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drm/nouveau/clk: allow non-blocking for nouveau_clock_astate()
There might be some callers of nouveau_clock_astate(), and they are from inetrrupt context. So we must ensure that this function can be atomic in that condition. This patch adds one parameter which is subsequently passed to nouveau_pstate_calc(). Therefore we can choose whether we want to wait for the pstate work's completion or not. Signed-off-by: Vince Hsu <vinceh@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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@ -159,7 +159,7 @@ int nva3_clock_pll_calc(struct nouveau_clock *, struct nvbios_pll *,
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int clk, struct nouveau_pll_vals *);
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int nouveau_clock_ustate(struct nouveau_clock *, int req, int pwr);
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int nouveau_clock_astate(struct nouveau_clock *, int req, int rel);
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int nouveau_clock_astate(struct nouveau_clock *, int req, int rel, bool wait);
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int nouveau_clock_dstate(struct nouveau_clock *, int req, int rel);
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int nouveau_clock_tstate(struct nouveau_clock *, int req, int rel);
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@ -430,13 +430,13 @@ nouveau_clock_ustate(struct nouveau_clock *clk, int req, int pwr)
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}
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int
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nouveau_clock_astate(struct nouveau_clock *clk, int req, int rel)
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nouveau_clock_astate(struct nouveau_clock *clk, int req, int rel, bool wait)
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{
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if (!rel) clk->astate = req;
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if ( rel) clk->astate += rel;
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clk->astate = min(clk->astate, clk->state_nr - 1);
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clk->astate = max(clk->astate, 0);
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return nouveau_pstate_calc(clk, true);
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return nouveau_pstate_calc(clk, wait);
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}
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int
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