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path: root/drivers/gpu/ipu-v3/ipu-cpmem.c
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2019-01-16media: gpu: ipu-v3: Add planar support to interlaced scanSteve Longerbeam1-2/+24
To support interlaced scan with planar formats, cpmem SLUV must be programmed with the correct chroma line stride. For full and partial planar 4:2:2 (YUV422P, NV16), chroma line stride must be doubled. For full and partial planar 4:2:0 (YUV420, YVU420, NV12), chroma line stride must _not_ be doubled, since a single chroma line is shared by two luma lines. Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-05gpu: ipu-v3: Add chroma plane offset overrides to ipu_cpmem_set_image()Steve Longerbeam1-19/+27
Allow the caller of ipu_cpmem_set_image() to override the latters calculation of the chroma plane offsets, by adding override U/V plane offsets to 'struct ipu_image'. Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Tested-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2018-11-05gpu: ipu-cpmem: add WARN_ON_ONCE() for unaligned dma buffersSteve Longerbeam1-0/+6
Add a WARN_ON_ONCE() if either the Y/packed buffer, or the U/V offsets, are not aligned on 8-byte boundaries. This will catch alignment bugs in DRM, V4L2. Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Tested-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2018-08-10Merge tag 'imx-drm-fixes-2018-08-03' of ↵Dave Airlie1-3/+3
git://git.pengutronix.de/git/pza/linux into drm-next drm/imx: ipu-v3 plane offset and IPU id fixes - Fix U/V plane offsets for odd vertical offsets. Due to wrong operator order, the y offset was not rounded down properly for vertically chroma subsampled planar formats. - Fix IPU id number for boards that don't have an OF alias for their single IPU in the device tree. This is necessary to support imx-media on i.MX51 and i.MX53 SoCs. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Philipp Zabel <p.zabel@pengutronix.de> Link: https://patchwork.freedesktop.org/patch/msgid/1533552680.4204.14.camel@pengutronix.de
2018-08-02gpu: ipu-v3: Fix U/V offset macros for planar 4:2:0Steve Longerbeam1-3/+3
The U and V offset macros for planar 4:2:0 (U_OFFSET, V_OFFSET, and UV_OFFSET), are not correct. The height component to the offset was calculated as: (pix->width * y / 4) But this does not produce correct offsets for odd values of y (luma line #). The luma line # must be decimated by two to produce the correct U/V line #, so the correct formula is: (pix->width * (y / 2) / 2) Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2018-08-02gpu: ipu-v3: add support for XRGB32 and XBGR32 V4L2 pixel formatsPhilipp Zabel1-0/+8
These should be used instead of the ill-defined deprecated RGB32 and BGR32 V4L2 pixel formats. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2018-07-16gpu: ipu-v3: Allow negative offsets for interlaced scanningPhilipp Zabel1-2/+13
The IPU also supports interlaced buffers that start with the bottom field. To achieve this, the the base address EBA has to be increased by a stride length and the interlace offset ILO has to be set to the negative stride. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
2018-02-19gpu: ipu-cpmem: add 16-bit grayscale support to ipu_cpmem_set_imagePhilipp Zabel1-0/+1
Add the missing offset calculation for 16-bit grayscale images. Since the IPU only supports capturing greyscale in raw passthrough mode, it is the same as 16-bit bayer formats. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2018-02-16gpu: ipu-cpmem: add 8-bit grayscale support to ipu_cpmem_set_imagePhilipp Zabel1-0/+1
Add the missing offset calculation for grayscale images. Since the IPU only supports capturing greyscale in raw passthrough mode, it is the same as 8-bit bayer formats. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2017-12-19gpu: ipu-v3: allow to build with COMPILE_TESTPhilipp Zabel1-0/+1
Add missing include <linux/sizes.h> in ipu-cpmem and ipu-ic, select BITREVERSE for ipu-cpmem and GENERIC_ALLOCATOR for ipu-pre, and allow to build if COMPILE_TEST is enabled. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2017-06-08gpu: ipu-v3: Add support for double read/write reductionPhilipp Zabel1-0/+6
Allow to skip writing odd chroma rows by setting the RDRW bit for 4:2:0 chroma subsampled formats for any IDMAC write channel. This also allows to skip reading odd rows for the VDIC read channel. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2017-03-15gpu: ipu-v3: add support for separate alpha channelsPhilipp Zabel1-0/+57
The IPUv3 can read 8-bit alpha values from a separate IDMAC channel driven by the Alpha Transparency Controller (ATC) for the graphics IDMAC channels. This allows to reduce memory bandwidth via a conditional read mechanism or to support planar YUV formats with alpha transparency. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2017-03-15gpu: ipu-cpmem: add bayer formats to ipu_cpmem_set_imagePhilipp Zabel1-0/+13
