[POWERPC] Fix various offb and BootX-related issues
This patch fixes various issues with offb (the default fbdev used on powerpc when no proper fbdev is supported). It was broken when using BootX under some circumstances and would fail to properly get the framebuffer base address in others. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Benjamin Herrenschmidt
Paul Mackerras
Родитель
4ce631e7a2
Коммит
ab13446616
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@ -111,7 +111,7 @@ void __init btext_setup_display(int width, int height, int depth, int pitch,
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logicalDisplayBase = (unsigned char *)address;
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dispDeviceBase = (unsigned char *)address;
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dispDeviceRowBytes = pitch;
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dispDeviceDepth = depth;
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dispDeviceDepth = depth == 15 ? 16 : depth;
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dispDeviceRect[0] = dispDeviceRect[1] = 0;
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dispDeviceRect[2] = width;
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dispDeviceRect[3] = height;
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@ -160,20 +160,28 @@ int btext_initialize(struct device_node *np)
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unsigned long address = 0;
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u32 *prop;
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prop = (u32 *)get_property(np, "width", NULL);
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prop = (u32 *)get_property(np, "linux,bootx-width", NULL);
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if (prop == NULL)
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prop = (u32 *)get_property(np, "width", NULL);
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if (prop == NULL)
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return -EINVAL;
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width = *prop;
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prop = (u32 *)get_property(np, "height", NULL);
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prop = (u32 *)get_property(np, "linux,bootx-height", NULL);
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if (prop == NULL)
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prop = (u32 *)get_property(np, "height", NULL);
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if (prop == NULL)
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return -EINVAL;
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height = *prop;
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prop = (u32 *)get_property(np, "depth", NULL);
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prop = (u32 *)get_property(np, "linux,bootx-depth", NULL);
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if (prop == NULL)
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prop = (u32 *)get_property(np, "depth", NULL);
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if (prop == NULL)
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return -EINVAL;
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depth = *prop;
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pitch = width * ((depth + 7) / 8);
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prop = (u32 *)get_property(np, "linebytes", NULL);
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prop = (u32 *)get_property(np, "linux,bootx-linebytes", NULL);
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if (prop == NULL)
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prop = (u32 *)get_property(np, "linebytes", NULL);
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if (prop)
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pitch = *prop;
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if (pitch == 1)
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@ -194,7 +202,7 @@ int btext_initialize(struct device_node *np)
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g_max_loc_Y = height / 16;
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dispDeviceBase = (unsigned char *)address;
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dispDeviceRowBytes = pitch;
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dispDeviceDepth = depth;
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dispDeviceDepth = depth == 15 ? 16 : depth;
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dispDeviceRect[0] = dispDeviceRect[1] = 0;
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dispDeviceRect[2] = width;
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dispDeviceRect[3] = height;
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@ -51,7 +51,6 @@
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extern void bootx_init(unsigned long r4, unsigned long phys);
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boot_infos_t *boot_infos;
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struct ide_machdep_calls ppc_ide_md;
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int boot_cpuid;
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@ -181,8 +181,25 @@ static void __init bootx_add_chosen_props(unsigned long base,
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static void __init bootx_add_display_props(unsigned long base,
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unsigned long *mem_end)
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{
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boot_infos_t *bi = bootx_info;
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u32 tmp;
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bootx_dt_add_prop("linux,boot-display", NULL, 0, mem_end);
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bootx_dt_add_prop("linux,opened", NULL, 0, mem_end);
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tmp = bi->dispDeviceDepth;
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bootx_dt_add_prop("linux,bootx-depth", &tmp, 4, mem_end);
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tmp = bi->dispDeviceRect[2] - bi->dispDeviceRect[0];
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bootx_dt_add_prop("linux,bootx-width", &tmp, 4, mem_end);
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tmp = bi->dispDeviceRect[3] - bi->dispDeviceRect[1];
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bootx_dt_add_prop("linux,bootx-height", &tmp, 4, mem_end);
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tmp = bi->dispDeviceRowBytes;
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bootx_dt_add_prop("linux,bootx-linebytes", &tmp, 4, mem_end);
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tmp = (u32)bi->dispDeviceBase;
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if (tmp == 0)
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tmp = (u32)bi->logicalDisplayBase;
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tmp += bi->dispDeviceRect[1] * bi->dispDeviceRowBytes;
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tmp += bi->dispDeviceRect[0] * ((bi->dispDeviceDepth + 7) / 8);
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bootx_dt_add_prop("linux,bootx-addr", &tmp, 4, mem_end);
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}
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static void __init bootx_dt_add_string(char *s, unsigned long *mem_end)
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@ -222,6 +239,11 @@ static void __init bootx_scan_dt_build_strings(unsigned long base,
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DBG(" detected display ! adding properties names !\n");
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bootx_dt_add_string("linux,boot-display", mem_end);
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bootx_dt_add_string("linux,opened", mem_end);
