Fix some of the memory allocation in framebuffers (#182)

* Fix some of the memory allocation in framebuffers

Also includes a the questionable change of undoing a previously
 made match for func_80027A20. The changes made here remove an
 AVOID_UB usage and (I would argue) is therefore more "correct",
 but undoing a byte-for-byte match is admittedly bad.

Also adds in some header files and updates some not-quite-right
 decomps to be slighly more accurate.

Signed-off-by: Taggerung <tyler.taggerung@gmail.com>

1 files changed, 39 insertions, 227 deletions

diff --git a/src/kart_dma.c b/src/kart_dma.c
index 6761c9706..d4daa2ad6 100644
--- a/src/kart_dma.c
+++ b/src/kart_dma.c
@@ -1,189 +1,10 @@
 #include <ultra64.h>
 #include <macros.h>
+#include "main.h"
+#include "variables.h"
+#include "framebuffers.h"
 #include "common_structs.h"
-
-extern OSIoMesg gDmaIoMesg;
-extern OSMesgQueue gDmaMesgQueue;
-extern OSMesg gMainReceivedMesg;
-
-extern u8 _kart_texturesSegmentRomStart[];
-extern uintptr_t *gKartPalettes[];
-
-// arrays?
-extern u16 D_802F1F80[2][4][2048];
-extern u8 D_802DFB80[2][2][18688];
-
-extern u16 D_800DDEB0[];
-/*
-u16 D_800DDEB0[] = { // sizes
-    0x06c0, 0x06e0, 0x06e0, 0x0680, 0x07c0, 0x0700, 0x0680, 0x0910
-};
-*/
-extern s32 gActiveScreenMode;
-
-extern uintptr_t *gKartTextureGroup18s[];
-
-extern uintptr_t *gKartMarioGroup8[];
-extern uintptr_t *gKartMarioGroup7[];
-extern uintptr_t *gKartMarioGroup6[];
-extern uintptr_t *gKartMarioGroup5[];
-extern uintptr_t *gKartMarioGroup4[];
-extern uintptr_t *gKartMarioGroup3[];
-extern uintptr_t *gKartMarioGroup2[];
-extern uintptr_t *gKartMarioGroup1[];
-extern uintptr_t *gKartMarioGroup0[];
-
-extern uintptr_t *gKartLuigiGroup8[];
-extern uintptr_t *gKartLuigiGroup7[];
-extern uintptr_t *gKartLuigiGroup6[];
-extern uintptr_t *gKartLuigiGroup5[];
-extern uintptr_t *gKartLuigiGroup4[];
-extern uintptr_t *gKartLuigiGroup3[];
-extern uintptr_t *gKartLuigiGroup2[];
-extern uintptr_t *gKartLuigiGroup1[];
-extern uintptr_t *gKartLuigiGroup0[];
-
-extern uintptr_t *gKartYoshiGroup8[];
-extern uintptr_t *gKartYoshiGroup7[];
-extern uintptr_t *gKartYoshiGroup6[];
-extern uintptr_t *gKartYoshiGroup5[];
-extern uintptr_t *gKartYoshiGroup4[];
-extern uintptr_t *gKartYoshiGroup3[];
-extern uintptr_t *gKartYoshiGroup2[];
-extern uintptr_t *gKartYoshiGroup1[];
-extern uintptr_t *gKartYoshiGroup0[];
-
-extern uintptr_t *gKartToadGroup8[];
-extern uintptr_t *gKartToadGroup7[];
-extern uintptr_t *gKartToadGroup6[];
-extern uintptr_t *gKartToadGroup5[];
-extern uintptr_t *gKartToadGroup4[];
-extern uintptr_t *gKartToadGroup3[];
-extern uintptr_t *gKartToadGroup2[];
-extern uintptr_t *gKartToadGroup1[];
-extern uintptr_t *gKartToadGroup0[];
-
-extern uintptr_t *gKartDKGroup8[];
-extern uintptr_t *gKartDKGroup7[];
-extern uintptr_t *gKartDKGroup6[];
-extern uintptr_t *gKartDKGroup5[];
-extern uintptr_t *gKartDKGroup4[];
-extern uintptr_t *gKartDKGroup3[];
-extern uintptr_t *gKartDKGroup2[];
-extern uintptr_t *gKartDKGroup1[];
-extern uintptr_t *gKartDKGroup0[];
-
-extern uintptr_t *gKartWarioGroup8[];
-extern uintptr_t *gKartWarioGroup7[];
-extern uintptr_t *gKartWarioGroup6[];
-extern uintptr_t *gKartWarioGroup5[];
-extern uintptr_t *gKartWarioGroup4[];
-extern uintptr_t *gKartWarioGroup3[];
-extern uintptr_t *gKartWarioGroup2[];
-extern uintptr_t *gKartWarioGroup1[];
-extern uintptr_t *gKartWarioGroup0[];
-
-extern uintptr_t *gKartPeachGroup8[];
-extern uintptr_t *gKartPeachGroup7[];
-extern uintptr_t *gKartPeachGroup6[];
