diff mbox series

[drm-misc-next,v9,03/12] drm/gpuvm: export drm_gpuvm_range_valid()

Message ID 20231108001259.15123-4-dakr@redhat.com
State New
Headers
Series DRM GPUVM features |

Commit Message

Danilo Krummrich Nov. 8, 2023, 12:12 a.m. UTC 
  Drivers may use this function to validate userspace requests in advance,
hence export it.

Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
---
 drivers/gpu/drm/drm_gpuvm.c | 14 +++++++++++++-
 include/drm/drm_gpuvm.h     |  1 +
 2 files changed, 14 insertions(+), 1 deletion(-)

Comments

Boris Brezillon Nov. 10, 2023, 11:20 a.m. UTC | #1 
On Wed,  8 Nov 2023 01:12:33 +0100
Danilo Krummrich <dakr@redhat.com> wrote:

> Drivers may use this function to validate userspace requests in advance,
> hence export it.
> 
> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
> Signed-off-by: Danilo Krummrich <dakr@redhat.com>

Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>

> ---
>  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 *
diff mbox series

Patch

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 *