Glauber Costa | 459121c9 | 2008-04-08 13:20:43 -0300 | [diff] [blame] | 1 | #include <linux/dma-mapping.h> |
Joerg Roedel | 2118d0c | 2009-01-09 15:13:15 +0100 | [diff] [blame] | 2 | #include <linux/dma-debug.h> |
Glauber Costa | cb5867a | 2008-04-08 13:20:51 -0300 | [diff] [blame] | 3 | #include <linux/dmar.h> |
Glauber Costa | 116890d | 2008-04-08 13:20:54 -0300 | [diff] [blame] | 4 | #include <linux/bootmem.h> |
Glauber Costa | bca5c09 | 2008-04-08 13:20:53 -0300 | [diff] [blame] | 5 | #include <linux/pci.h> |
Catalin Marinas | acde31d | 2009-08-27 14:29:20 +0100 | [diff] [blame] | 6 | #include <linux/kmemleak.h> |
Glauber Costa | cb5867a | 2008-04-08 13:20:51 -0300 | [diff] [blame] | 7 | |
Glauber Costa | 116890d | 2008-04-08 13:20:54 -0300 | [diff] [blame] | 8 | #include <asm/proto.h> |
| 9 | #include <asm/dma.h> |
FUJITA Tomonori | 46a7fa2 | 2008-07-11 10:23:42 +0900 | [diff] [blame] | 10 | #include <asm/iommu.h> |
Joerg Roedel | 1d9b16d | 2008-11-27 18:39:15 +0100 | [diff] [blame] | 11 | #include <asm/gart.h> |
Glauber Costa | cb5867a | 2008-04-08 13:20:51 -0300 | [diff] [blame] | 12 | #include <asm/calgary.h> |
Joerg Roedel | a69ca34 | 2008-06-26 21:28:08 +0200 | [diff] [blame] | 13 | #include <asm/amd_iommu.h> |
Glauber Costa | 459121c9 | 2008-04-08 13:20:43 -0300 | [diff] [blame] | 14 | |
Fenghua Yu | 3b15e58 | 2008-10-23 16:51:00 -0700 | [diff] [blame] | 15 | static int forbid_dac __read_mostly; |
| 16 | |
FUJITA Tomonori | 160c1d8 | 2009-01-05 23:59:02 +0900 | [diff] [blame] | 17 | struct dma_map_ops *dma_ops; |
Glauber Costa | 85c246e | 2008-04-08 13:20:50 -0300 | [diff] [blame] | 18 | EXPORT_SYMBOL(dma_ops); |
| 19 | |
Dmitri Vorobiev | b4cdc43 | 2008-04-28 03:15:58 +0400 | [diff] [blame] | 20 | static int iommu_sac_force __read_mostly; |
Glauber Costa | 8e0c379 | 2008-04-08 13:20:55 -0300 | [diff] [blame] | 21 | |
Glauber Costa | f9c258d | 2008-04-08 13:20:52 -0300 | [diff] [blame] | 22 | #ifdef CONFIG_IOMMU_DEBUG |
| 23 | int panic_on_overflow __read_mostly = 1; |
| 24 | int force_iommu __read_mostly = 1; |
| 25 | #else |
| 26 | int panic_on_overflow __read_mostly = 0; |
| 27 | int force_iommu __read_mostly = 0; |
| 28 | #endif |
| 29 | |
Glauber Costa | fae9a0d | 2008-04-08 13:20:56 -0300 | [diff] [blame] | 30 | int iommu_merge __read_mostly = 0; |
| 31 | |
| 32 | int no_iommu __read_mostly; |
| 33 | /* Set this to 1 if there is a HW IOMMU in the system */ |
| 34 | int iommu_detected __read_mostly = 0; |
| 35 | |
Joerg Roedel | ac0101d | 2009-09-01 16:00:35 +0200 | [diff] [blame] | 36 | /* |
| 37 | * This variable becomes 1 if iommu=pt is passed on the kernel command line. |
Marin Mitov | e3be785 | 2009-10-03 20:45:02 +0300 | [diff] [blame] | 38 | * If this variable is 1, IOMMU implementations do no DMA translation for |
Joerg Roedel | ac0101d | 2009-09-01 16:00:35 +0200 | [diff] [blame] | 39 | * devices and allow every device to access to whole physical memory. This is |
