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release_2.2
acrn-hypervisor/devicemodel/hw/pci/passthrough.c
Long Liu 4b03f3002e DM: PT: Add "d3hot_reset" sub-parameter for passthrough device 
Some passthrough devices have no reset mechanisms which cause the device stay
in unknown status during boot/reboot flow. And such unknown status cause
unexpected behaviors in the guest. Except the ordinary reset mechanisms
like FLR, we can utilize enter/exit D3cold as the reset that D3cold will
power gate the entire hardware. But the D3cold is implemented as ACPI
method which has no user interface in the SOS side. But the D3cold is
implemented as ACPI method which has no user interface in the SOS side.
But base on our experience, some devices can utilize D3hot instead of
D3cold. But it is not useful for all PCI devices as the power status
of D3hot is implementation defined.
Provide one new API to program PowerState(D0/D1/D2/D3hot) in PMCSR
register.
Add "d3hot_reset" sub-parameter for passthrough device to enable utilize
enter/exit D3hot flow to implement reset mechanisms.

Tracked-On: #5067

Signed-off-by: Long Liu <long.liu@intel.com>
Reviewed-by: Yuan Liu <yuan1.liu@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2020-07-23 10:10:27 +08:00

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/*-
* Copyright (c) 2011 NetApp, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/mman.h>
#include <sys/ioctl.h>
#include <sys/user.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include <err.h>
#include <errno.h>
#include <pthread.h>
#include <pciaccess.h>
#include <fcntl.h>
#include <unistd.h>
#include "iodev.h"
#include "vmmapi.h"
#include "pciio.h"
#include "pci_core.h"
#include "acpi.h"
#include "dm.h"
/* Some audio drivers get topology data from ACPI NHLT table.
* For such drivers, we need to copy the host NHLT table to make it
* available to the Guest OS. Most audio drivers don't need this by
* default, when that's the case setting this macro to 0 will avoid
* unexpected failures.
* The cAVS audio needs this however, so we enable this feature.
*/
#define AUDIO_NHLT_HACK 1
#define PCI_BDF_GPU 0x00000010 /* 00:02.0 */
/* Reserved [0x DF000000, 0x E0000000] 16M in e820 table for GVT
* [0xDB000000, 0xDF000000) 64M, DSM, used by native GOP and gfx driver
* for GVT-g use:
* [0xDF000000, 0xDF800000) 8M, GOP FB, used OvmfPkg/GvtGopDxe for 1080p@30
* [0xDFFFD000, 0xDFFFF000) 8K, OpRegion, used by GvtGopDxe and GVT-g
* [0xDFFFF000, 0XE0000000) 4K, Reserved, not used
* for GVT-d use:
* [0xDFFFC000, 0xDFFFE000) 8K, OpRegion, used by native GOP and gfx driver
* [0xDFFFE000, 0XE0000000] 8K, Extended OpRegion, store raw VBT
*
* OpRegion: 8KB(0x2000)
* [ OpRegion Header ] Offset: 0x0
* [ Mailbox #1: ACPI ] Offset: 0x100
* [ Mailbox #2: SWSCI ] Offset: 0x200
* [ Mailbox #3: ASLE ] Offset: 0x300
* [ Mailbox #4: VBT ] Offset: 0x400
* [ Mailbox #5: ASLE EXT ] Offset: 0x1C00
* Extended OpRegion: 8KB(0x2000)
* [ Raw VBT ] Offset: 0x0
* If VBT <= 6KB, stores in Mailbox #4
* If VBT > 6KB, stores in Extended OpRegion
* ASLE.rvda stores the location of VBT.
* For OpRegion 2.1+: ASLE.rvda = offset to OpRegion base address
* For OpRegion 2.0: ASLE.rvda = physical address, not support currently
*/
#define GPU_DSM_GPA 0xDB000000
#define GPU_DSM_SIZE 0x4000000
#define GPU_OPREGION_GPA 0xDFFFC000
#define GPU_OPREGION_SIZE 0x4000
extern uint64_t audio_nhlt_len;
/* reference count for libpciaccess init/deinit */
static int pciaccess_ref_cnt;
static pthread_mutex_t ref_cnt_mtx = PTHREAD_MUTEX_INITIALIZER;
uint32_t dsm_start_hpa = 0;
uint32_t opregion_start_hpa = 0;
struct passthru_dev {
struct pci_vdev *dev;
struct pcibar bar[PCI_BARMAX + 1];
struct {
int capoff;
} msi;
struct {
int capoff;
} msix;
struct {
int capoff;
} pmcap;
bool pcie_cap;
struct pcisel sel;
int phys_pin;
uint16_t phys_bdf;
struct pci_device *phys_dev;
/* Options for passthrough device:
* need_reset - reset dev before passthrough
*/
bool need_reset;
bool d3hot_reset;
bool (*has_virt_pcicfg_regs)(int offset);
};
static uint32_t
read_config(struct pci_device *phys_dev, long reg, int width)
{
uint32_t temp = 0;
switch (width) {
case 1:
pci_device_cfg_read_u8(phys_dev, (uint8_t *)&temp, reg);
break;
case 2:
pci_device_cfg_read_u16(phys_dev, (uint16_t *)&temp, reg);
break;
case 4:
pci_device_cfg_read_u32(phys_dev, &temp, reg);
break;
default:
warnx("%s: invalid reg width", __func__);
return -1;
}
return temp;
}
static int
write_config(struct pci_device *phys_dev, long reg, int width, uint32_t data)
{
int temp = -1;
switch (width) {
case 1:
temp = pci_device_cfg_write_u8(phys_dev, data, reg);
break;
case 2:
temp = pci_device_cfg_write_u16(phys_dev, data, reg);
break;
case 4:
temp = pci_device_cfg_write_u32(phys_dev, data, reg);
break;
default:
warnx("%s: invalid reg width", __func__);
}
return temp;
}
static int
cfginit_cap(struct vmctx *ctx, struct passthru_dev *ptdev)
{
int ptr, cap, sts;
struct pci_device *phys_dev = ptdev->phys_dev;
/*
* Parse the capabilities and cache the location of the MSI
* and MSI-X capabilities.