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bootx_dt_add_string("linux,bootx-depth", mem_end);
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bootx_dt_add_string("linux,bootx-width", mem_end);
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bootx_dt_add_string("linux,bootx-height", mem_end);
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bootx_dt_add_string("linux,bootx-linebytes", mem_end);
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bootx_dt_add_string("linux,bootx-addr", mem_end);
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strncpy(bootx_disp_path, namep, 255);
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}
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@ -443,7 +465,14 @@ void __init bootx_init(unsigned long r3, unsigned long r4)
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if (!BOOT_INFO_IS_V2_COMPATIBLE(bi))
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bi->logicalDisplayBase = bi->dispDeviceBase;
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/* Fixup depth 16 -> 15 as that's what MacOS calls 16bpp */
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if (bi->dispDeviceDepth == 16)
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bi->dispDeviceDepth = 15;
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#ifdef CONFIG_BOOTX_TEXT
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ptr = (unsigned long)bi->logicalDisplayBase;
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ptr += bi->dispDeviceRect[1] * bi->dispDeviceRowBytes;
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ptr += bi->dispDeviceRect[0] * ((bi->dispDeviceDepth + 7) / 8);
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btext_setup_display(bi->dispDeviceRect[2] - bi->dispDeviceRect[0],
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bi->dispDeviceRect[3] - bi->dispDeviceRect[1],
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bi->dispDeviceDepth, bi->dispDeviceRowBytes,
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@ -97,14 +97,43 @@ static int offb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
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u_int transp, struct fb_info *info)
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{
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struct offb_par *par = (struct offb_par *) info->par;
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int i, depth;
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u32 *pal = info->pseudo_palette;
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if (!par->cmap_adr || regno > 255)
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depth = info->var.bits_per_pixel;
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if (depth == 16)
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depth = (info->var.green.length == 5) ? 15 : 16;
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if (regno > 255 ||
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(depth == 16 && regno > 63) ||
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(depth == 15 && regno > 31))
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return 1;
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if (regno < 16) {
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switch (depth) {
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case 15:
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pal[regno] = (regno << 10) | (regno << 5) | regno;
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break;
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case 16:
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pal[regno] = (regno << 11) | (regno << 5) | regno;
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break;
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case 24:
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pal[regno] = (regno << 16) | (regno << 8) | regno;
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break;
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case 32:
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i = (regno << 8) | regno;
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pal[regno] = (i << 16) | i;
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break;
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}
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}
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red >>= 8;
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green >>= 8;
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blue >>= 8;
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if (!par->cmap_adr)
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return 0;
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switch (par->cmap_type) {
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case cmap_m64:
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writeb(regno, par->cmap_adr);
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@ -141,20 +170,6 @@ static int offb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
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break;
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}
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if (regno < 16)
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switch (info->var.bits_per_pixel) {
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case 16:
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((u16 *) (info->pseudo_palette))[regno] =
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(regno << 10) | (regno << 5) | regno;
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break;
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case 32:
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{
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int i = (regno << 8) | regno;
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((u32 *) (info->pseudo_palette))[regno] =
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(i << 16) | i;
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break;
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}
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}
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return 0;
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}
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@ -223,81 +238,9 @@ int __init offb_init(void)
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{
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struct device_node *dp = NULL, *boot_disp = NULL;
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#if defined(CONFIG_BOOTX_TEXT) && defined(CONFIG_PPC32)
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struct device_node *macos_display = NULL;
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#endif
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if (fb_get_options("offb", NULL))
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return -ENODEV;
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#if defined(CONFIG_BOOTX_TEXT) && defined(CONFIG_PPC32)
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/* If we're booted from BootX... */
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if (boot_infos != 0) {
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unsigned long addr =
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(unsigned long) boot_infos->dispDeviceBase;
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u32 *addrp;
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u64 daddr, dsize;
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unsigned int flags;
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/* find the device node corresponding to the macos display */
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while ((dp = of_find_node_by_type(dp, "display"))) {
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int i;
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/*
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* Look for an AAPL,address property first.
