9 : 6))
- return GL_FALSE;
-
- interval = driGetVBlankInterval(dPriv);
-
- swap.seqtype = DRM_VBLANK_ABSOLUTE;
-
- if (dPriv->vblFlags & VBLANK_FLAG_SYNC) {
- swap.seqtype |= DRM_VBLANK_NEXTONMISS;
- } else if (interval == 0)
- return GL_FALSE;
-
- swap.drawable = dPriv->hHWDrawable;
- target = swap.sequence = dPriv->vblSeq + interval;
-
- if ( dPriv->vblFlags & VBLANK_FLAG_SECONDARY ) {
- swap.seqtype |= DRM_VBLANK_SECONDARY;
- }
-
- LOCK_HARDWARE(intel);
-
- intel_batchbuffer_flush(intel->batch);
-
- if ( intel_fb->pf_active ) {
- swap.seqtype |= DRM_VBLANK_FLIP;
-
- intel_fb->pf_current_page = (((intel->sarea->pf_current_page >>
- (intel_fb->pf_planes & 0x2)) & 0x3) + 1) %
- intel_fb->pf_num_pages;
- }
-
- if (!drmCommandWriteRead(intel->driFd, DRM_I915_VBLANK_SWAP, &swap,
- sizeof(swap))) {
- dPriv->vblSeq = swap.sequence;
- swap.sequence -= target;
- *missed_target = swap.sequence > 0 && swap.sequence <= (1 << 23);
-
- intel_get_renderbuffer(&intel_fb->Base, BUFFER_BACK_LEFT)->vbl_pending =
- intel_get_renderbuffer(&intel_fb->Base,
- BUFFER_FRONT_LEFT)->vbl_pending =
- dPriv->vblSeq;
-
- if (swap.seqtype & DRM_VBLANK_FLIP) {
- intel_flip_renderbuffers(intel_fb);
- intel_draw_buffer(&intel->ctx, intel->ctx.DrawBuffer);
- }
-
- ret = GL_TRUE;
- } else {
- if (swap.seqtype & DRM_VBLANK_FLIP) {
- intel_fb->pf_current_page = ((intel->sarea->pf_current_page >>
- (intel_fb->pf_planes & 0x2)) & 0x3) %
- intel_fb->pf_num_pages;
- }
-
- ret = GL_FALSE;
- }
-
- UNLOCK_HARDWARE(intel);
-
- return ret;
-}
-
void
intelSwapBuffers(__DRIdrawablePrivate * dPriv)
{
_mesa_notifySwapBuffers(ctx); /* flush pending rendering comands */
- if (!intelScheduleSwap(dPriv, &missed_target)) {
- driWaitForVBlank(dPriv, &missed_target);
+ /*
+ * The old swapping ioctl was incredibly racy, just wait for vblank
+ * and do the swap ourselves.
+ */
+ driWaitForVBlank(dPriv, &missed_target);
- /*
- * Update each buffer's vbl_pending so we don't get too out of
- * sync
- */
- intel_get_renderbuffer(&intel_fb->Base,
- BUFFER_BACK_LEFT)->vbl_pending =
- intel_get_renderbuffer(&intel_fb->Base,
- BUFFER_FRONT_LEFT)->vbl_pending =
- dPriv->vblSeq;
- if (!intelPageFlip(dPriv)) {
- intelCopyBuffer(dPriv, NULL);
- }
- }
+ /*
+ * Update each buffer's vbl_pending so we don't get too out of
+ * sync
+ */
+ intel_get_renderbuffer(&intel_fb->Base,
+ BUFFER_BACK_LEFT)->vbl_pending = dPriv->vblSeq;
+ intel_get_renderbuffer(&intel_fb->Base,
+ BUFFER_FRONT_LEFT)->vbl_pending = dPriv->vblSeq;
+
+ intelCopyBuffer(dPriv, NULL);
intel_fb->swap_count++;
(*psp->systemTime->getUST) (&ust);