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7ad0e8cf63
Add a reference count to track how many times a particular chunk of iova memory is pinned (mapped) in the iomu and add msm_gem_unpin_iova to give up references. It is important to note that msm_gem_unpin_iova replaces msm_gem_put_iova because the new implicit behavior that an assigned iova in a given vma is now valid for the life of the buffer and what we are really focusing on is the use of that iova. For now the unmappings are lazy; once the reference counts go to zero they *COULD* be unmapped dynamically but that will require an outside force such as a shrinker or mm_notifiers. For now, we're just focusing on getting the counting right and setting ourselves up to be ready for the future. Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> Signed-off-by: Rob Clark <robdclark@gmail.com> |
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| .. | ||
| mdp4_crtc.c | ||
| mdp4_dsi_encoder.c | ||
| mdp4_dtv_encoder.c | ||
| mdp4_irq.c | ||
| mdp4_kms.c | ||
| mdp4_kms.h | ||
| mdp4_lcdc_encoder.c | ||
| mdp4_lvds_connector.c | ||
| mdp4_lvds_pll.c | ||
| mdp4_plane.c | ||
| mdp4.xml.h | ||