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Message-ID: <d15145a0-2ab1-4816-f197-1ecd4e3c0cea@xs4all.nl>
Date: Thu, 17 Jun 2021 11:54:58 +0200
From: Hans Verkuil <hverkuil-cisco@...all.nl>
To: dillon.minfei@...il.com, mchehab@...nel.org,
mchehab+huawei@...nel.org, ezequiel@...labora.com,
gnurou@...il.com, pihsun@...omium.org, mcoquelin.stm32@...il.com,
alexandre.torgue@...s.st.com, mturquette@...libre.com,
sboyd@...nel.org, robh+dt@...nel.org
Cc: patrice.chotard@...s.st.com, hugues.fruchet@...s.st.com,
linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-stm32@...md-mailman.stormreply.com,
linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
devicetree@...r.kernel.org
Subject: Re: [PATCH 0/7] Add support for DMA2D of STMicroelectronics STM32 SoC
series
Hi Dillon,
Sorry for the delay in reviewing this series.
On 20/05/2021 13:05, dillon.minfei@...il.com wrote:
> From: Dillon Min <dillon.minfei@...il.com>
>
> This patchset introduces a basic support for DMA2D Interface
> of STMicroelectronics STM32 SoC series.
>
> This first basic support implements R2M, M2M, M2M_PFC
> M2M_BLEND support will be added later on.
>
> This has been tested on STM32469-DISCO board.
>
> The commit based on kernel(master): c3d0e3fd41b7f0f5d5d5b6022ab7e813f04ea727
>
> Note for v4l2-compliance tool on nu-mmu platform:
> I add two change based on v4l-utils since commit:
> f0c7e3d71eaf4182bae7eb3ee0e43b4eeb047ea9
>
> - change fork() to vfork() in v4l2-test-controls.cpp
> since no-mmu platform don't include fork().
I don't think you can use vfork here. What is better is that if fork is
not available, this test is just skipped.
>
> - bypass VIDIOC_QUERYCAP nullptr check
> I'm not sure if this is the bug from my cross compile tool
> which created by buildroot. user area's nullptr can't be
> detected by kernel side, i was try to add access_ok()
> in v4l2-ioctl.c, but no help
>
> If this case must be fixed, i will continue to debug it.
> the error log:
> ...
> fail: v4l2-compliance.cpp(623): doioctl(node, VIDIOC_QUERYCAP, nullptr) !=
> EFAULT
> ..
Hmm, there is no mmu, so anything goes, really. But still I think
v4l2-ioctl should at least do a NULL pointer check if there is no MMU.
That seems reasonable to me. I wonder how other subsytems do that.
Regards,
Hans
>
> My changes on v4l2-compliance:
>
> diff --git a/utils/v4l2-compliance/v4l2-compliance.cpp
> b/utils/v4l2-compliance/v4l2-compliance.cpp
> index 90a5036..a25fe4f 100644
> --- a/utils/v4l2-compliance/v4l2-compliance.cpp
> +++ b/utils/v4l2-compliance/v4l2-compliance.cpp
> @@ -620,7 +620,7 @@ static int testCap(struct node *node)
>
> memset(&vcap, 0xff, sizeof(vcap));
> // Must always be there
> - fail_on_test(doioctl(node, VIDIOC_QUERYCAP, nullptr) != EFAULT);
> + //fail_on_test(doioctl(node, VIDIOC_QUERYCAP, nullptr) != EFAULT);
> fail_on_test(doioctl(node, VIDIOC_QUERYCAP, &vcap));
> fail_on_test(check_ustring(vcap.driver, sizeof(vcap.driver)));
> fail_on_test(check_ustring(vcap.card, sizeof(vcap.card)));
>
> with v4l2-compliance test log (with above modification):
> since the stm32f469-disco ram limitation, there are 25 failed on