-extern uintptr_t *gKartPeachGroup5[];
-extern uintptr_t *gKartPeachGroup4[];
-extern uintptr_t *gKartPeachGroup3[];
-extern uintptr_t *gKartPeachGroup2[];
-extern uintptr_t *gKartPeachGroup1[];
-extern uintptr_t *gKartPeachGroup0[];
-
-extern uintptr_t *gKartBowserGroup8[];
-extern uintptr_t *gKartBowserGroup7[];
-extern uintptr_t *gKartBowserGroup6[];
-extern uintptr_t *gKartBowserGroup5[];
-extern uintptr_t *gKartBowserGroup4[];
-extern uintptr_t *gKartBowserGroup3[];
-extern uintptr_t *gKartBowserGroup2[];
-extern uintptr_t *gKartBowserGroup1[];
-extern uintptr_t *gKartBowserGroup0[];
-
-extern uintptr_t *gKartMarioGroup17[];
-extern uintptr_t *gKartMarioGroup16[];
-extern uintptr_t *gKartMarioGroup15[];
-extern uintptr_t *gKartMarioGroup14[];
-extern uintptr_t *gKartMarioGroup13[];
-extern uintptr_t *gKartMarioGroup12[];
-extern uintptr_t *gKartMarioGroup11[];
-extern uintptr_t *gKartMarioGroup10[];
-extern uintptr_t *gKartMarioGroup9[];
-
-extern uintptr_t *gKartLuigiGroup17[];
-extern uintptr_t *gKartLuigiGroup16[];
-extern uintptr_t *gKartLuigiGroup15[];
-extern uintptr_t *gKartLuigiGroup14[];
-extern uintptr_t *gKartLuigiGroup13[];
-extern uintptr_t *gKartLuigiGroup12[];
-extern uintptr_t *gKartLuigiGroup11[];
-extern uintptr_t *gKartLuigiGroup10[];
-extern uintptr_t *gKartLuigiGroup9[];
-
-extern uintptr_t *gKartYoshiGroup17[];
-extern uintptr_t *gKartYoshiGroup16[];
-extern uintptr_t *gKartYoshiGroup15[];
-extern uintptr_t *gKartYoshiGroup14[];
-extern uintptr_t *gKartYoshiGroup13[];
-extern uintptr_t *gKartYoshiGroup12[];
-extern uintptr_t *gKartYoshiGroup11[];
-extern uintptr_t *gKartYoshiGroup10[];
-extern uintptr_t *gKartYoshiGroup9[];
-
-extern uintptr_t *gKartToadGroup17[];
-extern uintptr_t *gKartToadGroup16[];
-extern uintptr_t *gKartToadGroup15[];
-extern uintptr_t *gKartToadGroup14[];
-extern uintptr_t *gKartToadGroup13[];
-extern uintptr_t *gKartToadGroup12[];
-extern uintptr_t *gKartToadGroup11[];
-extern uintptr_t *gKartToadGroup10[];
-extern uintptr_t *gKartToadGroup9[];
-
-extern uintptr_t *gKartDKGroup17[];
-extern uintptr_t *gKartDKGroup16[];
-extern uintptr_t *gKartDKGroup15[];
-extern uintptr_t *gKartDKGroup14[];
-extern uintptr_t *gKartDKGroup13[];
-extern uintptr_t *gKartDKGroup12[];
-extern uintptr_t *gKartDKGroup11[];
-extern uintptr_t *gKartDKGroup10[];
-extern uintptr_t *gKartDKGroup9[];
-
-extern uintptr_t *gKartWarioGroup17[];
-extern uintptr_t *gKartWarioGroup16[];
-extern uintptr_t *gKartWarioGroup15[];
-extern uintptr_t *gKartWarioGroup14[];
-extern uintptr_t *gKartWarioGroup13[];
-extern uintptr_t *gKartWarioGroup12[];
-extern uintptr_t *gKartWarioGroup11[];
-extern uintptr_t *gKartWarioGroup10[];
-extern uintptr_t *gKartWarioGroup9[];
-
-extern uintptr_t *gKartPeachGroup17[];
-extern uintptr_t *gKartPeachGroup16[];
-extern uintptr_t *gKartPeachGroup15[];
-extern uintptr_t *gKartPeachGroup14[];
-extern uintptr_t *gKartPeachGroup13[];
-extern uintptr_t *gKartPeachGroup12[];
-extern uintptr_t *gKartPeachGroup11[];
-extern uintptr_t *gKartPeachGroup10[];
-extern uintptr_t *gKartPeachGroup9[];
-
-extern uintptr_t *gKartBowserGroup17[];
-extern uintptr_t *gKartBowserGroup16[];
-extern uintptr_t *gKartBowserGroup15[];
-extern uintptr_t *gKartBowserGroup14[];
-extern uintptr_t *gKartBowserGroup13[];
-extern uintptr_t *gKartBowserGroup12[];
-extern uintptr_t *gKartBowserGroup11[];
-extern uintptr_t *gKartBowserGroup10[];
-extern uintptr_t *gKartBowserGroup9[];
-
-
+#include "code_80027040.h"
 
