user/sven/linux.git/drivers/misc/fastrpc.c, branch v5.7

Merge tag 'drm-misc-next-2019-12-16' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

2019-12-17T12:57:54Z

drm-misc-next for v5.6: UAPI Changes: - Add support for DMA-BUF HEAPS. Cross-subsystem Changes: - mipi dsi definition updates, pulled into drm-intel as well. - Add lockdep annotations for dma_resv vs mmap_sem and fs_reclaim. - Remove support for dma-buf kmap/kunmap. - Constify fb_ops in all fbdev drivers, including drm drivers and drm-core, and media as well. Core Changes: - Small cleanups to ttm. - Fix SCDC definition. - Assorted cleanups to core. - Add todo to remove load/unload hooks, and use generic fbdev emulation. - Assorted documentation updates. - Use blocking ww lock in ttm fault handler. - Remove drm_fb_helper_fbdev_setup/teardown. - Warning fixes with W=1 for atomic. - Use drm_debug_enabled() instead of drm_debug flag testing in various drivers. - Fallback to nontiled mode in fbdev emulation when not all tiles are present. (Later on reverted) - Various kconfig indentation fixes in core and drivers. - Fix freeing transactions in dp-mst correctly. - Sean Paul is steping down as core maintainer. :-( - Add lockdep annotations for atomic locks vs dma-resv. - Prevent use-after-free for a bad job in drm_scheduler. - Fill out all block sizes in the P01x and P210 definitions. - Avoid division by zero in drm/rect, and fix bounds. - Add drm/rect selftests. - Add aspect ratio and alternate clocks for HDMI 4k modes. - Add todo for drm_framebuffer_funcs and fb_create cleanup. - Drop DRM_AUTH for prime import/export ioctls. - Clear DP-MST payload id tables downstream when initializating. - Fix for DSC throughput definition. - Add extra FEC definitions. - Fix fake offset in drm_gem_object_funs.mmap. - Stop using encoder->bridge in core directly - Handle bridge chaining slightly better. - Add backlight support to drm/panel, and use it in many panel drivers. - Increase max number of y420 modes from 128 to 256, as preparation to add the new modes. Driver Changes: - Small fixes all over. - Fix documentation in vkms. - Fix mmap_sem vs dma_resv in nouveau. - Small cleanup in komeda. - Add page flip support in gma500 for psb/cdv. - Add ddc symlink in the connector sysfs directory for many drivers. - Add support for analogic an6345, and fix small bugs in it. - Add atomic modesetting support to ast. - Fix radeon fault handler VMA race. - Switch udl to use generic shmem helpers. - Unconditional vblank handling for mcde. - Miscellaneous fixes to mcde. - Tweak debug output from komeda using debugfs. - Add gamma and color transform support to komeda for DOU-IPS. - Add support for sony acx424AKP panel. - Various small cleanups to gma500. - Use generic fbdev emulation in udl, and replace udl_framebuffer with generic implementation. - Add support for Logic PD Type 28 panel. - Use drm_panel_* wrapper functions in exynos/tegra/msm. - Add devicetree bindings for generic DSI panels. - Don't include drm_pci.h directly in many drivers. - Add support for begin/end_cpu_access in udmabuf. - Stop using drm_get_pci_dev in gma500 and mga200. - Fixes to UDL damage handling, and use dma_buf_begin/end_cpu_access. - Add devfreq thermal support to panfrost. - Fix hotplug with daisy chained monitors by removing VCPI when disabling topology manager. - meson: Add support for OSD1 plane AFBC commit. - Stop displaying garbage when toggling ast primary plane on/off. - More cleanups and fixes to UDL. - Add D32 suport to komeda. - Remove globle copy of drm_dev in gma500. - Add support for Boe Himax8279d MIPI-DSI LCD panel. - Add support for ingenic JZ4770 panel. - Small null pointer deference fix in ingenic. - Remove support for the special tfp420 driver, as there is a generic way to do it. Signed-off-by: Daniel Vetter From: Maarten Lankhorst Link: https://patchwork.freedesktop.org/patch/msgid/ba73535a-9334-5302-2e1f-5208bd7390bd@linux.intel.com

drm/tee_shm: Drop dma_buf_k(unmap) support

2019-11-25T21:36:25Z

There's no in-tree users anymore. Acked-by: Greg Kroah-Hartman Acked-by: Jens Wiklander Acked-by: Sumit Semwal Signed-off-by: Daniel Vetter Cc: Arnd Bergmann Cc: Greg Kroah-Hartman Cc: Jens Wiklander Cc: tee-dev@lists.linaro.org Link: https://patchwork.freedesktop.org/patch/msgid/20191118103536.17675-13-daniel.vetter@ffwll.ch

