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drm/i915/gvt: Replace roundup with DIV_ROUND_UP 

It's a bit redundant for the maths here using roundup.

Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Tested-by: Terrence Xu <terrence.xu@intel.com>
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Link: https://lore.kernel.org/r/20220723020256.30081-3-nicolinc@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Nicolin Chen 2022-07-22 19:02:48 -07:00 committed by Alex Williamson
parent e8f90717ed
commit 2c9e8c0110
1 changed files with 2 additions and 5 deletions
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7
drivers/gpu/drm/i915/gvt/kvmgt.c
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@ -231,11 +231,9 @@ static void intel_gvt_cleanup_vgpu_type_groups(struct intel_gvt *gvt)
static void gvt_unpin_guest_page(struct intel_vgpu *vgpu, unsigned long gfn,
unsigned long size)
{
int total_pages;
int total_pages = DIV_ROUND_UP(size, PAGE_SIZE);
int npage;
total_pages = roundup(size, PAGE_SIZE) / PAGE_SIZE;
for (npage = 0; npage < total_pages; npage++) {
unsigned long cur_gfn = gfn + npage;
@ -247,12 +245,11 @@ static void gvt_unpin_guest_page(struct intel_vgpu *vgpu, unsigned long gfn,
static int gvt_pin_guest_page(struct intel_vgpu *vgpu, unsigned long gfn,
unsigned long size, struct page **page)
{
int total_pages = DIV_ROUND_UP(size, PAGE_SIZE);
unsigned long base_pfn = 0;
int total_pages;
int npage;
int ret;
total_pages = roundup(size, PAGE_SIZE) / PAGE_SIZE;
/*
* We pin the pages one-by-one to avoid allocating a big arrary
* on stack to hold pfns.