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-rw-r--r--resources/libreboot/patch/kgpe-d16/0111-southbridge-amd-sr5650-Add-IOMMU-support.patch711
1 files changed, 711 insertions, 0 deletions
diff --git a/resources/libreboot/patch/kgpe-d16/0111-southbridge-amd-sr5650-Add-IOMMU-support.patch b/resources/libreboot/patch/kgpe-d16/0111-southbridge-amd-sr5650-Add-IOMMU-support.patch
new file mode 100644
index 00000000..54f04d08
--- /dev/null
+++ b/resources/libreboot/patch/kgpe-d16/0111-southbridge-amd-sr5650-Add-IOMMU-support.patch
@@ -0,0 +1,711 @@
+From 274c926921dc0f24e15e09beed752f4927220fc6 Mon Sep 17 00:00:00 2001
+From: Timothy Pearson <tpearson@raptorengineeringinc.com>
+Date: Tue, 11 Aug 2015 17:49:06 -0500
+Subject: [PATCH 111/139] southbridge/amd/sr5650: Add IOMMU support
+
+Change-Id: I2083d0c5653515c27d4626c62a6499b850f7547b
+Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
+---
+ src/include/device/pci_ids.h | 1 +
+ src/southbridge/amd/sr5650/cmn.h | 3 +
+ src/southbridge/amd/sr5650/early_setup.c | 50 +++-
+ src/southbridge/amd/sr5650/sr5650.c | 479 ++++++++++++++++++++++++++++++-
+ src/southbridge/amd/sr5650/sr5650.h | 14 +
+ 5 files changed, 537 insertions(+), 10 deletions(-)
+
+diff --git a/src/include/device/pci_ids.h b/src/include/device/pci_ids.h
+index 664ac49..72f1ece 100644
+--- a/src/include/device/pci_ids.h
++++ b/src/include/device/pci_ids.h
+@@ -429,6 +429,7 @@
+ #define PCI_DEVICE_ID_AMD_SR5650_PCIE_DEV12 0x5A20
+ #define PCI_DEVICE_ID_AMD_SR5650_PCIE_DEV13 0x5A1E
+ #define PCI_DEVICE_ID_AMD_SR5650_PCIE_DEV8 0x5A21
++#define PCI_DEVICE_ID_AMD_SR5650_IOMMU 0x5A23
+
+ #define PCI_DEVICE_ID_AMD_CZ_HDA 0x157A
+ #define PCI_DEVICE_ID_AMD_CZ_LPC 0x790E
+diff --git a/src/southbridge/amd/sr5650/cmn.h b/src/southbridge/amd/sr5650/cmn.h
+index 23d25d5..a54bdc5 100644
+--- a/src/southbridge/amd/sr5650/cmn.h
++++ b/src/southbridge/amd/sr5650/cmn.h
+@@ -2,6 +2,7 @@
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2010 Advanced Micro Devices, Inc.
++ * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
+ *
+ * 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
+@@ -26,6 +27,8 @@
+ #define NBHTIU_INDEX 0x94 /* Note: It is different with RS690, whose HTIU index is 0xA8 */
+ #define NBMC_INDEX 0xE8
+ #define NBPCIE_INDEX 0xE0
++#define L2CFG_INDEX 0xF0
++#define L1CFG_INDEX 0xF8
+ #define EXT_CONF_BASE_ADDRESS CONFIG_MMCONF_BASE_ADDRESS
+ #define TEMP_MMIO_BASE_ADDRESS 0xC0000000
+
+diff --git a/src/southbridge/amd/sr5650/early_setup.c b/src/southbridge/amd/sr5650/early_setup.c
+index 62b0dab..e7cca06 100644
+--- a/src/southbridge/amd/sr5650/early_setup.c
++++ b/src/southbridge/amd/sr5650/early_setup.c
+@@ -24,6 +24,8 @@
+ #include <arch/io.h>
+ #include <console/console.h>
+ #include <cpu/x86/msr.h>
++#include <option.h>
++#include <reset.h>
+ #include "sr5650.h"
+ #include "cmn.h"
+
+@@ -271,6 +273,34 @@ void sr5650_htinit(void)
+ /* HT Buffer Allocation for Ganged Links!!! */
+ #endif /* CONFIG_NORTHBRIDGE_AMD_AMDFAM10 || CONFIG_NORTHBRIDGE_AMD_AGESA_FAMILY10 */
+ }
++
++}
++
++/* Must be run immediately after HT setup is complete and first warm reset has occurred (if applicable)
++ * Attempting to switch the NB into isochronous mode before the CPUs have engaged isochronous mode
++ * will cause a system hard lockup...
