b6417f2150
This removes the assumption that each platform sotres the IPC buffer address in a platform-specific register. The IPC buffer address is instead stored in a thread-local variable in libsel4 which must be initialised by the runtime.
98 lines
2.5 KiB
C
98 lines
2.5 KiB
C
/*
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* Copyright 2018, Data61
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* Commonwealth Scientific and Industrial Research Organisation (CSIRO)
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* ABN 41 687 119 230.
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*
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* This software may be distributed and modified according to the terms of
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* the GNU General Public License version 2. Note that NO WARRANTY is provided.
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* See "LICENSE_GPLv2.txt" for details.
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*
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* @TAG(DATA61_GPL)
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*/
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/*
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*
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* Copyright 2016, 2017 Hesham Almatary, Data61/CSIRO <hesham.almatary@data61.csiro.au>
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* Copyright 2015, 2016 Hesham Almatary <heshamelmatary@gmail.com>
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*/
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#ifndef __LIBSEL4_ARCH_FUNCTIONS_H
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#define __LIBSEL4_ARCH_FUNCTIONS_H
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#include <sel4/types.h>
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#include <sel4/syscalls.h>
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extern __thread seL4_IPCBuffer *__sel4_ipc_buffer;
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__thread __attribute__((weak)) seL4_IPCBuffer *__sel4_ipc_buffer;
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LIBSEL4_INLINE_FUNC void seL4_SetIPCBuffer(seL4_IPCBuffer *ipc_buffer)
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{
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__sel4_ipc_buffer = ipc_buffer;
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return;
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}
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LIBSEL4_INLINE_FUNC seL4_IPCBuffer *seL4_GetIPCBuffer(void)
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{
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return __sel4_ipc_buffer;
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}
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LIBSEL4_INLINE_FUNC seL4_Word seL4_GetMR(int i)
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{
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return seL4_GetIPCBuffer()->msg[i];
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}
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LIBSEL4_INLINE_FUNC void seL4_SetMR(int i, seL4_Word mr)
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{
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seL4_GetIPCBuffer()->msg[i] = mr;
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}
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LIBSEL4_INLINE_FUNC seL4_Word seL4_GetUserData(void)
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{
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return seL4_GetIPCBuffer()->userData;
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}
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LIBSEL4_INLINE_FUNC void seL4_SetUserData(seL4_Word data)
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{
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seL4_GetIPCBuffer()->userData = data;
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}
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LIBSEL4_INLINE_FUNC seL4_Word seL4_GetBadge(int i)
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{
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return seL4_GetIPCBuffer()->caps_or_badges[i];
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}
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LIBSEL4_INLINE_FUNC seL4_CPtr seL4_GetCap(int i)
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{
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return (seL4_CPtr)seL4_GetIPCBuffer()->caps_or_badges[i];
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}
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LIBSEL4_INLINE_FUNC void seL4_SetCap(int i, seL4_CPtr cptr)
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{
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seL4_GetIPCBuffer()->caps_or_badges[i] = (seL4_Word)cptr;
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}
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LIBSEL4_INLINE_FUNC void seL4_GetCapReceivePath(seL4_CPtr *receiveCNode, seL4_CPtr *receiveIndex,
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seL4_Word *receiveDepth)
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{
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seL4_IPCBuffer *ipcbuffer = seL4_GetIPCBuffer();
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if (receiveCNode != (void *)0) {
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*receiveCNode = ipcbuffer->receiveCNode;
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}
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if (receiveIndex != (void *)0) {
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*receiveIndex = ipcbuffer->receiveIndex;
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}
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if (receiveDepth != (void *)0) {
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*receiveDepth = ipcbuffer->receiveDepth;
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}
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}
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LIBSEL4_INLINE_FUNC void seL4_SetCapReceivePath(seL4_CPtr receiveCNode, seL4_CPtr receiveIndex, seL4_Word receiveDepth)
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{
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seL4_IPCBuffer *ipcbuffer = seL4_GetIPCBuffer();
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ipcbuffer->receiveCNode = receiveCNode;
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ipcbuffer->receiveIndex = receiveIndex;
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ipcbuffer->receiveDepth = receiveDepth;
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}
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#endif
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