remoteproc: Move qcom_mdt_loader into drivers/soc/qcom

With the remoteproc parts cleaned out of the MDT loader we can move it
to drivers/soc/qcom.

Acked-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

7 files changed, 3 insertions, 225 deletions

diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
index 71ea703..555dba0 100644
--- a/drivers/remoteproc/Kconfig
+++ b/drivers/remoteproc/Kconfig
@@ -87,9 +87,6 @@ config QCOM_ADSP_PIL
 config QCOM_RPROC_COMMON
 	tristate
 
-config QCOM_MDT_LOADER
-	tristate
-
 config QCOM_Q6V5_PIL
 	tristate "Qualcomm Hexagon V5 Peripherial Image Loader"
 	depends on OF && ARCH_QCOM
diff --git a/drivers/remoteproc/Makefile b/drivers/remoteproc/Makefile
index d4f9525..ffc5e43 100644
--- a/drivers/remoteproc/Makefile
+++ b/drivers/remoteproc/Makefile
@@ -12,7 +12,6 @@ obj-$(CONFIG_OMAP_REMOTEPROC)		+= omap_remoteproc.o
 obj-$(CONFIG_WKUP_M3_RPROC)		+= wkup_m3_rproc.o
 obj-$(CONFIG_DA8XX_REMOTEPROC)		+= da8xx_remoteproc.o
 obj-$(CONFIG_QCOM_ADSP_PIL)		+= qcom_adsp_pil.o
-obj-$(CONFIG_QCOM_MDT_LOADER)		+= qcom_mdt_loader.o
 obj-$(CONFIG_QCOM_RPROC_COMMON)		+= qcom_common.o
 obj-$(CONFIG_QCOM_Q6V5_PIL)		+= qcom_q6v5_pil.o
 obj-$(CONFIG_QCOM_WCNSS_PIL)		+= qcom_wcnss_pil.o
diff --git a/drivers/remoteproc/qcom_adsp_pil.c b/drivers/remoteproc/qcom_adsp_pil.c
index c1ee5c8..301b820 100644
--- a/drivers/remoteproc/qcom_adsp_pil.c
+++ b/drivers/remoteproc/qcom_adsp_pil.c
@@ -26,11 +26,11 @@
 #include <linux/qcom_scm.h>
 #include <linux/regulator/consumer.h>
 #include <linux/remoteproc.h>
+#include <linux/soc/qcom/mdt_loader.h>
 #include <linux/soc/qcom/smem.h>
 #include <linux/soc/qcom/smem_state.h>
 
 #include "qcom_common.h"
-#include "qcom_mdt_loader.h"
 #include "remoteproc_internal.h"
 