*/
sts = read_config(phys_dev, PCIR_STATUS, 2);
if (sts & PCIM_STATUS_CAPPRESENT) {
ptr = read_config(phys_dev, PCIR_CAP_PTR, 1);
while (ptr != 0 && ptr != 0xff) {
cap = read_config(phys_dev, ptr + PCICAP_ID, 1);
if (cap == PCIY_MSI) {
ptdev->msi.capoff = ptr;
} else if (cap == PCIY_MSIX) {
ptdev->msix.capoff = ptr;
} else if (cap == PCIY_EXPRESS) {
ptdev->pcie_cap = true;
} else if (cap == PCIY_PMG)
ptdev->pmcap.capoff = ptr;
ptr = read_config(phys_dev, ptr + PCICAP_NEXTPTR, 1);
}
}
return 0;
}
static int
passthru_set_power_state(struct passthru_dev *ptdev, uint16_t dpsts) {
int ret = -1;
uint32_t val;
dpsts &= PCIM_PSTAT_DMASK;
if (ptdev->pmcap.capoff != 0) {
val = read_config(ptdev->phys_dev,
ptdev->pmcap.capoff + PCIR_POWER_STATUS, 2);
val = (val & ~PCIM_PSTAT_DMASK) | dpsts;
write_config(ptdev->phys_dev,
ptdev->pmcap.capoff + PCIR_POWER_STATUS, 2, val);
ret = 0;
}
return ret;
}
static inline int ptdev_msix_table_bar(struct passthru_dev *ptdev)
{
return ptdev->dev->msix.table_bar;
}
static inline int ptdev_msix_pba_bar(struct passthru_dev *ptdev)
{
return ptdev->dev->msix.pba_bar;
}
static int
cfginitbar(struct vmctx *ctx, struct passthru_dev *ptdev)
{
int i, error;
struct pci_vdev *dev;
struct pci_bar_io bar;
enum pcibar_type bartype;
uint64_t base, size;
uint32_t vbar_lo32;
dev = ptdev->dev;
/*
* Initialize BAR registers
*/
for (i = 0; i <= PCI_BARMAX; i++) {
bzero(&bar, sizeof(bar));
bar.sel = ptdev->sel;
bar.reg = PCIR_BAR(i);
bar.base = read_config(ptdev->phys_dev, bar.reg, 4);
bar.length = ptdev->phys_dev->regions[i].size;
if (PCI_BAR_IO(bar.base)) {
bartype = PCIBAR_IO;
base = bar.base & PCIM_BAR_IO_BASE;
} else {
switch (bar.base & PCIM_BAR_MEM_TYPE) {
case PCIM_BAR_MEM_64:
bartype = PCIBAR_MEM64;
break;
default:
bartype = PCIBAR_MEM32;
break;
}
base = bar.base & PCIM_BAR_MEM_BASE;
}
size = bar.length;
if (bartype != PCIBAR_IO) {
/* note here PAGE_MASK is 0xFFFFF000 */
if ((base & ~PAGE_MASK) != 0) {
warnx("passthru device %x/%x/%x BAR %d: "
"base %#lx not page aligned\n",
ptdev->sel.bus, ptdev->sel.dev,
ptdev->sel.func, i, base);
return -1;
}
/* roundup to PAGE_SIZE for bar size */
if ((size & ~PAGE_MASK) != 0) {
warnx("passthru device %x/%x/%x BAR %d: "
"size[%lx] is expanded to page aligned [%lx]\n",
ptdev->sel.bus, ptdev->sel.dev,
ptdev->sel.func, i, size, roundup2(size, PAGE_SIZE));
size = roundup2(size, PAGE_SIZE);
}
}
/* Cache information about the "real" BAR */
ptdev->bar[i].type = bartype;
ptdev->bar[i].size = size;
ptdev->bar[i].addr = base;
if (size == 0)
continue;
/* Allocate the BAR in the guest I/O or MMIO space */
error = pci_emul_alloc_pbar(dev, i, base, bartype, size);
if (error)
return -1;
/*
* For pass-thru devices,
* set the bar prefetchable property the same as physical bar.
*
* the pci bar prefetchable property has set by pci_emul_alloc_pbar,
* here, override the prefetchable property according to the physical bar.
*/
if (bartype == PCIBAR_MEM32 || bartype == PCIBAR_MEM64) {
vbar_lo32 = pci_get_cfgdata32(dev, PCIR_BAR(i));
if (bar.base & PCIM_BAR_MEM_PREFETCH)
vbar_lo32 |= PCIM_BAR_MEM_PREFETCH;
else
vbar_lo32 &= ~PCIM_BAR_MEM_PREFETCH;
pci_set_cfgdata32(dev, PCIR_BAR(i), vbar_lo32);
}
/*
* 64-bit BAR takes up two slots so skip the next one.
