[Letux-kernel] PVRSGX DDK 1.17 on OMAP5432 (Pyra)

H. Nikolaus Schaller hns at goldelico.com
Sun Apr 5 08:13:43 CEST 2020


Hi,

> Am 13.03.2020 um 11:27 schrieb H. Nikolaus Schaller <hns at goldelico.com>:
> 
> Hi,
> I have managed to get it patched.
> 
> There is again some unfortunate check for "DRA7" in the libsrv_um.so
> which has to be disabled.
> 
> The code seems to be even more unfriendly to patching... The DDK 1.14
> did apparently use strcmp(str, "DRA752") while the new code seems to do some
> (u32 *) buffer[offset] == 'DRA7' && (u16 *) buffer[offset] == '52'.
> 
> But after understanding all this there are just 3 bytes to be patched
> in the ELF file.
> 
> With this setup (on Debian Bullseye) I could simply apt-get install kmscube
> and run it.
> 
> Here is a short announcement and video:
> 
> https://pyra-handheld.com/boards/threads/pyra-news-partially-stale-from-the-dragons-mouth.98981/post-1670513

well, it turned out that I was fooled by the kmscube fallback to

  renderer: "llvmpipe (LLVM 9.0.1, 128 bits)".

I recognised that only when I tried kmscube after forgetting to run pvrsrvctl before.

So my user-space setup is lacking something to make kmscube really enforce
to use the SGX. Unfortunately we don't have gles1test1 any more which would
only work with SGX.

So my setup is:
* Debian Bullseye armhf
* installed dependencies: libdrm2, libgl1-mesa-dri, libgbm1, libc6 (>= 2.29)
* our ddk 1.17 based pvrsrvkm
* ti ddk 1.17 um (zeus)
* patch to libsrv_um.so for omap5432
* symlinks (I am not 100% sure if we need them on Bullseye and/or DDK 1.17)

	ln -s libgbm.so.1 /usr/lib/arm-linux-gnueabihf/libgbm.so.2
	ln -s libGLESv2.so.2 /usr/lib/libGLESv2.so.1
	ln -sf pvr_dri.so /usr/lib/dri/omapdrm_dri.so
	ln -sf pvr_dri.so /usr/lib/dri/tilcdc_dri.so

* /etc/powervr.ini

	[default]
	WindowSystem=libpvrDRMWSEGL.so
	DefaultPixelFormat=RGB888

What should I change to make sure that kmscube is using the pvrsgx driver?