| 40 | * useful if a user want to use an IOMMU only for KVM device assignment to |
| 41 | * guests and not for driver dma translation. |
| 42 | */ |
| 43 | int iommu_pass_through __read_mostly; |
Fenghua Yu | aed5d5f | 2009-04-30 17:57:11 -0700 | [diff] [blame] | 44 | |
Glauber Costa | cac6787 | 2008-04-08 13:21:00 -0300 | [diff] [blame] | 45 | dma_addr_t bad_dma_address __read_mostly = 0; |
| 46 | EXPORT_SYMBOL(bad_dma_address); |
Glauber Costa | fae9a0d | 2008-04-08 13:20:56 -0300 | [diff] [blame] | 47 | |
Jan Beulich | eb64713 | 2009-11-08 12:12:14 +0100 | [diff] [blame^] | 48 | /* Dummy device used for NULL arguments (normally ISA). */ |
Joerg Roedel | 6c505ce | 2008-08-19 16:32:45 +0200 | [diff] [blame] | 49 | struct device x86_dma_fallback_dev = { |
Kay Sievers | 1a92713 | 2008-10-30 02:17:49 +0100 | [diff] [blame] | 50 | .init_name = "fallback device", |
Jan Beulich | eb64713 | 2009-11-08 12:12:14 +0100 | [diff] [blame^] | 51 | .coherent_dma_mask = ISA_DMA_BIT_MASK, |
Joerg Roedel | 6c505ce | 2008-08-19 16:32:45 +0200 | [diff] [blame] | 52 | .dma_mask = &x86_dma_fallback_dev.coherent_dma_mask, |
Glauber Costa | 098cb7f | 2008-04-09 13:18:10 -0300 | [diff] [blame] | 53 | }; |
Joerg Roedel | 6c505ce | 2008-08-19 16:32:45 +0200 | [diff] [blame] | 54 | EXPORT_SYMBOL(x86_dma_fallback_dev); |
Glauber Costa | 098cb7f | 2008-04-09 13:18:10 -0300 | [diff] [blame] | 55 | |
Joerg Roedel | 2118d0c | 2009-01-09 15:13:15 +0100 | [diff] [blame] | 56 | /* Number of entries preallocated for DMA-API debugging */ |
| 57 | #define PREALLOC_DMA_DEBUG_ENTRIES 32768 |
| 58 | |
Glauber Costa | 459121c9 | 2008-04-08 13:20:43 -0300 | [diff] [blame] | 59 | int dma_set_mask(struct device *dev, u64 mask) |
| 60 | { |
| 61 | if (!dev->dma_mask || !dma_supported(dev, mask)) |
| 62 | return -EIO; |
| 63 | |
| 64 | *dev->dma_mask = mask; |
| 65 | |
| 66 | return 0; |
| 67 | } |
| 68 | EXPORT_SYMBOL(dma_set_mask); |
| 69 | |
Glauber Costa | 116890d | 2008-04-08 13:20:54 -0300 | [diff] [blame] | 70 | #ifdef CONFIG_X86_64 |
| 71 | static __initdata void *dma32_bootmem_ptr; |
| 72 | static unsigned long dma32_bootmem_size __initdata = (128ULL<<20); |
| 73 | |
| 74 | static int __init parse_dma32_size_opt(char *p) |
| 75 | { |
| 76 | if (!p) |
| 77 | return -EINVAL; |
| 78 | dma32_bootmem_size = memparse(p, &p); |
| 79 | return 0; |
| 80 | } |
| 81 | early_param("dma32_size", parse_dma32_size_opt); |
| 82 | |
| 83 | void __init dma32_reserve_bootmem(void) |
| 84 | { |
| 85 | unsigned long size, align; |
Yinghai Lu | c987d12 | 2008-06-24 22:14:09 -0700 | [diff] [blame] | 86 | if (max_pfn <= MAX_DMA32_PFN) |
Glauber Costa | 116890d | 2008-04-08 13:20:54 -0300 | [diff] [blame] | 87 | return; |
| 88 | |
Yinghai Lu | 7677b2e | 2008-04-14 20:40:37 -0700 | [diff] [blame] | 89 | /* |
| 90 | * check aperture_64.c allocate_aperture() for reason about |