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*/
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unsigned int na;
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unsigned int *ap =
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(unsigned int *)get_property(dp, "AAPL,address",
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&na);
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if (ap != 0) {
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for (na /= sizeof(unsigned int); na > 0;
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--na, ++ap)
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if (*ap <= addr &&
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addr < *ap + 0x1000000) {
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macos_display = dp;
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goto foundit;
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}
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}
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/*
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* See if the display address is in one of the address
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* ranges for this display.
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*/
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i = 0;
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for (;;) {
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addrp = of_get_address(dp, i++, &dsize, &flags);
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if (addrp == NULL)
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break;
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if (!(flags & IORESOURCE_MEM))
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continue;
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daddr = of_translate_address(dp, addrp);
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if (daddr == OF_BAD_ADDR)
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continue;
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if (daddr <= addr && addr < (daddr + dsize)) {
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macos_display = dp;
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goto foundit;
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}
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}
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foundit:
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if (macos_display) {
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printk(KERN_INFO "MacOS display is %s\n",
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dp->full_name);
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break;
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}
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}
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/* initialize it */
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offb_init_fb(macos_display ? macos_display->
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name : "MacOS display",
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macos_display ? macos_display->
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full_name : "MacOS display",
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boot_infos->dispDeviceRect[2],
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boot_infos->dispDeviceRect[3],
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boot_infos->dispDeviceDepth,
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boot_infos->dispDeviceRowBytes, addr, NULL);
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}
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#endif /* defined(CONFIG_BOOTX_TEXT) && defined(CONFIG_PPC32) */
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for (dp = NULL; (dp = of_find_node_by_type(dp, "display"));) {
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if (get_property(dp, "linux,opened", NULL) &&
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get_property(dp, "linux,boot-display", NULL)) {
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@ -317,94 +260,93 @@ int __init offb_init(void)
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static void __init offb_init_nodriver(struct device_node *dp)
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{
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int *pp, i;
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unsigned int len;
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int width = 640, height = 480, depth = 8, pitch;
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unsigned int flags, rsize, *up;
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u64 address = OF_BAD_ADDR;
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u32 *addrp;
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int i, width = 640, height = 480, depth = 8, pitch = 640;
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unsigned int flags, rsize, addr_prop = 0;
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unsigned long max_size = 0;
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u64 rstart, address = OF_BAD_ADDR;
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u32 *pp, *addrp, *up;
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u64 asize;
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if ((pp = (int *) get_property(dp, "depth", &len)) != NULL
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&& len == sizeof(int))
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pp = (u32 *)get_property(dp, "linux,bootx-depth", &len);
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if (pp == NULL)
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pp = (u32 *)get_property(dp, "depth", &len);
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if (pp && len == sizeof(u32))
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depth = *pp;
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if ((pp = (int *) get_property(dp, "width", &len)) != NULL
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&& len == sizeof(int))
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pp = (u32 *)get_property(dp, "linux,bootx-width", &len);
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if (pp == NULL)