BR and thanks,
Nikolaus


root at letux:~# kmscube
failed to bind extensions
failed to load driver: omapdrm
Using display 0x711b30 with EGL version 1.4
===================================
EGL information:
  version: "1.4"
  vendor: "Mesa Project"
  client extensions: "EGL_EXT_device_base EGL_EXT_device_enumeration EGL_EXT_device_query EGL_EXT_platform_base EGL_KHR_client_get_all_proc_addresses EGL_EXT_client_extensions EGL_KHR_debug EGL_EXT_platform_wayland EGL_EXT_platform_x11 EGL_MESA_platform_gbm EGL_MESA_platform_surfaceless EGL_EXT_platform_device"
  display extensions: "EGL_ANDROID_blob_cache EGL_EXT_buffer_age EGL_EXT_image_dma_buf_import EGL_KHR_cl_event2 EGL_KHR_config_attribs EGL_KHR_create_context EGL_KHR_create_context_no_error EGL_KHR_fence_sync EGL_KHR_get_all_proc_addresses EGL_KHR_gl_colorspace EGL_KHR_gl_renderbuffer_image EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_3D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_image EGL_KHR_image_base EGL_KHR_image_pixmap EGL_KHR_no_config_context EGL_KHR_reusable_sync EGL_KHR_surfaceless_context EGL_EXT_pixel_format_float EGL_KHR_wait_sync EGL_MESA_configless_context EGL_MESA_image_dma_buf_export EGL_MESA_query_driver "
===================================
OpenGL ES 2.x information:
  version: "OpenGL ES 3.1 Mesa 19.3.3"
  shading language version: "OpenGL ES GLSL ES 3.10"
  vendor: "VMware, Inc."
  renderer: "llvmpipe (LLVM 9.0.1, 128 bits)"
  extensions: "GL_EXT_blend_minmax GL_EXT_multi_draw_arrays GL_EXT_texture_compression_s3tc GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_rgtc GL_EXT_texture_format_BGRA8888 GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth24 GL_OES_element_index_uint GL_OES_fbo_render_mipmap GL_OES_mapbuffer GL_OES_rgb8_rgba8 GL_OES_standard_derivatives GL_OES_stencil8 GL_OES_texture_3D GL_OES_texture_float GL_OES_texture_float_linear GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_vertex_half_float GL_EXT_texture_sRGB_decode GL_OES_EGL_image GL_OES_depth_texture GL_OES_packed_depth_stencil GL_EXT_texture_type_2_10_10_10_REV GL_NV_conditional_render GL_OES_get_program_binary GL_APPLE_texture_max_level GL_EXT_discard_framebuffer GL_EXT_read_format_bgra GL_EXT_frag_depth GL_NV_fbo_color_attachments GL_OES_EGL_image_external GL_OES_EGL_sync GL_OES_vertex_array_object GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_EXT_occlusion_query_boolean GL_EXT_texture_rg GL_EXT_unpack_subimage GL_NV_draw_buffers GL_NV_read_buffer GL_NV_read_depth GL_NV_read_depth_stencil GL_NV_read_stencil GL_EXT_draw_buffers GL_EXT_map_buffer_range GL_KHR_debug GL_KHR_texture_compression_astc_ldr GL_OES_depth_texture_cube_map GL_OES_required_internalformat GL_OES_surfaceless_context GL_EXT_color_buffer_float GL_EXT_sRGB_write_control GL_EXT_separate_shader_objects GL_EXT_shader_implicit_conversions GL_EXT_shader_integer_mix GL_EXT_base_instance GL_EXT_compressed_ETC1_RGB8_sub_texture GL_EXT_copy_image GL_EXT_draw_buffers_indexed GL_EXT_draw_elements_base_vertex GL_EXT_polygon_offset_clamp GL_EXT_render_snorm GL_EXT_shader_io_blocks GL_EXT_texture_border_clamp GL_EXT_texture_buffer GL_EXT_texture_norm16 GL_EXT_texture_view GL_KHR_context_flush_control GL_NV_image_formats GL_OES_copy_image GL_OES_draw_buffers_indexed GL_OES_draw_elements_base_vertex GL_OES_shader_io_blocks GL_OES_texture_border_clamp GL_OES_texture_buffer GL_OES_texture_stencil8 GL_OES_texture_storage_multisample_2d_array GL_OES_texture_view GL_EXT_blend_func_extended GL_EXT_buffer_storage GL_EXT_float_blend GL_KHR_no_error GL_KHR_texture_compression_astc_sliced_3d GL_OES_EGL_image_external_essl3 GL_OES_shader_image_atomic GL_EXT_clip_cull_distance GL_EXT_disjoint_timer_query GL_EXT_texture_compression_s3tc_srgb GL_MESA_shader_integer_functions GL_EXT_clip_control GL_EXT_texture_compression_bptc GL_KHR_parallel_shader_compile GL_EXT_texture_sRGB_R8 GL_MESA_framebuffer_flip_y GL_EXT_depth_clamp GL_EXT_texture_query_lod "
===================================
Using modifier ffffffffffffff
Modifiers failed!
Using modifier ffffffffffffff
Modifiers failed!
^C[  159.308013] [drm:omap_crtc_error_irq [omapdrm]] *ERROR* lcd: errors: 000040a2
[  159.315551] [drm:omap_crtc_error_irq [omapdrm]] *ERROR* lcd: errors: 00004022

root at letux:~# 



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