++ */
++void sr5650_htinit_dect_and_enable_isochronous_link(void)
++{
++ device_t sr5650_f0;
++ unsigned char iommu;
++
++ sr5650_f0 = PCI_DEV(0, 0, 0);
++
++ iommu = 1;
++ get_option(&iommu, "iommu");
++
++ if (iommu) {
++ /* Enable isochronous mode */
++ set_nbcfg_enable_bits(sr5650_f0, 0xc8, 1 << 12, 1 << 12);
++
++ /* Apply pending changes */
++ if (!((pci_read_config32(sr5650_f0, 0xc8) >> 12) & 0x1)) {
++ printk(BIOS_INFO, "...WARM RESET...\n\n\n");
++ soft_reset();
++ die("After soft_reset_x - shouldn't see this message!!!\n");
++ }
++ }
+ }
+
+ #if CONFIG_NORTHBRIDGE_AMD_AMDFAM10 || CONFIG_NORTHBRIDGE_AMD_AGESA_FAMILY10 /* save some spaces */
+@@ -335,8 +365,21 @@ static void sr5650_por_pcicfg_init(device_t nb_dev)
+ *****************************************/
+ static void sr5650_por_misc_index_init(device_t nb_dev)
+ {
+- /* disable IOMMU */
+- set_nbmisc_enable_bits(nb_dev, 0x75, 0x1, 0x0);
++ unsigned char iommu;
++
++ iommu = 1;
++ get_option(&iommu, "iommu");
++
++ if (iommu) {
++ /* enable IOMMU */
++ printk(BIOS_DEBUG, "Enabling IOMMU\n");
++ set_nbmisc_enable_bits(nb_dev, 0x75, 0x1, 0x1);
++ } else {
++ /* disable IOMMU */
++ printk(BIOS_DEBUG, "Disabling IOMMU\n");
++ set_nbmisc_enable_bits(nb_dev, 0x75, 0x1, 0x0);
++ }
++
+ /* NBMISCIND:0x75[29]= 1 Device ID for hotplug and PME message */
+ set_nbmisc_enable_bits(nb_dev, 0x75, 1 << 29, 1 << 29);
+ set_nbmisc_enable_bits(nb_dev, 0x75, 1 << 9, 1 << 9); /* no doc reference, comply with BTS */
+@@ -374,10 +417,11 @@ static void sr5650_por_misc_index_init(device_t nb_dev)
+ * HIDE_NB_AGP_CAP ([0], default=1)HIDE
+ * HIDE_P2P_AGP_CAP ([1], default=1)HIDE
+ * HIDE_NB_GART_BAR ([2], default=1)HIDE
++ * HIDE_MMCFG_BAR ([3], default=1)SHOW
+ * AGPMODE30 ([4], default=0)DISABLE
+ * AGP30ENCHANCED ([5], default=0)DISABLE
+ * HIDE_AGP_CAP ([8], default=1)ENABLE */
+- set_nbmisc_enable_bits(nb_dev, 0x00, 0x0000FFFF, 0 << 0 | 1 << 1 | 1 << 2 | 0 << 6);
++ set_nbmisc_enable_bits(nb_dev, 0x00, 0x0000FFFF, 0 << 0 | 1 << 1 | 1 << 2 | 0 << 3 | 0 << 6);
+
+ /* IOC_LAT_PERF_CNTR_CNTL */
+ set_nbmisc_enable_bits(nb_dev, 0x30, 0xFF, 0x00);
+diff --git a/src/southbridge/amd/sr5650/sr5650.c b/src/southbridge/amd/sr5650/sr5650.c
+index 6db1eb1..b296c47 100644
+--- a/src/southbridge/amd/sr5650/sr5650.c
++++ b/src/southbridge/amd/sr5650/sr5650.c
+@@ -26,7 +26,9 @@
+ #include <device/pci_ops.h>
+ #include <cpu/x86/msr.h>
+ #include <cpu/amd/mtrr.h>
++#include <stdlib.h>
+ #include <delay.h>
++#include <option.h>
+ #include "sr5650.h"
+ #include "cmn.h"
+
+@@ -87,6 +89,26 @@ void nbpcie_ind_write_index(device_t nb_dev, u32 index, u32 data)
+ nb_write_index((nb_dev), NBPCIE_INDEX, (index), (data));
+ }
+
++uint32_t l2cfg_ind_read_index(device_t nb_dev, uint32_t index)
++{
++ return nb_read_index((nb_dev), L2CFG_INDEX, (index));