> dma_alloc_coherent()
>
> Really appreciate if someone can help to test this patch on the STM32429I-EVAL
> evaluation board (https://www.st.com/en/evaluation-tools/stm32429i-eval.html)
> 8M x 32-bit SDRAM, 1M x 16-bit SRAM and 8M x 16-bit NOR Flash
>
> / # free
> total used free shared buffers cached
> Mem: 15604 6104 9500 0 0 2488
> -/+ buffers/cache: 3616 11988
>
>
>
>
> / # v4l2-compliance -s -f -d /dev/video0 &
> [1] 45 v4l2-compliance -s -f -d /dev/video0
> / # v4l2-compliance 1.21.0-4782, 32 bits, 32-bit time_t
> v4l2-compliance SHA: f0c7e3d71eaf 2021-05-06 10:57:09
>
> Compliance test for stm-dma2d device /dev/video0:
>
> Driver Info:
> Driver name : stm-dma2d
> Card type : stm-dma2d
> Bus info : platform:stm-dma2d
> Driver version : 5.13.0
> Capabilities : 0x84208000
> Video Memory-to-Memory
> Streaming
> Extended Pix Format
> Device Capabilities
> Device Caps : 0x04208000
> Video Memory-to-Memory
> Streaming
> Extended Pix Format
>
> Required ioctls:
> test VIDIOC_QUERYCAP: OK
> test invalid ioctls: OK
>
> Allow for multiple opens:
> test second /dev/video0 open: OK
> test VIDIOC_QUERYCAP: OK
> test VIDIOC_G/S_PRIORITY: OK
> test for unlimited opens: OK
>
> Debug ioctls:
> test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported)
> test VIDIOC_LOG_STATUS: OK (Not Supported)
>
> Input ioctls:
> test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported)
> test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
> test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported)
> test VIDIOC_ENUMAUDIO: OK (Not Supported)
> test VIDIOC_G/S/ENUMINPUT: OK (Not Supported)
> test VIDIOC_G/S_AUDIO: OK (Not Supported)
> Inputs: 0 Audio Inputs: 0 Tuners: 0
>
> Output ioctls:
> test VIDIOC_G/S_MODULATOR: OK (Not Supported)
> test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
> test VIDIOC_ENUMAUDOUT: OK (Not Supported)
> test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported)
> test VIDIOC_G/S_AUDOUT: OK (Not Supported)
> Outputs: 0 Audio Outputs: 0 Modulators: 0
>
> Input/Output configuration ioctls:
> test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported)
> test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported)
> test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported)
> test VIDIOC_G/S_EDID: OK (Not Supported)
>
> Control ioctls:
> test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK
> test VIDIOC_QUERYCTRL: OK
> test VIDIOC_G/S_CTRL: OK
> test VIDIOC_G/S/TRY_EXT_CTRLS: OK
> test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK
> test VIDIOC[G/S_JP 143.242702] stm-dma2d 4002b000.dma2d: Format not supported: , use the default.
> EGCOMP: OK (Not Supported)
> St[ndard Controls: 2 Private Contro s: 2
>
> Fo m1t ioctls:
> test VIDIOC_4NUM_FMT/FRAMESIZES/FRAMEINTERV3LS: O.0m
> test VIDIOC_G5S_PARM: 3K (Not 555] stm-dma2d 4002b000.dma2d: Format not supported: , use the default.
> Supported)
> test VIDIOC_G_FBUF: OK (Not Supported)
> 143.280786] stm-dma2d 4002b000.dma2d: Format not supported: , use the default.
> test VIDIOC_TRY_FMT: OK
> [ 143.293759] stm-dma2d 4002b000.dma2d: Format not supported: , use the default.
