https://bugzilla.kernel.org/show_bug.cgi?id=80331
--- Comment #13 from Alex Deucher alexdeucher@gmail.com --- You need to compile the firmware into your kernel when you build the driver into the kernel. In both of your static builds, the firmware fails to load:
static-with-patch: [ 0.263616] r600_cp: Failed to load firmware "radeon/RV730_pfp.bin" [ 0.263668] [drm:rv770_init] *ERROR* Failed to load firmware! [ 0.263721] radeon 0000:01:00.0: Fatal error during GPU init
static-without-patch: [ 0.269288] [drm] Loading RV730 Microcode [ 0.269354] r600_cp: Failed to load firmware "radeon/RV730_pfp.bin" [ 0.269403] [drm:rv770_startup] *ERROR* Failed to load firmware!
You need to specify CONFIG_EXTRA_FIRMWARE in your kernel configuration and point it to the firmware files required by the driver. E.g.,
CONFIG_FIRMWARE_IN_KERNEL=y CONFIG_EXTRA_FIRMWARE_DIR="/lib/firmware" CONFIG_EXTRA_FIRMWARE="radeon/RV730_me.bin radeon/RV730_pfp.bin radeon/R700_rlc.bin RV740_smc.bin"