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| Started by | Michael Ellerman <patch-notifications@ellerman.id.au> |
|---|---|
| First post | 2017-02-01 02:10 +0100 |
| Last post | 2017-02-01 02:10 +0100 |
| Articles | 1 — 1 participant |
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Re: [v6,1/5] powernv:idle: Add IDLE_STATE_ENTER_SEQ_NORET macro Michael Ellerman <patch-notifications@ellerman.id.au> - 2017-02-01 02:10 +0100
| From | Michael Ellerman <patch-notifications@ellerman.id.au> |
|---|---|
| Date | 2017-02-01 02:10 +0100 |
| Subject | Re: [v6,1/5] powernv:idle: Add IDLE_STATE_ENTER_SEQ_NORET macro |
| Message-ID | <t5RAR-7Nm-3@gated-at.bofh.it> |
On Wed, 2017-01-25 at 08:36:25 UTC, "Gautham R. Shenoy" wrote: > From: "Gautham R. Shenoy" <ego@linux.vnet.ibm.com> > > Currently all the low-power idle states are expected to wake up > at reset vector 0x100. Which is why the macro IDLE_STATE_ENTER_SEQ > that puts the CPU to an idle state and never returns. > > On ISA v3.0, when the ESL and EC bits in the PSSCR are zero, the CPU > is expected to wake up at the next instruction of the idle > instruction. > > This patch adds a new macro named IDLE_STATE_ENTER_SEQ_NORET for the > no-return variant and reuses the name IDLE_STATE_ENTER_SEQ > for a variant that allows resuming operation at the instruction next > to the idle-instruction. > > Acked-by: Balbir Singh <bsingharora@gmail.com> > Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com> Series applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/823b7bd5156a93872d9561b3f033df cheers
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