kernel/linux.git/drivers/gpu/drm/lima, branch v5.2.16

drm/lima: fix lima_gem_wait() return value

2019-09-19T07:10:56+00:00

commit 21670bd78a25001cf8ef2679b378c73fb73b904f upstream. drm_gem_reservation_object_wait() returns 0 if it succeeds and -ETIME if it timeouts, but lima driver assumed that 0 is error. Cc: stable@vger.kernel.org Fixes: a1d2a6339961e ("drm/lima: driver for ARM Mali4xx GPUs") Signed-off-by: Vasily Khoruzhick Signed-off-by: Qiang Yu Link: https://patchwork.freedesktop.org/patch/msgid/20190908024800.23229-1-anarsoul@gmail.com Signed-off-by: Greg Kroah-Hartman

drm/lima: handle shared irq case for lima_pp_bcast_irq_handler

2019-07-31T05:24:28+00:00

[ Upstream commit 409c53f07a81f8db122c461f3255c6f43558c881 ] On Hikey board all lima ip blocks are shared with one irq. This patch avoids a NULL ptr deref crash on this platform on startup. Tested with Weston and kmscube. Signed-off-by: Peter Griffin Cc: Rob Herring Cc: Daniel Vetter Cc: Qiang Yu Signed-off-by: Qiang Yu Link: https://patchwork.freedesktop.org/patch/msgid/1555662781-22570-7-git-send-email-peter.griffin@linaro.org Signed-off-by: Sasha Levin

drm/lima: Make lima_sched_ops static

2019-04-17T12:56:40+00:00

Fix sparse warning: drivers/gpu/drm/lima/lima_sched.c:356:36: warning: symbol 'lima_sched_ops' was not declared. Should it be static? Fixes: a1d2a6339961 ("drm/lima: driver for ARM Mali4xx GPUs") Reported-by: Hulk Robot Signed-off-by: YueHaibing Signed-off-by: Qiang Yu Link: https://patchwork.freedesktop.org/patch/msgid/20190416144353.34024-1-yuehaibing@huawei.com

drm/lima: Use the drm_gem_fence_array_add helpers for our deps.

2019-04-16T22:53:48+00:00

It's a pretty direct port of what I did for v3d. Signed-off-by: Eric Anholt Link: https://patchwork.freedesktop.org/patch/msgid/20190401222635.25013-8-eric@anholt.net Reviewed-and-tested-by: Qiang Yu

Merge drm/drm-next into drm-misc-next

2019-04-10T19:50:49+00:00

Finally have a reason for a backmerge other than "it's been a while"! Backmerging drm-next to -misc-next to facilitate Rob Herring's work on Panfrost. Signed-off-by: Sean Paul

drm/lima: include used header file explicitly

2019-04-09T11:05:59+00:00

To prevent build fail on some platform which does not have it in the include file chain. Reviewed-by: Neil Armstrong Suggested-by: Randy Dunlap Fixes: a1d2a6339961 ("drm/lima: driver for ARM Mali4xx GPUs") Signed-off-by: Qiang Yu Link: https://patchwork.freedesktop.org/patch/msgid/20190409003617.4470-2-yuq825@gmail.com

drm/lima: add missing Kconfig dependency

2019-04-09T11:04:50+00:00

Current implementation does not support MMU-less plarforms. Suggested-by: Randy Dunlap Reviewed-by: Neil Armstrong Fixes: a1d2a6339961 ("drm/lima: driver for ARM Mali4xx GPUs") Signed-off-by: Qiang Yu Link: https://patchwork.freedesktop.org/patch/msgid/20190409003617.4470-1-yuq825@gmail.com

Merge tag 'drm-misc-next-2019-04-04' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

