Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * PS3 Storage Library
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (C) 2007 Sony Computer Entertainment Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Copyright 2007 Sony Corp.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/dma-mapping.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <asm/lv1call.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <asm/ps3stor.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16)  * A workaround for flash memory I/O errors when the internal hard disk
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17)  * has not been formatted for OtherOS use.  Delay disk close until flash
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18)  * memory is closed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) static struct ps3_flash_workaround {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	int flash_open;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 	int disk_open;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 	struct ps3_system_bus_device *disk_sbd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) } ps3_flash_workaround;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) static int ps3stor_open_hv_device(struct ps3_system_bus_device *sbd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	int error = ps3_open_hv_device(sbd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 		return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	if (sbd->match_id == PS3_MATCH_ID_STOR_FLASH)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 		ps3_flash_workaround.flash_open = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	if (sbd->match_id == PS3_MATCH_ID_STOR_DISK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 		ps3_flash_workaround.disk_open = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) static int ps3stor_close_hv_device(struct ps3_system_bus_device *sbd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	if (sbd->match_id == PS3_MATCH_ID_STOR_DISK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 		&& ps3_flash_workaround.disk_open
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 		&& ps3_flash_workaround.flash_open) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 		ps3_flash_workaround.disk_sbd = sbd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	error = ps3_close_hv_device(sbd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 		return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	if (sbd->match_id == PS3_MATCH_ID_STOR_DISK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 		ps3_flash_workaround.disk_open = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	if (sbd->match_id == PS3_MATCH_ID_STOR_FLASH) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 		ps3_flash_workaround.flash_open = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 		if (ps3_flash_workaround.disk_sbd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 			ps3_close_hv_device(ps3_flash_workaround.disk_sbd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 			ps3_flash_workaround.disk_open = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 			ps3_flash_workaround.disk_sbd = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) static int ps3stor_probe_access(struct ps3_storage_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	int res, error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	unsigned int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	unsigned long n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	if (dev->sbd.match_id == PS3_MATCH_ID_STOR_ROM) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 		/* special case: CD-ROM is assumed always accessible */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 		dev->accessible_regions = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	error = -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	for (i = 0; i < dev->num_regions; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 		dev_dbg(&dev->sbd.core,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 			"%s:%u: checking accessibility of region %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 			__func__, __LINE__, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 		dev->region_idx = i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 		res = ps3stor_read_write_sectors(dev, dev->bounce_lpar, 0, 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 						 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 		if (res) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 			dev_dbg(&dev->sbd.core, "%s:%u: read failed, "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 				"region %u is not accessible\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 				__LINE__, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 		dev_dbg(&dev->sbd.core, "%s:%u: region %u is accessible\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 			__func__, __LINE__, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 		set_bit(i, &dev->accessible_regions);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 		/* We can access at least one region */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 		error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 		return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	n = hweight_long(dev->accessible_regions);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	if (n > 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 		dev_info(&dev->sbd.core,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 			 "%s:%u: %lu accessible regions found. Only the first "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 			 "one will be used\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 			 __func__, __LINE__, n);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	dev->region_idx = __ffs(dev->accessible_regions);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	dev_info(&dev->sbd.core,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 		 "First accessible region has index %u start %llu size %llu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 		 dev->region_idx, dev->regions[dev->region_idx].start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 		 dev->regions[dev->region_idx].size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)  *	ps3stor_setup - Setup a storage device before use
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)  *	@dev: Pointer to a struct ps3_storage_device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)  *	@handler: Pointer to an interrupt handler
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)  *	Returns 0 for success, or an error code
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) int ps3stor_setup(struct ps3_storage_device *dev, irq_handler_t handler)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	int error, res, alignment;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	enum ps3_dma_page_size page_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	error = ps3stor_open_hv_device(&dev->sbd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 		dev_err(&dev->sbd.core,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 			"%s:%u: ps3_open_hv_device failed %d\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 			__LINE__, error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 		goto fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	error = ps3_sb_event_receive_port_setup(&dev->sbd, PS3_BINDING_CPU_ANY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 						&dev->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 		dev_err(&dev->sbd.core,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 			"%s:%u: ps3_sb_event_receive_port_setup failed %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 		       __func__, __LINE__, error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 		goto fail_close_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	error = request_irq(dev->irq, handler, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 			    dev->sbd.core.driver->name, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 		dev_err(&dev->sbd.core, "%s:%u: request_irq failed %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 			__func__, __LINE__, error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 		goto fail_sb_event_receive_port_destroy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	alignment = min(__ffs(dev->bounce_size),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 			__ffs((unsigned long)dev->bounce_buf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	if (alignment < 12) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 		dev_err(&dev->sbd.core,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 			"%s:%u: bounce buffer not aligned (%lx at 0x%p)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 			__func__, __LINE__, dev->bounce_size, dev->bounce_buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 		error = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 		goto fail_free_irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	} else if (alignment < 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 		page_size = PS3_DMA_4K;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 		page_size = PS3_DMA_64K;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	dev->sbd.d_region = &dev->dma_region;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	ps3_dma_region_init(&dev->sbd, &dev->dma_region, page_size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 			    PS3_DMA_OTHER, dev->bounce_buf, dev->bounce_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	res = ps3_dma_region_create(&dev->dma_region);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	if (res) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 		dev_err(&dev->sbd.core, "%s:%u: cannot create DMA region\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 			