diff options
| author | Souptick Joarder <jrdr.linux@gmail.com> | 2018-07-04 20:25:57 +0530 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2018-07-05 11:42:40 -0700 |
| commit | 408633d2e740221204100efb9c3eed71f39aacd0 (patch) | |
| tree | 3693985d205228147cf8cd3236638aa27a9580bd /drivers | |
| parent | 0b7510d15e14ba628ab9bacd6516e3f6a35ba21f (diff) | |
drm/v3d: use new return type vm_fault_t in v3d_gem_fault
Instead of converting an errno into a vm_fault_t ourselves, use
vmf_insert_mixed() which returns a vm_fault_t directly.
Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20180704145556.GA11036@jordon-HP-15-Notebook-PC
Reviewed-by: Matthew Wilcox <willy@infradead.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/v3d/v3d_bo.c | 28 | ||||
| -rw-r--r-- | drivers/gpu/drm/v3d/v3d_drv.h | 3 |
2 files changed, 7 insertions, 24 deletions
diff --git a/drivers/gpu/drm/v3d/v3d_bo.c b/drivers/gpu/drm/v3d/v3d_bo.c index 7b1e2a549a71..54d96518a131 100644 --- a/drivers/gpu/drm/v3d/v3d_bo.c +++ b/drivers/gpu/drm/v3d/v3d_bo.c @@ -227,37 +227,19 @@ v3d_set_mmap_vma_flags(struct vm_area_struct *vma) vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags)); } -int v3d_gem_fault(struct vm_fault *vmf) +vm_fault_t v3d_gem_fault(struct vm_fault *vmf) { struct vm_area_struct *vma = vmf->vma; struct drm_gem_object *obj = vma->vm_private_data; struct v3d_bo *bo = to_v3d_bo(obj); - unsigned long pfn; + pfn_t pfn; pgoff_t pgoff; - int ret; /* We don't use vmf->pgoff since that has the fake offset: */ pgoff = (vmf->address - vma->vm_start) >> PAGE_SHIFT; - pfn = page_to_pfn(bo->pages[pgoff]); - - ret = vm_insert_mixed(vma, vmf->address, __pfn_to_pfn_t(pfn, PFN_DEV)); - - switch (ret) { - case -EAGAIN: - case 0: - case -ERESTARTSYS: - case -EINTR: - case -EBUSY: - /* - * EBUSY is ok: this just means that another thread - * already did the job. - */ - return VM_FAULT_NOPAGE; - case -ENOMEM: - return VM_FAULT_OOM; - default: - return VM_FAULT_SIGBUS; - } + pfn = __pfn_to_pfn_t(page_to_pfn(bo->pages[pgoff]), PFN_DEV); + + return vmf_insert_mixed(vma, vmf->address, pfn); } int v3d_mmap(struct file *filp, struct vm_area_struct *vma) diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h index f32ac8c98f37..282763c9c7f6 100644 --- a/drivers/gpu/drm/v3d/v3d_drv.h +++ b/drivers/gpu/drm/v3d/v3d_drv.h @@ -2,6 +2,7 @@ /* Copyright (C) 2015-2018 Broadcom */ #include <linux/reservation.h> +#include <linux/mm_types.h> #include <drm/drmP.h> #include <drm/drm_encoder.h> #include <drm/drm_gem.h> @@ -252,7 +253,7 @@ int v3d_mmap_bo_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int v3d_get_bo_offset_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); -int v3d_gem_fault(struct vm_fault *vmf); +vm_fault_t v3d_gem_fault(struct vm_fault *vmf); int v3d_mmap(struct file *filp, struct vm_area_struct *vma); struct reservation_object *v3d_prime_res_obj(struct drm_gem_object *obj); int v3d_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma); |