search for: ttm_tt_swapout

https://bugs.freedesktop.org/show_bug.cgi?id=28763 Summary: Kernel Oops when displaying a large image Product: xorg Version: unspecified Platform: Other OS/Version: All Status: NEW Severity: normal Priority: medium Component: Driver/nouveau AssignedTo: nouveau at lists.freedesktop.org

...snd_pcm ivtv drm snd_timer snd_page_alloc snd_pt2258 snd_i2c cx2341x agpgart ehci_hcd i2c_algo_bit i2c_nforce2 tveeprom snd soundcore ohci_hcd Pid: 1501, comm: ttm_swap Not tainted 2.6.32-00848-gedc4439-dirty #172 System Product Name RIP: 0010:[<ffffffffa017c3fb>] [<ffffffffa017c3fb>] ttm_tt_swapout+0x135/0x1db [ttm] RSP: 0000:ffff88003749fce0 EFLAGS: 00010282 RAX: 0000000000000040 RBX: 0005d12492492000 RCX: 0000000000000400 RDX: 00000000ffffffff RSI: ffff8800308db000 RDI: 0005d12492492000 RBP: ffff88003749fd30 R08: 0000000000be8bfa R09: ffff88003749fb30 R10: 000000000000000f R11: 00000000000...

...644 --- 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/spinlock.h> #include <linux/reservation.h> +#include <linux/device.h> struct ttm_backend_func { /** @@ -690,6 +691,33 @@ extern int ttm_tt_swapout(struct ttm_tt *ttm, */ extern void ttm_tt_unpopulate(struct ttm_tt *ttm); +/** + * ttm_dma_tt_cache_sync_for_device: + * + * @ttm A struct ttm_tt of the type returned by ttm_dma_tt_init. + * @dev A struct device representing the device to which to sync. + * + * This function will flush the CPU...

...644 --- 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/spinlock.h> #include <linux/reservation.h> +#include <linux/device.h> struct ttm_backend_func { /** @@ -690,6 +691,33 @@ extern int ttm_tt_swapout(struct ttm_tt *ttm, */ extern void ttm_tt_unpopulate(struct ttm_tt *ttm); +/** + * ttm_dma_tt_cache_sync_for_device: + * + * @ttm A struct ttm_tt of the type returned by ttm_dma_tt_init. + * @dev A struct device representing the device to which to sync. + * + * This function will flush the CPU...

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

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