#include <stdbool.h>
#include "brw_structs.h"
#include "brw_defines.h"
+#include "brw_reg.h"
#include "program/prog_instruction.h"
#ifdef __cplusplus
extern "C" {
#endif
-#define BRW_SWIZZLE4(a,b,c,d) (((a)<<0) | ((b)<<2) | ((c)<<4) | ((d)<<6))
-#define BRW_GET_SWZ(swz, idx) (((swz) >> ((idx)*2)) & 0x3)
-
-#define BRW_SWIZZLE_NOOP BRW_SWIZZLE4(0,1,2,3)
-#define BRW_SWIZZLE_XYZW BRW_SWIZZLE4(0,1,2,3)
-#define BRW_SWIZZLE_XXXX BRW_SWIZZLE4(0,0,0,0)
-#define BRW_SWIZZLE_YYYY BRW_SWIZZLE4(1,1,1,1)
-#define BRW_SWIZZLE_ZZZZ BRW_SWIZZLE4(2,2,2,2)
-#define BRW_SWIZZLE_WWWW BRW_SWIZZLE4(3,3,3,3)
-#define BRW_SWIZZLE_XYXY BRW_SWIZZLE4(0,1,0,1)
-
-static inline bool brw_is_single_value_swizzle(int swiz)
-{
- return (swiz == BRW_SWIZZLE_XXXX ||
- swiz == BRW_SWIZZLE_YYYY ||
- swiz == BRW_SWIZZLE_ZZZZ ||
- swiz == BRW_SWIZZLE_WWWW);
-}
-
-#define REG_SIZE (8*4)
-
-
-/* These aren't hardware structs, just something useful for us to pass around:
- *
- * Align1 operation has a lot of control over input ranges. Used in
- * WM programs to implement shaders decomposed into "channel serial"
- * or "structure of array" form:
- */
-struct brw_reg
-{
- GLuint type:4;
- GLuint file:2;
- GLuint nr:8;
- GLuint subnr:5; /* :1 in align16 */
- GLuint negate:1; /* source only */
- GLuint abs:1; /* source only */
- GLuint vstride:4; /* source only */
- GLuint width:3; /* src only, align1 only */
- GLuint hstride:2; /* align1 only */
- GLuint address_mode:1; /* relative addressing, hopefully! */
- GLuint pad0:1;
-
- union {
- struct {
- GLuint swizzle:8; /* src only, align16 only */
- GLuint writemask:4; /* dest only, align16 only */
- GLint indirect_offset:10; /* relative addressing offset */
- GLuint pad1:10; /* two dwords total */
- } bits;
-
- GLfloat f;
- GLint d;
- GLuint ud;
- } dw1;
-};
-
-
-struct brw_indirect {
- GLuint addr_subnr:4;
- GLint addr_offset:10;
- GLuint pad:18;
-};
-
-
#define BRW_EU_MAX_INSN_STACK 5
struct brw_compile {
int loop_stack_array_size;
};
-static INLINE int type_sz( GLuint type )
-{
- switch( type ) {
- case BRW_REGISTER_TYPE_UD:
- case BRW_REGISTER_TYPE_D:
- case BRW_REGISTER_TYPE_F:
- return 4;
- case BRW_REGISTER_TYPE_HF:
- case BRW_REGISTER_TYPE_UW:
- case BRW_REGISTER_TYPE_W:
- return 2;
- case BRW_REGISTER_TYPE_UB:
- case BRW_REGISTER_TYPE_B:
- return 1;
- default:
- return 0;
- }
-}
-
-/**
- * Construct a brw_reg.
- * \param file one of the BRW_x_REGISTER_FILE values
- * \param nr register number/index
- * \param subnr register sub number
- * \param type one of BRW_REGISTER_TYPE_x
- * \param vstride one of BRW_VERTICAL_STRIDE_x
- * \param width one of BRW_WIDTH_x
- * \param hstride one of BRW_HORIZONTAL_STRIDE_x
- * \param swizzle one of BRW_SWIZZLE_x
- * \param writemask WRITEMASK_X/Y/Z/W bitfield
- */
-static INLINE struct brw_reg brw_reg( GLuint file,
- GLuint nr,
- GLuint subnr,
- GLuint type,
- GLuint vstride,
- GLuint width,
- GLuint hstride,
- GLuint swizzle,
- GLuint writemask )
-{
- struct brw_reg reg;
- if (file == BRW_GENERAL_REGISTER_FILE)
- assert(nr < BRW_MAX_GRF);
- else if (file == BRW_MESSAGE_REGISTER_FILE)
- assert((nr & ~(1 << 7)) < BRW_MAX_MRF);
- else if (file == BRW_ARCHITECTURE_REGISTER_FILE)
- assert(nr <= BRW_ARF_TIMESTAMP);
-
- reg.type = type;
- reg.file = file;
- reg.nr = nr;
- reg.subnr = subnr * type_sz(type);
- reg.negate = 0;
- reg.abs = 0;
- reg.vstride = vstride;
- reg.width = width;
- reg.hstride = hstride;
- reg.address_mode = BRW_ADDRESS_DIRECT;
- reg.pad0 = 0;
-
- /* Could do better: If the reg is r5.3<0;1,0>, we probably want to
- * set swizzle and writemask to W, as the lower bits of subnr will
- * be lost when converted to align16. This is probably too much to
- * keep track of as you'd want it adjusted by suboffset(), etc.
- * Perhaps fix up when converting to align16?
