diff options
| author | Krishna Reddy <vdumpa@nvidia.com> | 2011-08-30 10:15:44 -0700 |
|---|---|---|
| committer | Varun Colbert <vcolbert@nvidia.com> | 2011-09-20 17:06:51 -0700 |
| commit | e4862709dd7fb9799072576569fd532e0a597f31 (patch) | |
| tree | f8aeaf1d2e505d1975a90d682f05ae52a27d3600 /drivers | |
| parent | 30b7915965ae4ea1a65a43f4d2545a8f3ac861f3 (diff) | |
video: tegra: nvmap: Set page attributes as per request.
After allocating pages, Set page attributes as per mem type
requested.
Change-Id: I972ec3613e529b64ba7d1d417c06c235fe1d3633
Reviewed-on: http://git-master/r/49882
Reviewed-by: Varun Colbert <vcolbert@nvidia.com>
Tested-by: Varun Colbert <vcolbert@nvidia.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/tegra/nvmap/nvmap_handle.c | 31 | ||||
| -rw-r--r-- | drivers/video/tegra/nvmap/nvmap_ioctl.c | 7 |
2 files changed, 24 insertions, 14 deletions
diff --git a/drivers/video/tegra/nvmap/nvmap_handle.c b/drivers/video/tegra/nvmap/nvmap_handle.c index d06c948f6bd5..4ab419f5bbf7 100644 --- a/drivers/video/tegra/nvmap/nvmap_handle.c +++ b/drivers/video/tegra/nvmap/nvmap_handle.c @@ -105,6 +105,12 @@ void _nvmap_handle_free(struct nvmap_handle *h) nvmap_mru_remove(nvmap_get_share_from_dev(dev), h); + // Restore page attributes. + if (h->flags == NVMAP_HANDLE_WRITE_COMBINE || + h->flags == NVMAP_HANDLE_UNCACHEABLE || + h->flags == NVMAP_HANDLE_INNER_CACHEABLE) + set_pages_array_wb(h->pgalloc.pages, nr_page); + if (h->pgalloc.area) tegra_iovmm_free_vm(h->pgalloc.area); @@ -147,7 +153,6 @@ static int handle_page_alloc(struct nvmap_client *client, pgprot_t prot; unsigned int i = 0; struct page **pages; - bool flush_inner = true; unsigned long base; pages = altalloc(nr_page * sizeof(*pages)); @@ -190,18 +195,26 @@ static int handle_page_alloc(struct nvmap_client *client, #endif } - /* Flush the cache for allocated pages*/ - if (size >= FLUSH_CLEAN_BY_SET_WAY_THRESHOLD) { - inner_flush_cache_all(); - flush_inner = false; - } + // Update the pages mapping in kernel page table. + if (h->flags == NVMAP_HANDLE_WRITE_COMBINE) + set_pages_array_wc(pages, nr_page); + else if (h->flags == NVMAP_HANDLE_UNCACHEABLE) + set_pages_array_uc(pages, nr_page); + else if (h->flags == NVMAP_HANDLE_INNER_CACHEABLE) + set_pages_array_iwb(pages, nr_page); + else + goto skip_cache_flush; + + /* Flush the cache for allocated high mem pages only */ for (i = 0; i < nr_page; i++) { - if (flush_inner) + if (PageHighMem(pages[i])) { __flush_dcache_page(page_mapping(pages[i]), pages[i]); - base = page_to_phys(pages[i]); - outer_flush_range(base, base + PAGE_SIZE); + base = page_to_phys(pages[i]); + outer_flush_range(base, base + PAGE_SIZE); + } } +skip_cache_flush: h->size = size; h->pgalloc.pages = pages; h->pgalloc.contig = contiguous; diff --git a/drivers/video/tegra/nvmap/nvmap_ioctl.c b/drivers/video/tegra/nvmap/nvmap_ioctl.c index 44cd7b72fe27..26ff0818b124 100644 --- a/drivers/video/tegra/nvmap/nvmap_ioctl.c +++ b/drivers/video/tegra/nvmap/nvmap_ioctl.c @@ -582,11 +582,8 @@ static int cache_maint(struct nvmap_client *client, struct nvmap_handle *h, } wmb(); -#if defined(CONFIG_ARCH_TEGRA_2x_SOC) - if (h->flags == NVMAP_HANDLE_WRITE_COMBINE) - goto out; -#endif - if (h->flags == NVMAP_HANDLE_UNCACHEABLE || start == end) + if (h->flags == NVMAP_HANDLE_UNCACHEABLE || + h->flags == NVMAP_HANDLE_WRITE_COMBINE || start == end) goto out; if (fast_cache_maint(client, h, start, end, op)) |