/* * QEMU System Emulator block driver * * Copyright (c) 2003 Fabrice Bellard * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "vl.h" #include "block_int.h" static BlockDriverState *bdrv_first; static BlockDriver *first_drv; void bdrv_register(BlockDriver *bdrv) { bdrv->next = first_drv; first_drv = bdrv; } /* create a new block device (by default it is empty) */ BlockDriverState *bdrv_new(const char *device_name) { BlockDriverState **pbs, *bs; bs = qemu_mallocz(sizeof(BlockDriverState)); if(!bs) return NULL; pstrcpy(bs->device_name, sizeof(bs->device_name), device_name); if (device_name[0] != '\0') { /* insert at the end */ pbs = &bdrv_first; while (*pbs != NULL) pbs = &(*pbs)->next; *pbs = bs; } return bs; } BlockDriver *bdrv_find_format(const char *format_name) { BlockDriver *drv1; for(drv1 = first_drv; drv1 != NULL; drv1 = drv1->next) { if (!strcmp(drv1->format_name, format_name)) return drv1; } return NULL; } int bdrv_create(BlockDriver *drv, const char *filename, int64_t size_in_sectors, const char *backing_file, int flags) { if (!drv->bdrv_create) return -ENOTSUP; return drv->bdrv_create(filename, size_in_sectors, backing_file, flags); } static BlockDriver *find_image_format(const char *filename) { int fd, ret, score, score_max; BlockDriver *drv1, *drv; uint8_t buf[1024]; fd = open(filename, O_RDONLY | O_BINARY | O_LARGEFILE); if (fd < 0) return NULL; ret = read(fd, buf, sizeof(buf)); if (ret < 0) { close(fd); return NULL; } close(fd); drv = NULL; score_max = 0; for(drv1 = first_drv; drv1 != NULL; drv1 = drv1->next) { score = drv1->bdrv_probe(buf, ret, filename); if (score > score_max) { score_max = score; drv = drv1; } } return drv; } int bdrv_open(BlockDriverState *bs, const char *filename, int snapshot) { return bdrv_open2(bs, filename, snapshot, NULL); } int bdrv_open2(BlockDriverState *bs, const char *filename, int snapshot, BlockDriver *drv) { int ret; bs->read_only = 0; bs->is_temporary = 0; bs->encrypted = 0; pstrcpy(bs->filename, sizeof(bs->filename), filename); if (!drv) { drv = find_image_format(filename); if (!drv) return -1; } bs->drv = drv; bs->opaque = qemu_mallocz(drv->instance_size); if (bs->opaque == NULL && drv->instance_size > 0) return -1; ret = drv->bdrv_open(bs, filename); if (ret < 0) { qemu_free(bs->opaque); return -1; } #ifndef _WIN32 if (bs->is_temporary) { unlink(filename); } #endif if (bs->backing_file[0] != '\0' && drv->bdrv_is_allocated) { /* if there is a backing file, use it */ bs->backing_hd = bdrv_new(""); if (!bs->backing_hd) { fail: bdrv_close(bs); return -1; } if (bdrv_open(bs->backing_hd, bs->backing_file, 0) < 0) goto fail; } bs->inserted = 1; /* call the change callback */ if (bs->change_cb) bs->change_cb(bs->change_opaque); return 0; } void bdrv_close(BlockDriverState *bs) { if (bs->inserted) { if (bs->backing_hd) bdrv_delete(bs->backing_hd); bs->drv->bdrv_close(bs); qemu_free(bs->opaque); #ifdef _WIN32 if (bs->is_temporary) { unlink(bs->filename); } #endif bs->opaque = NULL; bs->drv = NULL; bs->inserted = 0; /* call the change callback */ if (bs->change_cb) bs->change_cb(bs->change_opaque); } } void bdrv_delete(BlockDriverState *bs) { /* XXX: remove the driver list */ bdrv_close(bs); qemu_free(bs); } /* commit COW file into the raw image */ int bdrv_commit(BlockDriverState *bs) { int64_t i; int n, j; unsigned char sector[512]; if (!bs->inserted) return -ENOENT; if (bs->read_only) { return -EACCES; } if (!bs->backing_hd) { return -ENOTSUP; } for (i = 0; i < bs->total_sectors;) { if (bs->drv->bdrv_is_allocated(bs, i, 65536, &n)) { for(j = 0; j < n; j++) { if (bdrv_read(bs, i, sector, 1) != 0) { return -EIO; } if (bdrv_write(bs->backing_hd, i, sector, 1) != 0) { return -EIO; } i++; } } else { i += n; } } return 0; } /* return -1 if error */ int bdrv_read(BlockDriverState *bs, int64_t sector_num, uint8_t *buf, int nb_sectors) { int ret, n; BlockDriver *drv = bs->drv; if (!bs->inserted) return -1; while (nb_sectors > 0) { if (sector_num == 0 && bs->boot_sector_enabled) { memcpy(buf, bs->boot_sector_data, 512); n = 1; } else if (bs->back
From baea71233ed1796651cab6ead484a18666a765aa Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Thu, 11 Sep 2014 19:25:25 +0200
Subject: [PATCH] MIPS: lantiq: move eiu init after irq_domain register

