[PATCH v1 5/7] net: ipa: Add support for IPA on MSM8998

[AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>]

MSM8998 features IPA v3.1 (GSI v1.0): add the required configuration
data for it.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
---
 drivers/net/ipa/Makefile           |   3 +-
 drivers/net/ipa/ipa_data-msm8998.c | 407 +++++++++++++++++++++++++++++
 drivers/net/ipa/ipa_data.h         |   5 +
 drivers/net/ipa/ipa_main.c         |   4 +
 4 files changed, 418 insertions(+), 1 deletion(-)
 create mode 100644 drivers/net/ipa/ipa_data-msm8998.c

diff --git a/drivers/net/ipa/Makefile b/drivers/net/ipa/Makefile
index afe5df1e6eee..4a6f4053dce2 100644
--- a/drivers/net/ipa/Makefile
+++ b/drivers/net/ipa/Makefile
@@ -9,4 +9,5 @@ ipa-y			:=	ipa_main.o ipa_clock.o ipa_reg.o ipa_mem.o \
 				ipa_endpoint.o ipa_cmd.o ipa_modem.o \
 				ipa_qmi.o ipa_qmi_msg.o
 
-ipa-y			+=	ipa_data-sdm845.o ipa_data-sc7180.o
+ipa-y			+=	ipa_data-msm8998.o ipa_data-sdm845.o \
+				ipa_data-sc7180.o
diff --git a/drivers/net/ipa/ipa_data-msm8998.c b/drivers/net/ipa/ipa_data-msm8998.c
new file mode 100644
index 000000000000..90e724468e40
--- /dev/null
+++ b/drivers/net/ipa/ipa_data-msm8998.c
@@ -0,0 +1,407 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
+ * Copyright (C) 2019-2020 Linaro Ltd.
+ * Coypright (C) 2021, AngeloGioacchino Del Regno
+ *                     <angelogioacchino.delregno@somainline.org>
+ */
+
+#include <linux/log2.h>
+
+#include "gsi.h"
+#include "ipa_data.h"
+#include "ipa_endpoint.h"
+#include "ipa_mem.h"
+
+/* Endpoint configuration for the MSM8998 SoC. */
+static const struct ipa_gsi_endpoint_data ipa_gsi_endpoint_data[] = {
+	[IPA_ENDPOINT_AP_COMMAND_TX] = {
+		.ee_id		= GSI_EE_AP,
+		.channel_id	= 6,
+		.endpoint_id	= 22,
+		.toward_ipa	= true,
+		.channel = {
+			.tre_count	= 256,
+			.event_count	= 256,
+			.tlv_count	= 18,
+		},
+		.endpoint = {
+			.seq_type	= IPA_SEQ_DMA_ONLY,
+			.config = {
+				.resource_group	= 1,
+				.dma_mode	= true,
+				.dma_endpoint	= IPA_ENDPOINT_AP_LAN_RX,
+			},
+		},
+	},
+	[IPA_ENDPOINT_AP_LAN_RX] = {
+		.ee_id		= GSI_EE_AP,
+		.channel_id	= 7,
+		.endpoint_id	= 15,
+		.toward_ipa	= false,
+		.channel = {
+			.tre_count	= 256,
+			.event_count	= 256,
+			.tlv_count	= 8,
+		},
+		.endpoint = {
+			.seq_type	= IPA_SEQ_INVALID,
+			.config = {
+				.resource_group	= 1,
+				.aggregation	= true,
+				.status_enable	= true,
+				.rx = {
+					.pad_align	= ilog2(sizeof(u32)),
+				},
+			},
+		},
+	},
+	[IPA_ENDPOINT_AP_MODEM_TX] = {
+		.ee_id		= GSI_EE_AP,
+		.channel_id	= 5,
+		.endpoint_id	= 3,
+		.toward_ipa	= true,
+		.channel = {
+			.tre_count	= 512,
+			.event_count	= 512,
+			.tlv_count	= 16,
+		},
+		.endpoint = {
+			.filter_support	= true,