*/
if (bartype == PCIBAR_MEM64) {
i++;
if (i > PCI_BARMAX) {
warnx("BAR count out of range\n");
return -1;
}
ptdev->bar[i].type = PCIBAR_MEMHI64;
}
}
return 0;
}
/*
* return value:
* -1 : fail
* >=0: succeed
* IRQ_INTX(0): phy dev has no MSI support
* IRQ_MSI(1): phy dev has MSI support
*/
static int
cfginit(struct vmctx *ctx, struct passthru_dev *ptdev, int bus,
int slot, int func)
{
int irq_type = IRQ_MSI;
char reset_path[60];
int fd;
bzero(&ptdev->sel, sizeof(struct pcisel));
ptdev->sel.bus = bus;
ptdev->sel.dev = slot;
ptdev->sel.func = func;
if (cfginit_cap(ctx, ptdev) != 0) {
warnx("Capability check fails for PCI %x/%x/%x",
bus, slot, func);
return -1;
}
/* Check MSI or MSIX capabilities */
if (ptdev->msi.capoff == 0 && ptdev->msix.capoff == 0) {
warnx("MSI not supported for PCI %x/%x/%x",
bus, slot, func);
irq_type = IRQ_INTX;
}
/* If SOS kernel provides 'reset' entry in sysfs, related dev has some
* reset capability, e.g. FLR, or secondary bus reset. We do 2 things:
* - reset each dev before passthrough to achieve valid dev state after
* UOS reboot
* - refuse to passthrough PCIe dev without any reset capability
*/
if (ptdev->need_reset) {
snprintf(reset_path, 40,
"/sys/bus/pci/devices/0000:%02x:%02x.%x/reset",
bus, slot, func);
fd = open(reset_path, O_WRONLY);
if (fd >= 0) {
if (write(fd, "1", 1) < 0)
warnx("reset dev %x/%x/%x failed!\n",
bus, slot, func);
close(fd);
}
}
if (ptdev->d3hot_reset) {
if ((passthru_set_power_state(ptdev, PCIM_PSTAT_D3) != 0) ||
passthru_set_power_state(ptdev, PCIM_PSTAT_D0) != 0)
warnx("ptdev %x/%x/%x do d3hot_reset failed!\n", bus, slot, func);
}
if (cfginitbar(ctx, ptdev) != 0) {
warnx("failed to initialize BARs for PCI %x/%x/%x",
bus, slot, func);
return -1;
} else
return irq_type;
}
/*
* convert the error code of pci_system_init in libpciaccess to DM standard
*
* pci_system_init in libpciaccess:
* return zero -> success
* return positive value -> failure
*
* DM standard:
* return zero -> success
* return negative value -> failure
*/
static int
native_pci_system_init()
{
int error;
error = pci_system_init();
/*
* convert the returned error value to negative since DM only handles
* the negative error code
*/
return -error;
}
/*
* return zero on success or non-zero on failure
*/
int
pciaccess_init(void)
{
int error;
pthread_mutex_lock(&ref_cnt_mtx);
if (!pciaccess_ref_cnt) {
error = native_pci_system_init();
if (error < 0) {
warnx("libpciaccess couldn't access PCI system");
pthread_mutex_unlock(&ref_cnt_mtx);
return error;
}
}
pciaccess_ref_cnt++;
pthread_mutex_unlock(&ref_cnt_mtx);
return 0; /* success */
}
static bool
has_virt_pcicfg_regs_on_ehl_gpu(int offset)
{
return ((offset == PCIR_GEN11_BDSM_DW0) || (offset == PCIR_GEN11_BDSM_DW1) ||
(offset == PCIR_ASLS_CTL));
}
static bool
has_virt_pcicfg_regs_on_def_gpu(int offset)
{
return ((offset == PCIR_BDSM) || (offset == PCIR_ASLS_CTL));
}
/*
* passthrough GPU DSM(Data Stolen Memory) and Opregion to guest
*/
void
passthru_gpu_dsm_opregion(struct vmctx *ctx, struct passthru_dev *ptdev,
struct acrn_assign_pcidev *pcidev, uint16_t device)
{
uint32_t opregion_phys, dsm_mask_val;
switch (device) {
case INTEL_ELKHARTLAKE:
case INTEL_TIGERLAKE:
/* BDSM register has 64 bits.