 struct adsp_data {
diff --git a/drivers/remoteproc/qcom_mdt_loader.c b/drivers/remoteproc/qcom_mdt_loader.c
deleted file mode 100644
index 790ab31..0000000
--- a/drivers/remoteproc/qcom_mdt_loader.c
+++ /dev/null
@@ -1,205 +0,0 @@
-/*
- * Qualcomm Peripheral Image Loader
- *
- * Copyright (C) 2016 Linaro Ltd
- * Copyright (C) 2015 Sony Mobile Communications Inc
- * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/device.h>
-#include <linux/elf.h>
-#include <linux/firmware.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/qcom_scm.h>
-#include <linux/sizes.h>
-#include <linux/slab.h>
-
-#include "qcom_mdt_loader.h"
-
-static bool mdt_phdr_valid(const struct elf32_phdr *phdr)
-{
-	if (phdr->p_type != PT_LOAD)
-		return false;
-
-	if ((phdr->p_flags & QCOM_MDT_TYPE_MASK) == QCOM_MDT_TYPE_HASH)
-		return false;
-
-	if (!phdr->p_memsz)
-		return false;
-
-	return true;
-}
-
-/**
- * qcom_mdt_get_size() - acquire size of the memory region needed to load mdt
- * @fw:		firmware object for the mdt file
- *
- * Returns size of the loaded firmware blob, or -EINVAL on failure.
- */
-ssize_t qcom_mdt_get_size(const struct firmware *fw)
-{
-	const struct elf32_phdr *phdrs;
-	const struct elf32_phdr *phdr;
-	const struct elf32_hdr *ehdr;
-	phys_addr_t min_addr = (phys_addr_t)ULLONG_MAX;
-	phys_addr_t max_addr = 0;
-	int i;
-
-	ehdr = (struct elf32_hdr *)fw->data;
-	phdrs = (struct elf32_phdr *)(ehdr + 1);
-
-	for (i = 0; i < ehdr->e_phnum; i++) {
-		phdr = &phdrs[i];
-
-		if (!mdt_phdr_valid(phdr))
-			continue;
-
-		if (phdr->p_paddr < min_addr)
-			min_addr = phdr->p_paddr;
-
-		if (phdr->p_paddr + phdr->p_memsz > max_addr)
-			max_addr = ALIGN(phdr->p_paddr + phdr->p_memsz, SZ_4K);
-	}
-
-	return min_addr < max_addr ? max_addr - min_addr : -EINVAL;
-}
-EXPORT_SYMBOL_GPL(qcom_mdt_get_size);
-
-/**
- * qcom_mdt_load() - load the firmware which header is loaded as fw
- * @dev:	device handle to associate resources with
- * @fw:		firmware object for the mdt file
- * @firmware:	name of the firmware, for construction of segment file names
- * @pas_id:	PAS identifier
- * @mem_region:	allocated memory region to load firmware into
- * @mem_phys:	physical address of allocated memory region
- * @mem_size:	size of the allocated memory region
- *
- * Returns 0 on success, negative errno otherwise.
- */
-int qcom_mdt_load(struct device *dev, const struct firmware *fw,
-		  const char *firmware, int pas_id, void *mem_region,
-		  phys_addr_t mem_phys, size_t mem_size)
-{
-	const struct elf32_phdr *phdrs;
-	const struct elf32_phdr *phdr;
-	const struct elf32_hdr *ehdr;
-	const struct firmware *seg_fw;
-	phys_addr_t mem_reloc;
-	phys_addr_t min_addr = (phys_addr_t)ULLONG_MAX;
-	phys_addr_t max_addr = 0;
-	size_t fw_name_len;
-	size_t offset;
-	char *fw_name;
-	bool relocate = false;
-	void *ptr;
-	int ret;
-	int i;
-
-	if (!fw || !mem_region || !mem_phys || !mem_size)
-		return -EINVAL;
-
-	ehdr = (struct elf32_hdr *)fw->data;
-	phdrs = (struct elf32_phdr *)(ehdr + 1);
-
-	fw_name_len = strlen(firmware);
-	if (fw_name_len <= 4)
-		return -EINVAL;
-
-	fw_name = kstrdup(firmware, GFP_KERNEL);
-	if (!fw_name)
-		return -ENOMEM;
-
-	ret = qcom_scm_pas_init_image(pas_id, fw->data, fw->size);
-	if (ret) {
-		dev_err(dev, "invalid firmware metadata\n");
-		goto out;
-	}
-
-	for (i = 0; i < ehdr->e_phnum; i++) {
-		phdr = &phdrs[i];
-
-		if (!mdt_phdr_valid(phdr))
-			continue;