- */
- reg.dw1.bits.swizzle = swizzle;
- reg.dw1.bits.writemask = writemask;
- reg.dw1.bits.indirect_offset = 0;
- reg.dw1.bits.pad1 = 0;
- return reg;
-}
-
-/** Construct float[16] register */
-static INLINE struct brw_reg brw_vec16_reg( GLuint file,
- GLuint nr,
- GLuint subnr )
-{
- return brw_reg(file,
- nr,
- subnr,
- BRW_REGISTER_TYPE_F,
- BRW_VERTICAL_STRIDE_16,
- BRW_WIDTH_16,
- BRW_HORIZONTAL_STRIDE_1,
- BRW_SWIZZLE_XYZW,
- WRITEMASK_XYZW);
-}
-
-/** Construct float[8] register */
-static INLINE struct brw_reg brw_vec8_reg( GLuint file,
- GLuint nr,
- GLuint subnr )
-{
- return brw_reg(file,
- nr,
- subnr,
- BRW_REGISTER_TYPE_F,
- BRW_VERTICAL_STRIDE_8,
- BRW_WIDTH_8,
- BRW_HORIZONTAL_STRIDE_1,
- BRW_SWIZZLE_XYZW,
- WRITEMASK_XYZW);
-}
-
-/** Construct float[4] register */
-static INLINE struct brw_reg brw_vec4_reg( GLuint file,
- GLuint nr,
- GLuint subnr )
-{
- return brw_reg(file,
- nr,
- subnr,
- BRW_REGISTER_TYPE_F,
- BRW_VERTICAL_STRIDE_4,
- BRW_WIDTH_4,
- BRW_HORIZONTAL_STRIDE_1,
- BRW_SWIZZLE_XYZW,
- WRITEMASK_XYZW);
-}
-
-/** Construct float[2] register */
-static INLINE struct brw_reg brw_vec2_reg( GLuint file,
- GLuint nr,
- GLuint subnr )
-{
- return brw_reg(file,
- nr,
- subnr,
- BRW_REGISTER_TYPE_F,
- BRW_VERTICAL_STRIDE_2,
- BRW_WIDTH_2,
- BRW_HORIZONTAL_STRIDE_1,
- BRW_SWIZZLE_XYXY,
- WRITEMASK_XY);
-}
-
-/** Construct float[1] register */
-static INLINE struct brw_reg brw_vec1_reg( GLuint file,
- GLuint nr,
- GLuint subnr )
-{
- return brw_reg(file,
- nr,
- subnr,
- BRW_REGISTER_TYPE_F,
- BRW_VERTICAL_STRIDE_0,
- BRW_WIDTH_1,
- BRW_HORIZONTAL_STRIDE_0,
- BRW_SWIZZLE_XXXX,
- WRITEMASK_X);
-}
-
-
-static INLINE struct brw_reg retype( struct brw_reg reg,
- GLuint type )
-{
- reg.type = type;
- return reg;
-}
-
-static inline struct brw_reg
-sechalf(struct brw_reg reg)
-{
- if (reg.vstride)
- reg.nr++;
- return reg;
-}
-
-static INLINE struct brw_reg suboffset( struct brw_reg reg,
- GLuint delta )
-{
- reg.subnr += delta * type_sz(reg.type);
- return reg;
-}
-
-
-static INLINE struct brw_reg offset( struct brw_reg reg,
- GLuint delta )
-{
- reg.nr += delta;
- return reg;
-}
-
-
-static INLINE struct brw_reg byte_offset( struct brw_reg reg,
- GLuint bytes )
-{
- GLuint newoffset = reg.nr * REG_SIZE + reg.subnr + bytes;
- reg.nr = newoffset / REG_SIZE;
- reg.subnr = newoffset % REG_SIZE;
- return reg;
-}
-
-
-/** Construct unsigned word[16] register */
-static INLINE struct brw_reg brw_uw16_reg( GLuint file,
- GLuint nr,
- GLuint subnr )
-{
- return suboffset(retype(brw_vec16_reg(file, nr, 0), BRW_REGISTER_TYPE_UW), subnr);
-}
-
-/** Construct unsigned word[8] register */
-static INLINE struct brw_reg brw_uw8_reg( GLuint file,
- GLuint nr,
- GLuint subnr )
-{
- return suboffset(retype(brw_vec8_reg(file, nr, 0), BRW_REGISTER_TYPE_UW), subnr);
-}
-
-/** Construct unsigned word[1] register */
-static INLINE struct brw_reg brw_uw1_reg( GLuint file,
- GLuint nr,
- GLuint subnr )
-{
- return suboffset(retype(brw_vec1_reg(file, nr, 0), BRW_REGISTER_TYPE_UW), subnr);
-}
-
-static INLINE struct brw_reg brw_imm_reg( GLuint type )
-{
- return brw_reg( BRW_IMMEDIATE_VALUE,
- 0,
- 0,
- type,
- BRW_VERTICAL_STRIDE_0,
- BRW_WIDTH_1,
- BRW_HORIZONTAL_STRIDE_0,
- 0,
- 0);
-}
-
-/** Construct float immediate register */
-static INLINE struct brw_reg brw_imm_f( GLfloat f )
-{
- struct brw_reg imm = brw_imm_reg(BRW_REGISTER_TYPE_F);
- imm.dw1.f = f;
- return imm;
-}
-
-/** Construct integer immediate register */
-static INLINE struct brw_reg brw_imm_d( GLint d )
-{
- struct brw_reg imm = brw_imm_reg(BRW_REGISTER_TYPE_D);
- imm.dw1.d = d;
- return imm;
-}
-
-/** Construct uint immediate register */
-static INLINE struct brw_reg brw_imm_ud( GLuint ud )
-{
- struct brw_reg imm = brw_imm_reg(BRW_REGISTER_TYPE_UD);
- imm.dw1.ud = ud;
- return imm;
-}
-
-/** Construct ushort immediate register */
-static INLINE struct brw_reg brw_imm_uw( GLushort uw )
-{
- struct brw_reg imm = brw_imm_reg(BRW_REGISTER_TYPE_UW);
- imm.dw1.ud = uw | (uw << 16);
- return imm;
-}
-
-/** Construct short immediate register */
-static INLINE struct brw_reg brw_imm_w( GLshort w )
-{
- struct brw_reg imm = brw_imm_reg(BRW_REGISTER_TYPE_W);
- imm.dw1.d = w | (w << 16);
- return imm;
-}
-
-/* brw_imm_b and brw_imm_ub aren't supported by hardware - the type
- * numbers alias with _V and _VF below:
- */
-
-/** Construct vector of eight signed half-byte values */
-static INLINE struct brw_reg brw_imm_v( GLuint v )
-{
- struct brw_reg imm = brw_imm_reg(BRW_REGISTER_TYPE_V);
- imm.vstride = BRW_VERTICAL_STRIDE_0;
- imm.width = BRW_WIDTH_8;
- imm.hstride = BRW_HORIZONTAL_STRIDE_1;
- imm.dw1.ud = v;
- return imm;