The IPU does not natively understand bayer formats, but it can pass them through unchanged. Add support for setting the image base address and cropping offset to ipu_cpmem_set_image. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2017-03-15gpu: ipu-cpmem: set image base address even for incorrect formatsPhilipp Zabel1-2/+6
Otherwise, if the image base address is kept at zero, and if the user ignores the error return value, the IPU may be configured to write into the dma-apbh@00110000 region for large frames, which will lock up the system. Reported-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-10-20gpu: ipu-v3: add YUV 4:4:4 supportPhilipp Zabel1-0/+7
The IDMAC does support reading and writing DRM_FORMAT_YUV444 and DRM_FORMAT_YVU444. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Liu Ying <gnuiyl@gmail.com>
2016-10-20gpu: ipu-cpmem: remove unused ipu_cpmem_set_yuv_planar functionPhilipp Zabel1-36/+0
ipu_cpmem_set_yuv_planar_full is only used directly, remove the wrapper. Suggested-by: Liu Ying <gnuiyl@gmail.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Liu Ying <gnuiyl@gmail.com>
2016-08-08gpu: ipu-cpmem: Add ipu_cpmem_get_burstsize()Steve Longerbeam1-0/+6
Adds ipu_cpmem_get_burstsize(). Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-08gpu: ipu-cpmem: Add ipu_cpmem_set_uv_offset()Steve Longerbeam1-0/+7
Adds ipu_cpmem_set_uv_offset(), to set planar U/V offsets. Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-03-31gpu: ipu-cpmem: modify ipu_cpmem_set_yuv_planar_full for better controlPhilipp Zabel1-43/+36
Let ipu_cpmem_set_yuv_planar_full take a DRM_FORMAT instead of a V4L2_PIXFMT and allow better control over U/V stride, U offset and V offset settings in the CPMEM. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2015-12-04drm, ipu-v3: use https://linuxtv.org for LinuxTV URLMauro Carvalho Chehab1-1/+1
While https was always supported on linuxtv.org, only in Dec 3 2015 the website is using valid certificates. As we're planning to drop pure http support on some future, change the references at DRM include and at the ipu-v3 driver to point to the https://linuxtv.org URL instead. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-30gpu: ipu-v3: add support for ARGB4444 16-bit color formatLucas Stach1-0/+11
This patch adds support for the ARGB4444 color format. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2015-10-30gpu: ipu-v3: add support for RGBX8888 and RGBA8888 pixel formatsPhilipp Zabel1-4/+28
This patch adds support for the RGBA8888, RGBX8888, BGRA8888, and BGRX8888 in-memory formats. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2015-10-30gpu: ipu-v3: add support for 15-bit RGB with 1-bit alpha formatsPhilipp Zabel1-0/+44
This patch adds support for ARGB1555, ABGR1555, RGBA5551, and BGRA5551 in-memory formats. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2014-09-02gpu: ipu-cpmem: Add ipu_cpmem_dump()Steve Longerbeam1-0/+63
Adds ipu_cpmem_dump() which dumps a channel's cpmem to debug. Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2014-09-02gpu: ipu-v3: Add more planar formats supportSteve Longerbeam1-18/+99
Adds support for the following planar and partial-planar formats: YUV422 NV12 NV16 Signed-off-by: Dmitry Eremin-Solenikov <dmitry_eremin@mentor.com> Signed-off-by: Mohsin Kazmi <mohsin_kazmi@mentor.com> Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com> Unified base offset and Y plane offset into a single variable, moved all ipu_cpmem_set_buffer calls to a single location. Removed NV21 and NV61 for now. The IDMAC doesn't understand U/V order for chroma interleaved formats, so we'd need to work around this by implenting U/V switching via the CSC unit. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2014-09-02gpu: ipu-cpmem: Add second buffer support to ipu_cpmem_set_image()Steve Longerbeam1-16/+16
Add a second buffer physaddr to struct ipu_image, for double-buffering support. Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2014-09-02gpu: ipu-cpmem: Add ipu_cpmem_set_rotation()Steve Longerbeam1-0/+10
Adds ipu_cpmem_set_rotation(). Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2014-09-02gpu: ipu-cpmem: Add ipu_cpmem_set_axi_id()Steve Longerbeam1-0/+7
Adds ipu_cpmem_set_axi_id() to set which AXI bus master the channel will use to transfer data onto AXI bus. Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2014-09-02gpu: ipu-cpmem: Add ipu_cpmem_set_block_mode()Steve Longerbeam1-0/+6
Adds ipu_cpmem_set_block_mode(). Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2014-08-18gpu: ipu-v3: Add ipu-cpmem unitSteve Longerbeam1-0/+597
Move channel parameter memory setup functions and macros into a new submodule ipu-cpmem. In the process, cleanup arguments to the functions to take a channel pointer instead of a pointer into cpmem for that channel. That allows the structure of the parameter memory to be private to ipu-cpmem.c. Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>