KVM: PPC: Export __giveup_vsx

[safe/jmp/linux-2.6] / arch / powerpc / kernel / btext.c

diff --git a/arch/powerpc/kernel/btext.c b/arch/powerpc/kernel/btext.c
index 893dd24..26e5863 100644 (file)
--- a/arch/powerpc/kernel/btext.c
+++ b/arch/powerpc/kernel/btext.c
@@ -3,22 +3,21 @@
  *
  * Benjamin Herrenschmidt <benh@kernel.crashing.org>
  */
-#include <linux/config.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/lmb.h>
 
 #include <asm/sections.h>
 #include <asm/prom.h>
 #include <asm/btext.h>
-#include <asm/prom.h>
 #include <asm/page.h>
 #include <asm/mmu.h>
 #include <asm/pgtable.h>
 #include <asm/io.h>
-#include <asm/lmb.h>
 #include <asm/processor.h>
+#include <asm/udbg.h>
 
 #define NO_SCROLL
 
@@ -60,7 +59,7 @@ int force_printk_to_btext = 0;
  *
  * The display is mapped to virtual address 0xD0000000, rather
  * than 1:1, because some some CHRP machines put the frame buffer
- * in the region starting at 0xC0000000 (KERNELBASE).
+ * in the region starting at 0xC0000000 (PAGE_OFFSET).
  * This mapping is temporary and will disappear as soon as the
  * setup done by MMU_Init() is applied.
  *
@@ -71,7 +70,7 @@ int force_printk_to_btext = 0;
  */
 void __init btext_prepare_BAT(void)
 {
-       unsigned long vaddr = KERNELBASE + 0x10000000;
+       unsigned long vaddr = PAGE_OFFSET + 0x10000000;
        unsigned long addr;
        unsigned long lowbits;
 
@@ -112,7 +111,7 @@ void __init btext_setup_display(int width, int height, int depth, int pitch,
        logicalDisplayBase = (unsigned char *)address;
        dispDeviceBase = (unsigned char *)address;
        dispDeviceRowBytes = pitch;
-       dispDeviceDepth = depth;
+       dispDeviceDepth = depth == 15 ? 16 : depth;
        dispDeviceRect[0] = dispDeviceRect[1] = 0;
        dispDeviceRect[2] = width;
        dispDeviceRect[3] = height;
@@ -159,27 +158,37 @@ int btext_initialize(struct device_node *np)
 {
        unsigned int width, height, depth, pitch;
        unsigned long address = 0;
-       u32 *prop;
+       const u32 *prop;
 
-       prop = (u32 *)get_property(np, "width", NULL);
+       prop = of_get_property(np, "linux,bootx-width", NULL);
+       if (prop == NULL)
+               prop = of_get_property(np, "width", NULL);
        if (prop == NULL)
                return -EINVAL;
        width = *prop;
-       prop = (u32 *)get_property(np, "height", NULL);
+       prop = of_get_property(np, "linux,bootx-height", NULL);
+       if (prop == NULL)
+               prop = of_get_property(np, "height", NULL);
        if (prop == NULL)
                return -EINVAL;
        height = *prop;
-       prop = (u32 *)get_property(np, "depth", NULL);
+       prop = of_get_property(np, "linux,bootx-depth", NULL);
+       if (prop == NULL)
+               prop = of_get_property(np, "depth", NULL);
        if (prop == NULL)
                return -EINVAL;
        depth = *prop;
        pitch = width * ((depth + 7) / 8);
-       prop = (u32 *)get_property(np, "linebytes", NULL);
-       if (prop)
+       prop = of_get_property(np, "linux,bootx-linebytes", NULL);
+       if (prop == NULL)
+               prop = of_get_property(np, "linebytes", NULL);
+       if (prop && *prop != 0xffffffffu)
                pitch = *prop;
        if (pitch == 1)
                pitch = 0x1000;
-       prop = (u32 *)get_property(np, "address", NULL);
+       prop = of_get_property(np, "linux,bootx-addr", NULL);
+       if (prop == NULL)
+               prop = of_get_property(np, "address", NULL);
        if (prop)
                address = *prop;
 
