Yours3lf
commented
4 years ago This driver does not support SPIR-V, you need to use assembly, please see the numerous examples :) If you feel like that, feel free to add SPIR-V support, I'd gladly merge it.
Describe the bug A clear and concise description of what the bug is. Frequency of occurance. Command line output. Stack trace.
The attached Vulkan application runs on a Raspberry Pi 4, although the Pi4 uses a completely different Vulkan driver. I was hoping to run it on a 3B+ using rpi-vk-driver, however when vkCreateShaderModule() is called, rpi-vk-driver returns VK_ERROR_OUT_OF_HOST_MEMORY. Further inspection reveals that VK_ERROR_OUT_OF_HOST_MEMORY is returned because the shader magic for the shader does not add up, as seen here: https://github.com/Yours3lf/rpi-vk-driver/blob/master/driver/shader.c#L25
These same SPIR-V shaders run fine on a Raspberry Pi 4 (v3dv) as well as on mesa's RADV and NVIDIA's proprietary drivers for GTX graphics cards, so I suspect there is a driver issue. Is there anything that can be done about this?
To Reproduce Steps to reproduce the behavior:
./micro0if(magic != 0x14E45250)if statement block in the driver, you will find the driver is returning VK_ERROR_OUT_OF_HOST_MEMORY due to bad shader magic.Expected behavior At the very least, vkCreateShaderModule() should complete successfully, because I know these are good/valid SPIR-V shaders. Given vkCreateShaderModule() completes successfully, the program should probably run fine then- there could be other non-driver issues running this application on the 3B+ that I have not discovered yet, but probably not since it runs fine on the Pi4 and other Vulkan drivers.
Device information (please complete the following information):
$ lsb_release -a No LSB modules are available. Distributor ID: Raspbian Description: Raspbian GNU/Linux 10 (buster) Release: 10 Codename: buster
$ lsmod Module Size Used by cmac 16384 1 rfcomm 45056 4 bnep 20480 2 hci_uart 40960 1 btbcm 16384 1 hci_uart bluetooth 376832 29 hci_uart,bnep,btbcm,rfcomm ecdh_generic 16384 2 bluetooth ecc 32768 1 ecdh_generic 8021q 32768 0 garp 16384 1 8021q stp 16384 1 garp llc 16384 2 garp,stp evdev 24576 3 vc4 233472 3 cec 49152 1 vc4 hid_apple 16384 0 brcmfmac 319488 0 drm_kms_helper 184320 3 vc4 brcmutil 16384 1 brcmfmac drm 446464 3 vc4,drm_kms_helper sha256_generic 16384 0 libsha256 20480 1 sha256_generic drm_panel_orientation_quirks 16384 1 drm snd_soc_core 200704 1 vc4 snd_compress 20480 1 snd_soc_core cfg80211 679936 1 brcmfmac snd_pcm_dmaengine 16384 1 snd_soc_core syscopyarea 16384 1 drm_kms_helper sysfillrect 16384 1 drm_kms_helper sysimgblt 16384 1 drm_kms_helper fb_sys_fops 16384 1 drm_kms_helper rfkill 28672 6 bluetooth,cfg80211 raspberrypi_hwmon 16384 0 bcm2835_codec 36864 0 i2c_bcm2835 16384 0 bcm2835_isp 32768 0 bcm2835_v4l2 45056 0 v4l2_mem2mem 32768 1 bcm2835_codec bcm2835_mmal_vchiq 28672 3 bcm2835_isp,bcm2835_codec,bcm2835_v4l2 videobuf2_dma_contig 20480 2 bcm2835_isp,bcm2835_codec videobuf2_vmalloc 16384 1 bcm2835_v4l2 videobuf2_memops 16384 2 videobuf2_dma_contig,videobuf2_vmalloc videobuf2_v4l2 28672 4 bcm2835_isp,bcm2835_codec,bcm2835_v4l2,v4l2_mem2mem videobuf2_common 57344 5 bcm2835_isp,bcm2835_codec,bcm2835_v4l2,v4l2_mem2mem,videobuf2_v4l2 snd_bcm2835 24576 1 snd_pcm 94208 4 vc4,snd_pcm_dmaengine,snd_bcm2835,snd_soc_core videodev 237568 6 bcm2835_isp,bcm2835_codec,videobuf2_common,bcm2835_v4l2,v4l2_mem2mem,videobuf2_v4l2 snd_timer 32768 1 snd_pcm mc 45056 6 bcm2835_isp,bcm2835_codec,videobuf2_common,videodev,v4l2_mem2mem,videobuf2_v4l2 snd 69632 9 snd_compress,snd_timer,snd_bcm2835,snd_soc_core,snd_pcm vc_sm_cma 32768 2 bcm2835_isp,bcm2835_mmal_vchiq uio_pdrv_genirq 16384 0 uio 20480 1 uio_pdrv_genirq fixed 16384 0 i2c_dev 16384 0 ip_tables 28672 0 x_tables 32768 1 ip_tables ipv6 450560 24 nf_defrag_ipv6 20480 1 ipv6