-}
-
-/** Construct vector of four 8-bit float values */
-static INLINE struct brw_reg brw_imm_vf( GLuint v )
-{
- struct brw_reg imm = brw_imm_reg(BRW_REGISTER_TYPE_VF);
- imm.vstride = BRW_VERTICAL_STRIDE_0;
- imm.width = BRW_WIDTH_4;
- imm.hstride = BRW_HORIZONTAL_STRIDE_1;
- imm.dw1.ud = v;
- return imm;
-}
-
-#define VF_ZERO 0x0
-#define VF_ONE 0x30
-#define VF_NEG (1<<7)
-
-static INLINE struct brw_reg brw_imm_vf4( GLuint v0,
- GLuint v1,
- GLuint v2,
- GLuint v3)
-{
- struct brw_reg imm = brw_imm_reg(BRW_REGISTER_TYPE_VF);
- imm.vstride = BRW_VERTICAL_STRIDE_0;
- imm.width = BRW_WIDTH_4;
- imm.hstride = BRW_HORIZONTAL_STRIDE_1;
- imm.dw1.ud = ((v0 << 0) |
- (v1 << 8) |
- (v2 << 16) |
- (v3 << 24));
- return imm;
-}
-
-
-static INLINE struct brw_reg brw_address( struct brw_reg reg )
-{
- return brw_imm_uw(reg.nr * REG_SIZE + reg.subnr);
-}
-
-/** Construct float[1] general-purpose register */
-static INLINE struct brw_reg brw_vec1_grf( GLuint nr, GLuint subnr )
-{
- return brw_vec1_reg(BRW_GENERAL_REGISTER_FILE, nr, subnr);
-}
-
-/** Construct float[2] general-purpose register */
-static INLINE struct brw_reg brw_vec2_grf( GLuint nr, GLuint subnr )
-{
- return brw_vec2_reg(BRW_GENERAL_REGISTER_FILE, nr, subnr);
-}
-
-/** Construct float[4] general-purpose register */
-static INLINE struct brw_reg brw_vec4_grf( GLuint nr, GLuint subnr )
-{
- return brw_vec4_reg(BRW_GENERAL_REGISTER_FILE, nr, subnr);
-}
-
-/** Construct float[8] general-purpose register */
-static INLINE struct brw_reg brw_vec8_grf( GLuint nr, GLuint subnr )
-{
- return brw_vec8_reg(BRW_GENERAL_REGISTER_FILE, nr, subnr);
-}
-
-
-static INLINE struct brw_reg brw_uw8_grf( GLuint nr, GLuint subnr )
-{
- return brw_uw8_reg(BRW_GENERAL_REGISTER_FILE, nr, subnr);
-}
-
-static INLINE struct brw_reg brw_uw16_grf( GLuint nr, GLuint subnr )
-{
- return brw_uw16_reg(BRW_GENERAL_REGISTER_FILE, nr, subnr);
-}
-
-
-/** Construct null register (usually used for setting condition codes) */
-static INLINE struct brw_reg brw_null_reg( void )
-{
- return brw_vec8_reg(BRW_ARCHITECTURE_REGISTER_FILE,
- BRW_ARF_NULL,
- 0);
-}
-
-static INLINE struct brw_reg brw_address_reg( GLuint subnr )
-{
- return brw_uw1_reg(BRW_ARCHITECTURE_REGISTER_FILE,
- BRW_ARF_ADDRESS,
- subnr);
-}
-
-/* If/else instructions break in align16 mode if writemask & swizzle
- * aren't xyzw. This goes against the convention for other scalar
- * regs:
- */
-static INLINE struct brw_reg brw_ip_reg( void )
-{
- return brw_reg(BRW_ARCHITECTURE_REGISTER_FILE,
- BRW_ARF_IP,
- 0,
- BRW_REGISTER_TYPE_UD,
- BRW_VERTICAL_STRIDE_4, /* ? */
- BRW_WIDTH_1,
- BRW_HORIZONTAL_STRIDE_0,
- BRW_SWIZZLE_XYZW, /* NOTE! */
- WRITEMASK_XYZW); /* NOTE! */
-}
-
-static INLINE struct brw_reg brw_acc_reg( void )
-{
- return brw_vec8_reg(BRW_ARCHITECTURE_REGISTER_FILE,
- BRW_ARF_ACCUMULATOR,
- 0);
-}
-
-static INLINE struct brw_reg brw_notification_1_reg(void)
-{
-
- return brw_reg(BRW_ARCHITECTURE_REGISTER_FILE,
- BRW_ARF_NOTIFICATION_COUNT,
- 1,
- BRW_REGISTER_TYPE_UD,
- BRW_VERTICAL_STRIDE_0,
- BRW_WIDTH_1,
- BRW_HORIZONTAL_STRIDE_0,
- BRW_SWIZZLE_XXXX,
- WRITEMASK_X);
-}
-
-
-static INLINE struct brw_reg brw_flag_reg(int reg, int subreg)
-{
- return brw_uw1_reg(BRW_ARCHITECTURE_REGISTER_FILE,
- BRW_ARF_FLAG + reg,
- subreg);
-}
-
-
-static INLINE struct brw_reg brw_mask_reg( GLuint subnr )
-{
- return brw_uw1_reg(BRW_ARCHITECTURE_REGISTER_FILE,
- BRW_ARF_MASK,
- subnr);
-}
-
-static INLINE struct brw_reg brw_message_reg( GLuint nr )
-{
- assert((nr & ~(1 << 7)) < BRW_MAX_MRF);
- return brw_vec8_reg(BRW_MESSAGE_REGISTER_FILE,
- nr,
- 0);
-}
-
-
-
-
-/* This is almost always called with a numeric constant argument, so
- * make things easy to evaluate at compile time:
- */
-static INLINE GLuint cvt( GLuint val )
-{
- switch (val) {
- case 0: return 0;
- case 1: return 1;
- case 2: return 2;
- case 4: return 3;
- case 8: return 4;
- case 16: return 5;
- case 32: return 6;
- }
- return 0;
-}
-
-static INLINE struct brw_reg stride( struct brw_reg reg,
- GLuint vstride,
- GLuint width,
- GLuint hstride )
-{
- reg.vstride = cvt(vstride);
- reg.width = cvt(width) - 1;
- reg.hstride = cvt(hstride);
- return reg;
-}
-
-
-static INLINE struct brw_reg vec16( struct brw_reg reg )
-{
- return stride(reg, 16,16,1);
-}
-
-static INLINE struct brw_reg vec8( struct brw_reg reg )
-{
- return stride(reg, 8,8,1);
-}
-
-static INLINE struct brw_reg vec4( struct brw_reg reg )
-{
- return stride(reg, 4,4,1);
-}
-
-static INLINE struct brw_reg vec2( struct brw_reg reg )
-{
- return stride(reg, 2,2,1);
-}
-
-static INLINE struct brw_reg vec1( struct brw_reg reg )
-{
- return stride(reg, 0,1,0);
-}
