diff options
Diffstat (limited to 'drivers/gpu/drm/msm/adreno/a6xx_gmu.c')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c index cb538a262d1c..37927bdd6fbe 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c @@ -423,6 +423,20 @@ static int a6xx_gmu_gfx_rail_on(struct a6xx_gmu *gmu) return a6xx_gmu_set_oob(gmu, GMU_OOB_BOOT_SLUMBER); } +static void a6xx_gemnoc_workaround(struct a6xx_gmu *gmu) +{ + struct a6xx_gpu *a6xx_gpu = container_of(gmu, struct a6xx_gpu, gmu); + struct adreno_gpu *adreno_gpu = &a6xx_gpu->base; + + /* + * GEMNoC can power collapse whilst the GPU is being powered down, resulting + * in the power down sequence not being fully executed. That in turn can + * prevent CX_GDSC from collapsing. Assert Qactive to avoid this. + */ + if (adreno_is_a621(adreno_gpu) || adreno_is_7c3(adreno_gpu)) + gmu_write(gmu, REG_A6XX_GMU_AO_AHB_FENCE_CTRL, BIT(0)); +} + /* Let the GMU know that we are about to go into slumber */ static int a6xx_gmu_notify_slumber(struct a6xx_gmu *gmu) { @@ -456,6 +470,8 @@ static int a6xx_gmu_notify_slumber(struct a6xx_gmu *gmu) } out: + a6xx_gemnoc_workaround(gmu); + /* Put fence into allow mode */ gmu_write(gmu, REG_A6XX_GMU_AO_AHB_FENCE_CTRL, 0); return ret; @@ -525,8 +541,7 @@ static void a6xx_gmu_rpmh_init(struct a6xx_gmu *gmu) if (IS_ERR(pdcptr)) goto err; - if (adreno_is_a650(adreno_gpu) || - adreno_is_a660_family(adreno_gpu) || + if (adreno_is_a650_family(adreno_gpu) || adreno_is_a7xx(adreno_gpu)) pdc_in_aop = true; else if (adreno_is_a618(adreno_gpu) || adreno_is_a640_family(adreno_gpu)) @@ -946,6 +961,8 @@ static void a6xx_gmu_force_off(struct a6xx_gmu *gmu) /* Force off SPTP in case the GMU is managing it */ a6xx_sptprac_disable(gmu); + a6xx_gemnoc_workaround(gmu); + /* Make sure there are no outstanding RPMh votes */ a6xx_gmu_rpmh_off(gmu); |