diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_fixed.h')
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_fixed.h | 67 |
1 files changed, 0 insertions, 67 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_fixed.h b/drivers/gpu/drm/radeon/radeon_fixed.h deleted file mode 100644 index 3d4d84e078a..00000000000 --- a/drivers/gpu/drm/radeon/radeon_fixed.h +++ /dev/null @@ -1,67 +0,0 @@ -/* - * Copyright 2009 Red Hat Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: Dave Airlie - */ -#ifndef RADEON_FIXED_H -#define RADEON_FIXED_H - -typedef union rfixed { - u32 full; -} fixed20_12; - - -#define rfixed_const(A) (u32)(((A) << 12))/* + ((B + 0.000122)*4096)) */ -#define rfixed_const_half(A) (u32)(((A) << 12) + 2048) -#define rfixed_const_666(A) (u32)(((A) << 12) + 2731) -#define rfixed_const_8(A) (u32)(((A) << 12) + 3277) -#define rfixed_mul(A, B) ((u64)((u64)(A).full * (B).full + 2048) >> 12) -#define fixed_init(A) { .full = rfixed_const((A)) } -#define fixed_init_half(A) { .full = rfixed_const_half((A)) } -#define rfixed_trunc(A) ((A).full >> 12) - -static inline u32 rfixed_floor(fixed20_12 A) -{ - u32 non_frac = rfixed_trunc(A); - - return rfixed_const(non_frac); -} - -static inline u32 rfixed_ceil(fixed20_12 A) -{ - u32 non_frac = rfixed_trunc(A); - - if (A.full > rfixed_const(non_frac)) - return rfixed_const(non_frac + 1); - else - return rfixed_const(non_frac); -} - -static inline u32 rfixed_div(fixed20_12 A, fixed20_12 B) -{ - u64 tmp = ((u64)A.full << 13); - - do_div(tmp, B.full); - tmp += 1; - tmp /= 2; - return lower_32_bits(tmp); -} -#endif |