-
-
-static INLINE struct brw_reg get_element( struct brw_reg reg, GLuint elt )
-{
- return vec1(suboffset(reg, elt));
-}
-
-static INLINE struct brw_reg get_element_ud( struct brw_reg reg, GLuint elt )
-{
- return vec1(suboffset(retype(reg, BRW_REGISTER_TYPE_UD), elt));
-}
-
-static INLINE struct brw_reg get_element_d( struct brw_reg reg, GLuint elt )
-{
- return vec1(suboffset(retype(reg, BRW_REGISTER_TYPE_D), elt));
-}
-
-
-static INLINE struct brw_reg brw_swizzle( struct brw_reg reg,
- GLuint x,
- GLuint y,
- GLuint z,
- GLuint w)
-{
- assert(reg.file != BRW_IMMEDIATE_VALUE);
-
- reg.dw1.bits.swizzle = BRW_SWIZZLE4(BRW_GET_SWZ(reg.dw1.bits.swizzle, x),
- BRW_GET_SWZ(reg.dw1.bits.swizzle, y),
- BRW_GET_SWZ(reg.dw1.bits.swizzle, z),
- BRW_GET_SWZ(reg.dw1.bits.swizzle, w));
- return reg;
-}
-
-
-static INLINE struct brw_reg brw_swizzle1( struct brw_reg reg,
- GLuint x )
-{
- return brw_swizzle(reg, x, x, x, x);
-}
-
-static INLINE struct brw_reg brw_writemask( struct brw_reg reg,
- GLuint mask )
-{
- assert(reg.file != BRW_IMMEDIATE_VALUE);
- reg.dw1.bits.writemask &= mask;
- return reg;
-}
-
-static INLINE struct brw_reg brw_set_writemask( struct brw_reg reg,
- GLuint mask )
-{
- assert(reg.file != BRW_IMMEDIATE_VALUE);
- reg.dw1.bits.writemask = mask;
- return reg;
-}
-
-static INLINE struct brw_reg negate( struct brw_reg reg )
-{
- reg.negate ^= 1;
- return reg;
-}
-
-static INLINE struct brw_reg brw_abs( struct brw_reg reg )
-{
- reg.abs = 1;
- reg.negate = 0;
- return reg;
-}
-
-/***********************************************************************
- */
-static INLINE struct brw_reg brw_vec4_indirect( GLuint subnr,
- GLint offset )
-{
- struct brw_reg reg = brw_vec4_grf(0, 0);
- reg.subnr = subnr;
- reg.address_mode = BRW_ADDRESS_REGISTER_INDIRECT_REGISTER;
- reg.dw1.bits.indirect_offset = offset;
- return reg;
-}
-
-static INLINE struct brw_reg brw_vec1_indirect( GLuint subnr,
- GLint offset )
-{
- struct brw_reg reg = brw_vec1_grf(0, 0);
- reg.subnr = subnr;
- reg.address_mode = BRW_ADDRESS_REGISTER_INDIRECT_REGISTER;
- reg.dw1.bits.indirect_offset = offset;
- return reg;
-}
-
-static INLINE struct brw_reg deref_4f(struct brw_indirect ptr, GLint offset)
-{
- return brw_vec4_indirect(ptr.addr_subnr, ptr.addr_offset + offset);
-}
-
-static INLINE struct brw_reg deref_1f(struct brw_indirect ptr, GLint offset)
-{
- return brw_vec1_indirect(ptr.addr_subnr, ptr.addr_offset + offset);
-}
-
-static INLINE struct brw_reg deref_4b(struct brw_indirect ptr, GLint offset)
-{
- return retype(deref_4f(ptr, offset), BRW_REGISTER_TYPE_B);
-}
-
-static INLINE struct brw_reg deref_1uw(struct brw_indirect ptr, GLint offset)
-{
- return retype(deref_1f(ptr, offset), BRW_REGISTER_TYPE_UW);
-}
-
-static INLINE struct brw_reg deref_1d(struct brw_indirect ptr, GLint offset)
-{
- return retype(deref_1f(ptr, offset), BRW_REGISTER_TYPE_D);
-}
-
-static INLINE struct brw_reg deref_1ud(struct brw_indirect ptr, GLint offset)
-{
- return retype(deref_1f(ptr, offset), BRW_REGISTER_TYPE_UD);
-}
-
-static INLINE struct brw_reg get_addr_reg(struct brw_indirect ptr)
-{
- return brw_address_reg(ptr.addr_subnr);
-}
-
-static INLINE struct brw_indirect brw_indirect_offset( struct brw_indirect ptr, GLint offset )
-{
- ptr.addr_offset += offset;
- return ptr;
-}
-
-static INLINE struct brw_indirect brw_indirect( GLuint addr_subnr, GLint offset )
-{
- struct brw_indirect ptr;
- ptr.addr_subnr = addr_subnr;
- ptr.addr_offset = offset;
- ptr.pad = 0;
- return ptr;
-}
-
-/** Do two brw_regs refer to the same register? */
-static INLINE bool
-brw_same_reg(struct brw_reg r1, struct brw_reg r2)
-{
- return r1.file == r2.file && r1.nr == r2.nr;
-}
-
static INLINE struct brw_instruction *current_insn( struct brw_compile *p)
{
return &p->store[p->nr_insn];
struct brw_reg src0,
struct brw_reg src1);
-void brw_print_reg( struct brw_reg reg );
-
-
/***********************************************************************
* brw_eu_util.c:
*/
--- /dev/null
+/*
+ Copyright (C) Intel Corp. 2006. All Rights Reserved.
+ Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
+ develop this 3D driver.
+
+ 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 (including the
+ next paragraph) 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 OWNER(S) AND/OR ITS SUPPLIERS 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:
+ * Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+/** @file brw_reg.h
+ *
+ * This file defines struct brw_reg, which is our representation for EU
+ * registers. They're not a hardware specific format, just an abstraction
+ * that intends to capture the full flexibility of the hardware registers.