++}
++
++void l2cfg_ind_write_index(device_t nb_dev, uint32_t index, uint32_t data)
++{
++ nb_write_index((nb_dev), L2CFG_INDEX | (0x1 << 8), (index), (data));
++}
++
++uint32_t l1cfg_ind_read_index(device_t nb_dev, uint32_t index)
++{
++ return nb_read_index((nb_dev), L1CFG_INDEX, (index));
++}
++
++void l1cfg_ind_write_index(device_t nb_dev, uint32_t index, uint32_t data)
++{
++ nb_write_index((nb_dev), L1CFG_INDEX | (0x1 << 31), (index), (data));
++}
++
+ /***********************************************************
+ * To access bar3 we need to program PCI MMIO 7 in K8.
+ * in_out:
+@@ -286,6 +308,240 @@ u32 get_vid_did(device_t dev)
+ return pci_read_config32(dev, 0);
+ }
+
++void detect_and_enable_iommu(device_t iommu_dev) {
++ uint32_t dword;
++ uint8_t l1_target;
++ unsigned char iommu;
++ void * mmio_base;
++
++ iommu = 1;
++ get_option(&iommu, "iommu");
++
++ if (iommu) {
++ printk(BIOS_DEBUG, "Initializing IOMMU\n");
++
++ device_t nb_dev = dev_find_slot(0, PCI_DEVFN(0, 0));
++
++ if (!nb_dev) {
++ printk(BIOS_WARNING, "Unable to find SR5690 device! IOMMU NOT initialized\n");
++ return;
++ }
++
++ mmio_base = (void*)(pci_read_config32(iommu_dev, 0x44) & 0xffffc000);
++
++ // if (get_nb_rev(nb_dev) == REV_SR5650_A11) {
++ // dword = pci_read_config32(iommu_dev, 0x6c);
++ // dword &= ~(0x1 << 8);
++ // pci_write_config32(iommu_dev, 0x6c, dword);
++ // }
++
++ dword = pci_read_config32(iommu_dev, 0x50);
++ dword &= ~(0x1 << 22);
++ pci_write_config32(iommu_dev, 0x50, dword);
++
++ dword = pci_read_config32(iommu_dev, 0x44);
++ dword |= 0x1;
++ pci_write_config32(iommu_dev, 0x44, dword);
++
++ write32((void*)(mmio_base + 0x8), 0x0);
++ write32((void*)(mmio_base + 0xc), 0x08000000);
++ write32((void*)(mmio_base + 0x10), 0x0);
++ write32((void*)(mmio_base + 0x2008), 0x0);
++ write32((void*)(mmio_base + 0x2010), 0x0);
++
++ /* IOMMU L1 initialization */
++ for (l1_target = 0; l1_target < 6; l1_target++) {
++ dword = l1cfg_ind_read_index(nb_dev, (l1_target << 16) + 0xc);
++ dword |= (0x7 << 28);
++ l1cfg_ind_write_index(nb_dev, (l1_target << 16) + 0xc, dword);
++
++ dword = l1cfg_ind_read_index(nb_dev, (l1_target << 16) + 0x7);
++ dword |= (0x1 << 5);
++ l1cfg_ind_write_index(nb_dev, (l1_target << 16) + 0x7, dword);
++ }
++
++ /* IOMMU L2 initialization */
++ dword = l2cfg_ind_read_index(nb_dev, 0xc);
++ dword |= (0x7 << 29);
++ l2cfg_ind_write_index(nb_dev, 0xc, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x10);
++ dword &= ~(0x3 << 8);
++ dword |= (0x2 << 8);
++ l2cfg_ind_write_index(nb_dev, 0x10, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x14);
++ dword &= ~(0x3 << 8);
++ dword |= (0x2 << 8);
++ l2cfg_ind_write_index(nb_dev, 0x14, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x18);
++ dword &= ~(0x3 << 8);
