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drm/etnaviv: Disable SH_EU clock gating on VIPNano-Si+

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Disable SH_EU clock gating for the VIPNano-Si+ NPU on i.MX8MP
and for other affected core revisions.
Taken from linux-imx lf-6.1.36-2.1.0, specifically [1].

[1] https://github.com/nxp-imx/linux-imx/blob/lf-6.1.36-2.1.0/drivers/mxc/gpu-viv/hal/kernel/arch/gc_hal_kernel_hardware.c#L2747-L2761

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
This commit is contained in:
Philipp Zabel
2024-01-25 12:07:08 +01:00
committed by Lucas Stach
parent 37d5927a85
commit e843e87abb
1 changed files with 6 additions and 0 deletions
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drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+6
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@@ -654,6 +654,12 @@ static void etnaviv_gpu_enable_mlcg(struct etnaviv_gpu *gpu)
pmc |= VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_SE |
VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_RA;
/* Disable SH_EU clock gating on affected core revisions. */
if (etnaviv_is_model_rev(gpu, 0x8000, 0x7200) ||
etnaviv_is_model_rev(gpu, 0x8000, 0x8002) ||
etnaviv_is_model_rev(gpu, 0x9200, 0x6304))
pmc |= VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_SH_EU;
pmc |= VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_RA_HZ;
pmc |= VIVS_PM_MODULE_CONTROLS_DISABLE_MODULE_CLOCK_GATING_RA_EZ;