[PATCH v1 10/10] drm/panthor: Add support for Mali-G1 GPUs

[Karunika Choo]

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@xxxxxxx>
---
 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