[PATCH] drm/amd/pm: Add get_gfx_off_status interface

[Liu, Aaron]

[AMD Official Use Only - General]

Shikai,

Yellow carp's SMUIO is 13_0_1. 
#define regSMUIO_GFX_MISC_CNTL                                                                          0x00c5

This register in your patch is from smuio_13_0_2_offset.h and this register's value is different to 13_0_1.
#define regSMUIO_GFX_MISC_CNTL                                                                          0x00d1


> -----Original Message-----
> From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of
> shikai.guo at amd.com
> Sent: Thursday, July 21, 2022 4:58 PM
> To: amd-gfx at lists.freedesktop.org
> Cc: Deucher, Alexander <Alexander.Deucher at amd.com>; Liang, Prike
> <Prike.Liang at amd.com>; Quan, Evan <Evan.Quan at amd.com>; Guo, Shikai
> <Shikai.Guo at amd.com>
> Subject: [PATCH] drm/amd/pm: Add get_gfx_off_status interface
> 
> From: Shikai Guo <Shikai.Guo at amd.com>
> 
> add get_gfx_off_status interface to yellow_carp_ppt_funcs structure.
> 
> Signed-off-by: Shikai Guo <shikai.guo at amd.com>
> ---
>  .../drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c  | 30
> +++++++++++++++++++
>  1 file changed, 30 insertions(+)
> 
> diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c
> b/drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c
> index 70cbc46341a3..2e39b629e7e6 100644
> --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c
> +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c
> @@ -31,6 +31,7 @@
>  #include "smu_v13_0_1_ppsmc.h"
>  #include "smu_v13_0_1_pmfw.h"
>  #include "smu_cmn.h"
> +#include "asic_reg/smuio/smuio_13_0_2_offset.h"
> 
>  /*
>   * DO NOT use these for err/warn/info/debug messages.
> @@ -42,6 +43,9 @@
>  #undef pr_info
>  #undef pr_debug
> 
> +#define SMUIO_GFX_MISC_CNTL__PWR_GFXOFF_STATUS_MASK
> 	0x00000006L
> +#define SMUIO_GFX_MISC_CNTL__PWR_GFXOFF_STATUS__SHIFT
> 		0x1
> +
>  #define FEATURE_MASK(feature) (1ULL << feature)  #define
> SMC_DPM_FEATURE ( \
>  	FEATURE_MASK(FEATURE_CCLK_DPM_BIT) | \ @@ -587,6 +591,31
> @@ static ssize_t yellow_carp_get_gpu_metrics(struct smu_context *smu,
>  	return sizeof(struct gpu_metrics_v2_1);  }
> 
> +/**
> + * yellow_carp_get_gfxoff_status - get gfxoff status
> + *
> + * @smu: smu_context pointer
> + *
> + * This function will be used to get gfxoff status
> + *
> + * Returns 0=GFXOFF(default).
> + * Returns 1=Transition out of GFX State.
> + * Returns 2=Not in GFXOFF.
> + * Returns 3=Transition into GFXOFF.
> + */
> +static uint32_t yellow_carp_get_gfxoff_status(struct smu_context *smu)
> +{
> +	uint32_t reg;
> +	uint32_t gfxOff_Status = 0;
> +	struct amdgpu_device *adev = smu->adev;
> +
> +	reg = RREG32_SOC15(SMUIO, 0, regSMUIO_GFX_MISC_CNTL);
> +	gfxOff_Status = (reg &
> SMUIO_GFX_MISC_CNTL__PWR_GFXOFF_STATUS_MASK)
> +		>> SMUIO_GFX_MISC_CNTL__PWR_GFXOFF_STATUS__SHIFT;
> +
> +	return gfxOff_Status;
> +}
> +
>  static int yellow_carp_set_default_dpm_tables(struct smu_context *smu)  {
>  	struct smu_table_context *smu_table = &smu->smu_table; @@ -
> 1186,6 +1215,7 @@ static const struct pptable_funcs yellow_carp_ppt_funcs
> = {
>  	.get_pp_feature_mask = smu_cmn_get_pp_feature_mask,
>  	.set_driver_table_location = smu_v13_0_set_driver_table_location,
>  	.gfx_off_control = smu_v13_0_gfx_off_control,
> +	.get_gfx_off_status = yellow_carp_get_gfxoff_status,
>  	.post_init = yellow_carp_post_smu_init,
>  	.mode2_reset = yellow_carp_mode2_reset,
>  	.get_dpm_ultimate_freq = yellow_carp_get_dpm_ultimate_freq,
> --
> 2.25.1