__func__, __LINE__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 		error = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 		goto fail_free_irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	dev->bounce_lpar = ps3_mm_phys_to_lpar(__pa(dev->bounce_buf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	dev->bounce_dma = dma_map_single(&dev->sbd.core, dev->bounce_buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 					 dev->bounce_size, DMA_BIDIRECTIONAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	if (dma_mapping_error(&dev->sbd.core, dev->bounce_dma)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 		dev_err(&dev->sbd.core, "%s:%u: map DMA region failed\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 			__func__, __LINE__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 		error = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 		goto fail_free_dma;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	error = ps3stor_probe_access(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 		dev_err(&dev->sbd.core, "%s:%u: No accessible regions found\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 			__func__, __LINE__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 		goto fail_unmap_dma;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) fail_unmap_dma:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	dma_unmap_single(&dev->sbd.core, dev->bounce_dma, dev->bounce_size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 			 DMA_BIDIRECTIONAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) fail_free_dma:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	ps3_dma_region_free(&dev->dma_region);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) fail_free_irq:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	free_irq(dev->irq, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) fail_sb_event_receive_port_destroy:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	ps3_sb_event_receive_port_destroy(&dev->sbd, dev->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) fail_close_device:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	ps3stor_close_hv_device(&dev->sbd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) fail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) EXPORT_SYMBOL_GPL(ps3stor_setup);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)  *	ps3stor_teardown - Tear down a storage device after use
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)  *	@dev: Pointer to a struct ps3_storage_device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) void ps3stor_teardown(struct ps3_storage_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	dma_unmap_single(&dev->sbd.core, dev->bounce_dma, dev->bounce_size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 			 DMA_BIDIRECTIONAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	ps3_dma_region_free(&dev->dma_region);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	free_irq(dev->irq, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	error = ps3_sb_event_receive_port_destroy(&dev->sbd, dev->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 		dev_err(&dev->sbd.core,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 			"%s:%u: destroy event receive port failed %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 			__func__, __LINE__, error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	error = ps3stor_close_hv_device(&dev->sbd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 		dev_err(&dev->sbd.core,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 			"%s:%u: ps3_close_hv_device failed %d\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 			__LINE__, error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) EXPORT_SYMBOL_GPL(ps3stor_teardown);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254)  *	ps3stor_read_write_sectors - read/write from/to a storage device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255)  *	@dev: Pointer to a struct ps3_storage_device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)  *	@lpar: HV logical partition address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)  *	@start_sector: First sector to read/write
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)  *	@sectors: Number of sectors to read/write
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)  *	@write: Flag indicating write (non-zero) or read (zero)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261)  *	Returns 0 for success, -1 in case of failure to submit the command, or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262)  *	an LV1 status value in case of other errors
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) u64 ps3stor_read_write_sectors(struct ps3_storage_device *dev, u64 lpar,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 			       u64 start_sector, u64 sectors, int write)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	unsigned int region_id = dev->regions[dev->region_idx].id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 	const char *op = write ? "write" : "read";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 	int res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	dev_dbg(&dev->sbd.core, "%s:%u: %s %llu sectors starting at %llu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 		__func__, __LINE__, op, sectors, start_sector);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	init_completion(&dev->done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	res = write ? lv1_storage_write(dev->sbd.dev_id, region_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 					start_sector, sectors, 0, lpar,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 					&dev->tag)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 		    : lv1_storage_read(dev->sbd.dev_id, region_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 				       start_sector, sectors, 0, lpar,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 				       &dev->tag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	if (res) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 		dev_dbg(&dev->sbd.core, "%s:%u: %s failed %d\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 			__LINE__, op, res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 		return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	wait_for_completion(&dev->done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	if (dev->lv1_status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 		dev_dbg(&dev->sbd.core, "%s:%u: %s failed 0x%llx\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 			__LINE__, op, dev->lv1_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 		return dev->lv1_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	dev_dbg(&dev->sbd.core, "%s:%u: %s completed\n", __func__, __LINE__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 		op);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) EXPORT_SYMBOL_GPL(ps3stor_read_write_sectors);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303)  *	ps3stor_send_command - send a device command to a storage device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304)  *	@dev: Pointer to a struct ps3_storage_device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)  *	@cmd: Command number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306)  *	@arg1: First command argument
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)  *	@arg2: Second command argument
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)  *	@arg3: Third command argument
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309)  *	@arg4: Fourth command argument
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311)  *	Returns 0 for success, -1 in case of failure to submit the command, or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)  *	an LV1 status value in case of other errors
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) u64 ps3stor_send_command(struct ps3_storage_device *dev, u64 cmd, u64 arg1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 			 u64 arg2, u64 arg3, u64 arg4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 	int res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 	dev_dbg(&dev->sbd.core, "%s:%u: send device command 0x%llx\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 		__LINE__, cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	init_completion(&dev->done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 	res = lv1_storage_send_device_command(dev->sbd.dev_id, cmd, arg1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 					      arg2, arg3, arg4, &dev->tag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 	if (res) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 		dev_err(&dev->sbd.core,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 			"%s:%u: send_device_command 0x%llx failed %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 			__func__, __LINE__, cmd, res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 		return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 	wait_for_completion(&dev->done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 	if (dev->lv1_status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 		dev_dbg(&dev->sbd.core, "%s:%u: command 0x%llx failed 0x%llx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 			__func__, __LINE__, cmd, dev->lv1_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 		return dev->lv1_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 	dev_dbg(&dev->sbd.core, "%s:%u: command 0x%llx completed\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 		__LINE__, cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) EXPORT_SYMBOL_GPL(ps3stor_send_command);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) MODULE_DESCRIPTION("PS3 Storage Bus Library");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) MODULE_AUTHOR("Sony Corporation");