* bits 63:20 contains the base address of stolen memory
*/
dsm_start_hpa = read_config(ptdev->phys_dev, PCIR_GEN11_BDSM_DW0, 4);
dsm_mask_val = dsm_start_hpa & ~PCIM_BDSM_MASK;
dsm_start_hpa &= PCIM_BDSM_MASK;
dsm_start_hpa |= (uint64_t)read_config(ptdev->phys_dev, PCIR_GEN11_BDSM_DW1, 4) << 32;
pci_set_cfgdata32(ptdev->dev, PCIR_GEN11_BDSM_DW0, GPU_DSM_GPA | dsm_mask_val);
/* write 0 to high 32-bits of BDSM on EHL platform */
pci_set_cfgdata32(ptdev->dev, PCIR_GEN11_BDSM_DW1, 0);
ptdev->has_virt_pcicfg_regs = &has_virt_pcicfg_regs_on_ehl_gpu;
break;
/* If on default platforms, such as KBL,WHL */
default:
/* bits 31:20 contains the base address of stolen memory */
dsm_start_hpa = read_config(ptdev->phys_dev, PCIR_BDSM, 4);
dsm_mask_val = dsm_start_hpa & ~PCIM_BDSM_MASK;
dsm_start_hpa &= PCIM_BDSM_MASK;
pci_set_cfgdata32(ptdev->dev, PCIR_BDSM, GPU_DSM_GPA | dsm_mask_val);
ptdev->has_virt_pcicfg_regs = &has_virt_pcicfg_regs_on_def_gpu;
break;
}
/* initialize the EPT mapping for passthrough GPU dsm region */
vm_map_ptdev_mmio(ctx, 0, 2, 0, GPU_DSM_GPA, GPU_DSM_SIZE, dsm_start_hpa);
/* get opregion hpa */
opregion_phys = read_config(ptdev->phys_dev, PCIR_ASLS_CTL, 4);
opregion_start_hpa = opregion_phys & PCIM_ASLS_OPREGION_MASK;
/* initialize the EPT mapping for passthrough GPU opregion */
vm_map_ptdev_mmio(ctx, 0, 2, 0, GPU_OPREGION_GPA, GPU_OPREGION_SIZE, opregion_start_hpa);
pci_set_cfgdata32(ptdev->dev, PCIR_ASLS_CTL, GPU_OPREGION_GPA | (opregion_phys & ~PCIM_ASLS_OPREGION_MASK));
pcidev->type = QUIRK_PTDEV;
}
static int
parse_vmsix_on_msi_bar_id(char *s, int *id, int base)
{
char *str, *cp;
int ret = 0;
if (s == NULL)
return -EINVAL;
str = cp = strdup(s);
ret = dm_strtoi(cp, &cp, base, id);
free(str);
return ret;
}
/*
* Passthrough device initialization function:
* - initialize virtual config space
* - read physical info via libpciaccess
* - issue related hypercall for passthrough
* - Do some specific actions:
* - enable NHLT for audio pt dev
* - emulate INTPIN/INTLINE
* - hide INTx link if ptdev support both MSI and INTx to force guest using
* MSI, so that mitigate ptdev GSI sharing issue.
*/
static int
passthru_init(struct vmctx *ctx, struct pci_vdev *dev, char *opts)
{
int bus, slot, func, idx, error;
struct passthru_dev *ptdev;
struct pci_device_iterator *iter;
struct pci_device *phys_dev;
char *opt;
bool keep_gsi = false;
bool need_reset = true;
bool d3hot_reset = false;
int vmsix_on_msi_bar_id = -1;
struct acrn_assign_pcidev pcidev = {};
uint16_t vendor = 0, device = 0;
ptdev = NULL;
error = -EINVAL;
if (opts == NULL) {
warnx("Empty passthru options\n");
return -EINVAL;
}
opt = strsep(&opts, ",");
if (parse_bdf(opt, &bus, &slot, &func, 16) != 0) {
warnx("Invalid passthru BDF options:%s", opt);
return -EINVAL;
}
if (is_rtvm && (PCI_BDF(bus, slot, func) == PCI_BDF_GPU)) {
warnx("%s RTVM doesn't support GVT-D.", __func__);
return -EINVAL;
}
while ((opt = strsep(&opts, ",")) != NULL) {
if (!strncmp(opt, "keep_gsi", 8))
keep_gsi = true;
else if (!strncmp(opt, "no_reset", 8))
need_reset = false;
else if (!strncmp(opt, "d3hot_reset", 11))
d3hot_reset = true;
else if (!strncmp(opt, "gpu", 3)) {
/* Create the dedicated "igd-lpc" on 00:1f.0 for IGD passthrough */
if (pci_parse_slot("31,igd-lpc") != 0)
warnx("faild to create igd-lpc");
} else if (!strncmp(opt, "vmsix_on_msi", 12)) {
opt = strsep(&opts, ",");
if (parse_vmsix_on_msi_bar_id(opt, &vmsix_on_msi_bar_id, 10) != 0) {
warnx("faild to parse msix emulation bar id");
return -EINVAL;
}
} else
warnx("Invalid passthru options:%s", opt);
}
ptdev = calloc(1, sizeof(struct passthru_dev));
if (ptdev == NULL) {
warnx("%s: calloc FAIL!", __func__);
error = -ENOMEM;
goto done;
}
ptdev->phys_bdf = PCI_BDF(bus, slot, func);
ptdev->need_reset = need_reset;
ptdev->d3hot_reset = d3hot_reset;
update_pt_info(ptdev->phys_bdf);
error = pciaccess_init();
if (error < 0)
goto done;
error = -ENODEV;
iter = pci_slot_match_iterator_create(NULL);
while ((phys_dev = pci_device_next(iter)) != NULL) {
if (phys_dev->bus == bus && phys_dev->dev == slot &&
phys_dev->func == func) {
ptdev->phys_dev = phys_dev;
error = 0;
break;
}
}
pci_iterator_destroy(iter);
if (error < 0) {
warnx("No physical PCI device %x:%x.%x!", bus, slot, func);
goto done;
}
pci_device_probe(ptdev->phys_dev);
dev->arg = ptdev;
ptdev->dev = dev;
/* handle 0x3c~0x3f config space
* INTLINE/INTPIN: from emulated configuration space
* MINGNT/MAXLAT: from physical configuration space
*/
pci_set_cfgdata16(dev, PCIR_MINGNT,
read_config(ptdev->phys_dev, PCIR_MINGNT, 2));
/* Once this device is assigned to other guest, the original guest can't access it again
* So we need to cache verdor and device for filling DSDT.