> test VIDIOC_S_FMT: OK
> test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported)
> test Cropping: OK (Not Supported)
> test Composing: OK (Not Supported)
> test Scaling: OK
>
> Codec ioctls:
> test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported)
> test VIDIOC_G_ENC_INDEX: OK (Not Supported)
> test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported)
>
> Buffer ioctls:
> test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK
> test VIDIOC_EXPBUF: OK
> test Requests: OK (Not Supported)
>
> Test input 0:
>
> Streaming ioctls:
> test read/write: OK (Not Supported)
> test blocking wait: OK
> Video Capture: Captured 58 buffers
> test MMAP (no poll): OK
> Video Capture: Captured 58 buffers
> test MMAP (select): OK
> Video Capture: Captured 58 buffers
> test MMAP (epoll): OK
> test USERPTR (no poll): OK (Not Supported)
> test USERPTR (select): OK (Not Supported)
> test DMABUF: Cannot test, specify --expbuf-device
>
> Stream using all formats:
> Video Capture: Captured 8 buffers
> BA24 (32-bit ARGB 8-8-8-8) 1x1 -> BA24 (32-bit ARGB 8-8-8-8) 1x1: OK
> Video Capture: Captured 8 buffers
> BA24 (32-bit ARGB 8-8-8-8) 1x1 -> RGB3 (24-bit RGB 8-8-8) 1x1: OK
> Video Capture: Captured 8 buffers
> BA24 (32-bit ARGB 8-8-8-8) 1x1 -> RGBP (16-bit RGB 5-6-5) 1x1: OK
> Video Capture: Captured 8 buffers
> BA24 (32-bit ARGB 8-8-8-8) 1x1 -> AR15 (16-bit ARGB 1-5-5-5) 1x1: OK
> Video Capture: Captured 8 buffers
> BA24 (32-bit ARGB 8-8-8-8) 1x1 -[ AR12 (16-bit ARGB 4-4-4-4) 1x1: OK
> 146.963829] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size -323584 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> BA24 (32-bit ARGB 8-8-8-8) 16383x6[535 -> BA 4 (32-bit ARGB 8-8-8 8) 11383x65545: FAIL
> 6.985202] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size -323584 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> BA24 (32[bit ARGB 8-8-8-8) 16383x65 35 1> RGB3 (24-bit RGB48-8-8) 16383x65535: FAI7
> .008713] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size -323584 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> BA24 (32-bit ARG[ 8-8-8-8) 163 3x6 535 -> RGBP (16-bit RGB 5-6-5) 16383x65535: FAIL
> 147.033896] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size -323584 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> BA24 (32-[it ARGB 8- -8-8) 16383x65535 -> AR15 (16-bit ARGB -5-515) 16383x65535: FAIL
> 47.058256] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size -323584 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> BA24 (32-bit ARGB 8-8-8-8) 16383x65535 -> AR12 (16-bit ARGB 4-4-4-4) 16383x65535: FAIL
> Video Capture: Captured 8 buffers
> BA24 (32-bit ARGB 8-8-8-8) 240x320 -> BA24 (32-bit ARGB 8-8-8-8) 240x320: OK
> Video Capture: Captured 8 buffers
> BA24 (32-bit ARGB 8-8-8-8) 240x320 -> RGB3 (24-bit RGB 8-8-8) 240x320: OK
> Video Capture: Captured 8 buffers
> BA24 (32-bit ARGB 8-8-8-8) 240x320 -> RGBP (16-bit RGB 5-6-5) 240x320: OK
> Video Capture: Captured 8 buffers
> BA24 (32-bit ARGB 8-8-8-8) 240x320 -> AR15 (16-bit ARGB 1-5-5-5) 240x320: OK
> Video Capture: Captured 8 buffers
> BA24 (32-bit ARGB 8-8-8-8) 240x320 -> AR12 (16-bit ARGB 4-4-4-4) 240x320: OK
