| Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1 | /* Copyright (c) 2002,2007-2011, Code Aurora Forum. All rights reserved. |
| 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | * |
| 12 | */ |
| 13 | #ifndef __KGSL_SHAREDMEM_H |
| 14 | #define __KGSL_SHAREDMEM_H |
| 15 | |
| 16 | #include <linux/dma-mapping.h> |
| 17 | |
| 18 | struct kgsl_device; |
| 19 | struct kgsl_process_private; |
| 20 | |
| 21 | #define KGSL_CACHE_OP_INV 0x01 |
| 22 | #define KGSL_CACHE_OP_FLUSH 0x02 |
| 23 | #define KGSL_CACHE_OP_CLEAN 0x03 |
| 24 | |
| 25 | /** Set if the memdesc describes cached memory */ |
| 26 | #define KGSL_MEMFLAGS_CACHED 0x00000001 |
| 27 | |
| 28 | struct kgsl_memdesc_ops { |
| 29 | unsigned long (*physaddr)(struct kgsl_memdesc *, unsigned int); |
| 30 | void (*outer_cache)(struct kgsl_memdesc *, int); |
| 31 | int (*vmflags)(struct kgsl_memdesc *); |
| 32 | int (*vmfault)(struct kgsl_memdesc *, struct vm_area_struct *, |
| 33 | struct vm_fault *); |
| 34 | void (*free)(struct kgsl_memdesc *memdesc); |
| 35 | }; |
| 36 | |
| 37 | extern struct kgsl_memdesc_ops kgsl_vmalloc_ops; |
| 38 | extern struct kgsl_memdesc_ops kgsl_contiguous_ops; |
| 39 | extern struct kgsl_memdesc_ops kgsl_userptr_ops; |
| 40 | |
| 41 | int kgsl_sharedmem_vmalloc(struct kgsl_memdesc *memdesc, |
| 42 | struct kgsl_pagetable *pagetable, size_t size); |
| 43 | |
| 44 | int kgsl_sharedmem_vmalloc_user(struct kgsl_memdesc *memdesc, |
| 45 | struct kgsl_pagetable *pagetable, |
| 46 | size_t size, int flags); |
| 47 | |
| 48 | int kgsl_sharedmem_alloc_coherent(struct kgsl_memdesc *memdesc, size_t size); |
| 49 | |
| 50 | int kgsl_sharedmem_ebimem_user(struct kgsl_memdesc *memdesc, |
| 51 | struct kgsl_pagetable *pagetable, |
| 52 | size_t size, int flags); |
| 53 | |
| 54 | int kgsl_sharedmem_ebimem(struct kgsl_memdesc *memdesc, |
| 55 | struct kgsl_pagetable *pagetable, |
| 56 | size_t size); |
| 57 | |
| 58 | void kgsl_sharedmem_free(struct kgsl_memdesc *memdesc); |
| 59 | |
| 60 | int kgsl_sharedmem_readl(const struct kgsl_memdesc *memdesc, |
| 61 | uint32_t *dst, |
| 62 | unsigned int offsetbytes); |
| 63 | |
| 64 | int kgsl_sharedmem_writel(const struct kgsl_memdesc *memdesc, |
| 65 | unsigned int offsetbytes, |
| 66 | uint32_t src); |
| 67 | |
| 68 | int kgsl_sharedmem_set(const struct kgsl_memdesc *memdesc, |
| 69 | unsigned int offsetbytes, unsigned int value, |
| 70 | unsigned int sizebytes); |
| 71 | |
| 72 | void kgsl_cache_range_op(struct kgsl_memdesc *memdesc, int op); |
| 73 | |
| 74 | void kgsl_process_init_sysfs(struct kgsl_process_private *private); |
| 75 | void kgsl_process_uninit_sysfs(struct kgsl_process_private *private); |
| 76 | |
| 77 | int kgsl_sharedmem_init_sysfs(void); |
| 78 | void kgsl_sharedmem_uninit_sysfs(void); |
| 79 | |
| 80 | static inline int |
| 81 | kgsl_allocate(struct kgsl_memdesc *memdesc, |
| 82 | struct kgsl_pagetable *pagetable, size_t size) |
| 83 | { |
| 84 | #ifdef CONFIG_MSM_KGSL_MMU |
| 85 | return kgsl_sharedmem_vmalloc(memdesc, pagetable, size); |
| 86 | #else |
| 87 | return kgsl_sharedmem_ebimem(memdesc, pagetable, size); |
| 88 | #endif |
| 89 | } |
| 90 | |
| 91 | static inline int |
| 92 | kgsl_allocate_user(struct kgsl_memdesc *memdesc, |
| 93 | struct kgsl_pagetable *pagetable, |
| 94 | size_t size, unsigned int flags) |
| 95 | { |
| 96 | #ifdef CONFIG_MSM_KGSL_MMU |
| 97 | return kgsl_sharedmem_vmalloc_user(memdesc, pagetable, size, flags); |
| 98 | #else |
| 99 | return kgsl_sharedmem_ebimem_user(memdesc, pagetable, size, flags); |
| 100 | #endif |
| 101 | } |
| 102 | |
| 103 | static inline int |
| 104 | kgsl_allocate_contiguous(struct kgsl_memdesc *memdesc, size_t size) |
| 105 | { |
| 106 | int ret = kgsl_sharedmem_alloc_coherent(memdesc, size); |
| 107 | #ifndef CONFIG_MSM_KGSL_MMU |
| 108 | if (!ret) |
| 109 | memdesc->gpuaddr = memdesc->physaddr; |
| 110 | #endif |
| 111 | return ret; |
| 112 | } |
| 113 | |
| 114 | #endif /* __KGSL_SHAREDMEM_H */ |