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pp = (u32 *)get_property(dp, "width", &len);
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if (pp && len == sizeof(u32))
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width = *pp;
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if ((pp = (int *) get_property(dp, "height", &len)) != NULL
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&& len == sizeof(int))
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pp = (u32 *)get_property(dp, "linux,bootx-height", &len);
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if (pp == NULL)
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pp = (u32 *)get_property(dp, "height", &len);
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if (pp && len == sizeof(u32))
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height = *pp;
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if ((pp = (int *) get_property(dp, "linebytes", &len)) != NULL
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&& len == sizeof(int)) {
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pp = (u32 *)get_property(dp, "linux,bootx-linebytes", &len);
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if (pp == NULL)
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pp = (u32 *)get_property(dp, "linebytes", &len);
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if (pp && len == sizeof(u32))
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pitch = *pp;
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if (pitch == 1)
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pitch = 0x1000;
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} else
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pitch = width;
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else
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pitch = width * ((depth + 7) / 8);
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rsize = (unsigned long)pitch * (unsigned long)height *
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(unsigned long)(depth / 8);
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rsize = (unsigned long)pitch * (unsigned long)height;
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/* Try to match device to a PCI device in order to get a properly
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* translated address rather then trying to decode the open firmware
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* stuff in various incorrect ways
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*/
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#ifdef CONFIG_PCI
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/* First try to locate the PCI device if any */
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{
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struct pci_dev *pdev = NULL;
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/* Ok, now we try to figure out the address of the framebuffer.
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*
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* Unfortunately, Open Firmware doesn't provide a standard way to do
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* so. All we can do is a dodgy heuristic that happens to work in
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* practice. On most machines, the "address" property contains what
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* we need, though not on Matrox cards found in IBM machines. What I've
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* found that appears to give good results is to go through the PCI
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* ranges and pick one that is both big enough and if possible encloses
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* the "address" property. If none match, we pick the biggest
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*/
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up = (u32 *)get_property(dp, "linux,bootx-addr", &len);
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if (up == NULL)
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up = (u32 *)get_property(dp, "address", &len);
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if (up && len == sizeof(u32))
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addr_prop = *up;
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for_each_pci_dev(pdev) {
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if (dp == pci_device_to_OF_node(pdev))
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break;
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}
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if (pdev) {
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for (i = 0; i < 6 && address == OF_BAD_ADDR; i++) {
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if ((pci_resource_flags(pdev, i) &
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IORESOURCE_MEM) &&
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(pci_resource_len(pdev, i) >= rsize))
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address = pci_resource_start(pdev, i);
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}
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pci_dev_put(pdev);
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}
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}
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#endif /* CONFIG_PCI */
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for (i = 0; (addrp = of_get_address(dp, i, &asize, &flags))
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!= NULL; i++) {
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int match_addrp = 0;
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/* This one is dodgy, we may drop it ... */
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if (address == OF_BAD_ADDR &&
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(up = (unsigned *) get_property(dp, "address", &len)) != NULL &&
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len == sizeof(unsigned int))
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address = (u64) * up;
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if (address == OF_BAD_ADDR) {