+ *
+ * The brw_eu_emit.c layer's brw_set_dest/brw_set_src[01] functions encode
+ * the abstract brw_reg type into the actual hardware instruction encoding.
+ */
+
+#ifndef BRW_REG_H
+#define BRW_REG_H
+
+#include <stdbool.h>
+#include "program/prog_instruction.h"
+#include "brw_defines.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define BRW_SWIZZLE4(a,b,c,d) (((a)<<0) | ((b)<<2) | ((c)<<4) | ((d)<<6))
+#define BRW_GET_SWZ(swz, idx) (((swz) >> ((idx)*2)) & 0x3)
+
+#define BRW_SWIZZLE_NOOP BRW_SWIZZLE4(0,1,2,3)
+#define BRW_SWIZZLE_XYZW BRW_SWIZZLE4(0,1,2,3)
+#define BRW_SWIZZLE_XXXX BRW_SWIZZLE4(0,0,0,0)
+#define BRW_SWIZZLE_YYYY BRW_SWIZZLE4(1,1,1,1)
+#define BRW_SWIZZLE_ZZZZ BRW_SWIZZLE4(2,2,2,2)
+#define BRW_SWIZZLE_WWWW BRW_SWIZZLE4(3,3,3,3)
+#define BRW_SWIZZLE_XYXY BRW_SWIZZLE4(0,1,0,1)
+
+static inline bool
+brw_is_single_value_swizzle(int swiz)
+{
+ return (swiz == BRW_SWIZZLE_XXXX ||
+ swiz == BRW_SWIZZLE_YYYY ||
+ swiz == BRW_SWIZZLE_ZZZZ ||
+ swiz == BRW_SWIZZLE_WWWW);
+}
+
+#define REG_SIZE (8*4)
+
+/* These aren't hardware structs, just something useful for us to pass around:
+ *
+ * Align1 operation has a lot of control over input ranges. Used in
+ * WM programs to implement shaders decomposed into "channel serial"
+ * or "structure of array" form:
+ */
+struct brw_reg {
+ unsigned type:4;
+ unsigned file:2;
+ unsigned nr:8;
+ unsigned subnr:5; /* :1 in align16 */
+ unsigned negate:1; /* source only */
+ unsigned abs:1; /* source only */
+ unsigned vstride:4; /* source only */
+ unsigned width:3; /* src only, align1 only */
+ unsigned hstride:2; /* align1 only */
+ unsigned address_mode:1; /* relative addressing, hopefully! */
+ unsigned pad0:1;
+
+ union {
+ struct {
+ unsigned swizzle:8; /* src only, align16 only */
+ unsigned writemask:4; /* dest only, align16 only */
+ int indirect_offset:10; /* relative addressing offset */
+ unsigned pad1:10; /* two dwords total */
+ } bits;
+
+ float f;
+ int d;
+ unsigned ud;
+ } dw1;
+};
+
+
+struct brw_indirect {
+ unsigned addr_subnr:4;
+ int addr_offset:10;
+ unsigned pad:18;
+};
+
+
+static inline int
+type_sz(unsigned type)
+{
+ switch(type) {
+ case BRW_REGISTER_TYPE_UD:
+ case BRW_REGISTER_TYPE_D:
+ case BRW_REGISTER_TYPE_F:
+ return 4;
+ case BRW_REGISTER_TYPE_HF:
+ case BRW_REGISTER_TYPE_UW:
+ case BRW_REGISTER_TYPE_W:
+ return 2;
+ case BRW_REGISTER_TYPE_UB:
+ case BRW_REGISTER_TYPE_B:
+ return 1;
+ default:
+ return 0;
+ }
+}
+
+/**
+ * Construct a brw_reg.
+ * \param file one of the BRW_x_REGISTER_FILE values
+ * \param nr register number/index
+ * \param subnr register sub number
+ * \param type one of BRW_REGISTER_TYPE_x
+ * \param vstride one of BRW_VERTICAL_STRIDE_x
+ * \param width one of BRW_WIDTH_x
+ * \param hstride one of BRW_HORIZONTAL_STRIDE_x
+ * \param swizzle one of BRW_SWIZZLE_x
+ * \param writemask WRITEMASK_X/Y/Z/W bitfield
+ */
+static inline struct brw_reg
+brw_reg(unsigned file,
+ unsigned nr,
+ unsigned subnr,
+ unsigned type,
+ unsigned vstride,
+ unsigned width,
+ unsigned hstride,
+ unsigned swizzle,
+ unsigned writemask)
+{
+ struct brw_reg reg;
+ if (file == BRW_GENERAL_REGISTER_FILE)
+ assert(nr < BRW_MAX_GRF);
+ else if (file == BRW_MESSAGE_REGISTER_FILE)
+ assert((nr & ~(1 << 7)) < BRW_MAX_MRF);
+ else if (file == BRW_ARCHITECTURE_REGISTER_FILE)
+ assert(nr <= BRW_ARF_TIMESTAMP);
+
+ reg.type = type;
+ reg.file = file;
+ reg.nr = nr;
+ reg.subnr = subnr * type_sz(type);
+ reg.negate = 0;
+ reg.abs = 0;
+ reg.vstride = vstride;
+ reg.width = width;
+ reg.hstride = hstride;
+ reg.address_mode = BRW_ADDRESS_DIRECT;
+ reg.pad0 = 0;
+
+ /* Could do better: If the reg is r5.3<0;1,0>, we probably want to
+ * set swizzle and writemask to W, as the lower bits of subnr will
+ * be lost when converted to align16. This is probably too much to
+ * keep track of as you'd want it adjusted by suboffset(), etc.
+ * Perhaps fix up when converting to align16?