2019-04-05T01:38:02+00:00

drm-misc-next for 5.2: UAPI Changes: -syncobj: Add TIMELINE_WAIT|QUERY|TRANSFER|TIMELINE_SIGNAL ioctls (Chunming) -Clarify that 1.0 can be represented by drm_color_lut (Daniel) Cross-subsystem Changes: -dt-bindings: Add binding for rk3066 hdmi (Johan) -dt-bindings: Add binding for Feiyang FY07024DI26A30-D panel (Jagan) -dt-bindings: Add Rocktech vendor prefix and jh057n00900 panel bindings (Guido) -MAINTAINERS: Add lima and ASPEED entries (Joel & Qiang) Core Changes: -memory: use dma_alloc_coherent when mem encryption is active (Christian) -dma_buf: add support for a dma_fence chain (Christian) -shmem_gem: fix off-by-one bug in new shmem gem helpers (Dan) Driver Changes: -rockchip: Add support for rk3066 hdmi (Johan) -ASPEED: Add driver supporting ASPEED BMC display controller to drm (Joel) -lima: Add driver supporting Arm Mali4xx gpus to drm (Qiang) -vc4/v3d: Various cleanups and improved error handling (Eric) -panel: Add support for Feiyang FY07024DI26A30-D MIPI-DSI panel (Jagan) -panel: Add support for Rocktech jh057n00900 MIPI-DSI panel (Guido) Cc: Johan Jonker Cc: Christian König Cc: Chunming Zhou Cc: Dan Carpenter Cc: Eric Anholt Cc: Qiang Yu Cc: Daniel Vetter Cc: Jagan Teki Cc: Guido Günther Cc: Joel Stanley [airlied: fixed XA limit build breakage, Rodrigo also submitted the same patch, but I squashed it in the merge.] Signed-off-by: Dave Airlie From: Sean Paul Link: https://patchwork.freedesktop.org/patch/msgid/20190404201016.GA139524@art_vandelay

drm/lima: driver for ARM Mali4xx GPUs

2019-04-01T17:45:20+00:00

- Mali 4xx GPUs have two kinds of processors GP and PP. GP is for OpenGL vertex shader processing and PP is for fragment shader processing. Each processor has its own MMU so prcessors work in virtual address space. - There's only one GP but multiple PP (max 4 for mali 400 and 8 for mali 450) in the same mali 4xx GPU. All PPs are grouped togather to handle a single fragment shader task divided by FB output tiled pixels. Mali 400 user space driver is responsible for assign target tiled pixels to each PP, but mali 450 has a HW module called DLBU to dynamically balance each PP's load. - User space driver allocate buffer object and map into GPU virtual address space, upload command stream and draw data with CPU mmap of the buffer object, then submit task to GP/PP with a register frame indicating where is the command stream and misc settings. - There's no command stream validation/relocation due to each user process has its own GPU virtual address space. GP/PP's MMU switch virtual address space before running two tasks from different user process. Error or evil user space code just get MMU fault or GP/PP error IRQ, then the HW/SW will be recovered. - Use GEM+shmem for MM. Currently just alloc and pin memory when gem object creation. GPU vm map of the buffer is also done in the alloc stage in kernel space. We may delay the memory allocation and real GPU vm map to command submission stage in the furture as improvement. - Use drm_sched for GPU task schedule. Each OpenGL context should have a lima context object in the kernel to distinguish tasks from different user. drm_sched gets task from each lima context in a fair way. mesa driver can be found here before upstreamed: https://gitlab.freedesktop.org/lima/mesa v8: - add comments for in_sync - fix ctx free miss mutex unlock v7: - remove lima_fence_ops with default value - move fence slab create to device probe - check pad ioctl args to be zero - add comments for user/kernel interface v6: - fix comments by checkpatch.pl v5: - export gp/pp version to userspace - rebase on drm-misc-next v4: - use get param interface to get info - separate context create/free ioctl - remove unused max sched task param - update copyright time - use xarray instead of idr - stop using drmP.h v3: - fix comments from kbuild robot - restrict supported arch to tested ones v2: - fix syscall argument check - fix job finish fence leak since kernel 5.0 - use drm syncobj to replace native fence - move buffer object GPU va map into kernel - reserve syscall argument space for future info - remove kernel gem modifier - switch TTM back to GEM+shmem MM - use time based io poll - use whole register name - adopt gem reservation obj integration - use drm_timeout_abs_to_jiffies Cc: Eric Anholt Cc: Rob Herring Cc: Christian König Cc: Daniel Vetter Cc: Alex Deucher Cc: Sam Ravnborg Cc: Rob Clark Cc: Dave Airlie Signed-off-by: Andreas Baierl Signed-off-by: Erico Nunes Signed-off-by: Heiko Stuebner Signed-off-by: Marek Vasut Signed-off-by: Neil Armstrong Signed-off-by: Simon Shields Signed-off-by: Vasily Khoruzhick Signed-off-by: Qiang Yu Reviewed-by: Eric Anholt Reviewed-by: Rob Herring Signed-off-by: Eric Anholt Link: https://patchwork.freedesktop.org/patch/291200/