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authorBen Skeggs <skeggsb@gmail.com>2007-06-24 18:56:01 +1000
committerBen Skeggs <skeggsb@gmail.com>2007-06-24 18:56:01 +1000
commitf2e64d527699751d6b64698495ae1d48eeee6cf7 (patch)
tree09e8756df74b8772e86313c1e4ec57d84fd54a4f
parent0afb3b518e1ece820b01f3eea64b25cff01c97bc (diff)
nouveau: NV4X PFIFO engtab functions
-rw-r--r--linux-core/Makefile.kernel1
l---------linux-core/nv40_fifo.c1
-rw-r--r--shared-core/nouveau_drv.h10
-rw-r--r--shared-core/nouveau_fifo.c100
-rw-r--r--shared-core/nouveau_reg.h4
-rw-r--r--shared-core/nouveau_state.c4
-rw-r--r--shared-core/nv40_fifo.c193
7 files changed, 237 insertions, 76 deletions
diff --git a/linux-core/Makefile.kernel b/linux-core/Makefile.kernel
index 6f5b021b..3e78b6d7 100644
--- a/linux-core/Makefile.kernel
+++ b/linux-core/Makefile.kernel
@@ -25,6 +25,7 @@ nouveau-objs := nouveau_drv.o nouveau_state.o nouveau_fifo.o nouveau_mem.o \
nv04_timer.o \
nv04_mc.o nv40_mc.o \
nv04_fb.o nv10_fb.o nv40_fb.o \
+ nv40_fifo.o \
nv04_graph.o nv10_graph.o nv20_graph.o nv30_graph.o \
nv40_graph.o
radeon-objs := radeon_drv.o radeon_cp.o radeon_state.o radeon_mem.o radeon_irq.o r300_cmdbuf.o
diff --git a/linux-core/nv40_fifo.c b/linux-core/nv40_fifo.c
new file mode 120000
index 00000000..cc71e7a4
--- /dev/null
+++ b/linux-core/nv40_fifo.c
@@ -0,0 +1 @@
+../shared-core/nv40_fifo.c \ No newline at end of file
diff --git a/shared-core/nouveau_drv.h b/shared-core/nouveau_drv.h
index da604d37..7c29a882 100644
--- a/shared-core/nouveau_drv.h
+++ b/shared-core/nouveau_drv.h
@@ -100,7 +100,7 @@ struct nouveau_config {
} cmdbuf;
};
-struct nouveau_engine_func {
+typedef struct nouveau_engine_func {
struct {
int (*init)(drm_device_t *dev);
void (*takedown)(drm_device_t *dev);
@@ -135,7 +135,7 @@ struct nouveau_engine_func {
int (*load_context)(drm_device_t *, int channel);
int (*save_context)(drm_device_t *, int channel);
} fifo;
-};
+} nouveau_engine_func_t;
typedef struct drm_nouveau_private {
/* the card type, takes NV_* as values */
@@ -255,6 +255,12 @@ extern void nv10_fb_takedown(drm_device_t *dev);
extern int nv40_fb_init(drm_device_t *dev);
extern void nv40_fb_takedown(drm_device_t *dev);
+/* nv40_fifo.c */
+extern int nv40_fifo_create_context(drm_device_t *, int channel);
+extern void nv40_fifo_destroy_context(drm_device_t *, int channel);
+extern int nv40_fifo_load_context(drm_device_t *, int channel);
+extern int nv40_fifo_save_context(drm_device_t *, int channel);
+
/* nv04_graph.c */
extern void nouveau_nv04_context_switch(drm_device_t *dev);
extern int nv04_graph_init(drm_device_t *dev);
diff --git a/shared-core/nouveau_fifo.c b/shared-core/nouveau_fifo.c
index 5bbd1c02..50f094b9 100644
--- a/shared-core/nouveau_fifo.c