++ dword |= (0x2 << 8);
++ l2cfg_ind_write_index(nb_dev, 0x18, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x1c);
++ dword &= ~(0x3 << 8);
++ dword |= (0x2 << 8);
++ l2cfg_ind_write_index(nb_dev, 0x1c, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x50);
++ dword &= ~(0x3 << 8);
++ dword |= (0x2 << 8);
++ l2cfg_ind_write_index(nb_dev, 0x50, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x10);
++ dword |= (0x1 << 4);
++ l2cfg_ind_write_index(nb_dev, 0x10, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x14);
++ dword |= (0x1 << 4);
++ l2cfg_ind_write_index(nb_dev, 0x14, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x18);
++ dword |= (0x1 << 4);
++ l2cfg_ind_write_index(nb_dev, 0x18, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x1c);
++ dword |= (0x1 << 4);
++ l2cfg_ind_write_index(nb_dev, 0x1c, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x50);
++ dword |= (0x1 << 4);
++ l2cfg_ind_write_index(nb_dev, 0x50, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x6);
++ dword |= (0x1 << 7);
++ l2cfg_ind_write_index(nb_dev, 0x6, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x44);
++ dword |= (0x1 << 0);
++ l2cfg_ind_write_index(nb_dev, 0x44, dword);
++
++// if (get_nb_rev(nb_dev) == REV_SR5650_A21) {
++ dword = l2cfg_ind_read_index(nb_dev, 0x7);
++ dword |= (0x1 << 1);
++ l2cfg_ind_write_index(nb_dev, 0x7, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x44);
++ dword |= (0x1 << 1);
++ l2cfg_ind_write_index(nb_dev, 0x44, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x7);
++ dword |= (0x1 << 2);
++ l2cfg_ind_write_index(nb_dev, 0x7, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x7);
++ dword |= (0x1 << 3);
++ l2cfg_ind_write_index(nb_dev, 0x7, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x44);
++ dword |= (0x1 << 3);
++ l2cfg_ind_write_index(nb_dev, 0x44, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x7);
++ dword |= (0x1 << 4);
++ l2cfg_ind_write_index(nb_dev, 0x7, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x6);
++ dword |= (0x1 << 5);
++ l2cfg_ind_write_index(nb_dev, 0x6, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x6);
++ dword |= (0x1 << 6);
++ l2cfg_ind_write_index(nb_dev, 0x6, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x7);
++ dword |= (0x1 << 5);
++ l2cfg_ind_write_index(nb_dev, 0x7, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x44);
++ dword |= (0x1 << 4);
++ l2cfg_ind_write_index(nb_dev, 0x44, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x7);
++ dword |= (0x1 << 6);
++ l2cfg_ind_write_index(nb_dev, 0x7, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x7);
++ dword |= (0x1 << 7);
++ l2cfg_ind_write_index(nb_dev, 0x7, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x6);
++ dword |= (0x1 << 8);
++ l2cfg_ind_write_index(nb_dev, 0x6, dword);
++// }
