search for: ttm_tt_unbind

...ache_sync_for_cpu(struct ttm_dma_tt *ttm_dma, + struct device *dev) +{ + int i; + + for (i = 0; i < ttm_dma->ttm.num_pages; i++) { + dma_sync_single_for_cpu(dev, ttm_dma->dma_address[i], + PAGE_SIZE, DMA_FROM_DEVICE); + } +} +EXPORT_SYMBOL(ttm_dma_tt_cache_sync_for_cpu); + void ttm_tt_unbind(struct ttm_tt *ttm) { int ret; diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index a5183da3ef92..52fb709568fc 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -41,6 +41,7 @@ #include <linux/fs.h> #include <linux/spi...

...for_cpu(struct ttm_dma_tt *ttm_dma, + struct device *dev) +{ + unsigned long i; + + for (i = 0; i < ttm_dma->ttm.num_pages; i++) { + dma_sync_single_for_cpu(dev, ttm_dma->dma_address[i], + PAGE_SIZE, DMA_FROM_DEVICE); + } +} +EXPORT_SYMBOL(ttm_dma_tt_cache_sync_for_cpu); + void ttm_tt_unbind(struct ttm_tt *ttm) { int ret; diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index a5183da3ef92..52fb709568fc 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -41,6 +41,7 @@ #include <linux/fs.h> #include <linux/spi...

For this v2 I have fixed the patches that are non-controversial (all Lucas' :)) and am resubmitting them in the hope that they will get merged. This will just leave the issue of Nouveau system-memory buffers mapping to be solved. This issue is quite complex, so let me summarize the situation and the data I have at hand. ARM caching is like a quantum world where Murphy's law constantly

https://bugs.freedesktop.org/show_bug.cgi?id=111642 Bug ID: 111642 Summary: NV43 GeForce 6600 Nouveau is not stable on legacy hardware Product: xorg Version: unspecified Hardware: Other OS: All Status: NEW Severity: not set Priority: not set Component: Driver/nouveau

This small series introduces TTM helper functions as well as Nouveau hooks that are needed to ensure buffer coherency on ARM. Most of this series is a forward-port of some patches Lucas Stach sent last year and that are also needed for Nouveau GK20A support: http://lists.freedesktop.org/archives/nouveau/2013-August/014026.html Another patch takes care of flushing the CPU write-buffer when

This is the first set of patches to make Nouveau work on Tegra. Those are only the obvious correctness fixes, a lot of optimization work remains to be done, but at least it's enough to get accel working and let the machine survive a piglit run. A new BO flag is introduced to allow userspace to hint the kernel about possible optimizations. Lucas Stach (6): drm/ttm: recognize ARM arch in