+++ b/shared-core/nouveau_fifo.c
@@ -358,64 +358,6 @@ static void nouveau_nv10_context_save(drm_device_t *dev)
#endif
#undef RAMFC_WR
-#define RAMFC_WR(offset, val) NV_WRITE(fifoctx + NV40_RAMFC_##offset, (val))
-static void nouveau_nv40_context_init(drm_device_t *dev, int channel)
-{
- drm_nouveau_private_t *dev_priv = dev->dev_private;
- struct nouveau_fifo *chan = &dev_priv->fifos[channel];
- uint32_t fifoctx, cb_inst, grctx_inst;
- int i;
-
- cb_inst = nouveau_chip_instance_get(dev, chan->cmdbuf_obj->instance);
- grctx_inst = nouveau_chip_instance_get(dev, chan->ramin_grctx);
- fifoctx = NV_RAMIN + dev_priv->ramfc_offset + channel*128;
- for (i=0;i<128;i+=4)
- NV_WRITE(fifoctx + i, 0);
-
- /* Fill entries that are seen filled in dumps of nvidia driver just
- * after channel's is put into DMA mode
- */
- RAMFC_WR(DMA_INSTANCE , cb_inst);
- RAMFC_WR(DMA_FETCH , NV_PFIFO_CACHE1_DMA_FETCH_TRIG_128_BYTES |
- NV_PFIFO_CACHE1_DMA_FETCH_SIZE_128_BYTES |
- NV_PFIFO_CACHE1_DMA_FETCH_MAX_REQS_8 |
-#ifdef __BIG_ENDIAN
- NV_PFIFO_CACHE1_BIG_ENDIAN |
-#endif
- 0x30000000 /* no idea.. */);
- RAMFC_WR(GRCTX_INSTANCE, grctx_inst);
- RAMFC_WR(DMA_TIMESLICE , 0x0001FFFF);
-}
-
-static void nouveau_nv40_context_save(drm_device_t *dev)
-{
- drm_nouveau_private_t *dev_priv = dev->dev_private;
- uint32_t fifoctx;
- int channel;
-
- channel = NV_READ(NV03_PFIFO_CACHE1_PUSH1) & (nouveau_fifo_number(dev)-1);
- fifoctx = NV_RAMIN + dev_priv->ramfc_offset + channel*128;
-
- RAMFC_WR(DMA_PUT , NV_READ(NV04_PFIFO_CACHE1_DMA_PUT));
- RAMFC_WR(DMA_GET , NV_READ(NV04_PFIFO_CACHE1_DMA_GET));
- RAMFC_WR(REF_CNT , NV_READ(NV10_PFIFO_CACHE1_REF_CNT));
- RAMFC_WR(DMA_INSTANCE , NV_READ(NV04_PFIFO_CACHE1_DMA_INSTANCE));
- RAMFC_WR(DMA_DCOUNT , NV_READ(NV10_PFIFO_CACHE1_DMA_DCOUNT));
- RAMFC_WR(DMA_STATE , NV_READ(NV04_PFIFO_CACHE1_DMA_STATE));
- RAMFC_WR(DMA_FETCH , NV_READ(NV04_PFIFO_CACHE1_DMA_FETCH));
- RAMFC_WR(ENGINE , NV_READ(NV04_PFIFO_CACHE1_ENGINE));
- RAMFC_WR(PULL1_ENGINE , NV_READ(NV04_PFIFO_CACHE1_PULL1));
- RAMFC_WR(ACQUIRE_VALUE , NV_READ(NV10_PFIFO_CACHE1_ACQUIRE_VALUE));
- RAMFC_WR(ACQUIRE_TIMESTAMP, NV_READ(NV10_PFIFO_CACHE1_ACQUIRE_TIMESTAMP));
- RAMFC_WR(ACQUIRE_TIMEOUT , NV_READ(NV10_PFIFO_CACHE1_ACQUIRE_TIMEOUT));
- RAMFC_WR(SEMAPHORE , NV_READ(NV10_PFIFO_CACHE1_SEMAPHORE));
- RAMFC_WR(DMA_SUBROUTINE , NV_READ(NV04_PFIFO_CACHE1_DMA_GET));
- RAMFC_WR(GRCTX_INSTANCE , NV_READ(NV40_PFIFO_GRCTX_INSTANCE));
- RAMFC_WR(DMA_TIMESLICE , NV_READ(NV04_PFIFO_DMA_TIMESLICE) & 0x1FFFF);
- RAMFC_WR(UNK_40 , NV_READ(NV40_PFIFO_UNK32E4));
-}
-#undef RAMFC_WR
-
/* This function should load values from RAMFC into PFIFO, but for now
* it just clobbers PFIFO with what nouveau_fifo_alloc used to setup
* unconditionally.