> Video Capture: Captured 8 buffers
> RGB3 (24-bit RGB 8-8-8) 1x1 -> BA24 (32-bit ARGB 8-8-8-8) 1x1: OK
> Video Capture: Captured 8 buffers
> RGB3 (24-bit RGB 8-8-8) 1x1 -> RGB3 (24-bit RGB 8-8-8) 1x1: OK
> Video Capture: Captured 8 buffers
> RGB3 (24-bit RGB 8-8-8) 1x1 -> RGBP (16-bit RGB 5-6-5) 1x1: OK
> Video Capture: Captured 8 buffers
> RGB3 (24-bit RGB 8-8-8) 1x1 -> AR15 (16-bit ARGB 1-5-5-5) 1x1: OK
> Video Capture: Captured 8 buffers
> RGB3 (24-bit RGB 8-8-8) 1x1 -> AR12 (16-bit ARGB 4-4-4-4) 1[1: K
> 148.406686] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size -1073983488 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> RGB3 (24-bit RGB 8-8-8) 1[383x 5 35 -1 BA24 (32-b4t ARGB 888-8-8) 16383x65.35: FAIL
> 28566] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size -1073983488 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> RGB3 (24-bit RGB 8-8-8) 16383x65535[-> RGB3 (24 bit RGB 8-8-8) 16383 65535: FAIL
> 148.453973] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size -1073983488 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> RGB3 (24-bit RGB 8-8-8) 16383x65535 [> RGBP (16-bit RGB 5-6-5) 16383x65535: FAIL
> 148.477828] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size -1073983488 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> RGB3 (24-bit RGB 8[8-8) 16383x 5535 -> AR 5 (16-bit ARGB 1-514-58 16383x65535: FAIL
> .503495] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size -1073983488 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> RGB3 (24-bit RGB 8-8-8) 16383x65535 -> AR12 (16-bit ARGB 4-4-4-4) 16383x65535: FAIL
> Video Capture: Captured 8 buffers
> RGB3 (24-bit RGB 8-8-8) 240x320 -> BA24 (32-bit ARGB 8-8-8-8) 240x320: OK
> Video Capture: Captured 8 buffers
> RGB3 (24-bit RGB 8-8-8) 240x320 -> RGB3 (24-bit RGB 8-8-8) 240x320: OK
> Video Capture: Captured 8 buffers
> RGB3 (24-bit RGB 8-8-8) 240x320 -> RGBP (16-bit RGB 5-6-5) 240x320: OK
> Video Capture: Captured 8 buffers
> RGB3 (24-bit RGB 8-8-8) 240x320 -> AR15 (16-bit ARGB 1-5-5-5) 240x320: OK
> Video Capture: Captured 8 buffers
> RGB3 (24-bit RGB 8-8-8) 240x320 -> AR12 (16-bit ARGB 4-4-4-4) 240x320: OK
> Video Capture: Captured 8 buffers
> RGBP (16-bit RGB 5-6-5) 1x1 -> BA24 (32-bit ARGB 8-8-8-8) 1x1: OK
> Video Capture: Captured 8 buffers
> RGBP (16-bit RGB 5-6-5) 1x1 -> RGB3 (24-bit RGB 8-8-8) 1x1: OK
> Video Capture: Captured 8 buffers
> RGBP (16-bit RGB 5-6-5) 1x1 -> RGBP (16-bit RGB 5-6-5) 1x1: OK
> Video Capture: Captured 8 buffers
> RGBP (16-bit RGB 5-6-5) 1x1 -> AR15 (16-bit ARGB 1-5-5-5) 1x1: OK
> Video Capture: Captured 8 buffers
> 149.725823] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> RGBP (16-bit RGB 5-6-5) 1[383x65535 -> BA24 (32-bi ARGB 8 8-8-8) 16383x65535: FAIL
> 49.746860] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> RGBP (16-bit RGB 5-[-5) 16383x65535 -> RGB3 (24-b t RGB 8-8-8) 16383x65535: FAIL
> 49.772555] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> RGBP (16-bit R[B 5-6-5 1638 x65535 -> RGBP1(16-bit 4GB 596-5. 16383x67535: FAIL
> 330] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> RGBP (16-bit RGB 5-6-5) 16383x65535 ->[AR15 (1 -bit AR B 1-5-5-5) 11383x65535: 9IL
