openwrt/target/linux/ramips/patches-5.4/0003-MIPS-Fix-memory-reservation-in-bootmem_init-for-cert.patch
DENG Qingfang 6be0da90a1 ramips: refresh patches
Removed upstreamed/solved elsewhere upstream:
- 0001-MIPS-ralink-Add-rt3352-SPI_CS1-pinmux.patch
- 0002-MIPS-pci-rt2880-set-pci-controller-of_node.patch
- 0004-MIPS-ralink-add-MT7621-pcie-driver.patch
- 0009-PCI-MIPS-enable-PCIe-on-MT7688.patch
- 0025-pinctrl-ralink-add-pinctrl-driver.patch
- 0028-GPIO-ralink-add-mt7621-gpio-controller.patch
- 0043-spi-add-mt7621-support.patch
- 0045-i2c-add-mt7621-driver.patch
- 0047-DMA-ralink-add-rt2880-dma-engine.patch
- 0053-mtd-spi-nor-add-w25q256-3b-mode-switch.patch
- 0054-mtd-spi-nor-w25q256-respect-default-mode.patch
- 0099-pci-mt7620.patch
- 304-spi-nor-enable-4B-opcodes-for-mx25l25635f.patch

Removed because of the new NAND driver:
- 0038-Revert-mtd-nand-Remove-unused-chip-write_page-hook.patch
- 0039-mtd-add-mt7621-nand-support.patch
- 0040-nand-hack.patch

Remove patch that no longer applies (needs rework):
- 0034-NET-multi-phy-support.patch

Signed-off-by: DENG Qingfang <dengqf6@mail2.sysu.edu.cn>
2020-04-04 12:04:13 +08:00

46 lines
1.5 KiB
Diff

From: Tobias Wolf <dev-NTEO@vplace.de>
Subject: [v2] MIPS: Fix memory reservation in bootmem_init for certain non-usermem setups
Commit 67a3ba25aa95 ("MIPS: Fix incorrect mem=X@Y handling") introduced a new
issue for rt288x where "PHYS_OFFSET" is 0x0 but the calculated "ramstart" is
not. As the prerequisite of custom memory map has been removed, this results
in the full memory range of 0x0 - 0x8000000 to be marked as reserved for this
platform.
v2: Correctly compare that usermem is not null.
This patch adds the originally intended prerequisite again.
Signed-off-by: Tobias Wolf <dev-NTEO@vplace.de>
---
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -285,6 +285,8 @@ static unsigned long __init init_initrd(
* Initialize the bootmem allocator. It also setup initrd related data
* if needed.
*/
+static int usermem __initdata;
+
#if defined(CONFIG_SGI_IP27) || (defined(CONFIG_CPU_LOONGSON3) && defined(CONFIG_NUMA))
static void __init bootmem_init(void)
@@ -323,7 +325,7 @@ static void __init bootmem_init(void)
/*
* Reserve any memory between the start of RAM and PHYS_OFFSET
*/
- if (ramstart > PHYS_OFFSET)
+ if (usermem && ramstart > PHYS_OFFSET)
memblock_reserve(PHYS_OFFSET, ramstart - PHYS_OFFSET);
if (PFN_UP(ramstart) > ARCH_PFN_OFFSET) {
@@ -384,8 +386,6 @@ static void __init bootmem_init(void)
#endif /* CONFIG_SGI_IP27 */
-static int usermem __initdata;
-
static int __init early_parse_mem(char *p)
{
phys_addr_t start, size;