+			.seq_type	=
+				IPA_SEQ_2ND_PKT_PROCESS_PASS_NO_DEC_UCP,
+			.config = {
+				.resource_group	= 1,
+				.checksum	= true,
+				.qmap		= true,
+				.status_enable	= true,
+				.tx = {
+					.status_endpoint =
+						IPA_ENDPOINT_MODEM_AP_RX,
+				},
+			},
+		},
+	},
+	[IPA_ENDPOINT_AP_MODEM_RX] = {
+		.ee_id		= GSI_EE_AP,
+		.channel_id	= 8,
+		.endpoint_id	= 16,
+		.toward_ipa	= false,
+		.channel = {
+			.tre_count	= 256,
+			.event_count	= 256,
+			.tlv_count	= 8,
+		},
+		.endpoint = {
+			.seq_type	= IPA_SEQ_INVALID,
+			.config = {
+				.resource_group	= 1,
+				.checksum	= true,
+				.qmap		= true,
+				.aggregation	= true,
+				.rx = {
+					.aggr_close_eof	= true,
+				},
+			},
+		},
+	},
+	[IPA_ENDPOINT_MODEM_COMMAND_TX] = {
+		.ee_id		= GSI_EE_MODEM,
+		.channel_id	= 1,
+		.endpoint_id	= 6,
+		.toward_ipa	= true,
+	},
+	[IPA_ENDPOINT_MODEM_LAN_TX] = {
+		.ee_id		= GSI_EE_MODEM,
+		.channel_id	= 4,
+		.endpoint_id	= 9,
+		.toward_ipa	= true,
+		.endpoint = {
+			.filter_support	= true,
+		},
+	},
+	[IPA_ENDPOINT_MODEM_LAN_RX] = {
+		.ee_id		= GSI_EE_MODEM,
+		.channel_id	= 6,
+		.endpoint_id	= 19,
+		.toward_ipa	= false,
+	},
+	[IPA_ENDPOINT_MODEM_AP_TX] = {
+		.ee_id		= GSI_EE_MODEM,
+		.channel_id	= 0,
+		.endpoint_id	= 5,
+		.toward_ipa	= true,
+		.endpoint = {
+			.filter_support	= true,
+		},
+	},
+	[IPA_ENDPOINT_MODEM_AP_RX] = {
+		.ee_id		= GSI_EE_MODEM,
+		.channel_id	= 5,
+		.endpoint_id	= 18,
+		.toward_ipa	= false,
+	},
+};
+
+/* For the MSM8998, resource groups are allocated this way:
+ *              SRC     DST
+ *   group 0:	UL      UL
+ *   group 1:	DL      DL/DPL
+ */
+static const struct ipa_resource_src ipa_resource_src[] = {
+	{
+		.type = IPA_RESOURCE_TYPE_SRC_PKT_CONTEXTS,
+		.limits[0] = {
+			.min = 3,
+			.max = 255,
+		},
+		.limits[1] = {
+			.min = 3,
+			.max = 255,
+		},
+	},
+	{
+		.type = IPA_RESOURCE_TYPE_SRC_HDR_SECTORS,
+		.limits[0] = {
+			.min = 0,
+			.max = 255,
+		},
+		.limits[1] = {
+			.min = 0,
+			.max = 255,
+		},
+	},
+	{
+		.type = IPA_RESOURCE_TYPE_SRC_HDRI1_BUFFER,
+		.limits[0] = {
+			.min = 0,
+			.max = 255,
+		},
+		.limits[1] = {
+			.min = 0,
+			.max = 255,
+		},
+	},
+	{
+		.type = IPA_RESOURCE_TYPE_SRC_DESCRIPTOR_LISTS,
+		.limits[0] = {
+			.min = 14,
+			.max = 14,
+		},
+		.limits[1] = {
+			.min = 16,
+			.max = 16,
+		},
+	},
+	{
+		.type = IPA_RESOURCE_TYPE_SRC_DESCRIPTOR_BUFF,
+		.limits[0] = {
+			.min = 19,
+			.max = 19,
+		},
+		.limits[1] = {
+			.min = 26,
+			.max = 26,
+		},
+	},
+	{
+		.type = IPA_RESOURCE_TYPE_SRC_HDRI2_BUFFERS,
+		.limits[0] = {
+			.min = 0,
+			.max = 255,
+		},
+		.limits[1] = {
+			.min = 0,
+			.max = 255,
+		},
+	},
+	{
+		.type = IPA_RESOURCE_TYPE_SRC_HPS_DMARS,
+		.limits[0] = {
+			.min = 0,
