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Message-ID: <20251014094337.1009601-11-karunika.choo@arm.com>
Date: Tue, 14 Oct 2025 10:43:37 +0100
From: Karunika Choo <karunika.choo@....com>
To: dri-devel@...ts.freedesktop.org
Cc: nd@....com,
Boris Brezillon <boris.brezillon@...labora.com>,
Steven Price <steven.price@....com>,
Liviu Dudau <liviu.dudau@....com>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
David Airlie <airlied@...il.com>,
Simona Vetter <simona@...ll.ch>,
linux-kernel@...r.kernel.org
Subject: [PATCH v1 10/10] drm/panthor: Add support for Mali-G1 GPUs
Add support for Mali-G1 GPUs (CSF architecture v14), introducing a new
panthor_hw_arch_v14 entry with reset and L2 power management operations
via the PWR_CONTROL block.
Mali-G1 introduces a dedicated PWR_CONTROL block for managing resets and
power domains. panthor_gpu_info_init() is updated to use this block for
L2, tiler, and shader domain present register reads.
Signed-off-by: Karunika Choo <karunika.choo@....com>
---
drivers/gpu/drm/panthor/panthor_fw.c | 1 +
drivers/gpu/drm/panthor/panthor_hw.c | 30 ++++++++++++++++++++++++++++
2 files changed, 31 insertions(+)
diff --git a/drivers/gpu/drm/panthor/panthor_fw.c b/drivers/gpu/drm/panthor/panthor_fw.c
index c1b2fba311d8..dd5ffbea8cd8 100644
--- a/drivers/gpu/drm/panthor/panthor_fw.c
+++ b/drivers/gpu/drm/panthor/panthor_fw.c
@@ -1493,3 +1493,4 @@ MODULE_FIRMWARE("arm/mali/arch10.12/mali_csffw.bin");
MODULE_FIRMWARE("arm/mali/arch11.8/mali_csffw.bin");
MODULE_FIRMWARE("arm/mali/arch12.8/mali_csffw.bin");
MODULE_FIRMWARE("arm/mali/arch13.8/mali_csffw.bin");
+MODULE_FIRMWARE("arm/mali/arch14.8/mali_csffw.bin");
diff --git a/drivers/gpu/drm/panthor/panthor_hw.c b/drivers/gpu/drm/panthor/panthor_hw.c
index 77fd2c56e69f..7a47414d246e 100644
--- a/drivers/gpu/drm/panthor/panthor_hw.c
+++ b/drivers/gpu/drm/panthor/panthor_hw.c
@@ -4,6 +4,7 @@
#include "panthor_device.h"
#include "panthor_gpu.h"
#include "panthor_hw.h"
+#include "panthor_pwr.h"
#include "panthor_regs.h"
#define GPU_PROD_ID_MAKE(arch_major, prod_major) \
@@ -29,12 +30,28 @@ static struct panthor_hw panthor_hw_arch_v10 = {
},
};
+static struct panthor_hw panthor_hw_arch_v14 = {
+ .features = {
+ BIT(PANTHOR_HW_FEATURE_PWR_CONTROL)
+ },
+ .ops = {
+ .soft_reset = panthor_pwr_reset_soft,
+ .l2_power_off = panthor_pwr_l2_power_off,
+ .l2_power_on = panthor_pwr_l2_power_on,
+ },
+};
+
static struct panthor_hw_entry panthor_hw_match[] = {
{
.arch_min = 10,
.arch_max = 13,
.hwdev = &panthor_hw_arch_v10,
},
+ {
+ .arch_min = 14,
+ .arch_max = 14,
+ .hwdev = &panthor_hw_arch_v14,
+ },
};
static char *get_gpu_model_name(struct panthor_device *ptdev)
@@ -82,6 +99,12 @@ static char *get_gpu_model_name(struct panthor_device *ptdev)
fallthrough;
case GPU_PROD_ID_MAKE(13, 1):
return "Mali-G625";
+ case GPU_PROD_ID_MAKE(14, 0):
+ return "Mali-G1-Ultra";
+ case GPU_PROD_ID_MAKE(14, 1):
+ return "Mali-G1-Premium";
+ case GPU_PROD_ID_MAKE(14, 3):
+ return "Mali-G1-Pro";
}
return "(Unknown Mali GPU)";
@@ -114,6 +137,13 @@ static void panthor_gpu_info_init(struct panthor_device *ptdev)
/* Introduced in arch 11.x */
ptdev->gpu_info.gpu_features = gpu_read64(ptdev, GPU_FEATURES);
+
+ /* Introduced in arch 14.x */
+ if (panthor_hw_has_feature(ptdev, PANTHOR_HW_FEATURE_PWR_CONTROL)) {
+ ptdev->gpu_info.l2_present = gpu_read64(ptdev, PWR_L2_PRESENT);
+ ptdev->gpu_info.tiler_present = gpu_read64(ptdev, PWR_TILER_PRESENT);
+ ptdev->gpu_info.shader_present = gpu_read64(ptdev, PWR_SHADER_PRESENT);
+ }
}
static void panthor_hw_info_init(struct panthor_device *ptdev)
--
2.49.0
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