@@ -461,6 +403,7 @@ static int nouveau_fifo_alloc(drm_device_t* dev, int *chan_ret, DRMFILE filp)
{
int ret;
drm_nouveau_private_t *dev_priv = dev->dev_private;
+ nouveau_engine_func_t *engine = &dev_priv->Engine;
struct nouveau_fifo *chan;
int channel;
@@ -560,14 +503,17 @@ static int nouveau_fifo_alloc(drm_device_t* dev, int *chan_ret, DRMFILE filp)
case NV_30:
nouveau_nv30_context_init(dev, channel);
break;
- case NV_40:
- case NV_44:
- nouveau_nv40_context_init(dev, channel);
- break;
default:
- DRM_ERROR("fifoctx: unknown card type\n");
- nouveau_fifo_free(dev, channel);
- return DRM_ERR(EINVAL);
+ if (!engine->fifo.create_context) {
+ DRM_ERROR("fifo.create_context == NULL\n");
+ return DRM_ERR(EINVAL);
+ }
+
+ ret = engine->fifo.create_context(dev, channel);
+ if (ret) {
+ nouveau_fifo_free(dev, channel);
+ return ret;
+ }
}
/* enable the fifo dma operation */
@@ -581,7 +527,11 @@ static int nouveau_fifo_alloc(drm_device_t* dev, int *chan_ret, DRMFILE filp)
* other case, the GPU will handle this when it switches contexts.
*/
if (dev_priv->fifo_alloc_count == 0) {
- nouveau_fifo_context_restore(dev, channel);
+ if (engine->fifo.load_context)
+ engine->fifo.load_context(dev, channel);
+ else
+ nouveau_fifo_context_restore(dev, channel);
+
if (dev_priv->card_type >= NV_30) {
uint32_t inst;
@@ -615,6 +565,7 @@ static int nouveau_fifo_alloc(drm_device_t* dev, int *chan_ret, DRMFILE filp)
void nouveau_fifo_free(drm_device_t* dev, int channel)
{
drm_nouveau_private_t *dev_priv = dev->dev_private;
+ nouveau_engine_func_t *engine = &dev_priv->Engine;
struct nouveau_fifo *chan = &dev_priv->fifos[channel];
int i;
int ctx_size = nouveau_fifo_ctx_size(dev);
@@ -629,12 +580,17 @@ void nouveau_fifo_free(drm_device_t* dev, int channel)
// FIXME XXX needs more code
/* Clean RAMFC */
- for (i=0;i<ctx_size;i+=4) {
- DRM_DEBUG("RAMFC +%02x: 0x%08x\n", i, NV_READ(NV_RAMIN +
- dev_priv->ramfc_offset +
- channel*ctx_size + i));
- NV_WRITE(NV_RAMIN + dev_priv->ramfc_offset +
- channel*ctx_size + i, 0);
+ if (engine->fifo.destroy_context)
+ engine->fifo.destroy_context(dev, channel);
+ else {
+ for (i=0;i<ctx_size;i+=4) {
+ DRM_DEBUG("RAMFC +%02x: 0x%08x\n",
+ i, NV_READ(NV_RAMIN +
+ dev_priv->ramfc_offset +
+ channel*ctx_size + i));
+ NV_WRITE(NV_RAMIN + dev_priv->ramfc_offset +
