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Line 766:
Line 766: − + Line 779:
Line 779: − This one reserves pages in the device address space.+ Line 793:
Line 793: − This one frees pages from the device address space.+ Line 802:
Line 802: − Map a memory region in the device address space. Identical to Linux driver pretty much.+ Line 818:
Line 818: − Modify a memory region in the device address space.+ Line 825:
Line 825: − + − + − + − + − + − + − Unmap a memory region from the device address space.+ Line 852:
Line 852: − + Line 862:
Line 862: − + − + − + − + Line 879:
Line 879: + + + + + + + + + + + + + + + +
→/dev/nvhost-as-gpu
| 0x40284109 || In || 40 || [[#NVGPU_AS_IOCTL_INITIALIZE_EX]]
| 0x40284109 || In || 40 || [[#NVGPU_AS_IOCTL_INITIALIZE_EX]]
|-
|-
| 0xC038410A || Inout || 56 || NVGPU_AS_IOCTL_MAP_BUFFER_EX
| 0xC038410A || Inout || 56 || [[#NVGPU_AS_IOCTL_MAP_BUFFER_EX]]
|-
|-
| 0xC0??4114 || Inout || Variable || [[#NVGPU_AS_IOCTL_REMAP]]
| 0xC0??4114 || Inout || Variable || [[#NVGPU_AS_IOCTL_REMAP]]
=== NVGPU_AS_IOCTL_ALLOC_SPACE ===
=== NVGPU_AS_IOCTL_ALLOC_SPACE ===
Reserves pages in the device address space.
struct {
struct {
=== NVGPU_AS_IOCTL_FREE_SPACE ===
=== NVGPU_AS_IOCTL_FREE_SPACE ===
Frees pages from the device address space.
struct {
struct {
=== NVGPU_AS_IOCTL_MAP_BUFFER ===
=== NVGPU_AS_IOCTL_MAP_BUFFER ===
Maps a memory region in the device address space. Identical to Linux driver pretty much.
On success, the mapped memory region is locked by having [[SVC#MemoryState]] bit34 set.
On success, the mapped memory region is locked by having [[SVC#MemoryState]] bit34 set.
=== NVGPU_AS_IOCTL_MODIFY ===
=== NVGPU_AS_IOCTL_MODIFY ===
Modifies a memory region in the device address space.
Unaligned size will cause a [[#Panic]].
Unaligned size will cause a [[#Panic]].
struct {
struct {
__in u32 flags; // bit0: fixed_offset, bit2: cacheable
__in u32 flags; // bit0: fixed_offset, bit2: cacheable
__in u32 kind; // -1 is default
__in u32 kind; // -1 is default
__in u32 nvmap_handle;
__in u32 nvmap_handle;
__inout u32 page_size; // 0 means don't care
__inout u32 page_size; // 0 means don't care
__in u64 buffer_offset;
__in u64 buffer_offset;
__in u64 mapping_size;
__in u64 mapping_size;
__inout u64 offset;
__inout u64 offset;
};
};
=== NVGPU_AS_IOCTL_UNMAP_BUFFER ===
=== NVGPU_AS_IOCTL_UNMAP_BUFFER ===
Unmaps a memory region from the device address space.
struct {
struct {
=== NVGPU_AS_IOCTL_GET_VA_REGIONS ===
=== NVGPU_AS_IOCTL_GET_VA_REGIONS ===
Nintendo modified to get rid of pointer in struct.
Nintendo's custom implementation to get rid of pointer in struct.
struct va_region {
struct va_region {
struct {
struct {
u64 not_used; // (contained output user ptr on linux, ignored)
u64 not_used; // (contained output user ptr on linux, ignored)
__inout u32 bufsize; // forced to 2*sizeof(struct va_region)
__inout u32 bufsize; // forced to 2*sizeof(struct va_region)
u32 pad;
u32 pad;
__out struct va_region regions[2];
__out struct va_region regions[2];
};
};
__in u64 unk1;
__in u64 unk1;
__in u64 unk2;
__in u64 unk2;
};
=== NVGPU_AS_IOCTL_MAP_BUFFER_EX ===
Maps a memory region in the device address space with extra params.
struct {
__in u32 flags; // bit0: fixed_offset, bit2: cacheable
__in u32 kind; // -1 is default
__in u32 nvmap_handle;
__inout u32 page_size; // 0 means don't care
__in u64 buffer_offset;
__in u64 mapping_size;
__inout u64 offset;
__in u64 unk0;
__in u32 unk1;
u32 pad;
};
};