From 79065255abc4b0fae843f539f7f5f0fe9fcac1e6 Mon Sep 17 00:00:00 2001 From: Alistair Popple Date: Thu, 19 Jun 2025 18:57:55 +1000 Subject: mm: remove remaining uses of PFN_DEV MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit PFN_DEV was used by callers of dax_direct_access() to figure out if the returned PFN is associated with a page using pfn_t_has_page() or not. However all DAX PFNs now require an assoicated ZONE_DEVICE page so can assume a page exists. Other users of PFN_DEV were setting it before calling vmf_insert_mixed(). This is unnecessary as it is no longer checked, instead relying on pfn_valid() to determine if there is an associated page or not. Link: https://lkml.kernel.org/r/74b293aebc21b941090bc3e7aeafa91b57c821a5.1750323463.git-series.apopple@nvidia.com Signed-off-by: Alistair Popple Reviewed-by: Christoph Hellwig Reviewed-by: Jason Gunthorpe Reviewed-by: Dan Williams Cc: Balbir Singh Cc: Björn Töpel Cc: Björn Töpel Cc: Chunyan Zhang Cc: David Hildenbrand Cc: Deepak Gupta Cc: Gerald Schaefer Cc: Inki Dae Cc: John Groves Cc: John Hubbard Cc: Lorenzo Stoakes Cc: Matthew Wilcox (Oracle) Cc: Will Deacon Signed-off-by: Andrew Morton --- drivers/gpu/drm/omapdrm/omap_gem.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers/gpu/drm/omapdrm/omap_gem.c') diff --git a/drivers/gpu/drm/omapdrm/omap_gem.c b/drivers/gpu/drm/omapdrm/omap_gem.c index b9c67e4ca360..9df05b2b7ba0 100644 --- a/drivers/gpu/drm/omapdrm/omap_gem.c +++ b/drivers/gpu/drm/omapdrm/omap_gem.c @@ -371,8 +371,7 @@ static vm_fault_t omap_gem_fault_1d(struct drm_gem_object *obj, VERB("Inserting %p pfn %lx, pa %lx", (void *)vmf->address, pfn, pfn << PAGE_SHIFT); - return vmf_insert_mixed(vma, vmf->address, - __pfn_to_pfn_t(pfn, PFN_DEV)); + return vmf_insert_mixed(vma, vmf->address, __pfn_to_pfn_t(pfn, 0)); } /* Special handling for the case of faulting in 2d tiled buffers */ @@ -468,7 +467,7 @@ static vm_fault_t omap_gem_fault_2d(struct drm_gem_object *obj, for (i = n; i > 0; i--) { ret = vmf_insert_mixed(vma, - vaddr, __pfn_to_pfn_t(pfn, PFN_DEV)); + vaddr, __pfn_to_pfn_t(pfn, 0)); if (ret & VM_FAULT_ERROR) break; pfn += priv->usergart[fmt].stride_pfn; -- cgit v1.2.3