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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /media/openmax_dl/dl/api/armCOMM_s.h
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'media/openmax_dl/dl/api/armCOMM_s.h')
-rw-r--r--media/openmax_dl/dl/api/armCOMM_s.h412
1 files changed, 412 insertions, 0 deletions
diff --git a/media/openmax_dl/dl/api/armCOMM_s.h b/media/openmax_dl/dl/api/armCOMM_s.h
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+@// -*- Mode: asm; -*-
+@//
+@// Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
+@//
+@// Use of this source code is governed by a BSD-style license
+@// that can be found in the LICENSE file in the root of the source
+@// tree. An additional intellectual property rights grant can be found
+@// in the file PATENTS. All contributing project authors may
+@// be found in the AUTHORS file in the root of the source tree.
+@//
+@// This file was originally licensed as follows. It has been
+@// relicensed with permission from the copyright holders.
+@//
+
+@//
+@// File Name: armCOMM_s.h
+@// OpenMAX DL: v1.0.2
+@// Last Modified Revision: 13871
+@// Last Modified Date: Fri, 09 May 2008
+@//
+@// (c) Copyright 2007-2008 ARM Limited. All Rights Reserved.
+@//
+@//
+@//
+@// ARM optimized OpenMAX common header file
+@//
+
+ .set _SBytes, 0 @ Number of scratch bytes on stack
+ .set _Workspace, 0 @ Stack offset of scratch workspace
+
+ .set _RRegList, 0 @ R saved register list (last register number)
+ .set _DRegList, 0 @ D saved register list (last register number)
+
+ @// Work out a list of R saved registers, and how much stack space is needed.
+ @// gas doesn't support setting a variable to a string, so we set _RRegList to
+ @// the register number.
+ .macro _M_GETRREGLIST rreg
+ .ifeqs "\rreg", ""
+ @ Nothing needs to be saved
+ .exitm
+ .endif
+ @ If rreg is lr or r4, save lr and r4
+ .ifeqs "\rreg", "lr"
+ .set _RRegList, 4
+ .exitm
+ .endif
+
+ .ifeqs "\rreg", "r4"
+ .set _RRegList, 4
+ .exitm
+ .endif
+
+ @ If rreg = r5 or r6, save up to register r6
+ .ifeqs "\rreg", "r5"
+ .set _RRegList, 6
+ .exitm
+ .endif
+ .ifeqs "\rreg", "r6"
+ .set _RRegList, 6
+ .exitm
+ .endif
+
+ @ If rreg = r7 or r8, save up to register r8
+ .ifeqs "\rreg", "r7"
+ .set _RRegList, 8
+ .exitm
+ .endif
+ .ifeqs "\rreg", "r8"
+ .set _RRegList, 8
+ .exitm
+ .endif
+
+ @ If rreg = r9 or r10, save up to register r10
+ .ifeqs "\rreg", "r9"
+ .set _RRegList, 10
+ .exitm
+ .endif
+ .ifeqs "\rreg", "r10"
+ .set _RRegList, 10
+ .exitm
+ .endif
+
+ @ If rreg = r11 or r12, save up to register r12
+ .ifeqs "\rreg", "r11"
+ .set _RRegList, 12
+ .exitm
+ .endif
+ .ifeqs "\rreg", "r12"
+ .set _RRegList, 12
+ .exitm
+ .endif
+
+ .warning "Unrecognized saved r register limit: \rreg"
+ .endm
+
+ @ Work out list of D saved registers, like for R registers.