+ channel*ctx_size + i, 0);
+ }
}
/* Cleanup PGRAPH state */
diff --git a/shared-core/nouveau_reg.h b/shared-core/nouveau_reg.h
index ea4a2f6b..07c54a92 100644
--- a/shared-core/nouveau_reg.h
+++ b/shared-core/nouveau_reg.h
@@ -462,6 +462,6 @@
#define NV40_RAMFC_UNK_40 0x40
#define NV40_RAMFC_UNK_44 0x44
#define NV40_RAMFC_UNK_48 0x48
-#define NV40_RAMFC_2088 0x4C
-#define NV40_RAMFC_3300 0x50
+#define NV40_RAMFC_UNK_4C 0x4C
+#define NV40_RAMFC_UNK_50 0x50
diff --git a/shared-core/nouveau_state.c b/shared-core/nouveau_state.c
index 592797c3..42860e9a 100644
--- a/shared-core/nouveau_state.c
+++ b/shared-core/nouveau_state.c
@@ -138,6 +138,10 @@ static int nouveau_init_engine_ptrs(drm_device_t *dev)
engine->graph.takedown = nv40_graph_takedown;
engine->fifo.init = nouveau_fifo_init;
engine->fifo.takedown = nouveau_stub_takedown;
+ engine->fifo.create_context = nv40_fifo_create_context;
+ engine->fifo.destroy_context = nv40_fifo_destroy_context;
+ engine->fifo.load_context = nv40_fifo_load_context;
+ engine->fifo.save_context = nv40_fifo_save_context;
break;
case 0x50:
default:
diff --git a/shared-core/nv40_fifo.c b/shared-core/nv40_fifo.c
new file mode 100644
index 00000000..b67a7e58
--- /dev/null
+++ b/shared-core/nv40_fifo.c
@@ -0,0 +1,193 @@
+/*
+ * Copyright (C) 2007 Ben Skeggs.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include "drmP.h"
+#include "nouveau_drv.h"
+#include "nouveau_drm.h"
+
+#define RAMFC_WR(offset, val) NV_WRITE(fifoctx + NV40_RAMFC_##offset, (val))
+#define RAMFC_RD(offset) NV_READ (fifoctx + NV40_RAMFC_##offset)
+
+int
+nv40_fifo_create_context(drm_device_t *dev, int channel)
+{
+ drm_nouveau_private_t *dev_priv = dev->dev_private;
+ struct nouveau_fifo *chan = &dev_priv->fifos[channel];
+ uint32_t fifoctx, grctx, pushbuf;
+ int i;
+
+ fifoctx = NV_RAMIN + dev_priv->ramfc_offset + channel*128;
+ for (i=0;i<128;i+=4)
+ NV_WRITE(fifoctx + i, 0);
+
+ grctx = nouveau_chip_instance_get(dev, chan->ramin_grctx);
+ pushbuf = nouveau_chip_instance_get(dev, chan->cmdbuf_obj->instance);
+
+ /* Fill entries that are seen filled in dumps of nvidia driver just
+ * after channel's is put into DMA mode
+ */
+ RAMFC_WR(DMA_PUT , chan->pushbuf_base);
+ RAMFC_WR(DMA_GET , chan->pushbuf_base);
+ RAMFC_WR(DMA_INSTANCE , pushbuf);