+			.max = 255,
+		},
+		.limits[1] = {
+			.min = 0,
+			.max = 255,
+		},
+	},
+	{
+		.type = IPA_RESOURCE_TYPE_SRC_ACK_ENTRIES,
+		.limits[0] = {
+			.min = 14,
+			.max = 14,
+		},
+		.limits[1] = {
+			.min = 16,
+			.max = 16,
+		},
+	},
+};
+
+static const struct ipa_resource_dst ipa_resource_dst[] = {
+	{
+		.type = IPA_RESOURCE_TYPE_DST_DATA_SECTORS,
+		.limits[0] = {
+			.min = 2,
+			.max = 2,
+		},
+		.limits[1] = {
+			.min = 3,
+			.max = 3,
+		},
+	},
+	{
+		.type = IPA_RESOURCE_TYPE_DST_DATA_SECTOR_LISTS,
+		.limits[0] = {
+			.min = 0,
+			.max = 255,
+		},
+		.limits[1] = {
+			.min = 0,
+			.max = 255,
+		},
+	},
+	{
+		.type = IPA_RESOURCE_TYPE_DST_DPS_DMARS,
+		.limits[0] = {
+			.min = 2,
+			.max = 63,
+		},
+		.limits[1] = {
+			.min = 1,
+			.max = 63,
+		},
+	},
+};
+
+/* Resource configuration for the MSM8998 SoC. */
+static const struct ipa_resource_data ipa_resource_data = {
+	.resource_src_count	= ARRAY_SIZE(ipa_resource_src),
+	.resource_src		= ipa_resource_src,
+	.resource_dst_count	= ARRAY_SIZE(ipa_resource_dst),
+	.resource_dst		= ipa_resource_dst,
+};
+
+/* IPA-resident memory region configuration for the MSM8998 SoC. */
+static const struct ipa_mem ipa_mem_local_data[] = {
+	[IPA_MEM_UC_SHARED] = {
+		.offset		= 0x0000,
+		.size		= 0x0080,
+		.canary_count	= 0,
+	},
+	[IPA_MEM_UC_INFO] = {
+		.offset		= 0x0080,
+		.size		= 0x0200,
+		.canary_count	= 0,
+	},
+	[IPA_MEM_V4_FILTER_HASHED] = {
+		.offset		= 0x0288,
+		.size		= 0x0078,
+		.canary_count	= 2,
+	},
+	[IPA_MEM_V4_FILTER] = {
+		.offset		= 0x0308,
+		.size		= 0x0078,
+		.canary_count	= 2,
+	},
+	[IPA_MEM_V6_FILTER_HASHED] = {
+		.offset		= 0x0388,
+		.size		= 0x0078,
+		.canary_count	= 2,
+	},
+	[IPA_MEM_V6_FILTER] = {
+		.offset		= 0x0408,
+		.size		= 0x0078,
+		.canary_count	= 2,
+	},
+	[IPA_MEM_V4_ROUTE_HASHED] = {
+		.offset		= 0x0488,
+		.size		= 0x0078,
+		.canary_count	= 2,
+	},
+	[IPA_MEM_V4_ROUTE] = {
+		.offset		= 0x0508,
+		.size		= 0x0078,
+		.canary_count	= 2,
+	},
+	[IPA_MEM_V6_ROUTE_HASHED] = {
+		.offset		= 0x0588,
+		.size		= 0x0078,
+		.canary_count	= 2,
+	},
+	[IPA_MEM_V6_ROUTE] = {
+		.offset		= 0x0608,
+		.size		= 0x0078,
+		.canary_count	= 2,
+	},
+	[IPA_MEM_MODEM_HEADER] = {
+		.offset		= 0x0688,
+		.size		= 0x0140,
+		.canary_count	= 2,
+	},
+	[IPA_MEM_AP_HEADER] = {
+		.offset		= 0x07c8,
+		.size		= 0x0000,
+		.canary_count	= 0,
+	},
+	[IPA_MEM_MODEM_PROC_CTX] = {
+		.offset		= 0x07d0,
+		.size		= 0x0200,
+		.canary_count	= 2,
+	},
+	[IPA_MEM_AP_PROC_CTX] = {
+		.offset		= 0x09d0,
+		.size		= 0x0200,
+		.canary_count	= 0,
+	},
+	[IPA_MEM_MODEM] = {
+		.offset		= 0x0bd8,
+		.size		= 0x1424,
+		.canary_count	= 0,
+	},
+	[IPA_MEM_UC_EVENT_RING] = { /* end_ofst */
+		.offset		= 0x2000,
+		.size		= 0,
