Commit 0850ae49 authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by Jakub Kicinski
Browse files

net: airoha: npu: Add airoha_npu_soc_data struct



Introduce airoha_npu_soc_data structure in order to generalize per-SoC
NPU firmware info. Introduce airoha_npu_load_firmware utility routine.
This is a preliminary patch in order to introduce AN7583 NPU support.

Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: default avatarSimon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20251013-airoha-npu-7583-v3-2-00f748b5a0c7@kernel.org


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 9fbafbfa
Loading
Loading
Loading
Loading
+51 −26
Original line number Diff line number Diff line
@@ -103,6 +103,16 @@ enum {
	QDMA_WAN_PON_XDSL,
};

struct airoha_npu_fw {
	const char *name;
	int max_size;
};

struct airoha_npu_soc_data {
	struct airoha_npu_fw fw_rv32;
	struct airoha_npu_fw fw_data;
};

#define MBOX_MSG_FUNC_ID	GENMASK(14, 11)
#define MBOX_MSG_STATIC_BUF	BIT(5)
#define MBOX_MSG_STATUS		GENMASK(4, 2)
@@ -182,49 +192,53 @@ static int airoha_npu_send_msg(struct airoha_npu *npu, int func_id,
	return ret;
}

static int airoha_npu_run_firmware(struct device *dev, void __iomem *base,
				   struct resource *res)
static int airoha_npu_load_firmware(struct device *dev, void __iomem *addr,
				    const struct airoha_npu_fw *fw_info)
{
	const struct firmware *fw;
	void __iomem *addr;
	int ret;

	ret = request_firmware(&fw, NPU_EN7581_FIRMWARE_RV32, dev);
	ret = request_firmware(&fw, fw_info->name, dev);
	if (ret)
		return ret == -ENOENT ? -EPROBE_DEFER : ret;

	if (fw->size > NPU_EN7581_FIRMWARE_RV32_MAX_SIZE) {
	if (fw->size > fw_info->max_size) {
		dev_err(dev, "%s: fw size too overlimit (%zu)\n",
			NPU_EN7581_FIRMWARE_RV32, fw->size);
			fw_info->name, fw->size);
		ret = -E2BIG;
		goto out;
	}

	addr = devm_ioremap_resource(dev, res);
	if (IS_ERR(addr)) {
		ret = PTR_ERR(addr);
		goto out;
	}

	memcpy_toio(addr, fw->data, fw->size);
out:
	release_firmware(fw);

	ret = request_firmware(&fw, NPU_EN7581_FIRMWARE_DATA, dev);
	if (ret)
		return ret == -ENOENT ? -EPROBE_DEFER : ret;

	if (fw->size > NPU_EN7581_FIRMWARE_DATA_MAX_SIZE) {
		dev_err(dev, "%s: fw size too overlimit (%zu)\n",
			NPU_EN7581_FIRMWARE_DATA, fw->size);
		ret = -E2BIG;
		goto out;
	return ret;
}

	memcpy_toio(base + REG_NPU_LOCAL_SRAM, fw->data, fw->size);
out:
	release_firmware(fw);
static int airoha_npu_run_firmware(struct device *dev, void __iomem *base,
				   struct resource *res)
{
	const struct airoha_npu_soc_data *soc;
	void __iomem *addr;
	int ret;

	soc = of_device_get_match_data(dev);
	if (!soc)
		return -EINVAL;

	addr = devm_ioremap_resource(dev, res);
	if (IS_ERR(addr))
		return PTR_ERR(addr);

	/* Load rv32 npu firmware */
	ret = airoha_npu_load_firmware(dev, addr, &soc->fw_rv32);
	if (ret)
		return ret;

	/* Load data npu firmware */
	return airoha_npu_load_firmware(dev, base + REG_NPU_LOCAL_SRAM,
					&soc->fw_data);
}

static irqreturn_t airoha_npu_mbox_handler(int irq, void *npu_instance)
@@ -597,8 +611,19 @@ void airoha_npu_put(struct airoha_npu *npu)
}
EXPORT_SYMBOL_GPL(airoha_npu_put);

static const struct airoha_npu_soc_data en7581_npu_soc_data = {
	.fw_rv32 = {
		.name = NPU_EN7581_FIRMWARE_RV32,
		.max_size = NPU_EN7581_FIRMWARE_RV32_MAX_SIZE,
	},
	.fw_data = {
		.name = NPU_EN7581_FIRMWARE_DATA,
		.max_size = NPU_EN7581_FIRMWARE_DATA_MAX_SIZE,
	},
};

static const struct of_device_id of_airoha_npu_match[] = {
	{ .compatible = "airoha,en7581-npu" },
	{ .compatible = "airoha,en7581-npu", .data = &en7581_npu_soc_data },
	{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, of_airoha_npu_match);