+ RAMFC_WR(DMA_FETCH , NV_PFIFO_CACHE1_DMA_FETCH_TRIG_128_BYTES |
+ NV_PFIFO_CACHE1_DMA_FETCH_SIZE_128_BYTES |
+ NV_PFIFO_CACHE1_DMA_FETCH_MAX_REQS_8 |
+#ifdef __BIG_ENDIAN
+ NV_PFIFO_CACHE1_BIG_ENDIAN |
+#endif
+ 0x30000000 /* no idea.. */);
+ RAMFC_WR(DMA_SUBROUTINE, 0);
+ RAMFC_WR(GRCTX_INSTANCE, grctx);
+ RAMFC_WR(DMA_TIMESLICE , 0x0001FFFF);
+
+ return 0;
+}
+
+void
+nv40_fifo_destroy_context(drm_device_t *dev, int channel)
+{
+ drm_nouveau_private_t *dev_priv = dev->dev_private;
+ uint32_t fifoctx;
+ int i;
+
+ fifoctx = NV_RAMIN + dev_priv->ramfc_offset + channel*128;
+ for (i=0;i<128;i+=4)
+ NV_WRITE(fifoctx + i, 0);
+}
+
+int
+nv40_fifo_load_context(drm_device_t *dev, int channel)
+{
+ drm_nouveau_private_t *dev_priv = dev->dev_private;
+ uint32_t fifoctx;
+ uint32_t tmp, tmp2;
+
+ fifoctx = NV_RAMIN + dev_priv->ramfc_offset + channel*128;
+
+ NV_WRITE(NV04_PFIFO_CACHE1_DMA_GET , RAMFC_RD(DMA_GET));
+ NV_WRITE(NV04_PFIFO_CACHE1_DMA_PUT , RAMFC_RD(DMA_PUT));
+ NV_WRITE(NV10_PFIFO_CACHE1_REF_CNT , RAMFC_RD(REF_CNT));
+ NV_WRITE(NV04_PFIFO_CACHE1_DMA_INSTANCE , RAMFC_RD(DMA_INSTANCE));
+ NV_WRITE(NV10_PFIFO_CACHE1_DMA_DCOUNT , RAMFC_RD(DMA_DCOUNT));
+ NV_WRITE(NV04_PFIFO_CACHE1_DMA_STATE , RAMFC_RD(DMA_STATE));
+
+ /* No idea what 0x2058 is.. */
+ tmp = RAMFC_RD(DMA_FETCH);
+ tmp2 = NV_READ(0x2058) & 0xFFF;
+ tmp2 |= (tmp & 0x30000000);
+ NV_WRITE(0x2058, tmp2);
+ tmp &= ~0x30000000;
+ NV_WRITE(NV04_PFIFO_CACHE1_DMA_FETCH , tmp);
+
+ NV_WRITE(NV04_PFIFO_CACHE1_ENGINE , RAMFC_RD(ENGINE));
+ NV_WRITE(NV04_PFIFO_CACHE1_PULL1 , RAMFC_RD(PULL1_ENGINE));
+ NV_WRITE(NV10_PFIFO_CACHE1_ACQUIRE_VALUE , RAMFC_RD(ACQUIRE_VALUE));
+ NV_WRITE(NV10_PFIFO_CACHE1_ACQUIRE_TIMESTAMP, RAMFC_RD(ACQUIRE_TIMESTAMP));
+ NV_WRITE(NV10_PFIFO_CACHE1_ACQUIRE_TIMEOUT , RAMFC_RD(ACQUIRE_TIMEOUT));
+ NV_WRITE(NV10_PFIFO_CACHE1_SEMAPHORE , RAMFC_RD(SEMAPHORE));
+ NV_WRITE(NV10_PFIFO_CACHE1_DMA_SUBROUTINE , RAMFC_RD(DMA_SUBROUTINE));
+ NV_WRITE(NV40_PFIFO_GRCTX_INSTANCE , RAMFC_RD(GRCTX_INSTANCE));
+ NV_WRITE(0x32e4, RAMFC_RD(UNK_40));
+ /* NVIDIA does this next line twice... */
+ NV_WRITE(0x32e8, RAMFC_RD(UNK_44));
+ NV_WRITE(0x2088, RAMFC_RD(UNK_4C));
+ NV_WRITE(0x3300, RAMFC_RD(UNK_50));
+
+ /* not sure what part is PUT, and which is GET.. never seen a non-zero
+ * value appear in a mmio-trace yet..
