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([2a02:810d:4b3f:de9c:642:1aff:fe31:a19f]) by smtp.gmail.com with ESMTPSA id ba26-20020a0564021ada00b00533dad8a9c5sm5885593edb.38.2023.11.07.16.13.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Nov 2023 16:13:14 -0800 (PST) From: Danilo Krummrich To: airlied@gmail.com, daniel@ffwll.ch, matthew.brost@intel.com, thomas.hellstrom@linux.intel.com, sarah.walker@imgtec.com, donald.robson@imgtec.com, boris.brezillon@collabora.com, christian.koenig@amd.com, faith@gfxstrand.net Cc: dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org, linux-kernel@vger.kernel.org, Danilo Krummrich Subject: [PATCH drm-misc-next v9 03/12] drm/gpuvm: export drm_gpuvm_range_valid() Date: Wed, 8 Nov 2023 01:12:33 +0100 Message-ID: <20231108001259.15123-4-dakr@redhat.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231108001259.15123-1-dakr@redhat.com> References: <20231108001259.15123-1-dakr@redhat.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Tue, 07 Nov 2023 16:14:14 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1781952628341750656 X-GMAIL-MSGID: 1781952628341750656 Drivers may use this function to validate userspace requests in advance, hence export it. Reviewed-by: Thomas Hellström Signed-off-by: Danilo Krummrich Reviewed-by: Boris Brezillon --- drivers/gpu/drm/drm_gpuvm.c | 14 +++++++++++++- include/drm/drm_gpuvm.h | 1 + 2 files changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_gpuvm.c b/drivers/gpu/drm/drm_gpuvm.c index 445767f8fbc4..2669f9bbc377 100644 --- a/drivers/gpu/drm/drm_gpuvm.c +++ b/drivers/gpu/drm/drm_gpuvm.c @@ -649,7 +649,18 @@ drm_gpuvm_in_kernel_node(struct drm_gpuvm *gpuvm, u64 addr, u64 range) return krange && addr < kend && kstart < end; } -static bool +/** + * drm_gpuvm_range_valid() - checks whether the given range is valid for the + * given &drm_gpuvm + * @gpuvm: the GPUVM to check the range for + * @addr: the base address + * @range: the range starting from the base address + * + * Checks whether the range is within the GPUVM's managed boundaries. + * + * Returns: true for a valid range, false otherwise + */ +bool drm_gpuvm_range_valid(struct drm_gpuvm *gpuvm, u64 addr, u64 range) { @@ -657,6 +668,7 @@ drm_gpuvm_range_valid(struct drm_gpuvm *gpuvm, drm_gpuvm_in_mm_range(gpuvm, addr, range) && !drm_gpuvm_in_kernel_node(gpuvm, addr, range); } +EXPORT_SYMBOL_GPL(drm_gpuvm_range_valid); /** * drm_gpuvm_init() - initialize a &drm_gpuvm diff --git a/include/drm/drm_gpuvm.h b/include/drm/drm_gpuvm.h index 687fd5893624..13eac6f70061 100644 --- a/include/drm/drm_gpuvm.h +++ b/include/drm/drm_gpuvm.h @@ -253,6 +253,7 @@ void drm_gpuvm_init(struct drm_gpuvm *gpuvm, const char *name, const struct drm_gpuvm_ops *ops); void drm_gpuvm_destroy(struct drm_gpuvm *gpuvm); +bool drm_gpuvm_range_valid(struct drm_gpuvm *gpuvm, u64 addr, u64 range); bool drm_gpuvm_interval_empty(struct drm_gpuvm *gpuvm, u64 addr, u64 range); static inline struct drm_gpuva *