From 43195162fbf54b2cc35efe295d2ed072d2bd4048 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Andr=C3=A9=20Almeida?= Date: Mon, 11 Jul 2022 16:34:58 -0300 Subject: [PATCH] drm/amd/pm: Implement get GFXOFF status for vangogh MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Implement function to get current GFXOFF status for vangogh. Signed-off-by: André Almeida Acked-by: Evan Quan Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c | 38 ++++++++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c index e2d8ac9..89504ff 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c @@ -46,6 +46,18 @@ #undef pr_info #undef pr_debug +// Registers related to GFXOFF +// addressBlock: smuio_smuio_SmuSmuioDec +// base address: 0x5a000 +#define mmSMUIO_GFX_MISC_CNTL 0x00c5 +#define mmSMUIO_GFX_MISC_CNTL_BASE_IDX 0 + +//SMUIO_GFX_MISC_CNTL +#define SMUIO_GFX_MISC_CNTL__SMU_GFX_cold_vs_gfxoff__SHIFT 0x0 +#define SMUIO_GFX_MISC_CNTL__PWR_GFXOFF_STATUS__SHIFT 0x1 +#define SMUIO_GFX_MISC_CNTL__SMU_GFX_cold_vs_gfxoff_MASK 0x00000001L +#define SMUIO_GFX_MISC_CNTL__PWR_GFXOFF_STATUS_MASK 0x00000006L + #define FEATURE_MASK(feature) (1ULL << feature) #define SMC_DPM_FEATURE ( \ FEATURE_MASK(FEATURE_CCLK_DPM_BIT) | \ @@ -2045,6 +2057,31 @@ static int vangogh_mode2_reset(struct smu_context *smu) return vangogh_mode_reset(smu, SMU_RESET_MODE_2); } +/** + * vangogh_get_gfxoff_status - Get gfxoff status + * + * @smu: amdgpu_device pointer + * + * Get current gfxoff status + * + * Return: + * * 0 - GFXOFF (default if enabled). + * * 1 - Transition out of GFX State. + * * 2 - Not in GFXOFF. + * * 3 - Transition into GFXOFF. + */ +static u32 vangogh_get_gfxoff_status(struct smu_context *smu) +{ + struct amdgpu_device *adev = smu->adev; + u32 reg, gfxoff_status; + + reg = RREG32_SOC15(SMUIO, 0, mmSMUIO_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 vangogh_get_power_limit(struct smu_context *smu, uint32_t *current_power_limit, uint32_t *default_power_limit, @@ -2199,6 +2236,7 @@ static const struct pptable_funcs vangogh_ppt_funcs = { .post_init = vangogh_post_smu_init, .mode2_reset = vangogh_mode2_reset, .gfx_off_control = smu_v11_0_gfx_off_control, + .get_gfx_off_status = vangogh_get_gfxoff_status, .get_ppt_limit = vangogh_get_ppt_limit, .get_power_limit = vangogh_get_power_limit, .set_power_limit = vangogh_set_power_limit, -- 2.7.4