[Mesa-dev] test Vulkan with radv

[yavn]

Hi,

You should consult the docs for the loader and validation layers (e.g.
here: https://github.com/KhronosGroup/Vulkan-LoaderAndValidationLayers/blob/master/loader/LoaderAndLayerInterface.md).
How the loader discovers drivers is platform-specific.

TL;DR if you want to use a development driver, set this environment
variable before launching a vulkan app:

$ export VK_ICD_FILENAMES=..../mesa/src/amd/vulkan/dev_icd.json

and now vulkaninfo should work. The other JSON is for system-installed
driver, I think (check the paths inside). dev_icd.json should point to
the right file. Also note this will override system-default drivers.
Check the docs, there are many other useful variables (e.g. to enable
validation layers etc.).

Hope that helps,
Maciek.

(sorry if I double-posted, I've sent to the wrong address)


On Thu, Nov 17, 2016 at 8:19 PM, XoD <xoddark at gmail.com> wrote:
> Sorry, forgot my email.
>
> The radeon_icd.json file generated by mesa build are not in the path checked
> by vulkan loader.
> Just need to found how add an additional path for the vulkan driver json
> file.
>
> 2016-11-17 20:02 GMT+01:00 XoD <xoddark at gmail.com>:
>>
>> Hello, I would like do some test with Vulkan, but I have not been able to
>> use the radv drivers at the moment.
>>
>> I have install vulkan package from Fedora 24, and build mesa with radv
>> drivers.
>> The driver library libvulkan_radeon seems to be found by the system :
>>
>> $ldconfig -p | grep vulkan
>>     libvulkan_radeon.so (libc6,x86-64) =>
>> /opt/freedesktop/lib/libvulkan_radeon.so
>>     libvulkan.so.1 (libc6,x86-64) => /lib64/libvulkan.so.1
>>     libvulkan.so (libc6,x86-64) => /lib64/libvulkan.so
>>
>> But when I tried to launch vulkaninfo build from Lunarg Vulkan SDK, I have
>> an error :
>> $ ./vulkaninfo
>> ===========
>> VULKAN INFO
>> ===========
>>
>> Vulkan API Version: 1.0.32
>>
>> INFO: [loader] Code 0 : Found manifest file
>> /usr/share/vulkan/explicit_layer.d/VkLayer_image.json, version "1.0.0"
>> INFO: [loader] Code 0 : Found manifest file
>> /usr/share/vulkan/explicit_layer.d/VkLayer_parameter_validation.json,
>> version "1.0.0"
>> INFO: [loader] Code 0 : Found manifest file
>> /usr/share/vulkan/explicit_layer.d/VkLayer_core_validation.json, version
>> "1.0.0"
>> INFO: [loader] Code 0 : Found manifest file
>> /usr/share/vulkan/explicit_layer.d/VkLayer_unique_objects.json, version
>> "1.0.0"
>> INFO: [loader] Code 0 : Found manifest file
>> /usr/share/vulkan/explicit_layer.d/VkLayer_swapchain.json, version "1.0.0"
>> INFO: [loader] Code 0 : Found manifest file
>> /usr/share/vulkan/explicit_layer.d/VkLayer_object_tracker.json, version
>> "1.0.0"
>> INFO: [loader] Code 0 : Found manifest file
>> /usr/share/vulkan/explicit_layer.d/VkLayer_threading.json, version "1.0.0"
>> INFO: [loader] Code 0 : Found manifest file
>> /usr/share/vulkan/explicit_layer.d/VkLayer_image.json, version "1.0.0"
>> INFO: [loader] Code 0 : Found manifest file
>> /usr/share/vulkan/explicit_layer.d/VkLayer_parameter_validation.json,
>> version "1.0.0"
>> INFO: [loader] Code 0 : Found manifest file
>> /usr/share/vulkan/explicit_layer.d/VkLayer_core_validation.json, version
>> "1.0.0"
>> INFO: [loader] Code 0 : Found manifest file
>> /usr/share/vulkan/explicit_layer.d/VkLayer_unique_objects.json, version
>> "1.0.0"
>> INFO: [loader] Code 0 : Found manifest file
>> /usr/share/vulkan/explicit_layer.d/VkLayer_swapchain.json, version "1.0.0"
>> INFO: [loader] Code 0 : Found manifest file
>> /usr/share/vulkan/explicit_layer.d/VkLayer_object_tracker.json, version
>> "1.0.0"
>> INFO: [loader] Code 0 : Found manifest file
>> /usr/share/vulkan/explicit_layer.d/VkLayer_threading.json, version "1.0.0"
>> INFO: [loader] Code 0 : Found manifest file
>> /home/xod/.local/share/vulkan/implicit_layer.d/steamoverlay_i386.json,
>> version "1.0.0"
>> INFO: [loader] Code 0 : Found manifest file
>> /home/xod/.local/share/vulkan/implicit_layer.d/steamoverlay_x86_64.json,
>> version "1.0.0"
>> Cannot create Vulkan instance.
>> /home/xod/Prog/vulkan/vulkaninfo/vulkaninfo.c:680: failed with
>> VK_ERROR_INCOMPATIBLE_DRIVER
>>
>> Someone have an idea about the origin of the problem, or a method to
>> anderstand what is the problem ?
>> Peraps use the SDK is not a good idea, and directly clone and build
>> VulkanSample and VulkanTools from LunarG github repository is a better idea
>> ?
>>
>> Thank you.
>>
>> PS: I have installed the Fedora package vulkan, vulkan-devel and
>> vulkan-filesystem.
>
>
>
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