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authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/SLOF/slof/helpers.c
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/SLOF/slof/helpers.c')
-rw-r--r--qemu/roms/SLOF/slof/helpers.c136
1 files changed, 136 insertions, 0 deletions
diff --git a/qemu/roms/SLOF/slof/helpers.c b/qemu/roms/SLOF/slof/helpers.c
new file mode 100644
index 000000000..d7c1888b4
--- /dev/null
+++ b/qemu/roms/SLOF/slof/helpers.c
@@ -0,0 +1,136 @@
+/******************************************************************************
+ * Copyright (c) 2007, 2012, 2013 IBM Corporation
+ * All rights reserved.
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Contributors:
+ * IBM Corporation - initial implementation
+ *****************************************************************************/
+/*
+ * All functions concerning interface to slof
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <cpu.h>
+#include "helpers.h"
+#include "paflof.h"
+
+/**
+ * get msec-timer value
+ * access to HW register
+ * overrun will occur if boot exceeds 1.193 hours (49 days)
+ *
+ * @param -
+ * @return actual timer value in ms as 32bit
+ */
+uint32_t SLOF_GetTimer(void)
+{
+ forth_eval("get-msecs");
+ return (uint32_t) forth_pop();
+}
+
+void SLOF_msleep(uint32_t time)
+{
+ time = SLOF_GetTimer() + time;
+ while (time > SLOF_GetTimer())
+ cpu_relax();
+}
+
+void SLOF_usleep(uint32_t time)
+{
+ forth_push(time);
+ forth_eval("us");
+}
+
+void *SLOF_dma_alloc(long size)
+{
+ forth_push(size);
+ forth_eval("dma-alloc");
+ return (void *)forth_pop();
+}
+
+void SLOF_dma_free(void *virt, long size)
+{
+ forth_push((long)virt);
+ forth_push(size);
+ forth_eval("dma-free");
+}
+
+void *SLOF_alloc_mem(long size)
+{
+ forth_push(size);
+ forth_eval("alloc-mem");
+ return (void *)forth_pop();
+}
+
+void *SLOF_alloc_mem_aligned(long size, long align)
+{
+ unsigned long addr = (unsigned long)SLOF_alloc_mem(size + align - 1);
+ addr = addr + align - 1;
+ addr = addr & ~(align - 1);
+
+ return (void *)addr;
+}
+
+void SLOF_free_mem(void *addr, long size)
+{
+ forth_push((long)addr);
+ forth_push(size);
+ forth_eval("free-mem");
+}
+
+long SLOF_dma_map_in(void *virt, long size, int cacheable)
+{
+ forth_push((long)virt);
+ forth_push(size);
+ forth_push(cacheable);
+ forth_eval("dma-map-in");
+ return forth_pop();
+}
+
+void SLOF_dma_map_out(long phys, void *virt, long size)
+{
+ forth_push((long)virt);
+ forth_push((long)phys);
+ forth_push(size);
+ forth_eval("dma-map-out");
+}
+
+long SLOF_pci_config_read32(long offset)
+{
+ forth_push(offset);
+ forth_eval("config-l@");
+ return forth_pop();
+}
+
+long SLOF_pci_config_read16(long offset)
+{
+ forth_push(offset);
+ forth_eval("config-w@");
+ return forth_pop();
+}
+
+void SLOF_pci_config_write32(long offset, long value)
+{
+ forth_push(value);
+ forth_push(offset);
+ forth_eval("config-l!");
+}
+
+void SLOF_pci_config_write16(long offset, long value)
+{
+ forth_push(value);
+ forth_push(offset);
+ forth_eval("config-w!");
+}
+
+void *SLOF_translate_my_address(void *addr)
+{
+ forth_push((long)addr);
+ forth_eval("translate-my-address");
+ return (void *)forth_pop();
+}