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| author | Raghuram Subramani <raghus2247@gmail.com> | 2024-10-13 13:36:36 +0530 |
|---|---|---|
| committer | Raghuram Subramani <raghus2247@gmail.com> | 2024-10-13 13:36:36 +0530 |
| commit | 6a21d8496b038d1e71fd6a9bd8a95880135665d9 (patch) | |
| tree | 8f96e9273400c0eb8794f92aef733bb5fe52b658 /drivers/gpu/msm/kgsl_iommu.c | |
| parent | b73f506bc0ae7119f5f629b222596a27d7b2e99b (diff) | |
| parent | 17d850f5a5bc1318b67a974b16d32a2dd3bab5cf (diff) | |
Merge remote-tracking branch 'msm8998/lineage-20'master
Diffstat (limited to 'drivers/gpu/msm/kgsl_iommu.c')
| -rw-r--r-- | drivers/gpu/msm/kgsl_iommu.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/gpu/msm/kgsl_iommu.c b/drivers/gpu/msm/kgsl_iommu.c index 31e8a7ea5f65..1f10cb4c1568 100644 --- a/drivers/gpu/msm/kgsl_iommu.c +++ b/drivers/gpu/msm/kgsl_iommu.c @@ -1,5 +1,5 @@ /* Copyright (c) 2011-2021, The Linux Foundation. All rights reserved. - * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved. + * Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and @@ -2397,14 +2397,18 @@ static uint64_t kgsl_iommu_find_svm_region(struct kgsl_pagetable *pagetable, static bool iommu_addr_in_svm_ranges(struct kgsl_iommu_pt *pt, u64 gpuaddr, u64 size) { + u64 end = gpuaddr + size; + + /* Make sure size is not zero and we don't wrap around */ + if (end <= gpuaddr) + return false; + if ((gpuaddr >= pt->compat_va_start && gpuaddr < pt->compat_va_end) && - ((gpuaddr + size) > pt->compat_va_start && - (gpuaddr + size) <= pt->compat_va_end)) + (end > pt->compat_va_start && end <= pt->compat_va_end)) return true; if ((gpuaddr >= pt->svm_start && gpuaddr < pt->svm_end) && - ((gpuaddr + size) > pt->svm_start && - (gpuaddr + size) <= pt->svm_end)) + (end > pt->svm_start && end <= pt->svm_end)) return true; return false; |