++
++ l2cfg_ind_write_index(nb_dev, 0x52, 0xf0000002);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x80);
++ dword |= (0x1 << 0);
++ l2cfg_ind_write_index(nb_dev, 0x80, dword);
++
++ dword = l2cfg_ind_read_index(nb_dev, 0x30);
++ dword |= (0x1 << 0);
++ l2cfg_ind_write_index(nb_dev, 0x30, dword);
++ }
++}
++
++void sr5650_iommu_read_resources(device_t dev)
++{
++ unsigned char iommu;
++ struct resource *res;
++
++ iommu = 1;
++ get_option(&iommu, "iommu");
++
++ /* Get the normal pci resources of this device */
++ pci_dev_read_resources(dev);
++
++ if (iommu) {
++ /* Request MMIO range allocation */
++ res = new_resource(dev, 0x44); /* IOMMU */
++ res->base = 0x0;
++ res->size = 0x4000;
++ res->limit = 0xFFFFFFFFUL; /* res->base + res->size -1; */
++ res->align = 14; /* 16k alignment */
++ res->gran = 14;
++ res->flags = IORESOURCE_MEM | IORESOURCE_RESERVE;
++ }
++
++ compact_resources(dev);
++}
++
++void sr5650_iommu_set_resources(device_t dev)
++{
++ unsigned char iommu;
++ struct resource *res;
++
++ iommu = 1;
++ get_option(&iommu, "iommu");
++
++ /* Get the normal pci resources of this device */
++ pci_dev_read_resources(dev);
++
++ if (iommu) {
++ /* Get the allocated range */
++ res = find_resource(dev, 0x44);
++
++ if (res->base == 0) {
++ printk(BIOS_WARNING, "Unable to allocate MMIO range to IOMMU\n");
++ }
++
++ /* Assign the range to hardware */
++ pci_write_config32(dev, 0x44, res->base & 0xffffc000);
++ pci_write_config32(dev, 0x48, 0x0);
++ }
++
++ /* Run standard resource set routine */
++ pci_dev_set_resources(dev);
++}
++
++void sr5650_iommu_enable_resources(device_t dev)
++{
++ detect_and_enable_iommu(dev);
++}
++
+ void sr5650_nb_pci_table(device_t nb_dev)
+ { /* NBPOR_InitPOR function. */
+ u8 temp8;
+@@ -365,13 +621,23 @@ void sr5650_enable(device_t dev)
+ dev_ind = dev->path.pci.devfn >> 3;
+ switch (dev_ind) {
+ case 0: /* bus0, dev0, fun0; */
+- printk(BIOS_INFO, "Bus-0, Dev-0, Fun-0.\n");
+- enable_pcie_bar3(nb_dev); /* PCIEMiscInit */
+-
+- config_gpp_core(nb_dev, sb_dev);
+- sr5650_gpp_sb_init(nb_dev, sb_dev, 8);
+-
+- sr5650_nb_pci_table(nb_dev);
++ switch (dev->path.pci.devfn & 0x7) {
++ case 0:
++ printk(BIOS_INFO, "Bus-0, Dev-0, Fun-0.\n");
++ enable_pcie_bar3(nb_dev); /* PCIEMiscInit */
++
++ config_gpp_core(nb_dev, sb_dev);
++ sr5650_gpp_sb_init(nb_dev, sb_dev, 8);
++
++ sr5650_nb_pci_table(nb_dev);
++ break;
++ case 1:
++ printk(BIOS_INFO, "Bus-0, Dev-0, Fun-1.\n");
++ break;
++ case 2:
++ printk(BIOS_INFO, "Bus-0, Dev-0, Fun-2.\n");
++ break;
++ }
+ break;
+
+ case 2: /* bus0, dev2,3 GPP1 */
+@@ -438,6 +704,205 @@ void sr5650_enable(device_t dev)
+ }
+ }
+
++static void add_ivrs_device_entries(struct device *parent, struct device *dev, int depth, int linknum, int8_t *root_level, unsigned long *current, uint16_t *length)