*/
vendor = read_config(ptdev->phys_dev, PCIR_VENDOR, 2);
device = read_config(ptdev->phys_dev, PCIR_DEVICE, 2);
pci_set_cfgdata16(dev, PCIR_VENDOR, vendor);
pci_set_cfgdata16(dev, PCIR_DEVICE, device);
#if AUDIO_NHLT_HACK
/* device specific handling:
* audio: enable NHLT ACPI table
*/
if (vendor == 0x8086 && device == 0x5a98)
acpi_table_enable(NHLT_ENTRY_NO);
#endif
/* initialize config space */
error = cfginit(ctx, ptdev, bus, slot, func);
if (error < 0)
goto done;
if (vmsix_on_msi_bar_id != -1) {
error = pci_emul_alloc_pbar(dev, vmsix_on_msi_bar_id, 0, PCIBAR_MEM32, 4096);
if (error < 0)
goto done;
error = IRQ_MSI;
}
if (ptdev->phys_bdf == PCI_BDF_GPU)
passthru_gpu_dsm_opregion(ctx, ptdev, &pcidev, device);
pcidev.virt_bdf = PCI_BDF(dev->bus, dev->slot, dev->func);
pcidev.phys_bdf = ptdev->phys_bdf;
for (idx = 0; idx <= PCI_BARMAX; idx++) {
pcidev.bar[idx] = pci_get_cfgdata32(dev, PCIR_BAR(idx));
}
/* If ptdev support MSI/MSIX, stop here to skip virtual INTx setup.
* Forge Guest to use MSI/MSIX in this case to mitigate IRQ sharing
* issue
*/
if (error != IRQ_MSI || keep_gsi) {
/* Allocates the virq if ptdev only support INTx */
pci_lintr_request(dev);
ptdev->phys_pin = read_config(ptdev->phys_dev, PCIR_INTLINE, 1);
if (ptdev->phys_pin == -1 || ptdev->phys_pin > 256) {
warnx("ptdev %x/%x/%x has wrong phys_pin %d, likely fail!",
bus, slot, func, ptdev->phys_pin);
error = -1;
goto done;
}
}
pcidev.intr_line = pci_get_cfgdata8(dev, PCIR_INTLINE);
pcidev.intr_pin = pci_get_cfgdata8(dev, PCIR_INTPIN);
error = vm_assign_pcidev(ctx, &pcidev);
done:
if (error && (ptdev != NULL)) {
free(ptdev);
}
return error;
}
void
pciaccess_cleanup(void)
{
pthread_mutex_lock(&ref_cnt_mtx);
pciaccess_ref_cnt--;
if (!pciaccess_ref_cnt)
pci_system_cleanup();
pthread_mutex_unlock(&ref_cnt_mtx);
}
static void
passthru_deinit(struct vmctx *ctx, struct pci_vdev *dev, char *opts)
{
struct passthru_dev *ptdev;
uint16_t virt_bdf = PCI_BDF(dev->bus, dev->slot, dev->func);
struct acrn_assign_pcidev pcidev = {};
uint16_t phys_bdf = 0;
char reset_path[60];
int fd;
if (!dev->arg) {
warnx("%s: passthru_dev is NULL", __func__);
return;
}
ptdev = (struct passthru_dev *) dev->arg;
pr_info("vm_reset_ptdev_intx:0x%x-%x, ioapic virpin=%d.\n",
virt_bdf, ptdev->phys_bdf, dev->lintr.ioapic_irq);
if (dev->lintr.pin != 0) {
vm_reset_ptdev_intx_info(ctx, virt_bdf, ptdev->phys_bdf, dev->lintr.ioapic_irq, false);
}
if (ptdev)
phys_bdf = ptdev->phys_bdf;
if (ptdev->phys_bdf == PCI_BDF_GPU) {
vm_unmap_ptdev_mmio(ctx, 0, 2, 0, GPU_DSM_GPA, GPU_DSM_SIZE, dsm_start_hpa);
vm_unmap_ptdev_mmio(ctx, 0, 2, 0, GPU_OPREGION_GPA, GPU_OPREGION_SIZE, opregion_start_hpa);
}
pcidev.virt_bdf = PCI_BDF(dev->bus, dev->slot, dev->func);
pcidev.phys_bdf = ptdev->phys_bdf;
pciaccess_cleanup();
free(ptdev);
if (!is_rtvm) {
/* Let the HV to deassign the pt device for RTVM, In this case, the RTVM
* could still be alive if DM died.
