[Issue]: Can't build amdgpu-dkms on recent kernels

[G-Guillard]

Problem Description

As mentioned in this comment, issue reported in #2939 isn't Ubuntu specific but kernel-related.

The main error, ‘MAX_ORDER’ undeclared here, is due to this change in the kernel source. It is easy to fix, just replace the few occurrences of MAX_ORDER + 1 into NR_PAGE_ORDERS and of MAX_ORDER into NR_PAGE_ORDERS - 1 in the following files :

/usr/src/amdgpu-6.7.0-1756574.22.04/ttm/ttm_pool.c
/usr/src/amdgpu-6.7.0-1756574.22.04/ttm/tests/ttm_pool_test.c
/usr/src/amdgpu-6.7.0-1756574.22.04/ttm/tests/ttm_device_test.c
/usr/src/amdgpu-6.7.0-1756574.22.04/include/drm/ttm/ttm_pool.h

However the build also fails on two other issues.

The first one, error: ‘I2C_CLASS_DDC’ undeclared (first use in this function); did you mean ‘I2C_CLASS_SPD’? is related to this change in the kernel source and can be fixed by adding #define I2C_CLASS_DDC (1<<3) /* DDC bus on graphics adapters */ to amd/display/amdgpu_dm/amdgpu_dm.h and amd/amdgpu/amdgpu_i2c.h.

The last one, too few arguments to function ‘drm_exec_init’, can simply be fixed by adding a 0 argument to calls to this function (e.g. drm_exec_init(&exec, DRM_EXEC_IGNORE_DUPLICATES); -> drm_exec_init(&exec, DRM_EXEC_IGNORE_DUPLICATES, 0);).

I don't know how to check if the module works as expected after that, but at least it builds.

As I'm a complete kernel noob, I'm not sure whether there may be side effects by this modifications. The first one should be pretty safe as I understand it. The commit comment of the I2C one is not very reassuring. I think the last one should also be safe.

Operating System

GNU/Linux

NB : GPU randomly selected as mine is not in the list (Lucienne). Same for ROCm, 6.7 is not in the list.

[radudiaconu0]

dkms is only avilable on kernel 6.5 maximum

[ppanchad-amd]

@G-Guillard Internal ticket has been created to investigate this issue. Thanks!

[nairboon]

dkms is only avilable on kernel 6.5 maximum

The latest release 6.1.1 seems to compile on kernel 6.8

[ppanchad-amd]

@nairboon Thank you for verifying with the latest build