+ */
+ reg.dw1.bits.swizzle = swizzle;
+ reg.dw1.bits.writemask = writemask;
+ reg.dw1.bits.indirect_offset = 0;
+ reg.dw1.bits.pad1 = 0;
+ return reg;
+}
+
+/** Construct float[16] register */
+static inline struct brw_reg
+brw_vec16_reg(unsigned file, unsigned nr, unsigned subnr)
+{
+ return brw_reg(file,
+ nr,
+ subnr,
+ BRW_REGISTER_TYPE_F,
+ BRW_VERTICAL_STRIDE_16,
+ BRW_WIDTH_16,
+ BRW_HORIZONTAL_STRIDE_1,
+ BRW_SWIZZLE_XYZW,
+ WRITEMASK_XYZW);
+}
+
+/** Construct float[8] register */
+static inline struct brw_reg
+brw_vec8_reg(unsigned file, unsigned nr, unsigned subnr)
+{
+ return brw_reg(file,
+ nr,
+ subnr,
+ BRW_REGISTER_TYPE_F,
+ BRW_VERTICAL_STRIDE_8,
+ BRW_WIDTH_8,
+ BRW_HORIZONTAL_STRIDE_1,
+ BRW_SWIZZLE_XYZW,
+ WRITEMASK_XYZW);
+}
+
+/** Construct float[4] register */
+static inline struct brw_reg
+brw_vec4_reg(unsigned file, unsigned nr, unsigned subnr)
+{
+ return brw_reg(file,
+ nr,
+ subnr,
+ BRW_REGISTER_TYPE_F,
+ BRW_VERTICAL_STRIDE_4,
+ BRW_WIDTH_4,
+ BRW_HORIZONTAL_STRIDE_1,
+ BRW_SWIZZLE_XYZW,
+ WRITEMASK_XYZW);
+}
+
+/** Construct float[2] register */
+static inline struct brw_reg
+brw_vec2_reg(unsigned file, unsigned nr, unsigned subnr)
+{
+ return brw_reg(file,
+ nr,
+ subnr,
+ BRW_REGISTER_TYPE_F,
+ BRW_VERTICAL_STRIDE_2,
+ BRW_WIDTH_2,
+ BRW_HORIZONTAL_STRIDE_1,
+ BRW_SWIZZLE_XYXY,
+ WRITEMASK_XY);
+}
+
+/** Construct float[1] register */
+static inline struct brw_reg
+brw_vec1_reg(unsigned file, unsigned nr, unsigned subnr)
+{
+ return brw_reg(file,
+ nr,
+ subnr,
+ BRW_REGISTER_TYPE_F,
+ BRW_VERTICAL_STRIDE_0,
+ BRW_WIDTH_1,
+ BRW_HORIZONTAL_STRIDE_0,
+ BRW_SWIZZLE_XXXX,
+ WRITEMASK_X);
+}
+
+
+static inline struct brw_reg
+retype(struct brw_reg reg, unsigned type)
+{
+ reg.type = type;
+ return reg;
+}
+
+static inline struct brw_reg
+sechalf(struct brw_reg reg)
+{
+ if (reg.vstride)
+ reg.nr++;
+ return reg;
+}
+
+static inline struct brw_reg
+suboffset(struct brw_reg reg, unsigned delta)
+{
+ reg.subnr += delta * type_sz(reg.type);
+ return reg;
+}
+
+
+static inline struct brw_reg
+offset(struct brw_reg reg, unsigned delta)
+{
+ reg.nr += delta;
+ return reg;
+}
+
+
+static inline struct brw_reg
+byte_offset(struct brw_reg reg, unsigned bytes)
+{
+ unsigned newoffset = reg.nr * REG_SIZE + reg.subnr + bytes;
+ reg.nr = newoffset / REG_SIZE;
+ reg.subnr = newoffset % REG_SIZE;
+ return reg;
+}
+
+
+/** Construct unsigned word[16] register */
+static inline struct brw_reg
+brw_uw16_reg(unsigned file, unsigned nr, unsigned subnr)
+{
+ return suboffset(retype(brw_vec16_reg(file, nr, 0), BRW_REGISTER_TYPE_UW), subnr);
+}
+
+/** Construct unsigned word[8] register */
+static inline struct brw_reg
+brw_uw8_reg(unsigned file, unsigned nr, unsigned subnr)
+{
+ return suboffset(retype(brw_vec8_reg(file, nr, 0), BRW_REGISTER_TYPE_UW), subnr);
+}
+
+/** Construct unsigned word[1] register */
+static inline struct brw_reg
+brw_uw1_reg(unsigned file, unsigned nr, unsigned subnr)
+{
+ return suboffset(retype(brw_vec1_reg(file, nr, 0), BRW_REGISTER_TYPE_UW), subnr);
+}
+
+static inline struct brw_reg
+brw_imm_reg(unsigned type)
+{
+ return brw_reg(BRW_IMMEDIATE_VALUE,
+ 0,
+ 0,
+ type,
+ BRW_VERTICAL_STRIDE_0,
+ BRW_WIDTH_1,
+ BRW_HORIZONTAL_STRIDE_0,
+ 0,
+ 0);
+}
+
+/** Construct float immediate register */
+static inline struct brw_reg
+brw_imm_f(float f)
+{
+ struct brw_reg imm = brw_imm_reg(BRW_REGISTER_TYPE_F);
+ imm.dw1.f = f;
+ return imm;
+}
+
+/** Construct integer immediate register */
+static inline struct brw_reg
+brw_imm_d(int d)
+{
+ struct brw_reg imm = brw_imm_reg(BRW_REGISTER_TYPE_D);
+ imm.dw1.d = d;
+ return imm;
+}
+
+/** Construct uint immediate register */
+static inline struct brw_reg
+brw_imm_ud(unsigned ud)
+{
+ struct brw_reg imm = brw_imm_reg(BRW_REGISTER_TYPE_UD);
+ imm.dw1.ud = ud;
+ return imm;
+}
+
+/** Construct ushort immediate register */
+static inline struct brw_reg
+brw_imm_uw(uint16_t uw)
+{
+ struct brw_reg imm = brw_imm_reg(BRW_REGISTER_TYPE_UW);
+ imm.dw1.ud = uw | (uw << 16);
+ return imm;
+}
+
+/** Construct short immediate register */
+static inline struct brw_reg
+brw_imm_w(int16_t w)
+{
+ struct brw_reg imm = brw_imm_reg(BRW_REGISTER_TYPE_W);
+ imm.dw1.d = w | (w << 16);
+ return imm;
+}
+
+/* brw_imm_b and brw_imm_ub aren't supported by hardware - the type
+ * numbers alias with _V and _VF below:
+ */
+