 uintptr_t **gKartMarioTable0[] = {
     gKartMarioGroup8, gKartMarioGroup7, gKartMarioGroup6,
@@ -303,31 +124,26 @@ uintptr_t ***gKartTextureTable1[] = {
  * @param arg4 First buffer index always zero.
  **/
 void func_80027040(Player *player, s8 arg1, s8 arg2, s8 arg3, s8 arg4) {
-
-    s32 temp;
-    if (((((((player->unk_0BC & 0x80) == 0x80) || ((player->unk_0BC & 0x40) == 0x40)) || ((player->unk_0BC & 0x80000) == 0x80000)) || 
-        ((player->unk_0BC & 0x800000) == 0x800000)) || ((player->unk_0BC & 0x20000) == 0x20000)) || ((player->unk_044 & 0x800) != 0))
-    {
-
+    s32 temp = player->unk_0BC;
+    if (((temp & 0x80) == 0x80) || ((temp & 0x40) == 0x40) || ((temp & 0x80000) == 0x80000) || ((temp & 0x800000) == 0x800000) || ((temp & 0x20000) == 0x20000) || ((player->unk_044 & 0x800) != 0)) {
         if (player->unk_244[arg2] != 0) {
-            osInvalDCache(&D_802DFB80[arg4][arg3][arg1 * 0x920], D_800DDEB0[player->characterId]);
-            osPiStartDma(&gDmaIoMesg, 0, 0, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(gKartTextureTable1[player->characterId][player->unk_24C[arg2]][player->unk_244[arg2]])], &D_802DFB80[arg4][arg3][arg1 * 0x920], D_800DDEB0[player->characterId], &gDmaMesgQueue);
+            osInvalDCache(&D_802DFB80[arg4][arg3][arg1], D_800DDEB0[player->characterId]);
+            osPiStartDma(&gDmaIoMesg, OS_MESG_PRI_NORMAL, OS_READ, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(gKartTextureTable1[player->characterId][player->unk_24C[arg2]][player->unk_244[arg2]])], &D_802DFB80[arg4][arg3][arg1], D_800DDEB0[player->characterId], &gDmaMesgQueue);
             osRecvMesg(&gDmaMesgQueue, &gMainReceivedMesg, OS_MESG_BLOCK);
         } else {
-            osInvalDCache(&D_802DFB80[arg4][arg3][arg1 * 0x920], D_800DDEB0[player->characterId]);
-            osPiStartDma(&gDmaIoMesg, 0, 0, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(gKartTextureTable0[player->characterId][player->unk_24C[arg2]][player->unk_244[arg2]])],  &D_802DFB80[arg4][arg3][arg1 * 0x920], D_800DDEB0[player->characterId], &gDmaMesgQueue);
+            osInvalDCache(&D_802DFB80[arg4][arg3][arg1], D_800DDEB0[player->characterId]);
+            osPiStartDma(&gDmaIoMesg, OS_MESG_PRI_NORMAL, OS_READ, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(gKartTextureTable0[player->characterId][player->unk_24C[arg2]][player->unk_244[arg2]])], &D_802DFB80[arg4][arg3][arg1], D_800DDEB0[player->characterId], &gDmaMesgQueue);