++{
++ uint8_t *p;
++ struct device *sibling;
++ struct bus *link;
++
++ if (!root_level) {
++ root_level = malloc(sizeof(int8_t));
++ *root_level = -1;
++ }
++
++ if (dev->path.type == DEVICE_PATH_PCI) {
++ if ((dev->bus->secondary == 0x0) && (dev->path.pci.devfn == 0x0))
++ *root_level = depth;
++
++ if (*root_level != -1) {
++ if (depth >= *root_level) {
++ if (dev->enabled) {
++ if (depth == *root_level) {
++ if (dev->path.pci.devfn < (0x1 << 3)) {
++ /* SR5690 control device */
++ } else if ((dev->path.pci.devfn >= (0x1 << 3)) && (dev->path.pci.devfn < (0xe << 3))) {
++ /* SR5690 PCIe bridge device */
++ } else {
++ if (dev->path.pci.devfn == (0x14 << 3)) {
++ /* SMBUS controller */
++ p = (uint8_t *) *current;
++ p[0] = 0x2; /* Entry type */
++ p[1] = dev->path.pci.devfn; /* Device */
++ p[2] = dev->bus->secondary; /* Bus */
++ p[3] = 0x97; /* Data */
++ p[4] = 0x0; /* Padding */
++ p[5] = 0x0; /* Padding */
++ p[6] = 0x0; /* Padding */
++ p[7] = 0x0; /* Padding */
++ *length += 8;
++ *current += 8;
++ } else {
++ /* Other southbridge device */
++ p = (uint8_t *) *current;
++ p[0] = 0x2; /* Entry type */
++ p[1] = dev->path.pci.devfn; /* Device */
++ p[2] = dev->bus->secondary; /* Bus */
++ p[3] = 0x0; /* Data */
++ p[4] = 0x0; /* Padding */
++ p[5] = 0x0; /* Padding */
++ p[6] = 0x0; /* Padding */
++ p[7] = 0x0; /* Padding */
++ *length += 8;
++ *current += 8;
++ }
++ }
++ } else {
++ if ((dev->hdr_type & 0x7f) == PCI_HEADER_TYPE_NORMAL) {
++ /* Device behind bridge */
++ if (pci_find_capability(dev, PCI_CAP_ID_PCIE)) {
++ /* Device is PCIe */
++ p = (uint8_t *) *current;
++ p[0] = 0x2; /* Entry type */
++ p[1] = dev->path.pci.devfn; /* Device */
++ p[2] = dev->bus->secondary; /* Bus */
++ p[3] = 0x0; /* Data */
++ p[4] = 0x0; /* Padding */
++ p[5] = 0x0; /* Padding */
++ p[6] = 0x0; /* Padding */
++ p[7] = 0x0; /* Padding */
++ *length += 8;
++ *current += 8;
++ } else {
++ /* Device is legacy PCI or PCI-X */
++ p = (uint8_t *) *current;
++ p[0] = 0x42; /* Entry type */
++ p[1] = dev->path.pci.devfn; /* Device */
++ p[2] = dev->bus->secondary; /* Bus */
++ p[3] = 0x0; /* Data */
++ p[4] = 0x0; /* Reserved */
++ p[5] = parent->path.pci.devfn; /* Device */
++ p[6] = parent->bus->secondary; /* Bus */
++ p[7] = 0x0; /* Reserved */
++ *length += 8;
++ *current += 8;
++ }
++ }
++ }
++ }
++ }
++ }
++ }
++
++ for (link = dev->link_list; link; link = link->next)
++ for (sibling = link->children; sibling; sibling = sibling->sibling)
++ add_ivrs_device_entries(dev, sibling, depth + 1, depth, root_level, current, length);
++
++ free(root_level);
++}
++
++static unsigned long acpi_fill_ivrs(acpi_ivrs_t* ivrs, unsigned long current)
++{
++ uint8_t *p;
++
++ device_t nb_dev = dev_find_slot(0, PCI_DEVFN(0, 0));
++ if (!nb_dev) {