Merge 5.4-rc3 into char-misc-next

2019-10-14T05:36:49Z

We need the char/misc fixes in here as well. Signed-off-by: Greg Kroah-Hartman

misc: fastrpc: revert max init file size back to 2MB

2019-10-10T13:28:12Z

With the integration of the mmap/unmap functionality, it is no longer necessary to allow large memory allocations upfront since they can be handled during runtime. Tested on QCS404 with CDSP Neural Processing test suite. Signed-off-by: Jorge Ramirez-Ortiz Reviewed-by: Srinivas Kandagatla Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20191009144123.24583-6-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

misc: fastrpc: handle interrupted contexts

2019-10-10T13:28:12Z

Buffers owned by a context that has been interrupted either by a signal or a timeout might still be being accessed by the DSP. delegate returning the associated memory to a later time when the device is released. Signed-off-by: Jorge Ramirez-Ortiz Reviewed-by: Srinivas Kandagatla Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20191009144123.24583-5-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

misc: fastrpc: do not interrupt kernel calls

2019-10-10T13:28:11Z

the DSP firmware requires some calls to be held until processing has completed: this is to guarantee that memory continues to be accessible. Nevertheless, the fastrpc driver chooses not support the case were requests need to be held for unbounded amounts of time. If such a use-case becomes necessary, this timeout will need to be revisited. Signed-off-by: Jorge Ramirez-Ortiz Reviewed-by: Srinivas Kandagatla Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20191009144123.24583-4-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

misc: fastrpc: fix memory leak from miscdev->name

2019-10-10T13:28:11Z

Fix a memory leak in miscdev->name by using devm_variant Orignally reported by kmemleak: [] kmemleak_alloc+0x50/0x84 [] __kmalloc_track_caller+0xe8/0x168 [] kvasprintf+0x78/0x100 [] kasprintf+0x50/0x74 [] fastrpc_rpmsg_probe+0xd8/0x20c [] rpmsg_dev_probe+0xa8/0x148 [] really_probe+0x208/0x248 [] driver_probe_device+0x98/0xc0 [] __device_attach_driver+0x9c/0xac [] bus_for_each_drv+0x60/0x8c [] __device_attach+0x8c/0x100 [] device_initial_probe+0x20/0x28 [] bus_probe_device+0x34/0x7c [] device_add+0x420/0x498 [] device_register+0x24/0x2c Signed-off-by: Srinivas Kandagatla Reviewed-by: Bjorn Andersson Link: https://lore.kernel.org/r/20191009144123.24583-3-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

misc: fastrpc: add mmap/unmap support

2019-10-10T13:28:10Z

Support the allocation/deallocation of buffers mapped to the DSP. When the memory mapped to the DSP at process creation is not enough, the fastrpc library can extend it at runtime. This avoids having to do large preallocations by default. Signed-off-by: Jorge Ramirez-Ortiz Reviewed-by: Srinivas Kandagatla Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20191009144123.24583-2-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

misc: fastrpc: prevent memory leak in fastrpc_dma_buf_attach

2019-10-04T16:22:14Z

In fastrpc_dma_buf_attach if dma_get_sgtable fails the allocated memory for a should be released. Signed-off-by: Navid Emamdoost Link: https://lore.kernel.org/r/20190925152742.16258-1-navid.emamdoost@gmail.com Signed-off-by: Greg Kroah-Hartman

misc: fastrpc: free dma buf scatter list

2019-09-04T11:35:11Z

dma buf scatter list is never freed, free it! Orignally detected by kmemleak: backtrace: [] kmemleak_alloc+0x50/0x84 [] sg_kmalloc+0x38/0x60 [] __sg_alloc_table+0x60/0x110 [] sg_alloc_table+0x28/0x58 [] __sg_alloc_table_from_pages+0xc0/0x1ac [] sg_alloc_table_from_pages+0x14/0x1c [] __iommu_get_sgtable+0x5c/0x8c [] fastrpc_dma_buf_attach+0x84/0xf8 [] dma_buf_attach+0x70/0xc8 [] fastrpc_map_create+0xf8/0x1e8 [] fastrpc_device_ioctl+0x508/0x900 [] compat_SyS_ioctl+0x128/0x200 [] el0_svc_naked+0x34/0x38 [] 0xffffffffffffffff Reported-by: Mayank Chopra Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20190829092926.12037-6-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman