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/* Copyright (c) 2005 Advanced Micro Devices, 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
* AUTHORS OR COPYRIGHT HOLDERS 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.
*
* Neither the name of the Advanced Micro Devices, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
* */
/*
* This header file contains the macros used to access the hardware. These
* macros assume that 32-bit access is possible, which is true for most
* applications. Projects using 16-bit compilers (the Windows98 display
* driver) and special purpose applications (such as Darwin) need to define
* their own versions of these macros, which typically call a subroutine.
* */
/* ACCESS TO THE CPU REGISTERS */
#define WRITE_REG8(offset, value) \
(*(volatile unsigned char *)(gfx_virt_regptr + (offset))) = (value)
#define WRITE_REG16(offset, value) \
(*(volatile unsigned short *)(gfx_virt_regptr + (offset))) = (value)
#define WRITE_REG32(offset, value) \
(*(volatile unsigned long *)(gfx_virt_regptr + (offset))) = (value)
#define READ_REG16(offset) \
(*(volatile unsigned short *)(gfx_virt_regptr + (offset)))
#define READ_REG32(offset) \
(*(volatile unsigned long *)(gfx_virt_regptr + (offset)))
/* ACCESS TO THE ACCELERATOR REGISTERS (REDCLOUD ONLY) */
#define WRITE_GP8(offset, value) \
(*(volatile unsigned char *)(gfx_virt_gpptr + (offset))) = (value)
#define WRITE_GP16(offset, value) \
(*(volatile unsigned short *)(gfx_virt_gpptr + (offset))) = (value)
#define WRITE_GP32(offset, value) \
(*(volatile unsigned long *)(gfx_virt_gpptr + (offset))) = (value)
#define READ_GP16(offset) \
(*(volatile unsigned short *)(gfx_virt_gpptr + (offset)))
#define READ_GP32(offset) \
(*(volatile unsigned long *)(gfx_virt_gpptr + (offset)))
/* ACCESS TO THE FRAME BUFFER */
#define WRITE_FB32(offset, value) \
(*(volatile unsigned long *)(gfx_virt_fbptr + (offset))) = (value)
#define WRITE_FB16(offset, value) \
(*(volatile unsigned short *)(gfx_virt_fbptr + (offset))) = (value)
#define WRITE_FB8(offset, value) \
(*(volatile unsigned char *)(gfx_virt_fbptr + (offset))) = (value)
/* ACCESS TO THE VIDEO HARDWARE */
#define READ_VID32(offset) \
(*(volatile unsigned long *)(gfx_virt_vidptr + (offset)))
#define WRITE_VID32(offset, value) \
(*(volatile unsigned long *)(gfx_virt_vidptr + (offset))) = (value)
/* ACCESS TO THE VIP HARDWARE */
#define READ_VIP32(offset) \
(*(volatile unsigned long *)(gfx_virt_vipptr + (offset)))
#define WRITE_VIP32(offset, value) \
(*(volatile unsigned long *)(gfx_virt_vipptr + (offset))) = (value)
/* ACCESS TO THE SCRATCHPAD RAM */
#define WRITE_SCRATCH32(offset, value) \
(*(volatile unsigned long *)(gfx_virt_spptr + (offset))) = (value)
#define WRITE_SCRATCH16(offset, value) \
(*(volatile unsigned short *)(gfx_virt_spptr + (offset))) = (value)
#define WRITE_SCRATCH8(offset, value) \
(*(volatile unsigned char *)(gfx_virt_spptr + (offset))) = (value)
#define READ_SCRATCH16(offset) \
(*(volatile unsigned short *)(gfx_virt_spptr + (offset)))
#define READ_SCRATCH32(offset) \
(*(volatile unsigned long *)(gfx_virt_spptr + (offset)))
/* ACCESS TO MSRS */
void gfx_msr_asm_write(unsigned short msrReg, unsigned long msrAddr,
unsigned long *ptrHigh, unsigned long *ptrLow);
void gfx_msr_asm_read(unsigned short msrReg, unsigned long msrAddr,
unsigned long *ptrHigh, unsigned long *ptrLow);
#define MSR_READ( MBD_MSR_CAP, address, valueHigh_ptr, valueLow_ptr ) \
gfx_msr_asm_read( ((unsigned short)(MBD_MSR_CAP)), address, \
valueHigh_ptr, valueLow_ptr )
#define MSR_WRITE( MBD_MSR_CAP, address, valueHigh_ptr, valueLow_ptr ) \
gfx_msr_asm_write( ((unsigned short)(MBD_MSR_CAP)), address, \
valueHigh_ptr, valueLow_ptr )
/* OPTIMIZATION MACROS */
/* The following macros have been added to allow more complete optimization of
* the bitmap-to-screen routines in Durango. These routines also allow
* Durango to run properly within a 16-bit environment.
* */
/*****************************************************************************
* Macro: SET_SCRATCH_BASE
* Purpose: Record the base address of the BLT buffers. The
* WRITE_SCRATCH_STRINGxx macros assume that this address is used
* as the base for all writes.
*
* Arguments:
* scratch_base - offset into the GX base for the first BLT buffer byte.
****************************************************************************/
#define SET_SCRATCH_BASE(scratch_base) \
{ gfx_gx1_scratch_base = (unsigned long)gfx_virt_spptr + scratch_base; }
#ifdef GFX_OPTIMIZE_ASSEMBLY
/*****************************************************************************
* Macro: WRITE_SCRATCH_STRING
* Purpose: Write multiple bytes to the scratchpad buffer
*
* Arguments:
* dword_bytes - number of bytes to transfer. This number will always.
* be a multiple of 4. It cannot be modified within the
* macro (ex. bytes -= 4)
* bytes_extra - number of non-DWORD aligned bytes
* array - pointer to an array of unsigned characters.
* array_offset - offset into the array from which to pull the first
* character.
****************************************************************************/
#define WRITE_SCRATCH_STRING(dwords, bytes, array, array_offset) \
{ \
_asm { mov edi, gfx_gx1_scratch_base } \
_asm { mov esi, array } \
_asm { add esi, array_offset } \
_asm { mov ecx, dwords } \
_asm { shr ecx, 2 } \
_asm { rep movsd } \
_asm { mov ecx, bytes } \
_asm { rep movsb } \
}
/*****************************************************************************
* Macro: WRITE_FRAME_BUFFER_STRING32
* Purpose: Write multiple dwords to the Frame buffer
*
* Arguments:
* fboffset - offset to the beginning frame buffer location.
* bytes - number of bytes to transfer. This number will always.
* be a multiple of 4. It cannot be modified within the
* macro (ex. bytes -= 4)
* array - pointer to an array of unsigned characters.
* array_offset - offset into the array from which to pull the first
* character.
****************************************************************************/
#define WRITE_FRAME_BUFFER_STRING32(fboffset, bytes, array, array_offset) \
{ \
_asm { mov ecx, bytes } \
_asm { shr ecx, 2 } \
_asm { cld } \
_asm { mov edi, gfx_virt_fbptr } \
_asm { add edi, fboffset } \
_asm { mov esi, array } \
_asm { add esi, array_offset } \
_asm { rep movsd } \
}
#else
/*****************************************************************************
* Macro: WRITE_SCRATCH_STRING
* Purpose: Write multiple bytes to the scratchpad buffer
*
* Arguments:
* dword_bytes - number of bytes to transfer. This number will always.
* be a multiple of 4. It cannot be modified within the
* macro (ex. bytes -= 4)
* bytes_extra - number of non-DWORD aligned bytes
* array - pointer to an array of unsigned characters.
* array_offset - offset into the array from which to pull the first
* character.
****************************************************************************/
#define WRITE_SCRATCH_STRING(dword_bytes, bytes_extra, array, array_offset) \
{ \
unsigned long i, j; \
unsigned long aroffset = (unsigned long)array + (array_offset); \
\
/* WRITE DWORDS */ \
\
for (i = 0; i < dword_bytes; i += 4) \
*((volatile unsigned long *)(gfx_gx1_scratch_base + i)) = \
*((unsigned long *)(aroffset + i)); \
\
/* WRITE BYTES */ \
\
j = i + bytes_extra; \
while (i < j) { \
*((volatile unsigned char *)(gfx_gx1_scratch_base + i)) = \
*((unsigned char *)(aroffset + i)); \
i++; \
} \
}
/*****************************************************************************
* Macro: WRITE_FRAME_BUFFER_STRING32
* Purpose: Write multiple dwords to the Frame buffer
*
* Arguments:
* fboffset - offset to the beginning frame buffer location.