| 91 | * using 512M as goal |
| 92 | */ |
Glauber Costa | 116890d | 2008-04-08 13:20:54 -0300 | [diff] [blame] | 93 | align = 64ULL<<20; |
Joerg Roedel | 1ddb551 | 2008-07-25 16:48:55 +0200 | [diff] [blame] | 94 | size = roundup(dma32_bootmem_size, align); |
Glauber Costa | 116890d | 2008-04-08 13:20:54 -0300 | [diff] [blame] | 95 | dma32_bootmem_ptr = __alloc_bootmem_nopanic(size, align, |
Yinghai Lu | 7677b2e | 2008-04-14 20:40:37 -0700 | [diff] [blame] | 96 | 512ULL<<20); |
Catalin Marinas | acde31d | 2009-08-27 14:29:20 +0100 | [diff] [blame] | 97 | /* |
| 98 | * Kmemleak should not scan this block as it may not be mapped via the |
| 99 | * kernel direct mapping. |
| 100 | */ |
| 101 | kmemleak_ignore(dma32_bootmem_ptr); |
Glauber Costa | 116890d | 2008-04-08 13:20:54 -0300 | [diff] [blame] | 102 | if (dma32_bootmem_ptr) |
| 103 | dma32_bootmem_size = size; |
| 104 | else |
| 105 | dma32_bootmem_size = 0; |
| 106 | } |
| 107 | static void __init dma32_free_bootmem(void) |
| 108 | { |
Glauber Costa | 116890d | 2008-04-08 13:20:54 -0300 | [diff] [blame] | 109 | |
Yinghai Lu | c987d12 | 2008-06-24 22:14:09 -0700 | [diff] [blame] | 110 | if (max_pfn <= MAX_DMA32_PFN) |
Glauber Costa | 116890d | 2008-04-08 13:20:54 -0300 | [diff] [blame] | 111 | return; |
| 112 | |
| 113 | if (!dma32_bootmem_ptr) |
| 114 | return; |
| 115 | |
Yinghai Lu | 330fce2 | 2008-04-19 01:31:45 -0700 | [diff] [blame] | 116 | free_bootmem(__pa(dma32_bootmem_ptr), dma32_bootmem_size); |
Glauber Costa | 116890d | 2008-04-08 13:20:54 -0300 | [diff] [blame] | 117 | |
| 118 | dma32_bootmem_ptr = NULL; |
| 119 | dma32_bootmem_size = 0; |
| 120 | } |
Jeremy Fitzhardinge | cfb80c9 | 2008-12-16 12:17:36 -0800 | [diff] [blame] | 121 | #endif |
Glauber Costa | 116890d | 2008-04-08 13:20:54 -0300 | [diff] [blame] | 122 | |
| 123 | void __init pci_iommu_alloc(void) |
| 124 | { |
Jeremy Fitzhardinge | cfb80c9 | 2008-12-16 12:17:36 -0800 | [diff] [blame] | 125 | #ifdef CONFIG_X86_64 |
Glauber Costa | 116890d | 2008-04-08 13:20:54 -0300 | [diff] [blame] | 126 | /* free the range so iommu could get some range less than 4G */ |
| 127 | dma32_free_bootmem(); |
Jeremy Fitzhardinge | cfb80c9 | 2008-12-16 12:17:36 -0800 | [diff] [blame] | 128 | #endif |
| 129 | |
Glauber Costa | 116890d | 2008-04-08 13:20:54 -0300 | [diff] [blame] | 130 | /* |
| 131 | * The order of these functions is important for |
| 132 | * fall-back/fail-over reasons |
| 133 | */ |
Glauber Costa | 116890d | 2008-04-08 13:20:54 -0300 | [diff] [blame] | 134 | gart_iommu_hole_init(); |
Glauber Costa | 116890d | 2008-04-08 13:20:54 -0300 | [diff] [blame] | 135 | |
Glauber Costa | 116890d | 2008-04-08 13:20:54 -0300 | [diff] [blame] | 136 | detect_calgary(); |
Glauber Costa | 116890d | 2008-04-08 13:20:54 -0300 | [diff] [blame] | 137 | |
| 138 | detect_intel_iommu(); |
| 139 | |
Joerg Roedel | a69ca34 | 2008-06-26 21:28:08 +0200 | [diff] [blame] | 140 | amd_iommu_detect(); |