*/
vm_deassign_pcidev(ctx, &pcidev);
}
if (!is_rtvm && phys_bdf) {
memset(reset_path, 0, sizeof(reset_path));
snprintf(reset_path, 40,
"/sys/bus/pci/devices/0000:%02x:%02x.%x/reset",
(phys_bdf >> 8) & 0xFF,
(phys_bdf >> 3) & 0x1F,
(phys_bdf & 0x7));
fd = open(reset_path, O_WRONLY);
if (fd >= 0) {
if (write(fd, "1", 1) < 0)
warnx("reset dev %x failed!\n",
phys_bdf);
close(fd);
}
}
}
/* bind pin info for pass-through device */
static void
passthru_bind_irq(struct vmctx *ctx, struct pci_vdev *dev)
{
struct passthru_dev *ptdev = dev->arg;
uint16_t virt_bdf = PCI_BDF(dev->bus, dev->slot, dev->func);
/* No allocated virq indicates ptdev with MSI support, so no need to
* setup intx info as MSI is preferred over ioapic intr
*/
if (dev->lintr.pin == 0)
return;
pr_info("vm_set_ptdev_intx for %d:%d.%d, ",
dev->bus, dev->slot, dev->func);
pr_info("virt_pin=%d, phys_pin=%d, virt_bdf=0x%x, phys_bdf=0x%x.\n",
dev->lintr.ioapic_irq, ptdev->phys_pin,
virt_bdf, ptdev->phys_bdf);
vm_set_ptdev_intx_info(ctx, virt_bdf, ptdev->phys_bdf,
dev->lintr.ioapic_irq, ptdev->phys_pin, false);
}
static int
passthru_cfgread(struct vmctx *ctx, int vcpu, struct pci_vdev *dev,
int coff, int bytes, uint32_t *rv)
{
struct passthru_dev *ptdev = dev->arg;
if (ptdev->has_virt_pcicfg_regs && ptdev->has_virt_pcicfg_regs(coff))
*rv = pci_get_cfgdata32(dev, coff);
else
*rv = read_config(ptdev->phys_dev, coff, bytes);
return 0;
}
static int
passthru_cfgwrite(struct vmctx *ctx, int vcpu, struct pci_vdev *dev,
int coff, int bytes, uint32_t val)
{
struct passthru_dev *ptdev = dev->arg;
if (!(ptdev->has_virt_pcicfg_regs && ptdev->has_virt_pcicfg_regs(coff)))
write_config(ptdev->phys_dev, coff, bytes, val);
return 0;
}
static void
passthru_write(struct vmctx *ctx, int vcpu, struct pci_vdev *dev, int baridx,
uint64_t offset, int size, uint64_t value)
{
}
static uint64_t
passthru_read(struct vmctx *ctx, int vcpu, struct pci_vdev *dev, int baridx,
uint64_t offset, int size)
{
return ~0UL;
}
static void
write_dsdt_xdci(struct pci_vdev *dev)
{
pr_info("write virt-%x:%x.%x in dsdt for XDCI @ 00:15.1\n",
dev->bus,
dev->slot,
dev->func);
dsdt_line("");
dsdt_line("Device (XDCI)");
dsdt_line("{");
dsdt_line(" Name (_ADR, 0x%04X%04X)", dev->slot, dev->func);
dsdt_line(" Name (_DDN, \"Broxton XDCI controller\")");
dsdt_line(" Name (_STR, Unicode (\"Broxton XDCI controller\"))");
dsdt_line("}");
dsdt_line("");
}
static void
write_dsdt_hdac(struct pci_vdev *dev)
{
pr_info("write virt-%x:%x.%x in dsdt for HDAC @ 00:17.0\n",
dev->bus,
dev->slot,
dev->func);
/* Need prepare I2C # carefully for all passthrough devices */
dsdt_line("Device (I2C0)");
dsdt_line("{");
dsdt_line(" Name (_ADR, 0x%04X%04X)", dev->slot, dev->func);
dsdt_line(" Name (_DDN, \"Intel(R) I2C Controller #0\")");
dsdt_line(" Name (_UID, One) // _UID: Unique ID");
dsdt_line(" Name (LINK, \"\\\\_SB.PCI0.I2C0\")");
dsdt_line(" Name (RBUF, ResourceTemplate ()");
dsdt_line(" {");
dsdt_line(" })");
dsdt_line(" Name (IC4S, 0x00061A80)");
dsdt_line(" Name (_DSD, Package (0x02)");
dsdt_line(" {");
dsdt_line(" ToUUID (\"daffd814-6eba-4d8c-8a91-bc9bbf4aa301\")"
" ,");
dsdt_line(" Package (0x01)");
dsdt_line(" {");
dsdt_line(" Package (0x02)");
dsdt_line(" {");
dsdt_line(" \"clock-frequency\", ");
dsdt_line(" IC4S");
dsdt_line(" }");
dsdt_line(" }");
dsdt_line(" })");
dsdt_line(" Method (FMCN, 0, Serialized)");
dsdt_line(" {");
dsdt_line(" Name (PKG, Package (0x03)");
dsdt_line(" {");
dsdt_line(" 0x64, ");
dsdt_line(" 0xD6, ");
dsdt_line(" 0x1C");
dsdt_line(" })");
dsdt_line(" Return (PKG)");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" Method (FPCN, 0, Serialized)");
dsdt_line(" {");
dsdt_line(" Name (PKG, Package (0x03)");
dsdt_line(" {");
dsdt_line(" 0x26, ");
dsdt_line(" 0x50, ");
dsdt_line(" 0x0C");
dsdt_line(" })");
dsdt_line(" Return (PKG)");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" Method (HSCN, 0, Serialized)");
dsdt_line(" {");
dsdt_line(" Name (PKG, Package (0x03)");
dsdt_line(" {");
dsdt_line(" 0x05, ");
dsdt_line(" 0x18, ");
dsdt_line(" 0x0C");
dsdt_line(" })");
dsdt_line(" Return (PKG)");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" Method (SSCN, 0, Serialized)");
dsdt_line(" {");
dsdt_line(" Name (PKG, Package (0x03)");
dsdt_line(" {");
dsdt_line(" 0x0244, ");
dsdt_line(" 0x02DA, ");
dsdt_line(" 0x1C");
dsdt_line(" })");
dsdt_line(" Return (PKG)");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" Method (_CRS, 0, NotSerialized)");
dsdt_line(" {");
dsdt_line(" Return (RBUF)");
dsdt_line(" }");
dsdt_line(" Device (HDAC)");
dsdt_line(" {");
dsdt_line(" Name (_HID, \"INT34C3\") // _HID: Hardware ID");
dsdt_line(" Name (_CID, \"INT34C3\") // _CID: Compatible ID");
dsdt_line(" Name (_DDN, \"Intel(R) Smart Sound Technology "
"Audio Codec\") // _DDN: DOS Device Name");
dsdt_line(" Name (_UID, One) // _UID: Unique ID");
dsdt_line(" Method (_INI, 0, NotSerialized)");
dsdt_line(" {");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" Method (_CRS, 0, NotSerialized)");
dsdt_line(" {");
dsdt_line(" Name (SBFB, ResourceTemplate ()");
dsdt_line(" {");
dsdt_line(" I2cSerialBusV2 (0x006C, "
"ControllerInitiated, 0x00061A80,");
dsdt_line(" AddressingMode7Bit, "
"\"\\\\_SB.PCI0.I2C0\",");
dsdt_line(" 0x00, ResourceConsumer, , Exclusive,");
dsdt_line(" )");
dsdt_line(" })");
dsdt_line(" Name (SBFI, ResourceTemplate ()");
dsdt_line(" {");
dsdt_line(" })");
dsdt_line(" Return (ConcatenateResTemplate (SBFB, SBFI))");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" Method (_STA, 0, NotSerialized) // _STA: Status");
dsdt_line(" {");
dsdt_line(" Return (0x0F)");
dsdt_line(" }");
dsdt_line(" }");
dsdt_line("");
dsdt_line("}");
}
static void
write_dsdt_hdas(struct pci_vdev *dev)
{
pr_info("write virt-%x:%x.%x in dsdt for HDAS @ 00:e.0\n",
dev->bus,
dev->slot,
dev->func);
dsdt_line("Name (ADFM, 0x2A)");
dsdt_line("Name (ADPM, Zero)");
dsdt_line("Name (AG1L, Zero)");
dsdt_line("Name (AG1H, Zero)");
dsdt_line("Name (AG2L, Zero)");
dsdt_line("Name (AG2H, Zero)");
dsdt_line("Name (AG3L, Zero)");
dsdt_line("Name (AG3H, Zero)");
dsdt_line("Method (ADBG, 1, Serialized)");
dsdt_line("{");
dsdt_line(" Return (Zero)");
dsdt_line("}");
dsdt_line("Device (HDAS)");
dsdt_line("{");
dsdt_line(" Name (_ADR, 0x%04X%04X)", dev->slot, dev->func);
dsdt_line(" OperationRegion (HDAR, PCI_Config, Zero, 0x0100)");
dsdt_line(" Field (HDAR, ByteAcc, NoLock, Preserve)");
dsdt_line(" {");
dsdt_line(" VDID, 32, ");
dsdt_line(" Offset (0x48), ");
dsdt_line(" , 6, ");
dsdt_line(" MBCG, 1, ");
dsdt_line(" Offset (0x54), ");
dsdt_line(" Offset (0x55), ");
dsdt_line(" PMEE, 1, ");
dsdt_line(" , 6, ");
dsdt_line(" PMES, 1");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" Name (NBUF, ResourceTemplate ()");
dsdt_line(" {");
dsdt_line(" QWordMemory (ResourceConsumer, PosDecode, MinNotFixed,"
" MaxNotFixed, NonCacheable, ReadOnly,");
dsdt_line(" 0x0000000000000000, // Granularity");
dsdt_line(" 0x00000000000F2800, // Range Minimum");
dsdt_line(" 0x%08X, // Range Maximum",
0xF2800 + audio_nhlt_len -1);
dsdt_line(" 0x0000000000000000, // Translation Offset");
dsdt_line(" 0x%08X, // Length", audio_nhlt_len);
dsdt_line(" ,, _Y06, AddressRangeACPI, TypeStatic)");
dsdt_line(" })");
dsdt_line(" Name (_S0W, 0x03) // _S0W: S0 Device Wake State");
dsdt_line(" Method (_DSW, 3, NotSerialized)");
dsdt_line(" {");
dsdt_line(" PMEE = Arg0");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" Name (_PRW, Package (0x02)");
dsdt_line(" {");
dsdt_line(" 0x0E, ");
dsdt_line(" 0x03");
dsdt_line(" })");
dsdt_line(" Method (_PS0, 0, Serialized)");
dsdt_line(" {");
dsdt_line(" ADBG (\"HD-A Ctrlr D0\")");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" Method (_PS3, 0, Serialized)");
dsdt_line(" {");
dsdt_line(" ADBG (\"HD-A Ctrlr D3\")");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" Method (_INI, 0, NotSerialized)");
dsdt_line(" {");
dsdt_line(" ADBG (\"HDAS _INI\")");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" Method (_DSM, 4, Serialized)");
dsdt_line(" {");
dsdt_line(" ADBG (\"HDAS _DSM\")");
dsdt_line(" If ((Arg0 == ToUUID ("
"\"a69f886e-6ceb-4594-a41f-7b5dce24c553\")))");
dsdt_line(" {");
dsdt_line(" Switch (ToInteger (Arg2))");
dsdt_line(" {");
dsdt_line(" Case (Zero)");
dsdt_line(" {");
dsdt_line(" Return (Buffer (One)");
dsdt_line(" {");
dsdt_line(" 0x0F");
dsdt_line(" })");
dsdt_line(" }");
dsdt_line(" Case (One)");
dsdt_line(" {");
dsdt_line(" ADBG (\"_DSM Fun 1 NHLT\")");
dsdt_line(" Return (NBUF)");
dsdt_line(" }");
dsdt_line(" Case (0x02)");
dsdt_line(" {");