@@ -195,7 +204,7 @@ int btext_initialize(struct device_node *np)
        g_max_loc_Y = height / 16;
        dispDeviceBase = (unsigned char *)address;
        dispDeviceRowBytes = pitch;
-       dispDeviceDepth = depth;
+       dispDeviceDepth = depth == 15 ? 16 : depth;
        dispDeviceRect[0] = dispDeviceRect[1] = 0;
        dispDeviceRect[2] = width;
        dispDeviceRect[3] = height;
@@ -207,13 +216,11 @@ int btext_initialize(struct device_node *np)
 
 int __init btext_find_display(int allow_nonstdout)
 {
-       char *name;
+       const char *name;
        struct device_node *np = NULL; 
        int rc = -ENODEV;
 
-       printk("trying to initialize btext ...\n");
-
-       name = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
+       name = of_get_property(of_chosen, "linux,stdout-path", NULL);
        if (name != NULL) {
                np = of_find_node_by_path(name);
                if (np != NULL) {
@@ -229,8 +236,8 @@ int __init btext_find_display(int allow_nonstdout)
        if (rc == 0 || !allow_nonstdout)
                return rc;
 
-       for (np = NULL; (np = of_find_node_by_type(np, "display"));) {
-               if (get_property(np, "linux,opened", NULL)) {
+       for_each_node_by_type(np, "display") {
+               if (of_get_property(np, "linux,opened", NULL)) {
                        printk("trying %s ...\n", np->full_name);
                        rc = btext_initialize(np);
                        printk("result: %d\n", rc);
@@ -435,28 +442,26 @@ void btext_drawtext(const char *c, unsigned int len)
 
 void btext_drawhex(unsigned long v)
 {
-       char *hex_table = "0123456789abcdef";
-
        if (!boot_text_mapped)
                return;
 #ifdef CONFIG_PPC64
-       btext_drawchar(hex_table[(v >> 60) & 0x0000000FUL]);
-       btext_drawchar(hex_table[(v >> 56) & 0x0000000FUL]);
-       btext_drawchar(hex_table[(v >> 52) & 0x0000000FUL]);
-       btext_drawchar(hex_table[(v >> 48) & 0x0000000FUL]);
-       btext_drawchar(hex_table[(v >> 44) & 0x0000000FUL]);
-       btext_drawchar(hex_table[(v >> 40) & 0x0000000FUL]);
-       btext_drawchar(hex_table[(v >> 36) & 0x0000000FUL]);
-       btext_drawchar(hex_table[(v >> 32) & 0x0000000FUL]);
+       btext_drawchar(hex_asc_hi(v >> 56));
+       btext_drawchar(hex_asc_lo(v >> 56));
+       btext_drawchar(hex_asc_hi(v >> 48));
+       btext_drawchar(hex_asc_lo(v >> 48));
+       btext_drawchar(hex_asc_hi(v >> 40));
+       btext_drawchar(hex_asc_lo(v >> 40));
+       btext_drawchar(hex_asc_hi(v >> 32));
+       btext_drawchar(hex_asc_lo(v >> 32));
 #endif
-       btext_drawchar(hex_table[(v >> 28) & 0x0000000FUL]);
-       btext_drawchar(hex_table[(v >> 24) & 0x0000000FUL]);
-       btext_drawchar(hex_table[(v >> 20) & 0x0000000FUL]);
-       btext_drawchar(hex_table[(v >> 16) & 0x0000000FUL]);
-       btext_drawchar(hex_table[(v >> 12) & 0x0000000FUL]);
-       btext_drawchar(hex_table[(v >>  8) & 0x0000000FUL]);
-       btext_drawchar(hex_table[(v >>  4) & 0x0000000FUL]);
-       btext_drawchar(hex_table[(v >>  0) & 0x0000000FUL]);
+       btext_drawchar(hex_asc_hi(v >> 24));
+       btext_drawchar(hex_asc_lo(v >> 24));
+       btext_drawchar(hex_asc_hi(v >> 16));
+       btext_drawchar(hex_asc_lo(v >> 16));
+       btext_drawchar(hex_asc_hi(v >> 8));
+       btext_drawchar(hex_asc_lo(v >> 8));
+       btext_drawchar(hex_asc_hi(v));
+       btext_drawchar(hex_asc_lo(v));
        btext_drawchar(' ');
 }
 
@@ -907,3 +912,11 @@ static unsigned char vga_font[cmapsz] = {
 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 0x00, 0x00, 0x00, 0x00,
 };
+
+void __init udbg_init_btext(void)
+{
+       /* If btext is enabled, we might have a BAT setup for early display,
+        * thus we do enable some very basic udbg output
+        */
+       udbg_putc = btext_drawchar;
+}