Re: [PATCH v6 02/16] drm/ttm: Expose ttm_tt_unpopulate for driver use

Am 2021-05-10 um 12:36 p.m. schrieb Andrey Grodzovsky:

It's needed to drop iommu backed pages on device unplug before device's IOMMU group is released.

I don't see any calls to ttm_tt_unpopulate in the rest of the series now. Is that an accident, or can this patch be dropped?

Regards,   Felix

Signed-off-by: Andrey Grodzovsky andrey.grodzovsky@amd.com

drivers/gpu/drm/ttm/ttm_tt.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c index 539e0232cb3b..dfbe1ea8763f 100644 --- a/drivers/gpu/drm/ttm/ttm_tt.c +++ b/drivers/gpu/drm/ttm/ttm_tt.c @@ -433,3 +433,4 @@ void ttm_tt_mgr_init(unsigned long num_pages, unsigned long num_dma32_pages) if (!ttm_dma32_pages_limit) ttm_dma32_pages_limit = num_dma32_pages; } +EXPORT_SYMBOL(ttm_tt_unpopulate);