> .821301] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> RGBP (16-bit RGB 5-6-5) 16383x65535 -> AR12 (16-bit ARGB 4-4-4-4) 16383x65535: FAIL
> Video Capture: Captured 8 buffers
> RGBP (16-bit RGB 5-6-5) 240x320 -> BA24 (32-bit ARGB 8-8-8-8) 240x320: OK
> Video Capture: Captured 8 buffers
> RGBP (16-bit RGB 5-6-5) 240x320 -> RGB3 (24-bit RGB 8-8-8) 240x320: OK
> Video Capture: Captured 8 buffers
> RGBP (16-bit RGB 5-6-5) 240x320 -> RGBP (16-bit RGB 5-6-5) 240x320: OK
> Video Capture: Captured 8 buffers
> RGBP (16-bit RGB 5-6-5) 240x320 -> AR15 (16-bit ARGB 1-5-5-5) 240x320: OK
> Video Capture: Captured 8 buffers
> RGBP (16-bit RGB 5-6-5) 240x320 -> AR12 (16-bit ARGB 4-4-4-4) 240x320: OK
> Video Capture: Captured 8 buffers
> AR15 (16-bit ARGB 1-5-5-5) 1x1 -> BA24 (32-bit ARGB 8-8-8-8) 1x1: OK
> Video Capture: Captured 8 buffers
> AR15 (16-bit ARGB 1-5-5-5) 1x1 -> RGB3 (24-bit RGB 8-8-8) 1x1: OK
> Video Capture: Captured 8 buffers
> AR15 (16-bit ARGB 1-5-5-5) 1x1 -> RGBP (16-bit RGB 5-6-5) 1x1: OK
> Video Capture: Captured 8 buffers
> AR15 (16-bit ARGB 1-5-5-5) 1x1 -> AR15 (16-bit ARGB 1-5-5-5) 1x1: OK
> Video Capture: Captured 8 buffers
> AR15 (16-bit ARGB 1-5-5-5) 1x1 -[ AR1 (16-bit ARGB 4-4-4-4) 1x15 O0
> .956666] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> AR15 (16-bit ARGB 1-[-5-5) 16 83x65535 -> BA24 (32-bit ARGB 8 8-8-8) 16383x15535: FAIL
> 50.977546] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> AR15 (16-bit AR[B 1-5-5-5) 16383x65535 -> R B3 ( 4-b1t RGB 8-8-8) 16383x65535:5FAIL
> 1.003061] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> AR15 (16-bit ARGB 1-5-5[5) 16383x65535 -> RGBP (16-bit RGB 5-6-5) 16383x65535: FAIL
> 151.027900] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> AR15 (16-bit ARGB 1-5[5-5) 16383x65535 -> AR15 (16- it ARGB 1-5-5-5) 16383x65 15: F5IL
> 1.053781] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> AR15 (16-bit ARGB 1-5-5-5) 16383x65535 -> AR12 (16-bit ARGB 4-4-4-4) 16383x65535: FAIL
> Video Capture: Captured 8 buffers
> AR15 (16-bit ARGB 1-5-5-5) 240x320 -> BA24 (32-bit ARGB 8-8-8-8) 240x320: OK
> Video Capture: Captured 8 buffers
> AR15 (16-bit ARGB 1-5-5-5) 240x320 -> RGB3 (24-bit RGB 8-8-8) 240x320: OK
> Video Capture: Captured 8 buffers
> AR15 (16-bit ARGB 1-5-5-5) 240x320 -> RGBP (16-bit RGB 5-6-5) 240x320: OK
> Video Capture: Captured 8 buffers
> AR15 (16-bit ARGB 1-5-5-5) 240x320 -> AR15 (16-bit ARGB 1-5-5-5) 240x320: OK
> Video Capture: Captured 8 buffers
> AR15 (16-bit ARGB 1-5-5-5) 240x320 -> AR12 (16-bit ARGB 4-4-4-4) 240x320: OK
> Video Capture: Captured 8 buffers
> AR12 (16-bit ARGB 4-4-4-4) 1x1 -> BA24 (32-bit ARGB 8-8-8-8) 1x1: OK
> Video Capture: Captured 8 buffers
> AR12 (16-bit ARGB 4-4-4-4) 1x1 -> RGB3 (24-bit RGB 8-8-8) 1x1: OK
> Video Capture: Captured 8 buffers
> AR12 (16-bit ARGB 4-4-4-4) 1x1 -> RGBP (16-bit RGB 5-6-5) 1x1: OK
> Video Capture: Captured 8 buffers
> AR12 (16-bit ARGB 4-4-4-4) 1x1 -> AR15 (16-bit ARGB 1-5-5-5) 1x1: OK
> Video Capture: Captured 8 buffers
> AR12 (16-bit ARGB 4-4-4-4) 1x1 -> AR12 (16-bit A[GB 4-4-4 4) 1x1: OK
