NVIDIA/open-gpu-kernel-modules
1
0
Fork 0
mirror of https://github.com/NVIDIA/open-gpu-kernel-modules.git synced 2026-02-09 01:29:57 +00:00
Code Issues Packages Projects Releases Wiki Activity

575.51.02

Browse Source
This commit is contained in:
Bernhard Stoeckner
2025-04-17 19:35:38 +02:00
parent e8113f665d
commit 4159579888
1142 changed files with 309085 additions and 272273 deletions
Download Patch File Download Diff File Expand all files Collapse all files

57
kernel-open/nvidia-uvm/uvm_common.h
View File

@@ -250,15 +250,6 @@ static inline NvBool uvm_ranges_overlap(NvU64 a_start, NvU64 a_end, NvU64 b_star
return a_end >= b_start && b_end >= a_start;
}
static int debug_mode(void)
{
#ifdef DEBUG
return 1;
#else
return 0;
#endif
}
static inline void kmem_cache_destroy_safe(struct kmem_cache **ppCache)
{
if (ppCache)
@@ -336,22 +327,6 @@ typedef struct
NvHandle user_object;
} uvm_rm_user_object_t;
typedef enum
{
UVM_FD_UNINITIALIZED,
UVM_FD_INITIALIZING,
UVM_FD_VA_SPACE,
UVM_FD_MM,
UVM_FD_COUNT
} uvm_fd_type_t;
// This should be large enough to fit the valid values from uvm_fd_type_t above.
// Note we can't use order_base_2(UVM_FD_COUNT) to define this because our code
// coverage tool fails due when the preprocessor expands that to a huge mess of
// ternary operators.
#define UVM_FD_TYPE_BITS 2
#define UVM_FD_TYPE_MASK ((1UL << UVM_FD_TYPE_BITS) - 1)
// Macro used to compare two values for types that support less than operator.
// It returns -1 if a < b, 1 if a > b and 0 if a == 0
#define UVM_CMP_DEFAULT(a,b) \
@@ -374,37 +349,13 @@ typedef enum
// file. A NULL input returns false.
bool uvm_file_is_nvidia_uvm(struct file *filp);
// Returns the type of data filp->private_data contains to and if ptr_val !=
// NULL returns the value of the pointer.
uvm_fd_type_t uvm_fd_type(struct file *filp, void **ptr_val);
// Returns the pointer stored in filp->private_data if the type
// matches, otherwise returns NULL.
void *uvm_fd_get_type(struct file *filp, uvm_fd_type_t type);
// Reads the first word in the supplied struct page.
static inline void uvm_touch_page(struct page *page)
{
char *mapping;
UVM_ASSERT(page);
mapping = (char *) kmap(page);
(void)READ_ONCE(*mapping);
kunmap(page);
}
// Like uvm_file_is_nvidia_uvm(), but further requires that the input file
// represent a UVM VA space (has fd type UVM_FD_VA_SPACE).
bool uvm_file_is_nvidia_uvm_va_space(struct file *filp);
// Return true if the VMA is one used by UVM managed allocations.
bool uvm_vma_is_managed(struct vm_area_struct *vma);
static bool uvm_platform_uses_canonical_form_address(void)
{
if (NVCPU_IS_PPC64LE)
return false;
return true;
}
// Similar to the GPU MMU HAL num_va_bits(), it returns the CPU's num_va_bits().
static NvU32 uvm_cpu_num_va_bits(void)
{
@@ -420,7 +371,7 @@ static void uvm_get_unaddressable_range(NvU32 num_va_bits, NvU64 *first, NvU64 *
// Maxwell GPUs (num_va_bits == 40b) do not support canonical form address
// even when plugged into platforms using it.
if (uvm_platform_uses_canonical_form_address() && num_va_bits > 40) {
if (num_va_bits > 40) {
*first = 1ULL << (num_va_bits - 1);
*outer = (NvU64)((NvS64)(1ULL << 63) >> (64 - num_va_bits));
}