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 arch/mips/lantiq/irq.c |   48 ++++++++++++++++++++++++------------------------
 1 file changed, 24 insertions(+), 24 deletions(-)

--- a/arch/mips/lantiq/irq.c
+++ b/arch/mips/lantiq/irq.c
@@ -380,30 +380,6 @@ int __init icu_of_init(struct device_nod
 			panic("Failed to remap icu memory");
 	}
 
-	/* the external interrupts are optional and xway only */
-	eiu_node = of_find_compatible_node(NULL, NULL, "lantiq,eiu-xway");
-	if (eiu_node && !of_address_to_resource(eiu_node, 0, &res)) {
-		/* find out how many external irq sources we have */
-		exin_avail = of_irq_count(eiu_node);
-
-		if (exin_avail > MAX_EIU)
-			exin_avail = MAX_EIU;
-
-		ret = of_irq_to_resource_table(eiu_node,
-						ltq_eiu_irq, exin_avail);
-		if (ret != exin_avail)
-			panic("failed to load external irq resources");
-
-		if (request_mem_region(res.start, resource_size(&res),
-							res.name) < 0)
-			pr_err("Failed to request eiu memory");
-
-		ltq_eiu_membase = ioremap_nocache(res.start,
-							resource_size(&res));
-		if (!ltq_eiu_membase)
-			panic("Failed to remap eiu memory");
-	}
-
 	/* turn off all irqs by default */
 	for (i = 0; i < MAX_IM; i++) {
 		/* make sure all irqs are turned off by default */
@@ -460,6 +436,30 @@ int __init icu_of_init(struct device_nod
 	if (MIPS_CPU_TIMER_IRQ != 7)
 		irq_create_mapping(ltq_domain, MIPS_CPU_TIMER_IRQ);
 
+	/* the external interrupts are optional and xway only */
+	eiu_node = of_find_compatible_node(NULL, NULL, "lantiq,eiu-xway");
+	if (eiu_node && !of_address_to_resource(eiu_node, 0, &res)) {
+		/* find out how many external irq sources we have */
+		exin_avail = of_irq_count(eiu_node);
+
+		if (exin_avail > MAX_EIU)
+			exin_avail = MAX_EIU;
+
+		ret = of_irq_to_resource_table(eiu_node,
+						ltq_eiu_irq, exin_avail);
+		if (ret != exin_avail)
+			panic("failed to load external irq resources");
+
+		if (request_mem_region(res.start, resource_size(&res),
+							res.name) < 0)
+			pr_err("Failed to request eiu memory");
+
+		ltq_eiu_membase = ioremap_nocache(res.start,
+							resource_size(&res));
+		if (!ltq_eiu_membase)
+			panic("Failed to remap eiu memory");
+	}
+
 	return 0;
 }
generated by cgit v1.2.3 (git 2.25.1) at 2025-09-29 03:55:47 +0000