[PATCH v2 6/6] drm/panfrost: Force AARCH64_4K page table format on MediaTek MT8192

From: Ariel D'Alessandro
Date: Fri Mar 14 2025 - 13:42:00 EST


MediaTek MT8192 SoC has an ARM Mali-G57 MC5 GPU (Valhall-JM). Now that
Panfrost supports AARCH64_4K page table format, let's enable it on this
SoC.

Running glmark2-es2-drm [0] benchmark, reported the same performance
score on both modes Mali LPAE (LEGACY) vs. AARCH64_4K, before and after
this commit. Tested on a Mediatek (MT8395) Genio 1200 EVK board.

[0] https://github.com/glmark2/glmark2

Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@xxxxxxxxxxxxx>
---
drivers/gpu/drm/panfrost/panfrost_drv.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panfrost/panfrost_drv.c
index e854f290858f9..ef30d314b2281 100644
--- a/drivers/gpu/drm/panfrost/panfrost_drv.c
+++ b/drivers/gpu/drm/panfrost/panfrost_drv.c
@@ -836,6 +836,7 @@ static const struct panfrost_compatible mediatek_mt8192_data = {
.num_pm_domains = ARRAY_SIZE(mediatek_mt8192_pm_domains),
.pm_domain_names = mediatek_mt8192_pm_domains,
.pm_features = BIT(GPU_PM_CLK_DIS) | BIT(GPU_PM_VREG_OFF),
+ .gpu_quirks = BIT(GPU_QUIRK_FORCE_AARCH64_PGTABLE),
};

static const struct of_device_id dt_match[] = {
--
2.47.2