+ */
+#if 0
+ tmp = NV_READ(UNK_84);
+ NV_WRITE(NV_PFIFO_CACHE1_GET, tmp ???);
+ NV_WRITE(NV_PFIFO_CACHE1_PUT, tmp ???);
+#endif
+
+ /* Don't clobber the TIMEOUT_ENABLED flag when restoring from RAMFC */
+ tmp = NV_READ(NV04_PFIFO_DMA_TIMESLICE) & ~0x1FFFF;
+ tmp |= RAMFC_RD(DMA_TIMESLICE) & 0x1FFFF;
+ NV_WRITE(NV04_PFIFO_DMA_TIMESLICE, tmp);
+
+ /* Set channel active, and in DMA mode */
+ NV_WRITE(NV03_PFIFO_CACHE1_PUSH1 , 0x00010000 | channel);
+ /* Reset DMA_CTL_AT_INFO to INVALID */
+ tmp = NV_READ(NV04_PFIFO_CACHE1_DMA_CTL) & ~(1<<31);
+ NV_WRITE(NV04_PFIFO_CACHE1_DMA_CTL, tmp);
+
+ return 0;
+}
+
+int
+nv40_fifo_save_context(drm_device_t *dev, int channel)
+{
+ drm_nouveau_private_t *dev_priv = dev->dev_private;
+ uint32_t fifoctx;
+ uint32_t tmp;
+
+ fifoctx = NV_RAMIN + dev_priv->ramfc_offset + channel*128;
+
+ RAMFC_WR(DMA_PUT , NV_READ(NV04_PFIFO_CACHE1_DMA_PUT));
+ RAMFC_WR(DMA_GET , NV_READ(NV04_PFIFO_CACHE1_DMA_GET));
+ RAMFC_WR(REF_CNT , NV_READ(NV10_PFIFO_CACHE1_REF_CNT));
+ RAMFC_WR(DMA_INSTANCE , NV_READ(NV04_PFIFO_CACHE1_DMA_INSTANCE));
+ RAMFC_WR(DMA_DCOUNT , NV_READ(NV10_PFIFO_CACHE1_DMA_DCOUNT));
+ RAMFC_WR(DMA_STATE , NV_READ(NV04_PFIFO_CACHE1_DMA_STATE));
+
+ tmp = NV_READ(NV04_PFIFO_CACHE1_DMA_FETCH);
+ tmp |= NV_READ(0x2058) & 0x30000000;
+ RAMFC_WR(DMA_FETCH , tmp);
+
+ RAMFC_WR(ENGINE , NV_READ(NV04_PFIFO_CACHE1_ENGINE));
+ RAMFC_WR(PULL1_ENGINE , NV_READ(NV04_PFIFO_CACHE1_PULL1));
+ RAMFC_WR(ACQUIRE_VALUE , NV_READ(NV10_PFIFO_CACHE1_ACQUIRE_VALUE));
+ tmp = NV_READ(NV10_PFIFO_CACHE1_ACQUIRE_TIMESTAMP);
+ RAMFC_WR(ACQUIRE_TIMESTAMP, tmp);
+ RAMFC_WR(ACQUIRE_TIMEOUT , NV_READ(NV10_PFIFO_CACHE1_ACQUIRE_TIMEOUT));
+ RAMFC_WR(SEMAPHORE , NV_READ(NV10_PFIFO_CACHE1_SEMAPHORE));
+
+ /* NVIDIA read 0x3228 first, then write DMA_GET here.. maybe something
+ * more involved depending on the value of 0x3228?
+ */
+ RAMFC_WR(DMA_SUBROUTINE , NV_READ(NV04_PFIFO_CACHE1_DMA_GET));
+
+ RAMFC_WR(GRCTX_INSTANCE , NV_READ(NV40_PFIFO_GRCTX_INSTANCE));
+
+ /* No idea what the below is for exactly, ripped from a mmio-trace */
+ RAMFC_WR(UNK_40 , NV_READ(NV40_PFIFO_UNK32E4));
+
+ /* NVIDIA do this next line twice.. bug? */
+ RAMFC_WR(UNK_44 , NV_READ(0x32e8));
+ RAMFC_WR(UNK_4C , NV_READ(0x2088));
+ RAMFC_WR(UNK_50 , NV_READ(0x3300));
+
+#if 0 /* no real idea which is PUT/GET in UNK_48.. */
+ tmp = NV_READ(NV04_PFIFO_CACHE1_GET);
+ tmp |= (NV_READ(NV04_PFIFO_CACHE1_PUT) << 16);
+ RAMFC_WR(UNK_48 , tmp);
+#endif
+
+ return 0;
+}
+