+/** Construct vector of eight signed half-byte values */
+static inline struct brw_reg
+brw_imm_v(unsigned v)
+{
+ struct brw_reg imm = brw_imm_reg(BRW_REGISTER_TYPE_V);
+ imm.vstride = BRW_VERTICAL_STRIDE_0;
+ imm.width = BRW_WIDTH_8;
+ imm.hstride = BRW_HORIZONTAL_STRIDE_1;
+ imm.dw1.ud = v;
+ return imm;
+}
+
+/** Construct vector of four 8-bit float values */
+static inline struct brw_reg
+brw_imm_vf(unsigned v)
+{
+ struct brw_reg imm = brw_imm_reg(BRW_REGISTER_TYPE_VF);
+ imm.vstride = BRW_VERTICAL_STRIDE_0;
+ imm.width = BRW_WIDTH_4;
+ imm.hstride = BRW_HORIZONTAL_STRIDE_1;
+ imm.dw1.ud = v;
+ return imm;
+}
+
+#define VF_ZERO 0x0
+#define VF_ONE 0x30
+#define VF_NEG (1<<7)
+
+static inline struct brw_reg
+brw_imm_vf4(unsigned v0, unsigned v1, unsigned v2, unsigned v3)
+{
+ struct brw_reg imm = brw_imm_reg(BRW_REGISTER_TYPE_VF);
+ imm.vstride = BRW_VERTICAL_STRIDE_0;
+ imm.width = BRW_WIDTH_4;
+ imm.hstride = BRW_HORIZONTAL_STRIDE_1;
+ imm.dw1.ud = ((v0 << 0) | (v1 << 8) | (v2 << 16) | (v3 << 24));
+ return imm;
+}
+
+
+static inline struct brw_reg
+brw_address(struct brw_reg reg)
+{
+ return brw_imm_uw(reg.nr * REG_SIZE + reg.subnr);
+}
+
+/** Construct float[1] general-purpose register */
+static inline struct brw_reg
+brw_vec1_grf(unsigned nr, unsigned subnr)
+{
+ return brw_vec1_reg(BRW_GENERAL_REGISTER_FILE, nr, subnr);
+}
+
+/** Construct float[2] general-purpose register */
+static inline struct brw_reg
+brw_vec2_grf(unsigned nr, unsigned subnr)
+{
+ return brw_vec2_reg(BRW_GENERAL_REGISTER_FILE, nr, subnr);
+}
+
+/** Construct float[4] general-purpose register */
+static inline struct brw_reg
+brw_vec4_grf(unsigned nr, unsigned subnr)
+{
+ return brw_vec4_reg(BRW_GENERAL_REGISTER_FILE, nr, subnr);
+}
+
+/** Construct float[8] general-purpose register */
+static inline struct brw_reg
+brw_vec8_grf(unsigned nr, unsigned subnr)
+{
+ return brw_vec8_reg(BRW_GENERAL_REGISTER_FILE, nr, subnr);
+}
+
+
+static inline struct brw_reg
+brw_uw8_grf(unsigned nr, unsigned subnr)
+{
+ return brw_uw8_reg(BRW_GENERAL_REGISTER_FILE, nr, subnr);
+}
+
+static inline struct brw_reg
+brw_uw16_grf(unsigned nr, unsigned subnr)
+{
+ return brw_uw16_reg(BRW_GENERAL_REGISTER_FILE, nr, subnr);
+}
+
+
+/** Construct null register (usually used for setting condition codes) */
+static inline struct brw_reg
+brw_null_reg(void)
+{
+ return brw_vec8_reg(BRW_ARCHITECTURE_REGISTER_FILE, BRW_ARF_NULL, 0);
+}
+
+static inline struct brw_reg
+brw_address_reg(unsigned subnr)
+{
+ return brw_uw1_reg(BRW_ARCHITECTURE_REGISTER_FILE, BRW_ARF_ADDRESS, subnr);
+}
+
+/* If/else instructions break in align16 mode if writemask & swizzle
+ * aren't xyzw. This goes against the convention for other scalar
+ * regs:
+ */
+static inline struct brw_reg
+brw_ip_reg(void)
+{
+ return brw_reg(BRW_ARCHITECTURE_REGISTER_FILE,
+ BRW_ARF_IP,
+ 0,
+ BRW_REGISTER_TYPE_UD,
+ BRW_VERTICAL_STRIDE_4, /* ? */
+ BRW_WIDTH_1,
+ BRW_HORIZONTAL_STRIDE_0,
+ BRW_SWIZZLE_XYZW, /* NOTE! */
+ WRITEMASK_XYZW); /* NOTE! */
+}
+
+static inline struct brw_reg
+brw_acc_reg(void)
+{
+ return brw_vec8_reg(BRW_ARCHITECTURE_REGISTER_FILE, BRW_ARF_ACCUMULATOR, 0);
+}
+
+static inline struct brw_reg
+brw_notification_1_reg(void)
+{
+
+ return brw_reg(BRW_ARCHITECTURE_REGISTER_FILE,
+ BRW_ARF_NOTIFICATION_COUNT,
+ 1,
+ BRW_REGISTER_TYPE_UD,
+ BRW_VERTICAL_STRIDE_0,
+ BRW_WIDTH_1,
+ BRW_HORIZONTAL_STRIDE_0,
+ BRW_SWIZZLE_XXXX,
+ WRITEMASK_X);
+}
+
+
+static inline struct brw_reg
+brw_flag_reg(int reg, int subreg)
+{
+ return brw_uw1_reg(BRW_ARCHITECTURE_REGISTER_FILE,
+ BRW_ARF_FLAG + reg, subreg);
+}
+
+
+static inline struct brw_reg
+brw_mask_reg(unsigned subnr)
+{
+ return brw_uw1_reg(BRW_ARCHITECTURE_REGISTER_FILE, BRW_ARF_MASK, subnr);
+}
+
+static inline struct brw_reg
+brw_message_reg(unsigned nr)
+{
+ assert((nr & ~(1 << 7)) < BRW_MAX_MRF);
+ return brw_vec8_reg(BRW_MESSAGE_REGISTER_FILE, nr, 0);
+}
+
+
+/* This is almost always called with a numeric constant argument, so
+ * make things easy to evaluate at compile time:
+ */
+static inline unsigned cvt(unsigned val)
+{
+ switch (val) {
+ case 0: return 0;
+ case 1: return 1;
+ case 2: return 2;
+ case 4: return 3;
+ case 8: return 4;
+ case 16: return 5;
+ case 32: return 6;
+ }
+ return 0;
+}
+
+static inline struct brw_reg
+stride(struct brw_reg reg, unsigned vstride, unsigned width, unsigned hstride)
+{