+ .macro _M_GETDREGLIST dreg
+ .ifeqs "\dreg", ""
+ .set _DRegList, 0
+ .exitm
+ .endif
+
+ .ifeqs "\dreg", "d8"
+ .set _DRegList, 8
+ .exitm
+ .endif
+
+ .ifeqs "\dreg", "d9"
+ .set _DRegList, 9
+ .exitm
+ .endif
+
+ .ifeqs "\dreg", "d10"
+ .set _DRegList, 10
+ .exitm
+ .endif
+
+ .ifeqs "\dreg", "d11"
+ .set _DRegList, 11
+ .exitm
+ .endif
+
+ .ifeqs "\dreg", "d12"
+ .set _DRegList, 12
+ .exitm
+ .endif
+
+ .ifeqs "\dreg", "d13"
+ .set _DRegList, 13
+ .exitm
+ .endif
+
+ .ifeqs "\dreg", "d14"
+ .set _DRegList, 14
+ .exitm
+ .endif
+
+ .ifeqs "\dreg", "d15"
+ .set _DRegList, 15
+ .exitm
+ .endif
+
+ .warning "Unrecognized saved d register limit: \rreg"
+ .endm
+
+@//////////////////////////////////////////////////////////
+@// Function header and footer macros
+@//////////////////////////////////////////////////////////
+
+ @ Function Header Macro
+ @ Generates the function prologue
+ @ Note that functions should all be "stack-moves-once"
+ @ The FNSTART and FNEND macros should be the only places
+ @ where the stack moves.
+ @
+ @ name = function name
+ @ rreg = "" don't stack any registers
+ @ "lr" stack "lr" only
+ @ "rN" stack registers "r4-rN,lr"
+ @ dreg = "" don't stack any D registers
+ @ "dN" stack registers "d8-dN"
+ @
+ @ Note: ARM Archicture procedure call standard AAPCS
+ @ states that r4-r11, sp, d8-d15 must be preserved by
+ @ a compliant function.
+ .macro M_START name, rreg, dreg
+ .set _Workspace, 0
+
+ @ Define the function and make it external.
+ .global \name
+ .func \name
+ .section .text.\name,"ax",%progbits
+ .arch armv7-a
+ .fpu neon
+ .object_arch armv4
+ .align 2
+\name :
+.fnstart
+ @ Save specified R registers
+ _M_GETRREGLIST \rreg
+ _M_PUSH_RREG
+
+ @ Save specified D registers
+ _M_GETDREGLIST \dreg
+ _M_PUSH_DREG
+
+ @ Ensure size claimed on stack is 8-byte aligned
+ .if (_SBytes & 7) != 0
+ .set _SBytes, _SBytes + (8 - (_SBytes & 7))
+ .endif
+ .if _SBytes != 0
+ sub sp, sp, #_SBytes
+ .endif
+ .endm
+
+ @ Function Footer Macro
+ @ Generates the function epilogue
+ .macro M_END
+ @ Restore the stack pointer to its original value on function entry
+ .if _SBytes != 0
+ add sp, sp, #_SBytes
+ .endif
+ @ Restore any saved R or D registers.
+ _M_RET
+ .fnend
+ .endfunc
+ @ Reset the global stack tracking variables back to their
+ @ initial values.
+ .set _SBytes, 0
+ .endm
+
+ @// Based on the value of _DRegList, push the specified set of registers
+ @// to the stack. Is there a better way?
+ .macro _M_PUSH_DREG
+ .if _DRegList == 8
+ vpush {d8}
+ .exitm
+ .endif
+
+ .if _DRegList == 9
+ vpush {d8-d9}
+ .exitm
+ .endif
+
+ .if _DRegList == 10
+ vpush {d8-d10}
+ .exitm
+ .endif
+
+ .if _DRegList == 11
+ vpush {d8-d11}
+ .exitm
+ .endif
+
+ .if _DRegList == 12
+ vpush {d8-d12}
+ .exitm
+ .endif
+
+ .if _DRegList == 13
+ vpush {d8-d13}
+ .exitm
+ .endif
+
+ .if _DRegList == 14
+ vpush {d8-d14}
+ .exitm
+ .endif
+
+ .if _DRegList == 15
+ vpush {d8-d15}
+ .exitm
+ .endif
+ .endm
+
+ @// Based on the value of _RRegList, push the specified set of registers
+ @// to the stack. Is there a better way?
