From 45e261ac190f26ea6b1286c7153b5ef9481f454f Mon Sep 17 00:00:00 2001 From: Deepak Nibade Date: Thu, 26 Feb 2015 16:47:06 +0530 Subject: gpu: nvgpu: add flag for CAR reset in do_idle() Add "force_reset" flag to __gk20a_do_idle() For real world use cases like VPR resizing, we cannot wait for railgate_delay (which is 500 mS). Hence use CAR reset for this use case. (this is done via gk20a_do_idle() API with force_reset = true) Some of the test cases make use of sysfs "force_idle" and they expect GPU to be into really railgated state and not in CAR reset. Hence when called from sysfs, set force_reset = false. When global flag "force_reset_in_do_idle" is set, it will override local flags and force CAR reset case. This is desired in cases where railgating is not enabled Also, set force_reset_in_do_idle = false for GM20B since railgating has been enabled for GM20B Bug 1592997 Change-Id: I6c5af2977c7211ef82551a86a7c1eb51b8ccee60 Signed-off-by: Deepak Nibade Reviewed-on: http://git-master/r/711615 Reviewed-by: Terje Bergstrom Tested-by: Terje Bergstrom --- drivers/gpu/nvgpu/gk20a/gk20a.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/gpu/nvgpu/gk20a/gk20a.h') diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h index ba7c7e97..acee2e48 100644 --- a/drivers/gpu/nvgpu/gk20a/gk20a.h +++ b/drivers/gpu/nvgpu/gk20a/gk20a.h @@ -776,7 +776,7 @@ void gk20a_idle(struct platform_device *pdev); void gk20a_disable(struct gk20a *g, u32 units); void gk20a_enable(struct gk20a *g, u32 units); void gk20a_reset(struct gk20a *g, u32 units); -int __gk20a_do_idle(struct platform_device *pdev); +int __gk20a_do_idle(struct platform_device *pdev, bool force_reset); int __gk20a_do_unidle(struct platform_device *pdev); const struct firmware * -- cgit v1.2.2