Displaying 5 results from an estimated 5 matches for "drm_gpuva_check_overflow".
2023 Jul 20
1
[PATCH drm-misc-next v8 01/12] drm: manager to keep track of GPUs VA mappings
...f-by: Danilo Krummrich <dakr at redhat.com>
[...]
> diff --git a/drivers/gpu/drm/drm_gpuva_mgr.c b/drivers/gpu/drm/drm_gpuva_mgr.c
> new file mode 100644
> index 000000000000..dee2235530d6
> --- /dev/null
> +++ b/drivers/gpu/drm/drm_gpuva_mgr.c
[...]
> +static bool
> +drm_gpuva_check_overflow(u64 addr, u64 range)
> +{
> + u64 end;
> +
> + return WARN(check_add_overflow(addr, range, &end),
> + "GPUVA address limited to %lu bytes.\n", sizeof(end));
> +}
This produces a warning on 32 bit systems as sizeof() isn't necessarily
an unsigned long. The...
2023 Jul 20
2
[PATCH drm-misc-next v8 01/12] drm: manager to keep track of GPUs VA mappings
...NE(struct drm_gpuva, rb.node, u64, rb.__subtree_last,
+ GPUVA_START, GPUVA_LAST, static __maybe_unused,
+ drm_gpuva_it)
+
+static int __drm_gpuva_insert(struct drm_gpuva_manager *mgr,
+ struct drm_gpuva *va);
+static void __drm_gpuva_remove(struct drm_gpuva *va);
+
+static bool
+drm_gpuva_check_overflow(u64 addr, u64 range)
+{
+ u64 end;
+
+ return WARN(check_add_overflow(addr, range, &end),
+ "GPUVA address limited to %lu bytes.\n", sizeof(end));
+}
+
+static bool
+drm_gpuva_in_mm_range(struct drm_gpuva_manager *mgr, u64 addr, u64 range)
+{
+ u64 end = addr + range;
+ u64 mm_st...
2023 Jun 29
3
[PATCH drm-next v6 02/13] drm: manager to keep track of GPUs VA mappings
...uva, rb.node, u64, rb.__subtree_last,
+ GPUVA_START, GPUVA_LAST, static __attribute__((unused)),
+ drm_gpuva_it)
+
+static int __drm_gpuva_insert(struct drm_gpuva_manager *mgr,
+ struct drm_gpuva *va);
+static void __drm_gpuva_remove(struct drm_gpuva *va);
+
+static inline bool
+drm_gpuva_check_overflow(u64 addr, u64 range)
+{
+ u64 end;
+
+ return WARN(check_add_overflow(addr, range, &end),
+ "GPUVA address limited to %lu bytes.\n", sizeof(end));
+}
+
+static inline bool
+drm_gpuva_in_mm_range(struct drm_gpuva_manager *mgr, u64 addr, u64 range)
+{
+ u64 end = addr + range;
+ u6...
2023 Jul 13
1
[PATCH drm-next v7 02/13] drm: manager to keep track of GPUs VA mappings
...NE(struct drm_gpuva, rb.node, u64, rb.__subtree_last,
+ GPUVA_START, GPUVA_LAST, static __maybe_unused,
+ drm_gpuva_it)
+
+static int __drm_gpuva_insert(struct drm_gpuva_manager *mgr,
+ struct drm_gpuva *va);
+static void __drm_gpuva_remove(struct drm_gpuva *va);
+
+static bool
+drm_gpuva_check_overflow(u64 addr, u64 range)
+{
+ u64 end;
+
+ return WARN(check_add_overflow(addr, range, &end),
+ "GPUVA address limited to %lu bytes.\n", sizeof(end));
+}
+
+static bool
+drm_gpuva_in_mm_range(struct drm_gpuva_manager *mgr, u64 addr, u64 range)
+{
+ u64 end = addr + range;
+ u64 mm_st...
2023 Aug 20
3
[PATCH drm-misc-next 0/3] [RFC] DRM GPUVA Manager GPU-VM features
So far the DRM GPUVA manager offers common infrastructure to track GPU VA
allocations and mappings, generically connect GPU VA mappings to their
backing buffers and perform more complex mapping operations on the GPU VA
space.
However, there are more design patterns commonly used by drivers, which
can potentially be generalized in order to make the DRM GPUVA manager
represent a basic GPU-VM