[PATCH 2/4] drm/panfrost: Add CYCLE_COUNT_START/STOP commands

[Steven Price]

On 27/05/2021 21:38, alyssa.rosenzweig at collabora.com wrote:
> From: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
> 
> Add additional values of GPU_COMMAND required to enable and disable the
> cycle (and timestamp) counters. Values from mali_kbase.
> 
> Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>

Reviewed-by: Steven Price <steven.price at arm.com>

> ---
>  drivers/gpu/drm/panfrost/panfrost_regs.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/gpu/drm/panfrost/panfrost_regs.h b/drivers/gpu/drm/panfrost/panfrost_regs.h
> index eddaa62ad..8ac60de6f 100644
> --- a/drivers/gpu/drm/panfrost/panfrost_regs.h
> +++ b/drivers/gpu/drm/panfrost/panfrost_regs.h
> @@ -46,6 +46,8 @@
>  #define   GPU_CMD_SOFT_RESET		0x01
>  #define   GPU_CMD_PERFCNT_CLEAR		0x03
>  #define   GPU_CMD_PERFCNT_SAMPLE	0x04
> +#define   GPU_CMD_CYCLE_COUNT_START	0x05
> +#define   GPU_CMD_CYCLE_COUNT_STOP	0x06
>  #define   GPU_CMD_CLEAN_CACHES		0x07
>  #define   GPU_CMD_CLEAN_INV_CACHES	0x08
>  #define GPU_STATUS			0x34
>