Started sketching on cmd lists

nx/include/switch.h

@@ -77,6 +77,8 @@ extern "C" {
 #include "switch/nvidia/address_space.h"
 #include "switch/nvidia/channel.h"
 #include "switch/nvidia/info.h"
+#include "switch/nvidia/fence.h"
+#include "switch/nvidia/gpu/cmd_list.h"
 #include "switch/nvidia/gpu/gpfifo.h"
 #include "switch/nvidia/gpu/zcull_ctx.h"
 #include "switch/nvidia/gpu/3d_ctx.h"

nx/include/switch/nvidia/fence.h

@@ -0,0 +1,9 @@
+#pragma once
+
+typedef struct {
+    nvioctl_fence fence;
+} NvFence;
+
+static inline void nvfenceCreate(NvFence* f, nvioctl_fence* fence) {
+    f->fence = *fence;
+}

nx/include/switch/nvidia/gpu/cmd_list.h

@@ -0,0 +1,14 @@
+#pragma once
+
+typedef struct {
+    NvBuffer buffer;
+} NvCmdList;
+
+static inline iova_t nvcmdsGetGpuAddr() {
+    return 0; // TODO
+}
+
+static inline u64 nvcmdsGetListSize() {
+    return 0; // TODO
+}
+

nx/include/switch/nvidia/gpu/gpfifo.h

@@ -6,4 +6,9 @@ typedef struct {
 } NvGpfifo;
 
 Result nvfifoCreate(NvGpfifo* f, NvChannel* parent);
-void   nvfifoClose();
+void   nvfifoClose(NvGpfifo* f);
+
+#define NV_MAKE_GPFIFO_ENTRY(iova, size) \
+    ((iova) | (((u64)(size)) << 42))
+
+Result nvfifoSubmit(NvGpfifo* f, NvCmdList* cmd_list, NvFence* fence_out);

nx/include/switch/nvidia/ioctl.h

@@ -100,8 +100,7 @@ typedef struct {
 } nvioctl_fence;
 
 typedef struct {
-    u32 entry0;
-    u32 entry1;
+    u64 desc;
 } nvioctl_gpfifo_entry;
 
 // Used with nvioctlChannel_AllocObjCtx().

nx/source/nvidia/gpu/gpfifo.c

@@ -10,6 +10,24 @@ Result nvfifoCreate(NvGpfifo* f, NvChannel* parent)
         parent->fd, DEFAULT_FIFO_ENTRIES, 1, 0, 0, 0, 0, &f->fifo_fence);
 }
 
-void nvfifoClose() {
+void nvfifoClose(NvGpfifo* f) {
     /**/
 }
+
+Result nvfifoSubmit(NvGpfifo* f, NvCmdList* cmd_list, NvFence* fence_out)
+{
+    Result rc;
+    nvioctl_gpfifo_entry ent;
+    nvioctl_fence fence;
+
+    ent.desc = nvcmdsGetGpuAddr(cmd_list) | (nvcmdsGetListSize(cmd_list) << 42);
+
+    rc = nvioctlChannel_SubmitGpfifo(
+        f->parent->fd, &ent, 1, 0/*flags*/, &fence);
+
+    if (R_SUCCEEDED(rc)) {
+        nvfenceCreate(fence_out, &fence);
+    }
+
+    return rc;
+}