* bytes - number of bytes to transfer. This number will always.
* be a multiple of 4. It cannot be modified within the
* macro (ex. bytes -= 4)
* array - pointer to an array of unsigned characters.
* array_offset - offset into the array from which to pull the first
* character.
****************************************************************************/
#define WRITE_FRAME_BUFFER_STRING32(fboffset, bytes, array, array_offset) \
{ \
unsigned long i; \
unsigned long aroffset = (unsigned long)array + (array_offset); \
for (i = 0; i < bytes; i += 4) \
WRITE_FB32 ((fboffset) + i, *((unsigned long *)(aroffset + i))); \
}
#endif
/*****************************************************************************
* Macro: WRITE_FRAME_BUFFER_STRING8
* Purpose: Write multiple bytes to the frame buffer
*
* Arguments:
* spoffset - offset to the beginning frame buffer location.
* bytes - number of bytes to transfer. This number cannot be
* modified within the macro (ex. bytes -= 4)
* array - pointer to an array of unsigned characters.
* array_offset - offset into the array from which to pull the first
* character.
****************************************************************************/
#define WRITE_FRAME_BUFFER_STRING8(fboffset, bytes, array, array_offset) \
{ \
unsigned long i; \
unsigned long aroffset = (unsigned long)array + (array_offset); \
for (i = 0; i < bytes; i++) \
WRITE_FB8 ((fboffset) + i, *((unsigned char *)(aroffset + i))); \
}
/*****************************************************************************
* Macro: WRITE_GPREG_STRING32
* Purpose: Write multiple dwords to one GP register.
*
* Arguments:
* regoffset - Offset of the GP register to be written.
* dwords - number of dwords to transfer. It cannot be modified
* within the macro (ex. dwords--)
* counter - name of a counter variable that can be used in a loop.
* This is used to optimize macros written in C.
* array - pointer to an array of unsigned characters.
* array_offset - offset into the array from which to pull the first
* character.
* temp - name of a temporary variable that can be used for
* calculations.
* This argument is also used for C-only macros.
****************************************************************************/
#define WRITE_GPREG_STRING32(regoffset, dwords, counter, array, \
array_offset, temp) \
{ \
temp = (unsigned long)array + (array_offset); \
for (counter = 0; counter < dwords; counter++) \
WRITE_GP32 (regoffset, *((unsigned long *)temp + counter)); \
}
/*****************************************************************************
* Macro: WRITE_GPREG_STRING8
* Purpose: Write 4 or less bytes to one GP register.
*
* Arguments:
* regoffset - Offset of the GP register to be written.
* bytes - number of bytes to transfer. This number will always.
* be less than 4. It cannot be modified within the
* macro (ex. bytes--)
* shift - name of a shift variable that can be used as a shift
* count.
* This variable holds the initial shift value into the
* GP register.
* counter - name of a counter variable that can be used in a loop.
* This is used to optimize macros written in C.
* array - pointer to an array of unsigned characters.
* array_offset - offset into the array from which to pull the first
* character.
* temp1 - name of a temporary variable that can be used for
* calculations.
* This argument is also used for C-only macros.
* temp2 - name of a temporary variable that can be used for
* calculations.
* This argument is also used for C-only macros.
****************************************************************************/
#define WRITE_GPREG_STRING8(regoffset, bytes, shift, counter, array, \
array_offset, temp1, temp2) \
{ \
if (bytes) { \
temp1 = (unsigned long)array + (array_offset); \
temp2 = 0; \
for (counter = 0; counter < bytes; counter++) { \
temp2 |= ((unsigned long)(*((unsigned char *)(temp1 + \
counter)))) << shift; \
shift += 8; \
} \
WRITE_GP32 (regoffset, temp2); \
} \
}
/* END OF FILE */
|
