SYNOPSIS

void drm_gem_cma_prime_vunmap(struct drm_gem_object * obj, void * vaddr);

ARGUMENTS

obj

GEM object

vaddr

kernel virtual address where the CMA GEM object was mapped

DESCRIPTION

This function removes a buffer exported via DRM PRIME from the kernel's virtual address space. This is a no-op because CMA buffers cannot be unmapped from kernel space. Drivers using the CMA helpers should set this as their DRM driver's ->gem_prime_vunmap callback.

AUTHORS

Jesse Barnes <[email protected]>
Intel Corporation,         
        

Initial version

Laurent Pinchart <[email protected]>
Ideas on board SPRL,         
        

Driver internals

Daniel Vetter <[email protected]>
Intel Corporation,         
        

Contributions all over the place

Lukas Wunner <[email protected]>

vga_switcheroo documentation

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