-
-		if (phdr->p_flags & QCOM_MDT_RELOCATABLE)
-			relocate = true;
-
-		if (phdr->p_paddr < min_addr)
-			min_addr = phdr->p_paddr;
-
-		if (phdr->p_paddr + phdr->p_memsz > max_addr)
-			max_addr = ALIGN(phdr->p_paddr + phdr->p_memsz, SZ_4K);
-	}
-
-	if (relocate) {
-		ret = qcom_scm_pas_mem_setup(pas_id, mem_phys, max_addr - min_addr);
-		if (ret) {
-			dev_err(dev, "unable to setup relocation\n");
-			goto out;
-		}
-
-		/*
-		 * The image is relocatable, so offset each segment based on
-		 * the lowest segment address.
-		 */
-		mem_reloc = min_addr;
-	} else {
-		/*
-		 * Image is not relocatable, so offset each segment based on
-		 * the allocated physical chunk of memory.
-		 */
-		mem_reloc = mem_phys;
-	}
-
-	for (i = 0; i < ehdr->e_phnum; i++) {
-		phdr = &phdrs[i];
-
-		if (!mdt_phdr_valid(phdr))
-			continue;
-
-		offset = phdr->p_paddr - mem_reloc;
-		if (offset < 0 || offset + phdr->p_memsz > mem_size) {
-			dev_err(dev, "segment outside memory range\n");
-			ret = -EINVAL;
-			break;
-		}
-
-		ptr = mem_region + offset;
-
-		if (phdr->p_filesz) {
-			sprintf(fw_name + fw_name_len - 3, "b%02d", i);
-			ret = request_firmware(&seg_fw, fw_name, dev);
-			if (ret) {
-				dev_err(dev, "failed to load %s\n", fw_name);
-				break;
-			}
-
-			memcpy(ptr, seg_fw->data, seg_fw->size);
-
-			release_firmware(seg_fw);
-		}
-
-		if (phdr->p_memsz > phdr->p_filesz)
-			memset(ptr + phdr->p_filesz, 0, phdr->p_memsz - phdr->p_filesz);
-	}
-
-out:
-	kfree(fw_name);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(qcom_mdt_load);
-
-MODULE_DESCRIPTION("Firmware parser for Qualcomm MDT format");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/remoteproc/qcom_mdt_loader.h b/drivers/remoteproc/qcom_mdt_loader.h
deleted file mode 100644
index ff6e45b..0000000
--- a/drivers/remoteproc/qcom_mdt_loader.h
+++ /dev/null
@@ -1,13 +0,0 @@
-#ifndef __QCOM_MDT_LOADER_H__
-#define __QCOM_MDT_LOADER_H__
-
-#define QCOM_MDT_TYPE_MASK	(7 << 24)
-#define QCOM_MDT_TYPE_HASH	(2 << 24)
-#define QCOM_MDT_RELOCATABLE	BIT(27)
-
-ssize_t qcom_mdt_get_size(const struct firmware *fw);
-int qcom_mdt_load(struct device *dev, const struct firmware *fw,
-		  const char *fw_name, int pas_id, void *mem_region,
-		  phys_addr_t mem_phys, size_t mem_size);
-
-#endif
diff --git a/drivers/remoteproc/qcom_q6v5_pil.c b/drivers/remoteproc/qcom_q6v5_pil.c
index 2e44c06..b129261 100644
--- a/drivers/remoteproc/qcom_q6v5_pil.c
+++ b/drivers/remoteproc/qcom_q6v5_pil.c
@@ -29,12 +29,12 @@
 #include <linux/regulator/consumer.h>
 #include <linux/remoteproc.h>
 #include <linux/reset.h>
+#include <linux/soc/qcom/mdt_loader.h>
 #include <linux/soc/qcom/smem.h>
 #include <linux/soc/qcom/smem_state.h>
 
 #include "remoteproc_internal.h"
 #include "qcom_common.h"
-#include "qcom_mdt_loader.h"
 
 #include <linux/qcom_scm.h>
 
diff --git a/drivers/remoteproc/qcom_wcnss.c b/drivers/remoteproc/qcom_wcnss.c
index fbb25ea..781211c 100644
--- a/drivers/remoteproc/qcom_wcnss.c
+++ b/drivers/remoteproc/qcom_wcnss.c
@@ -28,12 +28,12 @@
 #include <linux/qcom_scm.h>
 #include <linux/regulator/consumer.h>
 #include <linux/remoteproc.h>
+#include <linux/soc/qcom/mdt_loader.h>
 #include <linux/soc/qcom/smem.h>
 #include <linux/soc/qcom/smem_state.h>
 #include <linux/rpmsg/qcom_smd.h>
 
 #include "qcom_common.h"
-#include "qcom_mdt_loader.h"
 #include "remoteproc_internal.h"
 #include "qcom_wcnss.h"