             osRecvMesg(&gDmaMesgQueue, &gMainReceivedMesg, OS_MESG_BLOCK);
         }
-    } else if (((((player->unk_0BC & 0x400) == 0x400) || ((player->unk_0BC & 0x1000000) == 0x1000000)) ||
-        ((player->unk_0BC & 0x2000000) == 0x2000000)) || ((player->unk_0BC & 0x10000) == 0x10000))
-    {
-
-        osInvalDCache(&D_802DFB80[arg4][arg3][arg1 * 0x920], 0x780U);
-        osPiStartDma(&gDmaIoMesg, 0, 0, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(gKartTextureGroup18s[player->characterId][player->unk_0A8 >> 8])], &D_802DFB80[arg4][arg3][arg1 * 0x920], 0x900U, &gDmaMesgQueue);
+    } else if (((temp & 0x400) == 0x400) || ((temp & 0x01000000) == 0x01000000) || ((temp & 0x02000000) == 0x02000000) || ((temp & 0x10000) == 0x10000)) {
+        osInvalDCache(&D_802DFB80[arg4][arg3][arg1], 0x780U);
+        // I think there's something off with the "player->unk_0A8 >> 8"
+        // I don't like that right-shift
+        osPiStartDma(&gDmaIoMesg, OS_MESG_PRI_NORMAL, OS_READ, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(gKartTextureGroup18s[player->characterId][player->unk_0A8 >> 8])], &D_802DFB80[arg4][arg3][arg1], 0x900, &gDmaMesgQueue);
         osRecvMesg(&gDmaMesgQueue, &gMainReceivedMesg, OS_MESG_BLOCK);
     } else {
-        osInvalDCache(&D_802DFB80[arg4][arg3][arg1 * 0x920], D_800DDEB0[player->characterId]);
-        osPiStartDma(&gDmaIoMesg, 0, 0, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(gKartTextureTable0[player->characterId][player->unk_24C[arg2]][player->unk_244[arg2]])], &D_802DFB80[arg4][arg3][arg1 * 0x920], D_800DDEB0[player->characterId], &gDmaMesgQueue);
+        osInvalDCache(&D_802DFB80[arg4][arg3][arg1], D_800DDEB0[player->characterId]);
+        osPiStartDma(&gDmaIoMesg, OS_MESG_PRI_NORMAL, OS_READ, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(gKartTextureTable0[player->characterId][player->unk_24C[arg2]][player->unk_244[arg2]])], &D_802DFB80[arg4][arg3][arg1], D_800DDEB0[player->characterId], &gDmaMesgQueue);
         osRecvMesg(&gDmaMesgQueue, &gMainReceivedMesg, OS_MESG_BLOCK);
     }
 }
@@ -335,47 +151,43 @@ void func_80027040(Player *player, s8 arg1, s8 arg2, s8 arg3, s8 arg4) {
 void func_80027560(Player *player, s8 arg1, s8 arg2, s8 arg3, s8 arg4) {
     s32 temp = player->unk_0BC;
 
