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Message-ID: <1214508490-29683-4-git-send-email-joerg.roedel@amd.com>
Date: Thu, 26 Jun 2008 21:27:39 +0200
From: Joerg Roedel <joerg.roedel@....com>
To: tglx@...utronix.de, mingo@...hat.com
CC: linux-kernel@...r.kernel.org, iommu@...ts.linux-foundation.org,
bhavna.sarathy@....com, Sebastian.Biemueller@....com,
robert.richter@....com, joro@...tes.org,
Joerg Roedel <joerg.roedel@....com>
Subject: [PATCH 03/34] AMD IOMMU: add defines and structures for ACPI scanning code
This patch adds the required data structures and constants required to parse
the ACPI table for the AMD IOMMU.
Signed-off-by: Joerg Roedel <joerg.roedel@....com>
---
arch/x86/kernel/amd_iommu_init.c | 101 ++++++++++++++++++++++++++++++++++++++
1 files changed, 101 insertions(+), 0 deletions(-)
create mode 100644 arch/x86/kernel/amd_iommu_init.c
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
new file mode 100644
index 0000000..6fce5ab
--- /dev/null
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2007-2008 Advanced Micro Devices, Inc.
+ * Author: Joerg Roedel <joerg.roedel@....com>
+ * Leo Duran <leo.duran@....com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/pci.h>
+#include <linux/acpi.h>
+#include <linux/gfp.h>
+#include <linux/list.h>
+#include <asm/pci-direct.h>
+#include <asm/amd_iommu_types.h>
+#include <asm/gart.h>
+
+/*
+ * definitions for the ACPI scanning code
+ */
+#define UPDATE_LAST_BDF(x) do {\
+ if ((x) > amd_iommu_last_bdf) \
+ amd_iommu_last_bdf = (x); \
+ } while (0);
+
+#define DEVID(bus, devfn) (((bus) << 8) | (devfn))
+#define PCI_BUS(x) (((x) >> 8) & 0xff)
+#define IVRS_HEADER_LENGTH 48
+#define TBL_SIZE(x) (1 << (PAGE_SHIFT + get_order(amd_iommu_last_bdf * (x))))
+
+#define ACPI_IVHD_TYPE 0x10
+#define ACPI_IVMD_TYPE_ALL 0x20
+#define ACPI_IVMD_TYPE 0x21
+#define ACPI_IVMD_TYPE_RANGE 0x22
+
+#define IVHD_DEV_ALL 0x01
+#define IVHD_DEV_SELECT 0x02
+#define IVHD_DEV_SELECT_RANGE_START 0x03
+#define IVHD_DEV_RANGE_END 0x04
+#define IVHD_DEV_ALIAS 0x42
+#define IVHD_DEV_ALIAS_RANGE 0x43
+#define IVHD_DEV_EXT_SELECT 0x46
+#define IVHD_DEV_EXT_SELECT_RANGE 0x47
+
+#define IVHD_FLAG_HT_TUN_EN 0x00
+#define IVHD_FLAG_PASSPW_EN 0x01
+#define IVHD_FLAG_RESPASSPW_EN 0x02
+#define IVHD_FLAG_ISOC_EN 0x03
+
+#define IVMD_FLAG_EXCL_RANGE 0x08
+#define IVMD_FLAG_UNITY_MAP 0x01
+
+#define ACPI_DEVFLAG_INITPASS 0x01
+#define ACPI_DEVFLAG_EXTINT 0x02
+#define ACPI_DEVFLAG_NMI 0x04
+#define ACPI_DEVFLAG_SYSMGT1 0x10
+#define ACPI_DEVFLAG_SYSMGT2 0x20
+#define ACPI_DEVFLAG_LINT0 0x40
+#define ACPI_DEVFLAG_LINT1 0x80
+#define ACPI_DEVFLAG_ATSDIS 0x10000000
+
+struct ivhd_header {
+ u8 type;
+ u8 flags;
+ u16 length;
+ u16 devid;
+ u16 cap_ptr;
+ u64 mmio_phys;
+ u16 pci_seg;
+ u16 info;
+ u32 reserved;
+} __attribute__((packed));
+
+struct ivhd_entry {
+ u8 type;
+ u16 devid;
+ u8 flags;
+ u32 ext;
+} __attribute__((packed));
+
+struct ivmd_header {
+ u8 type;
+ u8 flags;
+ u16 length;
+ u16 devid;
+ u16 aux;
+ u64 resv;
+ u64 range_start;
+ u64 range_length;
+} __attribute__((packed));
+
--
1.5.3.7
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