| 141 | |
Glauber Costa | 116890d | 2008-04-08 13:20:54 -0300 | [diff] [blame] | 142 | pci_swiotlb_init(); |
Glauber Costa | 116890d | 2008-04-08 13:20:54 -0300 | [diff] [blame] | 143 | } |
FUJITA Tomonori | 8978b74 | 2008-07-29 13:38:53 +0900 | [diff] [blame] | 144 | |
FUJITA Tomonori | 9f6ac57 | 2008-09-24 20:48:35 +0900 | [diff] [blame] | 145 | void *dma_generic_alloc_coherent(struct device *dev, size_t size, |
| 146 | dma_addr_t *dma_addr, gfp_t flag) |
| 147 | { |
| 148 | unsigned long dma_mask; |
| 149 | struct page *page; |
| 150 | dma_addr_t addr; |
| 151 | |
| 152 | dma_mask = dma_alloc_coherent_mask(dev, flag); |
| 153 | |
| 154 | flag |= __GFP_ZERO; |
| 155 | again: |
| 156 | page = alloc_pages_node(dev_to_node(dev), flag, get_order(size)); |
| 157 | if (!page) |
| 158 | return NULL; |
| 159 | |
| 160 | addr = page_to_phys(page); |
FUJITA Tomonori | a4c2baa | 2009-07-10 10:04:55 +0900 | [diff] [blame] | 161 | if (addr + size > dma_mask) { |
FUJITA Tomonori | 9f6ac57 | 2008-09-24 20:48:35 +0900 | [diff] [blame] | 162 | __free_pages(page, get_order(size)); |
| 163 | |
Yang Hongyang | 284901a | 2009-04-06 19:01:15 -0700 | [diff] [blame] | 164 | if (dma_mask < DMA_BIT_MASK(32) && !(flag & GFP_DMA)) { |
FUJITA Tomonori | 9f6ac57 | 2008-09-24 20:48:35 +0900 | [diff] [blame] | 165 | flag = (flag & ~GFP_DMA32) | GFP_DMA; |
| 166 | goto again; |
| 167 | } |
| 168 | |
| 169 | return NULL; |
| 170 | } |
| 171 | |
| 172 | *dma_addr = addr; |
| 173 | return page_address(page); |
| 174 | } |
| 175 | |
Glauber Costa | fae9a0d | 2008-04-08 13:20:56 -0300 | [diff] [blame] | 176 | /* |
| 177 | * See <Documentation/x86_64/boot-options.txt> for the iommu kernel parameter |
| 178 | * documentation. |
| 179 | */ |
| 180 | static __init int iommu_setup(char *p) |
| 181 | { |
| 182 | iommu_merge = 1; |
| 183 | |
| 184 | if (!p) |
| 185 | return -EINVAL; |
| 186 | |
| 187 | while (*p) { |
| 188 | if (!strncmp(p, "off", 3)) |
| 189 | no_iommu = 1; |
| 190 | /* gart_parse_options has more force support */ |
| 191 | if (!strncmp(p, "force", 5)) |
| 192 | force_iommu = 1; |
| 193 | if (!strncmp(p, "noforce", 7)) { |
| 194 | iommu_merge = 0; |
| 195 | force_iommu = 0; |
| 196 | } |
| 197 | |
| 198 | if (!strncmp(p, "biomerge", 8)) { |
Glauber Costa | fae9a0d | 2008-04-08 13:20:56 -0300 | [diff] [blame] | 199 | iommu_merge = 1; |
| 200 | force_iommu = 1; |
| 201 | } |
| 202 | if (!strncmp(p, "panic", 5)) |
| 203 | panic_on_overflow = 1; |
| 204 | if (!strncmp(p, "nopanic", 7)) |
| 205 | panic_on_overflow = 0; |
| 206 | if (!strncmp(p, "merge", 5)) { |
| 207 | iommu_merge = 1; |
| 208 | force_iommu = 1; |
| 209 | } |
| 210 | if (!strncmp(p, "nomerge", 7)) |
| 211 | iommu_merge = 0; |
| 212 | if (!strncmp(p, "forcesac", 8)) |
| 213 | iommu_sac_force = 1; |
| 214 | if (!strncmp(p, "allowdac", 8)) |
| 215 | forbid_dac = 0; |
| 216 | if (!strncmp(p, "nodac", 5)) |
