diff options
Diffstat (limited to 'src/gallium/drivers/nvc0/nvc0_fence.c')
| -rw-r--r-- | src/gallium/drivers/nvc0/nvc0_fence.c | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/src/gallium/drivers/nvc0/nvc0_fence.c b/src/gallium/drivers/nvc0/nvc0_fence.c deleted file mode 100644 index f2d4b1451b..0000000000 --- a/src/gallium/drivers/nvc0/nvc0_fence.c +++ /dev/null @@ -1,210 +0,0 @@ -/* - * Copyright 2010 Christoph Bumiller - * - * 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 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 AUTHORS 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 "nvc0_fence.h" -#include "nvc0_context.h" -#include "nvc0_screen.h" - -#ifdef PIPE_OS_UNIX -#include <sched.h> -#endif - -boolean -nvc0_screen_fence_new(struct nvc0_screen *screen, struct nvc0_fence **fence, - boolean emit) -{ - *fence = CALLOC_STRUCT(nvc0_fence); - if (!*fence) - return FALSE; - - (*fence)->screen = screen; - (*fence)->ref = 1; - - if (emit) - nvc0_fence_emit(*fence); - - return TRUE; -} - -void -nvc0_fence_emit(struct nvc0_fence *fence) -{ - struct nvc0_screen *screen = fence->screen; - struct nouveau_channel *chan = screen->base.channel; - - fence->sequence = ++screen->fence.sequence; - - assert(fence->state == NVC0_FENCE_STATE_AVAILABLE); - - MARK_RING (chan, 5, 2); - BEGIN_RING(chan, RING_3D(QUERY_ADDRESS_HIGH), 4); - OUT_RELOCh(chan, screen->fence.bo, 0, NOUVEAU_BO_WR); - OUT_RELOCl(chan, screen->fence.bo, 0, NOUVEAU_BO_WR); - OUT_RING (chan, fence->sequence); - OUT_RING (chan, NVC0_3D_QUERY_GET_FENCE | NVC0_3D_QUERY_GET_SHORT | - (0xf << NVC0_3D_QUERY_GET_UNIT__SHIFT)); - - ++fence->ref; - - if (screen->fence.tail) - screen->fence.tail->next = fence; - else - screen->fence.head = fence; - - screen->fence.tail = fence; - - fence->state = NVC0_FENCE_STATE_EMITTED; -} - -static void -nvc0_fence_trigger_release_buffers(struct nvc0_fence *fence); - -void -nvc0_fence_del(struct nvc0_fence *fence) -{ - struct nvc0_fence *it; - struct nvc0_screen *screen = fence->screen; - - if (fence->state == NVC0_FENCE_STATE_EMITTED || - fence->state == NVC0_FENCE_STATE_FLUSHED) { - if (fence == screen->fence.head) { - screen->fence.head = fence->next; - if (!screen->fence.head) - screen->fence.tail = NULL; - } else { - for (it = screen->fence.head; it && it->next != fence; it = it->next); - it->next = fence->next; - if (screen->fence.tail == fence) - screen->fence.tail = it; - } - } - - if (fence->buffers) { - debug_printf("WARNING: deleting fence with buffers " - "still hooked to it !\n"); - nvc0_fence_trigger_release_buffers(fence); - } - - FREE(fence); -} - -static void -nvc0_fence_trigger_release_buffers(struct nvc0_fence *fence) -{ - struct nvc0_mm_allocation *alloc = fence->buffers; - - while (alloc) { - struct nvc0_mm_allocation *next = alloc->next; - nvc0_mm_free(alloc); - alloc = next; - }; - fence->buffers = NULL; -} - -void -nvc0_screen_fence_update(struct nvc0_screen *screen, boolean flushed) -{ - struct nvc0_fence *fence; - struct nvc0_fence *next = NULL; - uint32_t sequence = screen->fence.map[0]; - - if (screen->fence.sequence_ack == sequence) - return; - screen->fence.sequence_ack = sequence; - - for (fence = screen->fence.head; fence; fence = next) { - next = fence->next; - sequence = fence->sequence; - - fence->state = NVC0_FENCE_STATE_SIGNALLED; - - if (fence->buffers) - nvc0_fence_trigger_release_buffers(fence); - - nvc0_fence_reference(&fence, NULL); - - if (sequence == screen->fence.sequence_ack) - break; - } - screen->fence.head = next; - if (!next) - screen->fence.tail = NULL; - - if (flushed) { - for (fence = next; fence; fence = fence->next) - fence->state = NVC0_FENCE_STATE_FLUSHED; - } -} - -boolean -nvc0_fence_signalled(struct nvc0_fence *fence) -{ - struct nvc0_screen *screen = fence->screen; - - if (fence->state >= NVC0_FENCE_STATE_EMITTED) - nvc0_screen_fence_update(screen, FALSE); - - return fence->state == NVC0_FENCE_STATE_SIGNALLED; -} - -#define NVC0_FENCE_MAX_SPINS (1 << 31) - -boolean -nvc0_fence_wait(struct nvc0_fence *fence) -{ - struct nvc0_screen *screen = fence->screen; - uint32_t spins = 0; - - if (fence->state < NVC0_FENCE_STATE_EMITTED) { - nvc0_fence_emit(fence); - - if (fence == screen->fence.current) - nvc0_screen_fence_new(screen, &screen->fence.current, FALSE); - } - if (fence->state < NVC0_FENCE_STATE_FLUSHED) - FIRE_RING(screen->base.channel); - - do { - nvc0_screen_fence_update(screen, FALSE); - - if (fence->state == NVC0_FENCE_STATE_SIGNALLED) - return TRUE; - spins++; -#ifdef PIPE_OS_UNIX - if (!(spins % 8)) /* donate a few cycles */ - sched_yield(); -#endif - } while (spins < NVC0_FENCE_MAX_SPINS); - - debug_printf("Wait on fence %u (ack = %u, next = %u) timed out !\n", - fence->sequence, - screen->fence.sequence_ack, screen->fence.sequence); - - return FALSE; -} - -void -nvc0_screen_fence_next(struct nvc0_screen *screen) -{ - nvc0_fence_emit(screen->fence.current); - nvc0_screen_fence_new(screen, &screen->fence.current, FALSE); -} |