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| author | Danilo Krummrich <dakr@redhat.com> | 2023-11-08 03:12:32 +0300 |
|---|---|---|
| committer | Danilo Krummrich <dakr@redhat.com> | 2023-11-13 20:17:34 +0300 |
| commit | d1adea27d0c8a08031b075f1bf4c5ce6f135ad7c (patch) | |
| tree | 46a8cd3e6a22ce1daa89d722b46d737afe23e739 /drivers/gpu/drm/drm_gpuvm.c | |
| parent | 546ca4d35dccaca6613766ed36ccfb2b5bd63bfe (diff) | |
| download | linux-d1adea27d0c8a08031b075f1bf4c5ce6f135ad7c.tar.xz | |
drm/gpuvm: don't always WARN in drm_gpuvm_check_overflow()
Don't always WARN in drm_gpuvm_check_overflow() and separate it into a
drm_gpuvm_check_overflow() and a dedicated
drm_gpuvm_warn_check_overflow() variant.
This avoids printing warnings due to invalid userspace requests.
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231108001259.15123-3-dakr@redhat.com
Diffstat (limited to 'drivers/gpu/drm/drm_gpuvm.c')
| -rw-r--r-- | drivers/gpu/drm/drm_gpuvm.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/drivers/gpu/drm/drm_gpuvm.c b/drivers/gpu/drm/drm_gpuvm.c index d7367a202fee..445767f8fbc4 100644 --- a/drivers/gpu/drm/drm_gpuvm.c +++ b/drivers/gpu/drm/drm_gpuvm.c @@ -614,12 +614,18 @@ static int __drm_gpuva_insert(struct drm_gpuvm *gpuvm, static void __drm_gpuva_remove(struct drm_gpuva *va); static bool -drm_gpuvm_check_overflow(struct drm_gpuvm *gpuvm, u64 addr, u64 range) +drm_gpuvm_check_overflow(u64 addr, u64 range) { u64 end; - return drm_WARN(gpuvm->drm, check_add_overflow(addr, range, &end), - "GPUVA address limited to %zu bytes.\n", sizeof(end)); + return check_add_overflow(addr, range, &end); +} + +static bool +drm_gpuvm_warn_check_overflow(struct drm_gpuvm *gpuvm, u64 addr, u64 range) +{ + return drm_WARN(gpuvm->drm, drm_gpuvm_check_overflow(addr, range), + "GPUVA address limited to %zu bytes.\n", sizeof(addr)); } static bool @@ -647,7 +653,7 @@ static bool drm_gpuvm_range_valid(struct drm_gpuvm *gpuvm, u64 addr, u64 range) { - return !drm_gpuvm_check_overflow(gpuvm, addr, range) && + return !drm_gpuvm_check_overflow(addr, range) && drm_gpuvm_in_mm_range(gpuvm, addr, range) && !drm_gpuvm_in_kernel_node(gpuvm, addr, range); } @@ -682,7 +688,7 @@ drm_gpuvm_init(struct drm_gpuvm *gpuvm, const char *name, gpuvm->ops = ops; gpuvm->drm = drm; - drm_gpuvm_check_overflow(gpuvm, start_offset, range); + drm_gpuvm_warn_check_overflow(gpuvm, start_offset, range); gpuvm->mm_start = start_offset; gpuvm->mm_range = range; @@ -691,8 +697,8 @@ drm_gpuvm_init(struct drm_gpuvm *gpuvm, const char *name, gpuvm->kernel_alloc_node.va.addr = reserve_offset; gpuvm->kernel_alloc_node.va.range = reserve_range; - if (likely(!drm_gpuvm_check_overflow(gpuvm, reserve_offset, - reserve_range))) + if (likely(!drm_gpuvm_warn_check_overflow(gpuvm, reserve_offset, + reserve_range))) __drm_gpuva_insert(gpuvm, &gpuvm->kernel_alloc_node); } } |