mirror of https://gitee.com/openkylin/linux.git
716a3dc200
Several platforms are now using the memblock_alloc+memblock_free+
memblock_remove trick to obtain memory which won't be mapped in the
kernel's page tables. Most platforms do this (correctly) in the
->reserve callback. However, OMAP has started to call these functions
outside of this callback, and this is extremely unsafe - memory will
not be unmapped, and could well be given out after memblock is no
longer responsible for its management.
So, provide arm_memblock_steal() to perform this function, and ensure
that it panic()s if it is used inappropriately. Convert everyone
over, including OMAP.
As a result, OMAP with OMAP4_ERRATA_I688 enabled will panic on boot
with this change. Mark this option as BROKEN and make it depend on
BROKEN. OMAP needs to be fixed, or
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| .. | ||
| include/plat | ||
| Kconfig | ||
| Makefile | ||
| clock.c | ||
| common.c | ||
| counter_32k.c | ||
| debug-devices.c | ||
| debug-leds.c | ||
| devices.c | ||
| dma.c | ||
| dmtimer.c | ||
| fb.c | ||
| fb.h | ||
| i2c.c | ||
| mailbox.c | ||
| mcbsp.c | ||
| mux.c | ||
| ocpi.c | ||
| omap-pm-noop.c | ||
| omap_device.c | ||
| sram.c | ||
| sram.h | ||
| usb.c | ||