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Diffstat (limited to 'arch/x86/kernel/sysfb_simplefb.c')
-rw-r--r--arch/x86/kernel/sysfb_simplefb.c111
1 files changed, 0 insertions, 111 deletions
diff --git a/arch/x86/kernel/sysfb_simplefb.c b/arch/x86/kernel/sysfb_simplefb.c
deleted file mode 100644
index 298fc1edd9c9..000000000000
--- a/arch/x86/kernel/sysfb_simplefb.c
+++ /dev/null
@@ -1,111 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Generic System Framebuffers on x86
- * Copyright (c) 2012-2013 David Herrmann <dh.herrmann@gmail.com>
- */
-
-/*
- * simple-framebuffer probing
- * Try to convert "screen_info" into a "simple-framebuffer" compatible mode.
- * If the mode is incompatible, we return "false" and let the caller create
- * legacy nodes instead.
- */
-
-#include <linux/err.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/platform_data/simplefb.h>
-#include <linux/platform_device.h>
-#include <linux/screen_info.h>
-#include <asm/sysfb.h>
-
-static const char simplefb_resname[] = "BOOTFB";
-static const struct simplefb_format formats[] = SIMPLEFB_FORMATS;
-
-/* try parsing x86 screen_info into a simple-framebuffer mode struct */
-__init bool parse_mode(const struct screen_info *si,
- struct simplefb_platform_data *mode)
-{
- const struct simplefb_format *f;
- __u8 type;
- unsigned int i;
-
- type = si->orig_video_isVGA;
- if (type != VIDEO_TYPE_VLFB && type != VIDEO_TYPE_EFI)
- return false;
-
- for (i = 0; i < ARRAY_SIZE(formats); ++i) {
- f = &formats[i];
- if (si->lfb_depth == f->bits_per_pixel &&
- si->red_size == f->red.length &&
- si->red_pos == f->red.offset &&
- si->green_size == f->green.length &&
- si->green_pos == f->green.offset &&
- si->blue_size == f->blue.length &&
- si->blue_pos == f->blue.offset &&
- si->rsvd_size == f->transp.length &&
- si->rsvd_pos == f->transp.offset) {
- mode->format = f->name;
- mode->width = si->lfb_width;
- mode->height = si->lfb_height;
- mode->stride = si->lfb_linelength;
- return true;
- }
- }
-
- return false;
-}
-
-__init int create_simplefb(const struct screen_info *si,
- const struct simplefb_platform_data *mode)
-{
- struct platform_device *pd;
- struct resource res;
- u64 base, size;
- u32 length;
-
- /*
- * If the 64BIT_BASE capability is set, ext_lfb_base will contain the
- * upper half of the base address. Assemble the address, then make sure
- * it is valid and we can actually access it.
- */
- base = si->lfb_base;
- if (si->capabilities & VIDEO_CAPABILITY_64BIT_BASE)
- base |= (u64)si->ext_lfb_base << 32;
- if (!base || (u64)(resource_size_t)base != base) {
- printk(KERN_DEBUG "sysfb: inaccessible VRAM base\n");
- return -EINVAL;
- }
-
- /*
- * Don't use lfb_size as IORESOURCE size, since it may contain the
- * entire VMEM, and thus require huge mappings. Use just the part we
- * need, that is, the part where the framebuffer is located. But verify
- * that it does not exceed the advertised VMEM.
- * Note that in case of VBE, the lfb_size is shifted by 16 bits for
- * historical reasons.
- */
- size = si->lfb_size;
- if (si->orig_video_isVGA == VIDEO_TYPE_VLFB)
- size <<= 16;
- length = mode->height * mode->stride;
- if (length > size) {
- printk(KERN_WARNING "sysfb: VRAM smaller than advertised\n");
- return -EINVAL;
- }
- length = PAGE_ALIGN(length);
-
- /* setup IORESOURCE_MEM as framebuffer memory */
- memset(&res, 0, sizeof(res));
- res.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
- res.name = simplefb_resname;
- res.start = base;
- res.end = res.start + length - 1;
- if (res.end <= res.start)
- return -EINVAL;
-
- pd = platform_device_register_resndata(NULL, "simple-framebuffer", 0,
- &res, 1, mode, sizeof(*mode));
- return PTR_ERR_OR_ZERO(pd);
-}