| 217 | forbid_dac = -1; |
| 218 | if (!strncmp(p, "usedac", 6)) { |
| 219 | forbid_dac = -1; |
| 220 | return 1; |
| 221 | } |
| 222 | #ifdef CONFIG_SWIOTLB |
| 223 | if (!strncmp(p, "soft", 4)) |
| 224 | swiotlb = 1; |
David Woodhouse | 3238c0c | 2009-07-01 18:56:16 +0100 | [diff] [blame] | 225 | #endif |
Alex Williamson | 8028687 | 2009-07-30 16:15:18 -0600 | [diff] [blame] | 226 | if (!strncmp(p, "pt", 2)) |
Fenghua Yu | 4ed0d3e | 2009-04-24 17:30:20 -0700 | [diff] [blame] | 227 | iommu_pass_through = 1; |
Glauber Costa | fae9a0d | 2008-04-08 13:20:56 -0300 | [diff] [blame] | 228 | |
Glauber Costa | fae9a0d | 2008-04-08 13:20:56 -0300 | [diff] [blame] | 229 | gart_parse_options(p); |
Glauber Costa | fae9a0d | 2008-04-08 13:20:56 -0300 | [diff] [blame] | 230 | |
| 231 | #ifdef CONFIG_CALGARY_IOMMU |
| 232 | if (!strncmp(p, "calgary", 7)) |
| 233 | use_calgary = 1; |
| 234 | #endif /* CONFIG_CALGARY_IOMMU */ |
| 235 | |
| 236 | p += strcspn(p, ","); |
| 237 | if (*p == ',') |
| 238 | ++p; |
| 239 | } |
| 240 | return 0; |
| 241 | } |
| 242 | early_param("iommu", iommu_setup); |
| 243 | |
Glauber Costa | 8e0c379 | 2008-04-08 13:20:55 -0300 | [diff] [blame] | 244 | int dma_supported(struct device *dev, u64 mask) |
| 245 | { |
FUJITA Tomonori | 160c1d8 | 2009-01-05 23:59:02 +0900 | [diff] [blame] | 246 | struct dma_map_ops *ops = get_dma_ops(dev); |
FUJITA Tomonori | 8d8bb39 | 2008-07-25 19:44:49 -0700 | [diff] [blame] | 247 | |
Glauber Costa | 8e0c379 | 2008-04-08 13:20:55 -0300 | [diff] [blame] | 248 | #ifdef CONFIG_PCI |
| 249 | if (mask > 0xffffffff && forbid_dac > 0) { |
Greg Kroah-Hartman | fc3a882 | 2008-05-02 06:02:41 +0200 | [diff] [blame] | 250 | dev_info(dev, "PCI: Disallowing DAC for device\n"); |
Glauber Costa | 8e0c379 | 2008-04-08 13:20:55 -0300 | [diff] [blame] | 251 | return 0; |
| 252 | } |
| 253 | #endif |
| 254 | |
FUJITA Tomonori | 8d8bb39 | 2008-07-25 19:44:49 -0700 | [diff] [blame] | 255 | if (ops->dma_supported) |
| 256 | return ops->dma_supported(dev, mask); |
Glauber Costa | 8e0c379 | 2008-04-08 13:20:55 -0300 | [diff] [blame] | 257 | |
| 258 | /* Copied from i386. Doesn't make much sense, because it will |
| 259 | only work for pci_alloc_coherent. |
| 260 | The caller just has to use GFP_DMA in this case. */ |
Yang Hongyang | 2f4f27d | 2009-04-06 19:01:18 -0700 | [diff] [blame] | 261 | if (mask < DMA_BIT_MASK(24)) |
Glauber Costa | 8e0c379 | 2008-04-08 13:20:55 -0300 | [diff] [blame] | 262 | return 0; |
| 263 | |
| 264 | /* Tell the device to use SAC when IOMMU force is on. This |
| 265 | allows the driver to use cheaper accesses in some cases. |
| 266 | |
| 267 | Problem with this is that if we overflow the IOMMU area and |
| 268 | return DAC as fallback address the device may not handle it |
| 269 | correctly. |
| 270 | |
| 271 | As a special case some controllers have a 39bit address |
| 272 | mode that is as efficient as 32bit (aic79xx). Don't force |