+ .macro _M_PUSH_RREG
+ .if _RRegList == 4
+ stmfd sp!, {r4, lr}
+ .exitm
+ .endif
+
+ .if _RRegList == 6
+ stmfd sp!, {r4-r6, lr}
+ .exitm
+ .endif
+
+ .if _RRegList == 8
+ stmfd sp!, {r4-r8, lr}
+ .exitm
+ .endif
+
+ .if _RRegList == 10
+ stmfd sp!, {r4-r10, lr}
+ .exitm
+ .endif
+
+ .if _RRegList == 12
+ stmfd sp!, {r4-r12, lr}
+ .exitm
+ .endif
+ .endm
+
+ @// The opposite of _M_PUSH_DREG
+ .macro _M_POP_DREG
+ .if _DRegList == 8
+ vpop {d8}
+ .exitm
+ .endif
+
+ .if _DRegList == 9
+ vpop {d8-d9}
+ .exitm
+ .endif
+
+ .if _DRegList == 10
+ vpop {d8-d10}
+ .exitm
+ .endif
+
+ .if _DRegList == 11
+ vpop {d8-d11}
+ .exitm
+ .endif
+
+ .if _DRegList == 12
+ vpop {d8-d12}
+ .exitm
+ .endif
+
+ .if _DRegList == 13
+ vpop {d8-d13}
+ .exitm
+ .endif
+
+ .if _DRegList == 14
+ vpop {d8-d14}
+ .exitm
+ .endif
+
+ .if _DRegList == 15
+ vpop {d8-d15}
+ .exitm
+ .endif
+ .endm
+
+ @// The opposite of _M_PUSH_RREG
+ .macro _M_POP_RREG cc
+ .if _RRegList == 0
+ bx\cc lr
+ .exitm
+ .endif
+ .if _RRegList == 4
+ ldm\cc\()fd sp!, {r4, pc}
+ .exitm
+ .endif
+
+ .if _RRegList == 6
+ ldm\cc\()fd sp!, {r4-r6, pc}
+ .exitm
+ .endif
+
+ .if _RRegList == 8
+ ldm\cc\()fd sp!, {r4-r8, pc}
+ .exitm
+ .endif
+
+ .if _RRegList == 10
+ ldm\cc\()fd sp!, {r4-r10, pc}
+ .exitm
+ .endif
+
+ .if _RRegList == 12
+ ldm\cc\()fd sp!, {r4-r12, pc}
+ .exitm
+ .endif
+ .endm
+
+ @ Produce function return instructions
+ .macro _M_RET cc
+ _M_POP_DREG \cc
+ _M_POP_RREG \cc
+ .endm
+
+ @// Allocate 4-byte aligned area of name
+ @// |name| and size |size| bytes.
+ .macro M_ALLOC4 name, size
+ .if (_SBytes & 3) != 0
+ .set _SBytes, _SBytes + (4 - (_SBytes & 3))
+ .endif
+ .set \name\()_F, _SBytes
+ .set _SBytes, _SBytes + \size
+
+ .endm
+
+ @ Load word from stack
+ .macro M_LDR r, a0, a1, a2, a3
+ _M_DATA "ldr", 4, \r, \a0, \a1, \a2, \a3
+ .endm
+
+ @ Store word to stack
+ .macro M_STR r, a0, a1, a2, a3
+ _M_DATA "str", 4, \r, \a0, \a1, \a2, \a3
+ .endm
+
+ @ Macro to perform a data access operation
+ @ Such as LDR or STR
+ @ The addressing mode is modified such that
+ @ 1. If no address is given then the name is taken
+ @ as a stack offset
+ @ 2. If the addressing mode is not available for the
+ @ state being assembled for (eg Thumb) then a suitable
+ @ addressing mode is substituted.
+ @
+ @ On Entry:
+ @ $i = Instruction to perform (eg "LDRB")
+ @ $a = Required byte alignment
+ @ $r = Register(s) to transfer (eg "r1")
+ @ $a0,$a1,$a2. Addressing mode and condition. One of:
+ @ label {,cc}
+ @ [base] {,,,cc}
+ @ [base, offset]{!} {,,cc}
+ @ [base, offset, shift]{!} {,cc}
+ @ [base], offset {,,cc}
+ @ [base], offset, shift {,cc}
+ @
+ @ WARNING: Most of the above are not supported, except the first case.
+ .macro _M_DATA i, a, r, a0, a1, a2, a3
+ .set _Offset, _Workspace + \a0\()_F
+ \i\a1 \r, [sp, #_Offset]
+ .endm