[PATCH 2/7] ARM: hw_breakpoint: fix monitor mode detection with v7.1

Stephen Boyd sboyd at codeaurora.org
Wed Oct 24 18:53:34 EDT 2012

On 10/17/12 08:31, Will Deacon wrote:
> Detecting whether halting debug is enabled is no longer possible via
> the DBGDSCR in v7.1, returning an UNKNOWN value for the HDBGen bit via
> CP14 when the OS lock is clear.
> This patch removes the halting mode check and ensures that accesses to
> the internal and external views of the DBGDSCR are serialised with an
> instruction barrier.
> Signed-off-by: Will Deacon <will.deacon at arm.com>

Tested-by: Stephen Boyd <sboyd at codeaurora.org>

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