++ printk(BIOS_WARNING, "acpi_fill_ivrs: Unable to locate SR5650 device! IVRS table not generated...\n");
++ return (unsigned long)ivrs;
++ }
++
++ device_t iommu_dev = dev_find_slot(0, PCI_DEVFN(0, 2));
++ if (!iommu_dev) {
++ printk(BIOS_WARNING, "acpi_fill_ivrs: Unable to locate SR5650 IOMMU device! IVRS table not generated...\n");
++ return (unsigned long)ivrs;
++ }
++
++ ivrs->iv_info = 0x0;
++ ivrs->iv_info |= (0x40 << 15); /* Maximum supported virtual address size */
++ ivrs->iv_info |= (0x34 << 8); /* Maximum supported physical address size */
++
++ ivrs->ivhd.type = 0x10;
++ ivrs->ivhd.flags = 0x0e;
++ // if (get_nb_rev(nb_dev) != REV_SR5650_A11) {
++ ivrs->ivhd.flags |= 0x10; /* Enable ATS support on all revisions except A11 */
++ // }
++ ivrs->ivhd.length = sizeof(struct acpi_ivrs_ivhd);
++ ivrs->ivhd.device_id = 0x2 | (nb_dev->bus->secondary << 8); /* BDF <bus>:00.2 */
++ ivrs->ivhd.capability_offset = 0x40; /* Capability block 0x40 (type 0xf, "Secure device") */
++ ivrs->ivhd.iommu_base_low = pci_read_config32(iommu_dev, 0x44) & 0xffffc000;
++ ivrs->ivhd.iommu_base_high = pci_read_config32(iommu_dev, 0x48);
++ ivrs->ivhd.pci_segment_group = 0x0;
++ ivrs->ivhd.iommu_info = 0x0;
++ ivrs->ivhd.iommu_info |= (0x14 << 8);
++ ivrs->ivhd.efr = 0x0;
++
++ /* Describe HPET */
++ p = (uint8_t *)current;
++ p[0] = 0x48; /* Entry type */
++ p[1] = 0; /* Device */
++ p[2] = 0; /* Bus */
++ p[3] = 0xd7; /* Data */
++ p[4] = 0x0; /* HPET number */
++ p[5] = 0x14 << 3; /* HPET device */
++ p[6] = nb_dev->bus->secondary; /* HPET bus */
++ p[7] = 0x2; /* Variety */
++ ivrs->ivhd.length += 8;
++ current += 8;
++
++ /* Describe PCI devices */
++ add_ivrs_device_entries(NULL, all_devices, 0, -1, NULL, &current, &ivrs->ivhd.length);
++
++ /* Describe IOAPICs */
++ unsigned long prev_current = current;
++ current = acpi_fill_ivrs_ioapic(ivrs, current);
++ ivrs->ivhd.length += (current - prev_current);
++
++ return current;
++}
++
++unsigned long southbridge_write_acpi_tables(device_t device,
++ unsigned long current,
++ struct acpi_rsdp *rsdp)
++{
++ unsigned char iommu;
++
++ iommu = 1;
++ get_option(&iommu, "iommu");
++
++ if (iommu) {
++ acpi_ivrs_t *ivrs;
++
++ /* IVRS */
++ current = ALIGN(current, 8);
++ printk(BIOS_DEBUG, "ACPI: * IVRS at %lx\n", current);
++ ivrs = (acpi_ivrs_t *) current;
++ acpi_create_ivrs(ivrs, acpi_fill_ivrs);
++ current += ivrs->header.length;
++ acpi_add_table(rsdp, ivrs);
++ }
++
++ return current;
++}
++
++static struct pci_operations iommu_ops_pci = {
++ .set_subsystem = pci_dev_set_subsystem,
++};
++
++static struct device_operations iommu_ops = {
++ .read_resources = sr5650_iommu_read_resources,
++ .set_resources = sr5650_iommu_set_resources,
++ .enable_resources = sr5650_iommu_enable_resources,
++ .write_acpi_tables = southbridge_write_acpi_tables,