+		.canary_count	= 1,
+	},
+};
+
+static struct ipa_mem_data ipa_mem_data = {
+	.local_count	= ARRAY_SIZE(ipa_mem_local_data),
+	.local		= ipa_mem_local_data,
+	.imem_addr	= 0x146bd000,
+	.imem_size	= 0x00002000,
+	.smem_id	= 497,
+	.smem_size	= 0x00002000,
+};
+
+static struct ipa_clock_data ipa_clock_data = {
+	.core_clock_rate	= 75 * 1000 * 1000,	/* Hz */
+	/* Interconnect rates are in 1000 byte/second units */
+	.interconnect = {
+		[IPA_INTERCONNECT_MEMORY] = {
+			.peak_rate	= 640000,	/* 640 MBps */
+			.average_rate	= 80000,	/* 80 MBps */
+		},
+		/* Average rate is unused for the next two interconnects */
+		[IPA_INTERCONNECT_IMEM] = {
+			.peak_rate	= 640000,	/* 350 MBps */
+			.average_rate	= 0,		/* unused */
+		},
+		[IPA_INTERCONNECT_CONFIG] = {
+			.peak_rate	= 80000,	/* 40 MBps */
+			.average_rate	= 0,		/* unused */
+		},
+	},
+};
+
+/* Configuration data for the MSM8998 SoC. */
+const struct ipa_data ipa_data_msm8998 = {
+	.version	= IPA_VERSION_3_1,
+	.endpoint_count	= ARRAY_SIZE(ipa_gsi_endpoint_data),
+	.endpoint_data	= ipa_gsi_endpoint_data,
+	.resource_data	= &ipa_resource_data,
+	.mem_data	= &ipa_mem_data,
+	.clock_data	= &ipa_clock_data,
+};
diff --git a/drivers/net/ipa/ipa_data.h b/drivers/net/ipa/ipa_data.h
index 0ed5ffe2b8da..da2141f6888f 100644
--- a/drivers/net/ipa/ipa_data.h
+++ b/drivers/net/ipa/ipa_data.h
@@ -179,8 +179,11 @@ struct ipa_gsi_endpoint_data {
 /** enum ipa_resource_type_src - source resource types */
 enum ipa_resource_type_src {
 	IPA_RESOURCE_TYPE_SRC_PKT_CONTEXTS,
+	IPA_RESOURCE_TYPE_SRC_HDR_SECTORS,
+	IPA_RESOURCE_TYPE_SRC_HDRI1_BUFFER,
 	IPA_RESOURCE_TYPE_SRC_DESCRIPTOR_LISTS,
 	IPA_RESOURCE_TYPE_SRC_DESCRIPTOR_BUFF,
+	IPA_RESOURCE_TYPE_SRC_HDRI2_BUFFERS,
 	IPA_RESOURCE_TYPE_SRC_HPS_DMARS,
 	IPA_RESOURCE_TYPE_SRC_ACK_ENTRIES,
 };
@@ -188,6 +191,7 @@ enum ipa_resource_type_src {
 /** enum ipa_resource_type_dst - destination resource types */
 enum ipa_resource_type_dst {
 	IPA_RESOURCE_TYPE_DST_DATA_SECTORS,
+	IPA_RESOURCE_TYPE_DST_DATA_SECTOR_LISTS,
 	IPA_RESOURCE_TYPE_DST_DPS_DMARS,
 };
 
@@ -304,6 +308,7 @@ struct ipa_data {
 	const struct ipa_clock_data *clock_data;
 };
 
+extern const struct ipa_data ipa_data_msm8998;
 extern const struct ipa_data ipa_data_sdm845;
 extern const struct ipa_data ipa_data_sc7180;
 
diff --git a/drivers/net/ipa/ipa_main.c b/drivers/net/ipa/ipa_main.c
index be191993fbec..33a7d483c5e0 100644
--- a/drivers/net/ipa/ipa_main.c
+++ b/drivers/net/ipa/ipa_main.c
@@ -721,6 +721,10 @@ static int ipa_firmware_load(struct device *dev)
 }
 
 static const struct of_device_id ipa_match[] = {
+	{
+		.compatible	= "qcom,msm8998-ipa",
+		.data		= &ipa_data_msm8998,
+	},
 	{
 		.compatible	= "qcom,sdm845-ipa",
 		.data		= &ipa_data_sdm845,
-- 
2.30.0