mirror of
https://github.com/switchbrew/libnx.git
synced 2025-06-22 13:02:38 +02:00
e7ae7ea846
- nvAddressSpaceMapBuffer now accepts a flags parameter instead of hardcoding NvMapBufferFlags_IsCacheable. - NvBufferFlags was incorrect and was thus removed. - nvBufferCreate/nvBufferCreateRw replaced with nvBufferCreate, with an extra 'is_cacheable' bool parameter. There's no such thing as a "read-only/read-write" buffer. - nvBufferMakeCpuUncached/nvBufferMakeCpuCached were removed.
72 lines
1.8 KiB
C
72 lines
1.8 KiB
C
#include <malloc.h>
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#include "types.h"
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#include "result.h"
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#include "arm/atomics.h"
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#include "kernel/svc.h"
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#include "services/nv.h"
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#include "nvidia/ioctl.h"
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#include "nvidia/buffer.h"
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#include "nvidia/channel.h"
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#include "nvidia/address_space.h"
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Result nvAddressSpaceCreate(NvAddressSpace* a)
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{
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Result rc;
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a->has_init = true;
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rc = nvOpen(&a->fd, "/dev/nvhost-as-gpu");
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if (R_FAILED(rc))
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a->fd = -1;
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if (R_SUCCEEDED(rc))
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rc = nvioctlNvhostAsGpu_InitializeEx(a->fd, 1, 0x10000);
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if (R_FAILED(rc))
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nvAddressSpaceClose(a);
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return rc;
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}
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void nvAddressSpaceClose(NvAddressSpace* a)
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{
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if (!a->has_init)
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return;
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if (a->fd != -1)
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nvClose(a->fd);
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a->fd = -1;
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}
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Result nvAddressSpaceReserveAlign(
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NvAddressSpace* a, NvPageSize align, u32 pages, NvPageSize page_sz,
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iova_t* iova_out) {
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return nvioctlNvhostAsGpu_AllocSpace(a->fd, pages, page_sz, 0, align, iova_out);
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}
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Result nvAddressSpaceReserveAtFixedAddr(
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NvAddressSpace* a, iova_t addr, u32 pages, NvPageSize page_sz) {
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return nvioctlNvhostAsGpu_AllocSpace(a->fd, pages, page_sz, 1, addr, NULL);
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}
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Result nvAddressSpaceReserveFull(NvAddressSpace* a) {
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return nvAddressSpaceReserveAlign(a, NvPageSize_64K, 0x10000, NvPageSize_64K, NULL);
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}
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Result nvAddressSpaceMapBuffer(
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NvAddressSpace* a, u32 fd, u32 flags, NvKind kind,
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iova_t* iova_out) {
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return nvioctlNvhostAsGpu_MapBufferEx(
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a->fd, flags, kind, fd, 0x10000, 0, 0, 0, iova_out);
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}
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Result nvAddressSpaceUnmapBuffer(NvAddressSpace* a, iova_t iova) {
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return nvioctlNvhostAsGpu_UnmapBuffer(a->fd, iova);
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}
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Result nvAddressSpaceBindToChannel(NvAddressSpace* a, NvChannel* channel) {
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return nvioctlNvhostAsGpu_BindChannel(a->fd, channel->fd);
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}
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