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for (i = 0; (addrp = of_get_address(dp, i, &asize, &flags))
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!= NULL; i++) {
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if (!(flags & IORESOURCE_MEM))
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continue;
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if (asize >= pitch * height * depth / 8)
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break;
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}
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if (addrp == NULL) {
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printk(KERN_ERR
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"no framebuffer address found for %s\n",
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dp->full_name);
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return;
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}
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address = of_translate_address(dp, addrp);
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if (address == OF_BAD_ADDR) {
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printk(KERN_ERR
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"can't translate framebuffer address for %s\n",
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dp->full_name);
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return;
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if (!(flags & IORESOURCE_MEM))
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continue;
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if (asize < rsize)
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continue;
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rstart = of_translate_address(dp, addrp);
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if (rstart == OF_BAD_ADDR)
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continue;
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if (addr_prop && (rstart <= addr_prop) &&
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((rstart + asize) >= (addr_prop + rsize)))
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match_addrp = 1;
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if (match_addrp) {
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address = addr_prop;
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break;
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}
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if (rsize > max_size) {
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max_size = rsize;
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address = OF_BAD_ADDR;
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}
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if (address == OF_BAD_ADDR)
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address = rstart;
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}
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if (address == OF_BAD_ADDR && addr_prop)
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address = (u64)addr_prop;
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if (address != OF_BAD_ADDR) {
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/* kludge for valkyrie */
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if (strcmp(dp->name, "valkyrie") == 0)
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address += 0x1000;
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offb_init_fb(dp->name, dp->full_name, width, height, depth,
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pitch, address, dp);
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}
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offb_init_fb(dp->name, dp->full_name, width, height, depth,
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pitch, address, dp);
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}
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static void __init offb_init_fb(const char *name, const char *full_name,
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@ -412,7 +354,7 @@ static void __init offb_init_fb(const char *name, const char *full_name,
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int pitch, unsigned long address,
|
||||
struct device_node *dp)
|
||||
{
|
||||
unsigned long res_size = pitch * height * depth / 8;
|
||||
unsigned long res_size = pitch * height * (depth + 7) / 8;
|
||||
struct offb_par *par = &default_par;
|
||||
unsigned long res_start = address;
|
||||
struct fb_fix_screeninfo *fix;
|
||||
|
|
@ -426,7 +368,7 @@ static void __init offb_init_fb(const char *name, const char *full_name,
|
|||
printk(KERN_INFO
|
||||
"Using unsupported %dx%d %s at %lx, depth=%d, pitch=%d\n",
|
||||
width, height, name, address, depth, pitch);
|
||||
if (depth != 8 && depth != 16 && depth != 32) {
|
||||
if (depth != 8 && depth != 15 && depth != 16 && depth != 32) {
|
||||
printk(KERN_ERR "%s: can't use depth = %d\n", full_name,
|
||||
depth);
|
||||
release_mem_region(res_start, res_size);
|
||||
|
|
@ -502,7 +444,6 @@ static void __init offb_init_fb(const char *name, const char *full_name,
|
|||
: */ FB_VISUAL_TRUECOLOR;
|
||||
|
||||
var->xoffset = var->yoffset = 0;
|
||||
var->bits_per_pixel = depth;
|
||||
switch (depth) {
|
||||
case 8:
|
||||
var->bits_per_pixel = 8;
|
||||
|
|
@ -515,7 +456,7 @@ static void __init offb_init_fb(const char *name, const char *full_name,
|
|||
var->transp.offset = 0;
|
||||
var->transp.length = 0;
|
||||
break;
|
||||
case 16: /* RGB 555 */
|
||||
case 15: /* RGB 555 */
|
||||
var->bits_per_pixel = 16;
|
||||
var->red.offset = 10;
|
||||
var->red.length = 5;
|
||||
|
|
@ -526,6 +467,17 @@ static void __init offb_init_fb(const char *name, const char *full_name,
|
|||
var->transp.offset = 0;
|
||||
var->transp.length = 0;
|
||||
break;
|
||||
case 16: /* RGB 565 */
|
||||
var->bits_per_pixel = 16;
|
||||
var->red.offset = 11;
|
||||
var->red.length = 5;
|
||||
var->green.offset = 5;
|
||||
var->green.length = 6;
|
||||
var->blue.offset = 0;
|
||||
var->blue.length = 5;
|
||||
var->transp.offset = 0;
|
||||
var->transp.length = 0;
|
||||
break;
|
||||
case 32: /* RGB 888 */
|
||||
var->bits_per_pixel = 32;
|
||||
var->red.offset = 16;
|
||||
|
|
|
|||
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