84 lines
2.8 KiB
C
84 lines
2.8 KiB
C
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/*
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* Copyright (C) 2010 Francisco Jerez.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include <subdev/fb/regsnv04.h>
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#define NV04_PFB_DEBUG_0 0x00100080
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# define NV04_PFB_DEBUG_0_PAGE_MODE 0x00000001
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# define NV04_PFB_DEBUG_0_REFRESH_OFF 0x00000010
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# define NV04_PFB_DEBUG_0_REFRESH_COUNTX64 0x00003f00
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# define NV04_PFB_DEBUG_0_REFRESH_SLOW_CLK 0x00004000
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# define NV04_PFB_DEBUG_0_SAFE_MODE 0x00008000
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# define NV04_PFB_DEBUG_0_ALOM_ENABLE 0x00010000
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# define NV04_PFB_DEBUG_0_CASOE 0x00100000
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# define NV04_PFB_DEBUG_0_CKE_INVERT 0x10000000
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# define NV04_PFB_DEBUG_0_REFINC 0x20000000
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# define NV04_PFB_DEBUG_0_SAVE_POWER_OFF 0x40000000
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#define NV04_PFB_CFG0 0x00100200
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# define NV04_PFB_CFG0_SCRAMBLE 0x20000000
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#define NV04_PFB_CFG1 0x00100204
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#define NV04_PFB_SCRAMBLE(i) (0x00100400 + 4 * (i))
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#define NV10_PFB_REFCTRL 0x00100210
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# define NV10_PFB_REFCTRL_VALID_1 (1 << 31)
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static inline struct io_mapping *
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fbmem_init(struct nvkm_device *dev)
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{
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return io_mapping_create_wc(dev->func->resource_addr(dev, 1),
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dev->func->resource_size(dev, 1));
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}
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static inline void
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fbmem_fini(struct io_mapping *fb)
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{
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io_mapping_free(fb);
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}
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static inline u32
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fbmem_peek(struct io_mapping *fb, u32 off)
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{
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u8 __iomem *p = io_mapping_map_atomic_wc(fb, off & PAGE_MASK);
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u32 val = ioread32(p + (off & ~PAGE_MASK));
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io_mapping_unmap_atomic(p);
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return val;
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}
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static inline void
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fbmem_poke(struct io_mapping *fb, u32 off, u32 val)
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{
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u8 __iomem *p = io_mapping_map_atomic_wc(fb, off & PAGE_MASK);
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iowrite32(val, p + (off & ~PAGE_MASK));
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wmb();
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io_mapping_unmap_atomic(p);
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}
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static inline bool
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fbmem_readback(struct io_mapping *fb, u32 off, u32 val)
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{
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fbmem_poke(fb, off, val);
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return val == fbmem_peek(fb, off);
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}
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