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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:17:27 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:17:27 +0000
commitf215e02bf85f68d3a6106c2a1f4f7f063f819064 (patch)
tree6bb5b92c046312c4e95ac2620b10ddf482d3fa8b /src/VBox/Runtime/r0drv/solaris/alloc-r0drv-solaris.c
parentInitial commit. (diff)
downloadvirtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.tar.xz
virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.zip
Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/VBox/Runtime/r0drv/solaris/alloc-r0drv-solaris.c')
-rw-r--r--src/VBox/Runtime/r0drv/solaris/alloc-r0drv-solaris.c198
1 files changed, 198 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r0drv/solaris/alloc-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/alloc-r0drv-solaris.c
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+++ b/src/VBox/Runtime/r0drv/solaris/alloc-r0drv-solaris.c
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+/* $Id: alloc-r0drv-solaris.c $ */
+/** @file
+ * IPRT - Memory Allocation, Ring-0 Driver, Solaris.
+ */
+
+/*
+ * Copyright (C) 2006-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+
+/*********************************************************************************************************************************
+* Header Files *
+*********************************************************************************************************************************/
+#include "the-solaris-kernel.h"
+#include "internal/iprt.h"
+#include <iprt/mem.h>
+
+#include <iprt/assert.h>
+#include <iprt/errcore.h>
+#include <iprt/log.h>
+#include <iprt/param.h>
+#include <iprt/thread.h>
+#include "r0drv/alloc-r0drv.h"
+
+
+/*********************************************************************************************************************************
+* Structures and Typedefs *
+*********************************************************************************************************************************/
+static ddi_dma_attr_t s_rtR0SolDmaAttr =
+{
+ DMA_ATTR_V0, /* Version Number */
+ (uint64_t)0, /* Lower limit */
+ (uint64_t)0, /* High limit */
+ (uint64_t)0xffffffff, /* Counter limit */
+ (uint64_t)PAGESIZE, /* Alignment */
+ (uint64_t)PAGESIZE, /* Burst size */
+ (uint64_t)PAGESIZE, /* Effective DMA size */
+ (uint64_t)0xffffffff, /* Max DMA xfer size */
+ (uint64_t)0xffffffff, /* Segment boundary */
+ 1, /* Scatter-gather list length (1 for contiguous) */
+ 1, /* Device granularity */
+ 0 /* Bus-specific flags */
+};
+
+extern void *contig_alloc(size_t cb, ddi_dma_attr_t *pDmaAttr, size_t uAlign, int fCanSleep);
+
+
+/**
+ * OS specific allocation function.
+ */
+DECLHIDDEN(int) rtR0MemAllocEx(size_t cb, uint32_t fFlags, PRTMEMHDR *ppHdr)
+{
+ size_t cbAllocated = cb;
+ PRTMEMHDR pHdr;
+ unsigned fKmFlags = fFlags & RTMEMHDR_FLAG_ANY_CTX_ALLOC ? KM_NOSLEEP : KM_SLEEP;
+ if (fFlags & RTMEMHDR_FLAG_ZEROED)
+ pHdr = (PRTMEMHDR)kmem_zalloc(cb + sizeof(*pHdr), fKmFlags);
+ else
+ pHdr = (PRTMEMHDR)kmem_alloc(cb + sizeof(*pHdr), fKmFlags);
+ if (RT_UNLIKELY(!pHdr))
+ {
+ LogRel(("rtMemAllocEx(%u, %#x) failed\n", (unsigned)cb + sizeof(*pHdr), fFlags));
+ return VERR_NO_MEMORY;
+ }
+
+ pHdr->u32Magic = RTMEMHDR_MAGIC;
+ pHdr->fFlags = fFlags;
+ pHdr->cb = cbAllocated;
+ pHdr->cbReq = cb;
+
+ *ppHdr = pHdr;
+ return VINF_SUCCESS;
+}
+
+
+/**
+ * OS specific free function.
+ */
+DECLHIDDEN(void) rtR0MemFree(PRTMEMHDR pHdr)
+{
+ pHdr->u32Magic += 1;
+ kmem_free(pHdr, pHdr->cb + sizeof(*pHdr));
+}
+
+
+/**
+ * Allocates physical memory which satisfy the given constraints.
+ *
+ * @param uPhysHi The upper physical address limit (inclusive).
+ * @param puPhys Where to store the physical address of the allocated
+ * memory. Optional, can be NULL.
+ * @param cb Size of allocation.
+ * @param uAlignment Alignment.
+ * @param fContig Whether the memory must be physically contiguous or
+ * not.
+ * @returns Virtual address of allocated memory block or NULL if allocation
+ * failed.
+ */
+DECLHIDDEN(void *) rtR0SolMemAlloc(uint64_t uPhysHi, uint64_t *puPhys, size_t cb, uint64_t uAlignment, bool fContig)
+{
+ if ((cb & PAGEOFFSET) != 0)
+ return NULL;
+
+ size_t cPages = (cb + PAGESIZE - 1) >> PAGESHIFT;
+ if (!cPages)
+ return NULL;
+
+ ddi_dma_attr_t DmaAttr = s_rtR0SolDmaAttr;
+ DmaAttr.dma_attr_addr_hi = uPhysHi;
+ DmaAttr.dma_attr_align = uAlignment;
+ if (!fContig)
+ DmaAttr.dma_attr_sgllen = cPages > INT_MAX ? INT_MAX - 1 : cPages;
+ else
+ AssertRelease(DmaAttr.dma_attr_sgllen == 1);
+
+ void *pvMem = contig_alloc(cb, &DmaAttr, PAGESIZE, 1 /* can sleep */);
+ if (!pvMem)
+ {
+ LogRel(("rtR0SolMemAlloc failed. cb=%u Align=%u fContig=%d\n", (unsigned)cb, (unsigned)uAlignment, fContig));
+ return NULL;
+ }
+
+ pfn_t PageFrameNum = hat_getpfnum(kas.a_hat, (caddr_t)pvMem);
+ AssertRelease(PageFrameNum != PFN_INVALID);
+ if (puPhys)
+ *puPhys = (uint64_t)PageFrameNum << PAGESHIFT;
+
+ return pvMem;
+}
+
+
+/**
+ * Frees memory allocated using rtR0SolMemAlloc().
+ *
+ * @param pv The memory to free.
+ * @param cb Size of the memory block
+ */
+DECLHIDDEN(void) rtR0SolMemFree(void *pv, size_t cb)
+{
+ if (RT_LIKELY(pv))
+ g_pfnrtR0Sol_contig_free(pv, cb);
+}
+
+
+RTR0DECL(void *) RTMemContAlloc(PRTCCPHYS pPhys, size_t cb)
+{
+ AssertPtrReturn(pPhys, NULL);
+ AssertReturn(cb > 0, NULL);
+ RT_ASSERT_PREEMPTIBLE();
+
+ /* Allocate physically contiguous (< 4GB) page-aligned memory. */
+ uint64_t uPhys;
+ void *pvMem = rtR0SolMemAlloc((uint64_t)_4G - 1, &uPhys, cb, PAGESIZE, true /* fContig */);
+ if (RT_UNLIKELY(!pvMem))
+ {
+ LogRel(("RTMemContAlloc failed to allocate %u bytes\n", cb));
+ return NULL;
+ }
+
+ Assert(uPhys < _4G);
+ *pPhys = uPhys;
+ return pvMem;
+}
+
+
+RTR0DECL(void) RTMemContFree(void *pv, size_t cb)
+{
+ RT_ASSERT_PREEMPTIBLE();
+ rtR0SolMemFree(pv, cb);
+}
+