++ .init = 0,
++ .scan_bus = 0,
++ .ops_pci = &iommu_ops_pci,
++};
++
++static const struct pci_driver ht_driver_sr5690 __pci_driver = {
++ .ops = &iommu_ops,
++ .vendor = PCI_VENDOR_ID_ATI,
++ .device = PCI_DEVICE_ID_AMD_SR5650_IOMMU,
++};
++
+ struct chip_operations southbridge_amd_sr5650_ops = {
+ CHIP_NAME("ATI SR5650")
+ .enable_dev = sr5650_enable,
+diff --git a/src/southbridge/amd/sr5650/sr5650.h b/src/southbridge/amd/sr5650/sr5650.h
+index ebbde41..a3518fb 100644
+--- a/src/southbridge/amd/sr5650/sr5650.h
++++ b/src/southbridge/amd/sr5650/sr5650.h
+@@ -2,6 +2,7 @@
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2010 Advanced Micro Devices, Inc.
++ * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
+ *
+ * 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
+@@ -21,6 +22,7 @@
+ #define __SR5650_H__
+
+ #include <stdint.h>
++#include <arch/acpi.h>
+ #include <device/pci_ids.h>
+ #include "chip.h"
+ #include "rev.h"
+@@ -95,16 +97,24 @@ u32 nbpcie_p_read_index(device_t dev, u32 index);
+ void nbpcie_p_write_index(device_t dev, u32 index, u32 data);
+ u32 nbpcie_ind_read_index(device_t nb_dev, u32 index);
+ void nbpcie_ind_write_index(device_t nb_dev, u32 index, u32 data);
++uint32_t l2cfg_ind_read_index(device_t nb_dev, uint32_t index);
++void l2cfg_ind_write_index(device_t nb_dev, uint32_t index, uint32_t data);
++uint32_t l1cfg_ind_read_index(device_t nb_dev, uint32_t index);
++void l1cfg_ind_write_index(device_t nb_dev, uint32_t index, uint32_t data);
+ u32 pci_ext_read_config32(device_t nb_dev, device_t dev, u32 reg);
+ void pci_ext_write_config32(device_t nb_dev, device_t dev, u32 reg, u32 mask, u32 val);
+ void sr5650_set_tom(device_t nb_dev);
+
++unsigned long southbridge_write_acpi_tables(device_t device, unsigned long current,
++ struct acpi_rsdp *rsdp);
++
+ void ProgK8TempMmioBase(u8 in_out, u32 pcie_base_add, u32 mmio_base_add);
+ void enable_pcie_bar3(device_t nb_dev);
+ void disable_pcie_bar3(device_t nb_dev);
+
+ void enable_sr5650_dev8(void);
+ void sr5650_htinit(void);
++void sr5650_htinit_dect_and_enable_isochronous_link(void);
+ void sr5650_early_setup(void);
+ void sr5650_before_pci_init(void);
+ void sr5650_enable(device_t dev);
+@@ -118,6 +128,10 @@ void pcie_config_misc_clk(device_t nb_dev);
+ void fam10_optimization(void);
+ void sr5650_disable_pcie_bridge(void);
+ u32 get_vid_did(device_t dev);
++void detect_and_enable_iommu(device_t iommu_dev);
++void sr5650_iommu_read_resources(device_t dev);
++void sr5650_iommu_set_resources(device_t dev);
++void sr5650_iommu_enable_resources(device_t dev);
+ void sr5650_nb_pci_table(device_t nb_dev);
+ void init_gen2(device_t nb_dev, device_t dev, u8 port);
+ void sr56x0_lock_hwinitreg(void);
+--
+1.9.1
+
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-11-01 12:32:45 +0000