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https://github.com/fail0verflow/switch-coreboot.git
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acbf32a042
There's no need to reserve the framebuffer within coreboot. If the payloads need a framebuffer they can allocate one themselves. BUG=chrome-os-partner:31355 BRANCH=None TEST=Built and booted on ryu. Original-Change-Id: I8d8b159e7fdd877e392193c5474a7518e9b3ad21 Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/221726 Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org> Original-Tested-by: Furquan Shaikh <furquan@chromium.org> Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org> (cherry picked from commit 1ff8da9fed414fceeda3f94b296312f4531b320f) Signed-off-by: Aaron Durbin <adurbin@chromium.org> Change-Id: I4e7c0417824f2be9836b1bc2bb99322c78490ca2 Reviewed-on: http://review.coreboot.org/9256 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright 2014 Google Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <cbmem.h>
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#include <soc/addressmap.h>
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void *cbmem_top(void)
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{
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static uintptr_t addr;
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if (addr == 0) {
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uintptr_t begin_mib;
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uintptr_t end_mib;
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memory_in_range_below_4gb(&begin_mib, &end_mib);
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/* Make sure we consume everything up to 4GiB. */
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if (end_mib == 4096)
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addr = ~(uint32_t)0;
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else
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addr = end_mib << 20;
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}
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return (void *)addr;
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}
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