-    if (((temp & 0x80) == 0x80) || ((temp & 0x40) == 0x40) || ((temp & 0x80000) == 0x80000) ||
-        ((temp & 0x800000) == 0x800000) || ((temp & 0x20000) == 0x20000) || ((player->unk_044 & 0x800) != 0))
+    if (((temp & 0x80) == 0x80) || ((temp & 0x40) == 0x40) || ((temp & 0x80000) == 0x80000) || ((temp & 0x800000) == 0x800000) || ((temp & 0x20000) == 0x20000) || ((player->unk_044 & 0x800) != 0))
     {
-
         if (player->unk_244[arg2] != 0) {
-            osInvalDCache(&D_802DFB80[arg4][arg3][arg1 * 0x920], D_800DDEB0[player->characterId]);
-            osPiStartDma(&gDmaIoMesg, 0, 0, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(gKartTextureTable1[player->characterId][player->unk_24C[arg2]][player->unk_244[arg2]])], &D_802DFB80[arg4][arg3][arg1 * 0x920], D_800DDEB0[player->characterId], &gDmaMesgQueue);
+            osInvalDCache(&D_802DFB80[arg4][arg3][arg1], D_800DDEB0[player->characterId]);
+            osPiStartDma(&gDmaIoMesg, OS_MESG_PRI_NORMAL, OS_READ, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(gKartTextureTable1[player->characterId][player->unk_24C[arg2]][player->unk_244[arg2]])], &D_802DFB80[arg4][arg3][arg1], D_800DDEB0[player->characterId], &gDmaMesgQueue);
         } else {
-            osInvalDCache(&D_802DFB80[arg4][arg3][arg1 * 0x920], D_800DDEB0[player->characterId]);
-            osPiStartDma(&gDmaIoMesg, 0, 0, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(gKartTextureTable0[player->characterId][player->unk_24C[arg2]][player->unk_244[arg2]])], &D_802DFB80[arg4][arg3][arg1 * 0x920], D_800DDEB0[player->characterId], &gDmaMesgQueue);
+            osInvalDCache(&D_802DFB80[arg4][arg3][arg1], D_800DDEB0[player->characterId]);
+            osPiStartDma(&gDmaIoMesg, OS_MESG_PRI_NORMAL, OS_READ, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(gKartTextureTable0[player->characterId][player->unk_24C[arg2]][player->unk_244[arg2]])], &D_802DFB80[arg4][arg3][arg1], D_800DDEB0[player->characterId], &gDmaMesgQueue);
         }
     } else if (((temp & 0x400) == 0x400) || ((temp & 0x01000000) == 0x01000000) || 
         ((temp & 0x02000000) == 0x02000000) || ((temp & 0x10000) == 0x10000))
     {
-        osInvalDCache(&D_802DFB80[arg4][arg3][arg1 * 0x920], 0x780);
-        osPiStartDma(&gDmaIoMesg, 0, 0, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(gKartTextureGroup18s[player->characterId][player->unk_0A8 >> 8])], &D_802DFB80[arg4][arg3][arg1 * 0x920], 0x900, &gDmaMesgQueue);
+        osInvalDCache(&D_802DFB80[arg4][arg3][arg1], 0x780);
+        // I think there's something off with the "player->unk_0A8 >> 8"
+        // I don't like that right-shift
+        osPiStartDma(&gDmaIoMesg, OS_MESG_PRI_NORMAL, OS_READ, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(gKartTextureGroup18s[player->characterId][player->unk_0A8 >> 8])], &D_802DFB80[arg4][arg3][arg1], 0x900, &gDmaMesgQueue);
     } else {
-        osInvalDCache(&D_802DFB80[arg4][arg3][arg1 * 0x920], D_800DDEB0[player->characterId]);
-        osPiStartDma(&gDmaIoMesg, 0, 0, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(gKartTextureTable0[player->characterId][player->unk_24C[arg2]][player->unk_244[arg2]])], &D_802DFB80[arg4][arg3][arg1 * 0x920], D_800DDEB0[player->characterId], &gDmaMesgQueue);
+        osInvalDCache(&D_802DFB80[arg4][arg3][arg1], D_800DDEB0[player->characterId]);
+        osPiStartDma(&gDmaIoMesg, OS_MESG_PRI_NORMAL, OS_READ, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(gKartTextureTable0[player->characterId][player->unk_24C[arg2]][player->unk_244[arg2]])], &D_802DFB80[arg4][arg3][arg1], D_800DDEB0[player->characterId], &gDmaMesgQueue);
     }
 }
 