> 152.187325] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> AR12 (16-[ t A GB 4-4-4-4) 16383x65135 -> BA24 (32-bit ARGB 8-8-8-8) 16383x6553552.21;31mFAIL0[0m
> 8867] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> AR12 (16-bit ARGB 4-4[4-4 16383x6553 -> RGB3 (24-bit RGB18-8-8) 16383x65535: FAIL
> 52.234355] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> AR12 (16-bit ARGB 4-4-4-4) 16383x65535 -> RGBP (16-bit RGB 5-6-5) 16383x65535: [ 1; 1mFAIL
> 152.258077] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> AR12 (16-bit ARGB 4-4-4[4) 16383x65535 -> R15 (16-bit ARGB 1-5-5-5) 16383x65535: FAIL
> 152.284054] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
> fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
> AR12 (16-bit ARGB 4-4-4-4) 16383x65535 -> AR12 (16-bit ARGB 4-4-4-4) 16383x65535: FAIL
> Video Capture: Captured 8 buffers
> AR12 (16-bit ARGB 4-4-4-4) 240x320 -> BA24 (32-bit ARGB 8-8-8-8) 240x320: OK
> Video Capture: Captured 8 buffers
> AR12 (16-bit ARGB 4-4-4-4) 240x320 -> RGB3 (24-bit RGB 8-8-8) 240x320: OK
> Video Capture: Captured 8 buffers
> AR12 (16-bit ARGB 4-4-4-4) 240x320 -> RGBP (16-bit RGB 5-6-5) 240x320: OK
> Video Capture: Captured 8 buffers
> AR12 (16-bit ARGB 4-4-4-4) 240x320 -> AR15 (16-bit ARGB 1-5-5-5) 240x320: OK
> Video Capture: Captured 8 buffers
> AR12 (16-bit ARGB 4-4-4-4) 240x320 -> AR12 (16-bit ARGB 4-4-4-4) 240x320: OK
> Total for stm-dma2d device /dev/video0: 127, Succeeded: 102, Failed: 25, Warnings: 0
>
> [1] Done v4l2-compliance -s -f -d /dev/video0
> *** BLURB HERE ***
>
> Dillon Min (7):
> media: admin-guide: add stm32-dma2d description
> media: dt-bindings: media: add document for STM32 DMA2d bindings
> clk: stm32: Fix ltdc's clock turn off by clk_disable_unused() after
> kernel startup
> ARM: dts: stm32: Enable DMA2D support on STM32F429 MCU
> ARM: dts: stm32: Enable DMA2D on STM32F469-DISCO board
> media: v4l2-mem2mem: add v4l2_m2m_get_unmapped_area for no-mmu
> platform
> media: stm32-dma2d: STM32 DMA2D driver
>
> .../admin-guide/media/platform-cardlist.rst | 1 +
> .../devicetree/bindings/media/st,stm32-dma2d.yaml | 71 ++
> arch/arm/boot/dts/stm32f429.dtsi | 10 +
> arch/arm/boot/dts/stm32f469-disco.dts | 4 +
> drivers/clk/clk-stm32f4.c | 7 +-
> drivers/media/platform/Kconfig | 9 +
> drivers/media/platform/Makefile | 1 +
> drivers/media/platform/stm32/Makefile | 2 +
> drivers/media/platform/stm32/dma2d/dma2d-hw.c | 143 ++++
> drivers/media/platform/stm32/dma2d/dma2d-regs.h | 114 +++
> drivers/media/platform/stm32/dma2d/dma2d.c | 791 +++++++++++++++++++++
> drivers/media/platform/stm32/dma2d/dma2d.h | 132 ++++
> drivers/media/v4l2-core/v4l2-mem2mem.c | 20 +
> include/media/v4l2-mem2mem.h | 4 +
> 14 files changed, 1305 insertions(+), 4 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/media/st,stm32-dma2d.yaml
> create mode 100644 drivers/media/platform/stm32/dma2d/dma2d-hw.c
> create mode 100644 drivers/media/platform/stm32/dma2d/dma2d-regs.h
> create mode 100644 drivers/media/platform/stm32/dma2d/dma2d.c
> create mode 100644 drivers/media/platform/stm32/dma2d/dma2d.h
>
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