+ reg.vstride = cvt(vstride);
+ reg.width = cvt(width) - 1;
+ reg.hstride = cvt(hstride);
+ return reg;
+}
+
+
+static inline struct brw_reg
+vec16(struct brw_reg reg)
+{
+ return stride(reg, 16,16,1);
+}
+
+static inline struct brw_reg
+vec8(struct brw_reg reg)
+{
+ return stride(reg, 8,8,1);
+}
+
+static inline struct brw_reg
+vec4(struct brw_reg reg)
+{
+ return stride(reg, 4,4,1);
+}
+
+static inline struct brw_reg
+vec2(struct brw_reg reg)
+{
+ return stride(reg, 2,2,1);
+}
+
+static inline struct brw_reg
+vec1(struct brw_reg reg)
+{
+ return stride(reg, 0,1,0);
+}
+
+
+static inline struct brw_reg
+get_element(struct brw_reg reg, unsigned elt)
+{
+ return vec1(suboffset(reg, elt));
+}
+
+static inline struct brw_reg
+get_element_ud(struct brw_reg reg, unsigned elt)
+{
+ return vec1(suboffset(retype(reg, BRW_REGISTER_TYPE_UD), elt));
+}
+
+static inline struct brw_reg
+get_element_d(struct brw_reg reg, unsigned elt)
+{
+ return vec1(suboffset(retype(reg, BRW_REGISTER_TYPE_D), elt));
+}
+
+
+static inline struct brw_reg
+brw_swizzle(struct brw_reg reg, unsigned x, unsigned y, unsigned z, unsigned w)
+{
+ assert(reg.file != BRW_IMMEDIATE_VALUE);
+
+ reg.dw1.bits.swizzle = BRW_SWIZZLE4(BRW_GET_SWZ(reg.dw1.bits.swizzle, x),
+ BRW_GET_SWZ(reg.dw1.bits.swizzle, y),
+ BRW_GET_SWZ(reg.dw1.bits.swizzle, z),
+ BRW_GET_SWZ(reg.dw1.bits.swizzle, w));
+ return reg;
+}
+
+
+static inline struct brw_reg
+brw_swizzle1(struct brw_reg reg, unsigned x)
+{
+ return brw_swizzle(reg, x, x, x, x);
+}
+
+static inline struct brw_reg
+brw_writemask(struct brw_reg reg, unsigned mask)
+{
+ assert(reg.file != BRW_IMMEDIATE_VALUE);
+ reg.dw1.bits.writemask &= mask;
+ return reg;
+}
+
+static inline struct brw_reg
+brw_set_writemask(struct brw_reg reg, unsigned mask)
+{
+ assert(reg.file != BRW_IMMEDIATE_VALUE);
+ reg.dw1.bits.writemask = mask;
+ return reg;
+}
+
+static inline struct brw_reg
+negate(struct brw_reg reg)
+{
+ reg.negate ^= 1;
+ return reg;
+}
+
+static inline struct brw_reg
+brw_abs(struct brw_reg reg)
+{
+ reg.abs = 1;
+ reg.negate = 0;
+ return reg;
+}
+
+/************************************************************************/
+
+static inline struct brw_reg
+brw_vec4_indirect(unsigned subnr, int offset)
+{
+ struct brw_reg reg = brw_vec4_grf(0, 0);
+ reg.subnr = subnr;
+ reg.address_mode = BRW_ADDRESS_REGISTER_INDIRECT_REGISTER;
+ reg.dw1.bits.indirect_offset = offset;
+ return reg;
+}
+
+static inline struct brw_reg
+brw_vec1_indirect(unsigned subnr, int offset)
+{
+ struct brw_reg reg = brw_vec1_grf(0, 0);
+ reg.subnr = subnr;
+ reg.address_mode = BRW_ADDRESS_REGISTER_INDIRECT_REGISTER;
+ reg.dw1.bits.indirect_offset = offset;
+ return reg;
+}
+
+static inline struct brw_reg
+deref_4f(struct brw_indirect ptr, int offset)
+{
+ return brw_vec4_indirect(ptr.addr_subnr, ptr.addr_offset + offset);
+}
+
+static inline struct brw_reg
+deref_1f(struct brw_indirect ptr, int offset)
+{
+ return brw_vec1_indirect(ptr.addr_subnr, ptr.addr_offset + offset);
+}
+
+static inline struct brw_reg
+deref_4b(struct brw_indirect ptr, int offset)
+{
+ return retype(deref_4f(ptr, offset), BRW_REGISTER_TYPE_B);
+}
+
+static inline struct brw_reg
+deref_1uw(struct brw_indirect ptr, int offset)
+{
+ return retype(deref_1f(ptr, offset), BRW_REGISTER_TYPE_UW);
+}
+
+static inline struct brw_reg
+deref_1d(struct brw_indirect ptr, int offset)
+{
+ return retype(deref_1f(ptr, offset), BRW_REGISTER_TYPE_D);
+}
+
+static inline struct brw_reg
+deref_1ud(struct brw_indirect ptr, int offset)
+{
+ return retype(deref_1f(ptr, offset), BRW_REGISTER_TYPE_UD);
+}
+
+static inline struct brw_reg
+get_addr_reg(struct brw_indirect ptr)
+{
+ return brw_address_reg(ptr.addr_subnr);
+}
+
+static inline struct brw_indirect
+brw_indirect_offset(struct brw_indirect ptr, int offset)
+{
+ ptr.addr_offset += offset;
+ return ptr;
+}
+
+static inline struct brw_indirect
+brw_indirect(unsigned addr_subnr, int offset)
+{
+ struct brw_indirect ptr;
+ ptr.addr_subnr = addr_subnr;
+ ptr.addr_offset = offset;
+ ptr.pad = 0;
+ return ptr;
+}
+
+/** Do two brw_regs refer to the same register? */
+static inline bool
+brw_same_reg(struct brw_reg r1, struct brw_reg r2)
+{
+ return r1.file == r2.file && r1.nr == r2.nr;
+}
+
+void brw_print_reg(struct brw_reg reg);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
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