diff options
author | Terje Bergstrom <tbergstrom@nvidia.com> | 2016-08-02 17:47:59 -0400 |
---|---|---|
committer | Terje Bergstrom <tbergstrom@nvidia.com> | 2016-08-10 21:23:53 -0400 |
commit | 6effe31755c3fc7578b10f39012983e33d80a9bf (patch) | |
tree | ffa33fb0bc22adcca53e1322e71e6a166eeae3d6 /drivers/gpu/nvgpu/gk20a/mm_gk20a.c | |
parent | 4a979fd7bc7bc3799e51bc9589c60407fe6bf444 (diff) |
gpu: nvgpu: Exclude first page from vidmem size
We initialized vidmem allocator with base=4K, and size of 4GB. This
caused allocator to allocate addresses between 4K and 4GB+4K, causing
a physical MMU fault.
Bug 1793810
Change-Id: I554f62aeee4080acd86ef2c8011089ec9b8120df
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1196300
(cherry picked from commit 41a860e21c6da3f8fda58ceb56e78316f6987f53)
Reviewed-on: http://git-master/r/1200712
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Diffstat (limited to 'drivers/gpu/nvgpu/gk20a/mm_gk20a.c')
-rw-r--r-- | drivers/gpu/nvgpu/gk20a/mm_gk20a.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.c b/drivers/gpu/nvgpu/gk20a/mm_gk20a.c index 16ff8ee8..b63444d0 100644 --- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.c +++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.c | |||
@@ -765,7 +765,7 @@ static int gk20a_init_vidmem(struct mm_gk20a *mm) | |||
765 | return 0; | 765 | return 0; |
766 | 766 | ||
767 | err = gk20a_buddy_allocator_init(&g->mm.vidmem.allocator, "vidmem", | 767 | err = gk20a_buddy_allocator_init(&g->mm.vidmem.allocator, "vidmem", |
768 | SZ_4K, size, SZ_4K, 0); | 768 | SZ_4K, size - SZ_4K, SZ_4K, 0); |
769 | if (err) { | 769 | if (err) { |
770 | gk20a_err(d, "Failed to register vidmem for size %zu: %d", | 770 | gk20a_err(d, "Failed to register vidmem for size %zu: %d", |
771 | size, err); | 771 | size, err); |