 void func_80027A20(Player *player, s8 arg1, s8 arg2, s8 arg3) {
-    // @bug: Undefined Behaviour UB
-    // untested fix. [arg1 << 8] may be a fake match.
-    #ifdef AVOID_UB
-    void *temp_s0 = &D_802F1F80[arg3][arg2][0];
-    #else
-    void *temp_s0 = &D_802F1F80[arg3][arg2][arg1 << 8];
-    #endif
-
+    // Weird typecasting is being done here. We define D_802F1F80 as a 3-dimensional u32 array,
+    // but its better to understand it as a 3-dimensional struct_D_802F1F80 array.
+    struct_D_802F1F80 *temp_s0 = &D_802F1F80[arg3][arg2][arg1 << 7];
     switch(gActiveScreenMode) {
-        case 0: case 1:
+        case 0:
+        case 1:
         case 2:
-            osInvalDCache(temp_s0, 0x200);
-            osPiStartDma(&gDmaIoMesg, 0, 0, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(gKartPalettes[player->characterId])], temp_s0, 0x200, &gDmaMesgQueue);
+            osInvalDCache(temp_s0, sizeof(struct_D_802F1F80));
+            osPiStartDma(&gDmaIoMesg, OS_MESG_PRI_NORMAL, OS_READ, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(gKartPalettes[player->characterId])], temp_s0, sizeof(struct_D_802F1F80), &gDmaMesgQueue);
             osRecvMesg(&gDmaMesgQueue, &gMainReceivedMesg, OS_MESG_BLOCK);
             break;
         case 3:
-            osInvalDCache(temp_s0, 0x200);
-            osPiStartDma(&gDmaIoMesg, 0, 0, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(gKartPalettes[player->characterId])], temp_s0, 0x200, &gDmaMesgQueue);
+            osInvalDCache(temp_s0, sizeof(struct_D_802F1F80));
+            osPiStartDma(&gDmaIoMesg, OS_MESG_PRI_NORMAL, OS_READ, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(gKartPalettes[player->characterId])], temp_s0, sizeof(struct_D_802F1F80), &gDmaMesgQueue);
             osRecvMesg(&gDmaMesgQueue, &gMainReceivedMesg, OS_MESG_BLOCK);
             break;
     }
@@ -383,11 +195,11 @@ void func_80027A20(Player *player, s8 arg1, s8 arg2, s8 arg3) {
 
 void func_80027BDC(UNUSED Player *player, s32 arg1, void *vAddr, u16 size) {
     osInvalDCache(vAddr, size);
-    osPiStartDma(&gDmaIoMesg, 0, 0, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(arg1)], vAddr, size, &gDmaMesgQueue);
+    osPiStartDma(&gDmaIoMesg, OS_MESG_PRI_NORMAL, OS_READ, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(arg1)], vAddr, size, &gDmaMesgQueue);
     osRecvMesg(&gDmaMesgQueue, &gMainReceivedMesg, OS_MESG_BLOCK);
 }
 
 void func_80027C74(UNUSED Player *player, s32 arg1, void *vAddr, u16 size) {
     osInvalDCache(vAddr, size);
-    osPiStartDma(&gDmaIoMesg, 0, 0, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(arg1)], vAddr, size, &gDmaMesgQueue);
+    osPiStartDma(&gDmaIoMesg, OS_MESG_PRI_NORMAL, OS_READ, &_kart_texturesSegmentRomStart[SEGMENT_OFFSET(arg1)], vAddr, size, &gDmaMesgQueue);
 }