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nouveau: use ttm populate mapping functions. (v2)
Instead of rolling driver copies of them. v2: cleanup return handling (Ben) Reviewed-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200804025632.3868079-4-airlied@gmail.com
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1 changed files with 2 additions and 36 deletions
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@ -1526,8 +1526,6 @@ nouveau_ttm_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
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struct ttm_dma_tt *ttm_dma = (void *)ttm;
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struct nouveau_drm *drm;
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struct device *dev;
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unsigned i;
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int r;
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bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG);
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if (ttm->state != tt_unpopulated)
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@ -1555,31 +1553,7 @@ nouveau_ttm_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
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return ttm_dma_populate((void *)ttm, dev, ctx);
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}
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#endif
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r = ttm_pool_populate(ttm, ctx);
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if (r) {
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return r;
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}
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for (i = 0; i < ttm->num_pages; i++) {
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dma_addr_t addr;
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addr = dma_map_page(dev, ttm->pages[i], 0, PAGE_SIZE,
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DMA_BIDIRECTIONAL);
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if (dma_mapping_error(dev, addr)) {
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while (i--) {
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dma_unmap_page(dev, ttm_dma->dma_address[i],
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PAGE_SIZE, DMA_BIDIRECTIONAL);
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ttm_dma->dma_address[i] = 0;
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}
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ttm_pool_unpopulate(ttm);
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return -EFAULT;
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}
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ttm_dma->dma_address[i] = addr;
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}
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return 0;
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return ttm_populate_and_map_pages(dev, ttm_dma, ctx);
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}
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static void
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@ -1588,7 +1562,6 @@ nouveau_ttm_tt_unpopulate(struct ttm_tt *ttm)
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struct ttm_dma_tt *ttm_dma = (void *)ttm;
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struct nouveau_drm *drm;
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struct device *dev;
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unsigned i;
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bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG);
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if (slave)
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@ -1611,14 +1584,7 @@ nouveau_ttm_tt_unpopulate(struct ttm_tt *ttm)
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}
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#endif
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for (i = 0; i < ttm->num_pages; i++) {
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if (ttm_dma->dma_address[i]) {
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dma_unmap_page(dev, ttm_dma->dma_address[i], PAGE_SIZE,
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DMA_BIDIRECTIONAL);
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}
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}
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ttm_pool_unpopulate(ttm);
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ttm_unmap_and_unpopulate_pages(dev, ttm_dma);
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}
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void
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