Linux-libre 4.5-gnu

4 files changed, 50 insertions, 26 deletions

diff --git a/arch/cris/arch-v32/drivers/mach-a3/nandflash.c b/arch/cris/arch-v32/drivers/mach-a3/nandflash.c
index 7fb52128d..5aa3f5162 100644
--- a/arch/cris/arch-v32/drivers/mach-a3/nandflash.c
+++ b/arch/cris/arch-v32/drivers/mach-a3/nandflash.c
@@ -36,7 +36,6 @@
 #define CE_BIT 12
 
 struct mtd_info_wrapper {
-	struct mtd_info info;
 	struct nand_chip chip;
 };
 
@@ -52,7 +51,7 @@ static void crisv32_hwcontrol(struct mtd_info *mtd, int cmd,
 {
 	unsigned long flags;
 	reg_pio_rw_dout dout;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 
 	local_irq_save(flags);
 
@@ -148,10 +147,7 @@ struct mtd_info *__init crisv32_nand_flash_probe(void)
 
 	/* Get pointer to private data */
 	this = &wrapper->chip;
-	crisv32_mtd = &wrapper->info;
-
-	/* Link the private data with the MTD structure */
-	crisv32_mtd->priv = this;
+	crisv32_mtd = nand_to_mtd(this);
 
 	/* Set address of NAND IO lines */
 	this->IO_ADDR_R = read_cs;
diff --git a/arch/cris/arch-v32/drivers/mach-fs/nandflash.c b/arch/cris/arch-v32/drivers/mach-fs/nandflash.c
index e03238454..a7c17b0f1 100644
--- a/arch/cris/arch-v32/drivers/mach-fs/nandflash.c
+++ b/arch/cris/arch-v32/drivers/mach-fs/nandflash.c
@@ -31,7 +31,6 @@
 #define BY_BIT 7
 
 struct mtd_info_wrapper {
-	struct mtd_info info;
 	struct nand_chip chip;
 };
 
@@ -51,7 +50,7 @@ static void crisv32_hwcontrol(struct mtd_info *mtd, int cmd,
 {
 	unsigned long flags;
 	reg_gio_rw_pa_dout dout;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 
 	local_irq_save(flags);
 
@@ -129,7 +128,7 @@ struct mtd_info *__init crisv32_nand_flash_probe(void)
 
 	/* Get pointer to private data */
 	this = &wrapper->chip;
-	crisv32_mtd = &wrapper->info;
+	crisv32_mtd = nand_to_mtd(this);
 
 	pa_oe.oe |= 1 << CE_BIT;
 	pa_oe.oe |= 1 << ALE_BIT;
@@ -141,9 +140,6 @@ struct mtd_info *__init crisv32_nand_flash_probe(void)
 	bif_cfg.gated_csp1 = regk_bif_core_wr;
 	REG_WR(bif_core, regi_bif_core, rw_grp3_cfg, bif_cfg);
 
-	/* Link the private data with the MTD structure */
-	crisv32_mtd->priv = this;
-
 	/* Set address of NAND IO lines */
 	this->IO_ADDR_R = read_cs;
 	this->IO_ADDR_W = write_cs;
diff --git a/arch/cris/arch-v32/drivers/pci/dma.c b/arch/cris/arch-v32/drivers/pci/dma.c
index ee55578d9..8d5efa58c 100644
--- a/arch/cris/arch-v32/drivers/pci/dma.c
+++ b/arch/cris/arch-v32/drivers/pci/dma.c
@@ -16,21 +16,18 @@
 #include <linux/gfp.h>
 #include <asm/io.h>
 
-void *dma_alloc_coherent(struct device *dev, size_t size,
-			   dma_addr_t *dma_handle, gfp_t gfp)
+static void *v32_dma_alloc(struct device *dev, size_t size,
+		dma_addr_t *dma_handle, gfp_t gfp,  struct dma_attrs *attrs)
 {
 	void *ret;
-	int order = get_order(size);
+
 	/* ignore region specifiers */
 	gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
 
-	if (dma_alloc_from_coherent(dev, size, dma_handle, &ret))
-		return ret;
-
 	if (dev == NULL || (dev->coherent_dma_mask < 0xffffffff))
 		gfp |= GFP_DMA;
 
-	ret = (void *)__get_free_pages(gfp, order);
+	ret = (void *)__get_free_pages(gfp,  get_order(size));
 
 	if (ret != NULL) {
 		memset(ret, 0, size);
@@ -39,12 +36,45 @@ void *dma_alloc_coherent(struct device *dev, size_t size,
 	return ret;
 }
 
-void dma_free_coherent(struct device *dev, size_t size,
-			 void *vaddr, dma_addr_t dma_handle)
+static void v32_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_handle, struct dma_attrs *attrs)
+{
+	free_pages((unsigned long)vaddr, get_order(size));
+}
+
+static inline dma_addr_t v32_dma_map_page(struct device *dev,
+		struct page *page, unsigned long offset, size_t size,
+		enum dma_data_direction direction,
+		struct dma_attrs *attrs)
 {
-	int order = get_order(size);
+	return page_to_phys(page) + offset;
+}
 
-	if (!dma_release_from_coherent(dev, order, vaddr))
-		free_pages((unsigned long)vaddr, order);
+static inline int v32_dma_map_sg(struct device *dev, struct scatterlist *sg,
+		int nents, enum dma_data_direction direction,
+		struct dma_attrs *attrs)
+{
+	printk("Map sg\n");
+	return nents;
+}
+
+static inline int v32_dma_supported(struct device *dev, u64 mask)
+{
+        /*
+         * we fall back to GFP_DMA when the mask isn't all 1s,
+         * so we can't guarantee allocations that must be
+         * within a tighter range than GFP_DMA..
+         */
+        if (mask < 0x00ffffff)
+                return 0;
+	return 1;
 }
 
+struct dma_map_ops v32_dma_ops = {
+	.alloc			= v32_dma_alloc,
+	.free			= v32_dma_free,
+	.map_page		= v32_dma_map_page,
+	.map_sg                 = v32_dma_map_sg,
+	.dma_supported		= v32_dma_supported,
+};
+EXPORT_SYMBOL(v32_dma_ops);
diff --git a/arch/cris/arch-v32/kernel/head.S b/arch/cris/arch-v32/kernel/head.S
index ea6366800..5ce83eb54 100644
--- a/arch/cris/arch-v32/kernel/head.S
+++ b/arch/cris/arch-v32/kernel/head.S
@@ -4,6 +4,8 @@
  * Copyright (C) 2003, Axis Communications AB
  */
 
+#include <linux/init.h>
+
 #define ASSEMBLER_MACROS_ONLY
 
 /*
@@ -36,7 +38,7 @@
 	.global nand_boot
 	.global swapper_pg_dir
 
-	.text
+	__HEAD
 tstart:
 	;; This is the entry point of the kernel. The CPU is currently in
 	;; supervisor mode.
@@ -177,7 +179,7 @@ _inflash0:
 
 	;; Put the following in a section so that storage for it can be
 	;; reclaimed after init is finished.
-	.section ".init.text", "ax"
+	__INIT
 
 _inflash: