Changeset 7de18418 in mainline for kernel/arch
- Timestamp:
- 2013-09-08T10:34:41Z (12 years ago)
- Branches:
- lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
- Children:
- 29a3886
- Parents:
- 063a74b9
- Location:
- kernel/arch
- Files:
-
- 5 edited
-
amd64/src/ddi/ddi.c (modified) (7 diffs)
-
amd64/src/proc/task.c (modified) (3 diffs)
-
ia32/src/ddi/ddi.c (modified) (6 diffs)
-
ia32/src/proc/task.c (modified) (1 diff)
-
ia64/src/ddi/ddi.c (modified) (2 diffs)
Legend:
- Unmodified
- Added
- Removed
-
kernel/arch/amd64/src/ddi/ddi.c
r063a74b9 r7de18418 42 42 #include <errno.h> 43 43 #include <arch/cpu.h> 44 #include <cpu.h> 44 45 #include <arch.h> 45 46 #include <align.h> … … 58 59 int ddi_iospace_enable_arch(task_t *task, uintptr_t ioaddr, size_t size) 59 60 { 60 size_t bits = ioaddr + size;61 if ( bits > IO_PORTS)61 size_t elements = ioaddr + size; 62 if (elements > IO_PORTS) 62 63 return ENOENT; 63 64 64 if (task->arch.iomap. bits < bits) {65 if (task->arch.iomap.elements < elements) { 65 66 /* 66 67 * The I/O permission bitmap is too small and needs to be grown. 67 68 */ 68 69 69 uint8_t *newmap = (uint8_t *) malloc(BITS2BYTES(bits), FRAME_ATOMIC);70 if (! newmap)70 void *store = malloc(bitmap_size(elements, 0), FRAME_ATOMIC); 71 if (!store) 71 72 return ENOMEM; 72 73 73 74 bitmap_t oldiomap; 74 bitmap_initialize(&oldiomap, task->arch.iomap. map,75 bitmap_initialize(&oldiomap, task->arch.iomap.elements, 0, 75 76 task->arch.iomap.bits); 76 bitmap_initialize(&task->arch.iomap, newmap, bits); 77 78 bitmap_initialize(&task->arch.iomap, elements, 0, store); 77 79 78 80 /* 79 81 * Mark the new range inaccessible. 80 82 */ 81 bitmap_set_range(&task->arch.iomap, oldiomap. bits,82 bits - oldiomap.bits);83 bitmap_set_range(&task->arch.iomap, oldiomap.elements, 84 elements - oldiomap.elements); 83 85 84 86 /* … … 88 90 if (oldiomap.bits) { 89 91 bitmap_copy(&task->arch.iomap, &oldiomap, 90 oldiomap.bits); 91 free(oldiomap.map); 92 oldiomap.elements); 93 94 free(oldiomap.bits); 92 95 } 93 96 } … … 96 99 * Enable the range and we are done. 97 100 */ 98 bitmap_clear_range(&task->arch.iomap, (size_t) ioaddr, (size_t)size);101 bitmap_clear_range(&task->arch.iomap, (size_t) ioaddr, size); 99 102 100 103 /* … … 118 121 /* First, copy the I/O Permission Bitmap. */ 119 122 irq_spinlock_lock(&TASK->lock, false); 123 120 124 size_t ver = TASK->arch.iomapver; 121 size_t bits = TASK->arch.iomap.bits; 122 if (bits) { 123 ASSERT(TASK->arch.iomap.map); 125 size_t elements = TASK->arch.iomap.elements; 126 127 if (elements > 0) { 128 ASSERT(TASK->arch.iomap.bits); 124 129 125 130 bitmap_t iomap; 126 bitmap_initialize(&iomap, CPU->arch.tss->iomap,127 TSS_IOMAP_SIZE * 8);128 bitmap_copy(&iomap, &TASK->arch.iomap, bits);131 bitmap_initialize(&iomap, TSS_IOMAP_SIZE * 8, 0, 132 CPU->arch.tss->iomap); 133 bitmap_copy(&iomap, &TASK->arch.iomap, elements); 129 134 130 135 /* … … 132 137 * I/O access. 133 138 */ 134 bitmap_set_range(&iomap, bits, ALIGN_UP(bits, 8) - bits); 139 bitmap_set_range(&iomap, elements, 140 ALIGN_UP(elements, 8) - elements); 141 135 142 /* 136 143 * It is safe to set the trailing eight bits because of the 137 144 * extra convenience byte in TSS_IOMAP_SIZE. 138 145 */ 139 bitmap_set_range(&iomap, ALIGN_UP( bits, 8), 8);146 bitmap_set_range(&iomap, ALIGN_UP(elements, 8), 8); 140 147 } 148 141 149 irq_spinlock_unlock(&TASK->lock, false); 142 150 143 151 /* 144 152 * Second, adjust TSS segment limit. 145 * Take the extra ending byte wi ll all bits set into account.153 * Take the extra ending byte with all bits set into account. 146 154 */ 147 155 ptr_16_64_t cpugdtr; … … 149 157 150 158 descriptor_t *gdt_p = (descriptor_t *) cpugdtr.base; 151 gdt_tss_setlimit(&gdt_p[TSS_DES], TSS_BASIC_SIZE + BITS2BYTES(bits)); 159 size_t size = bitmap_size(elements, 0); 160 gdt_tss_setlimit(&gdt_p[TSS_DES], TSS_BASIC_SIZE + size); 152 161 gdtr_load(&cpugdtr); 153 162 -
kernel/arch/amd64/src/proc/task.c
r063a74b9 r7de18418 34 34 35 35 #include <proc/task.h> 36 #include <typedefs.h> 37 #include <adt/bitmap.h> 36 38 #include <mm/slab.h> 37 #include <typedefs.h>38 39 39 40 /** Perform amd64 specific task initialization. … … 45 46 { 46 47 task->arch.iomapver = 0; 47 bitmap_initialize(&task->arch.iomap, NULL, 0);48 bitmap_initialize(&task->arch.iomap, 0, 0, NULL); 48 49 } 49 50 … … 55 56 void task_destroy_arch(task_t *task) 56 57 { 57 if (task->arch.iomap. map)58 free(task->arch.iomap. map);58 if (task->arch.iomap.bits != NULL) 59 free(task->arch.iomap.bits); 59 60 } 60 61 -
kernel/arch/ia32/src/ddi/ddi.c
r063a74b9 r7de18418 59 59 int ddi_iospace_enable_arch(task_t *task, uintptr_t ioaddr, size_t size) 60 60 { 61 size_t bits = ioaddr + size;62 if ( bits > IO_PORTS)61 size_t elements = ioaddr + size; 62 if (elements > IO_PORTS) 63 63 return ENOENT; 64 64 65 if (task->arch.iomap. bits < bits) {65 if (task->arch.iomap.elements < elements) { 66 66 /* 67 67 * The I/O permission bitmap is too small and needs to be grown. 68 68 */ 69 69 70 uint8_t *newmap = (uint8_t *) malloc(BITS2BYTES(bits), FRAME_ATOMIC);71 if (! newmap)70 void *store = malloc(bitmap_size(elements, 0), FRAME_ATOMIC); 71 if (!store) 72 72 return ENOMEM; 73 73 74 74 bitmap_t oldiomap; 75 bitmap_initialize(&oldiomap, task->arch.iomap. map,75 bitmap_initialize(&oldiomap, task->arch.iomap.elements, 0, 76 76 task->arch.iomap.bits); 77 bitmap_initialize(&task->arch.iomap, newmap, bits); 77 78 bitmap_initialize(&task->arch.iomap, elements, 0, store); 78 79 79 80 /* 80 81 * Mark the new range inaccessible. 81 82 */ 82 bitmap_set_range(&task->arch.iomap, oldiomap. bits,83 bits - oldiomap.bits);83 bitmap_set_range(&task->arch.iomap, oldiomap.elements, 84 elements - oldiomap.elements); 84 85 85 86 /* … … 89 90 if (oldiomap.bits) { 90 91 bitmap_copy(&task->arch.iomap, &oldiomap, 91 oldiomap.bits); 92 free(oldiomap.map); 92 oldiomap.elements); 93 94 free(oldiomap.bits); 93 95 } 94 96 } … … 97 99 * Enable the range and we are done. 98 100 */ 99 bitmap_clear_range(&task->arch.iomap, (size_t) ioaddr, (size_t)size);101 bitmap_clear_range(&task->arch.iomap, (size_t) ioaddr, size); 100 102 101 103 /* … … 119 121 /* First, copy the I/O Permission Bitmap. */ 120 122 irq_spinlock_lock(&TASK->lock, false); 123 121 124 size_t ver = TASK->arch.iomapver; 122 size_t bits = TASK->arch.iomap.bits; 123 if (bits) { 124 ASSERT(TASK->arch.iomap.map); 125 size_t elements = TASK->arch.iomap.elements; 126 127 if (elements > 0) { 128 ASSERT(TASK->arch.iomap.bits); 125 129 126 130 bitmap_t iomap; 127 bitmap_initialize(&iomap, CPU->arch.tss->iomap,128 TSS_IOMAP_SIZE * 8);129 bitmap_copy(&iomap, &TASK->arch.iomap, bits);131 bitmap_initialize(&iomap, TSS_IOMAP_SIZE * 8, 0, 132 CPU->arch.tss->iomap); 133 bitmap_copy(&iomap, &TASK->arch.iomap, elements); 130 134 131 135 /* … … 133 137 * I/O access. 134 138 */ 135 bitmap_set_range(&iomap, bits, ALIGN_UP(bits, 8) - bits); 139 bitmap_set_range(&iomap, elements, 140 ALIGN_UP(elements, 8) - elements); 141 136 142 /* 137 143 * It is safe to set the trailing eight bits because of the 138 144 * extra convenience byte in TSS_IOMAP_SIZE. 139 145 */ 140 bitmap_set_range(&iomap, ALIGN_UP( bits, 8), 8);146 bitmap_set_range(&iomap, ALIGN_UP(elements, 8), 8); 141 147 } 148 142 149 irq_spinlock_unlock(&TASK->lock, false); 143 150 … … 150 157 151 158 descriptor_t *gdt_p = (descriptor_t *) cpugdtr.base; 152 gdt_setlimit(&gdt_p[TSS_DES], TSS_BASIC_SIZE + BITS2BYTES(bits)); 159 size_t size = bitmap_size(elements, 0); 160 gdt_setlimit(&gdt_p[TSS_DES], TSS_BASIC_SIZE + size); 153 161 gdtr_load(&cpugdtr); 154 162 -
kernel/arch/ia32/src/proc/task.c
r063a74b9 r7de18418 40 40 /** Perform ia32 specific task initialization. 41 41 * 42 * @param t Task to be initialized. 42 * @param task Task to be initialized. 43 * 43 44 */ 44 void task_create_arch(task_t *t )45 void task_create_arch(task_t *task) 45 46 { 46 t ->arch.iomapver = 0;47 bitmap_initialize(&t ->arch.iomap, NULL, 0);47 task->arch.iomapver = 0; 48 bitmap_initialize(&task->arch.iomap, 0, 0, NULL); 48 49 } 49 50 50 51 /** Perform ia32 specific task destruction. 51 52 * 52 * @param t Task to be initialized. 53 * @param task Task to be initialized. 54 * 53 55 */ 54 void task_destroy_arch(task_t *t )56 void task_destroy_arch(task_t *task) 55 57 { 56 if (t ->arch.iomap.map)57 free(t ->arch.iomap.map);58 if (task->arch.iomap.bits != NULL) 59 free(task->arch.iomap.bits); 58 60 } 59 61 -
kernel/arch/ia64/src/ddi/ddi.c
r063a74b9 r7de18418 56 56 { 57 57 if (!task->arch.iomap) { 58 uint8_t *map;59 60 58 task->arch.iomap = malloc(sizeof(bitmap_t), 0); 61 map = malloc(BITS2BYTES(IO_MEMMAP_PAGES), 0); 62 if(!map) 59 if (task->arch.iomap == NULL) 63 60 return ENOMEM; 64 bitmap_initialize(task->arch.iomap, map, IO_MEMMAP_PAGES); 61 62 void *store = malloc(bitmap_size(IO_MEMMAP_PAGES, 0), 0); 63 if (store == NULL) 64 return ENOMEM; 65 66 bitmap_initialize(task->arch.iomap, IO_MEMMAP_PAGES, 0, store); 65 67 bitmap_clear_range(task->arch.iomap, 0, IO_MEMMAP_PAGES); 66 68 } … … 69 71 size = ALIGN_UP(size + ioaddr - 4 * iopage, PORTS_PER_PAGE); 70 72 bitmap_set_range(task->arch.iomap, iopage, size / 4); 71 73 72 74 return 0; 73 75 }
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