| 273 | SAC for these. Assume all masks <= 40 bits are of this |
| 274 | type. Normally this doesn't make any difference, but gives |
| 275 | more gentle handling of IOMMU overflow. */ |
Yang Hongyang | 50cf156 | 2009-04-06 19:01:14 -0700 | [diff] [blame] | 276 | if (iommu_sac_force && (mask >= DMA_BIT_MASK(40))) { |
Greg Kroah-Hartman | fc3a882 | 2008-05-02 06:02:41 +0200 | [diff] [blame] | 277 | dev_info(dev, "Force SAC with mask %Lx\n", mask); |
Glauber Costa | 8e0c379 | 2008-04-08 13:20:55 -0300 | [diff] [blame] | 278 | return 0; |
| 279 | } |
| 280 | |
| 281 | return 1; |
| 282 | } |
| 283 | EXPORT_SYMBOL(dma_supported); |
| 284 | |
Glauber Costa | cb5867a | 2008-04-08 13:20:51 -0300 | [diff] [blame] | 285 | static int __init pci_iommu_init(void) |
| 286 | { |
Joerg Roedel | 2118d0c | 2009-01-09 15:13:15 +0100 | [diff] [blame] | 287 | dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES); |
| 288 | |
Joerg Roedel | 86f3195 | 2009-03-16 17:50:28 +0100 | [diff] [blame] | 289 | #ifdef CONFIG_PCI |
| 290 | dma_debug_add_bus(&pci_bus_type); |
| 291 | #endif |
| 292 | |
Glauber Costa | cb5867a | 2008-04-08 13:20:51 -0300 | [diff] [blame] | 293 | calgary_iommu_init(); |
Glauber Costa | 459121c9 | 2008-04-08 13:20:43 -0300 | [diff] [blame] | 294 | |
Glauber Costa | cb5867a | 2008-04-08 13:20:51 -0300 | [diff] [blame] | 295 | intel_iommu_init(); |
| 296 | |
Joerg Roedel | a69ca34 | 2008-06-26 21:28:08 +0200 | [diff] [blame] | 297 | amd_iommu_init(); |
| 298 | |
Glauber Costa | cb5867a | 2008-04-08 13:20:51 -0300 | [diff] [blame] | 299 | gart_iommu_init(); |
Glauber Costa | cb5867a | 2008-04-08 13:20:51 -0300 | [diff] [blame] | 300 | |
| 301 | no_iommu_init(); |
| 302 | return 0; |
| 303 | } |
| 304 | |
| 305 | void pci_iommu_shutdown(void) |
| 306 | { |
| 307 | gart_iommu_shutdown(); |
Joerg Roedel | 0975904 | 2009-06-09 17:52:27 +0200 | [diff] [blame] | 308 | |
| 309 | amd_iommu_shutdown(); |
Glauber Costa | cb5867a | 2008-04-08 13:20:51 -0300 | [diff] [blame] | 310 | } |
| 311 | /* Must execute after PCI subsystem */ |
David Woodhouse | 9a821b2 | 2009-10-12 12:59:29 +0100 | [diff] [blame] | 312 | rootfs_initcall(pci_iommu_init); |
Fenghua Yu | 3b15e58 | 2008-10-23 16:51:00 -0700 | [diff] [blame] | 313 | |
| 314 | #ifdef CONFIG_PCI |
| 315 | /* Many VIA bridges seem to corrupt data for DAC. Disable it here */ |
| 316 | |
| 317 | static __devinit void via_no_dac(struct pci_dev *dev) |
| 318 | { |
| 319 | if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI && forbid_dac == 0) { |
Bjorn Helgaas | 13bf757 | 2009-02-24 10:38:22 -0700 | [diff] [blame] | 320 | dev_info(&dev->dev, "disabling DAC on VIA PCI bridge\n"); |
Fenghua Yu | 3b15e58 | 2008-10-23 16:51:00 -0700 | [diff] [blame] | 321 | forbid_dac = 1; |
| 322 | } |
| 323 | } |
| 324 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_ANY_ID, via_no_dac); |
| 325 | #endif |