dsdt_line(" ADBG (\"_DSM Fun 2 FMSK\")");
dsdt_line(" Return (ADFM)");
dsdt_line(" }");
dsdt_line(" Case (0x03)");
dsdt_line(" {");
dsdt_line(" ADBG (\"_DSM Fun 3 PPMS\")");
dsdt_line(" If ((Arg3 == ToUUID ("
"\"b489c2de-0f96-42e1-8a2d-c25b5091ee49\")))");
dsdt_line(" {");
dsdt_line(" Return ((ADPM & One))");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" If ((Arg3 == ToUUID ("
"\"e1284052-8664-4fe4-a353-3878f72704c3\")))");
dsdt_line(" {");
dsdt_line(" Return ((ADPM & 0x02))");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" If ((Arg3 == ToUUID ("
"\"7c708106-3aff-40fe-88be-8c999b3f7445\")))");
dsdt_line(" {");
dsdt_line(" Return ((ADPM & 0x04))");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" If ((Arg3 == ToUUID ("
"\"e0e018a8-3550-4b54-a8d0-a8e05d0fcba2\")))");
dsdt_line(" {");
dsdt_line(" Return ((ADPM & 0x08))");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" If ((Arg3 == ToUUID ("
"\"202badb5-8870-4290-b536-f2380c63f55d\")))");
dsdt_line(" {");
dsdt_line(" Return ((ADPM & 0x10))");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" If ((Arg3 == ToUUID ("
"\"eb3fea76-394b-495d-a14d-8425092d5cb7\")))");
dsdt_line(" {");
dsdt_line(" Return ((ADPM & 0x20))");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" If ((Arg3 == ToUUID ("
"\"f1c69181-329a-45f0-8eef-d8bddf81e036\")))");
dsdt_line(" {");
dsdt_line(" Return ((ADPM & 0x40))");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" If ((Arg3 == ToUUID ("
"\"b3573eff-6441-4a75-91f7-4281eec4597d\")))");
dsdt_line(" {");
dsdt_line(" Return ((ADPM & 0x80))");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" If ((Arg3 == ToUUID ("
"\"ec774fa9-28d3-424a-90e4-69f984f1eeb7\")))");
dsdt_line(" {");
dsdt_line(" Return ((ADPM & 0x0100))");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" If ((Arg3 == ToUUID ("
"\"f101fef0-ff5a-4ad4-8710-43592a6f7948\")))");
dsdt_line(" {");
dsdt_line(" Return ((ADPM & 0x0200))");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" If ((Arg3 == ToUUID ("
"\"f3578986-4400-4adf-ae7e-cd433cd3f26e\")))");
dsdt_line(" {");
dsdt_line(" Return ((ADPM & 0x0400))");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" If ((Arg3 == ToUUID ("
"\"13b5e4d7-a91a-4059-8290-605b01ccb650\")))");
dsdt_line(" {");
dsdt_line(" Return ((ADPM & 0x0800))");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" If ((Arg3 == ACCG (AG1L, AG1H)))");
dsdt_line(" {");
dsdt_line(" Return ((ADPM & 0x20000000))");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" If ((Arg3 == ACCG (AG2L, AG2H)))");
dsdt_line(" {");
dsdt_line(" Return ((ADPM & 0x40000000))");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" If ((Arg3 == ACCG (AG3L, AG3H)))");
dsdt_line(" {");
dsdt_line(" Return ((ADPM & 0x80000000))");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" Return (Zero)");
dsdt_line(" }");
dsdt_line(" Default");
dsdt_line(" {");
dsdt_line(" ADBG (\"_DSM Fun NOK\")");
dsdt_line(" Return (Buffer (One)");
dsdt_line(" {");
dsdt_line(" 0x00");
dsdt_line(" })");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" }");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" ADBG (\"_DSM UUID NOK\")");
dsdt_line(" Return (Buffer (One)");
dsdt_line(" {");
dsdt_line(" 0x00");
dsdt_line(" })");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" Method (ACCG, 2, Serialized)");
dsdt_line(" {");
dsdt_line(" Name (GBUF, Buffer (0x10){})");
dsdt_line(" Concatenate (Arg0, Arg1, GBUF)");
dsdt_line(" Return (GBUF) /* \\_SB_.PCI0.HDAS.ACCG.GBUF */");
dsdt_line(" }");
dsdt_line("}");
}
static void
write_dsdt_ipu_i2c(struct pci_vdev *dev)
{
pr_info("write virt-%x:%x.%x in dsdt for ipu's i2c-bus @ 00:16.0\n",
dev->bus, dev->slot, dev->func);
/* physical I2C 0:16.0 */
dsdt_line("Device (I2C1)");
dsdt_line("{");
dsdt_line(" Name (_ADR, 0x%04X%04X)", dev->slot, dev->func);
dsdt_line(" Name (_DDN, \"Intel(R) I2C Controller #1\")");
dsdt_line(" Name (_UID, One)");
dsdt_line(" Name (LINK, \"\\\\_SB.PCI0.I2C1\")");
dsdt_line(" Name (RBUF, ResourceTemplate ()");
dsdt_line(" {");
dsdt_line(" })");
dsdt_line(" Name (IC0S, 0x00061A80)");
dsdt_line(" Name (_DSD, Package (0x02)");
dsdt_line(" {");
dsdt_line(" ToUUID (\"daffd814-6eba-4d8c-8a91-bc9bbf4aa301\")"
" ,");
dsdt_line(" Package (0x01)");
dsdt_line(" {");
dsdt_line(" Package (0x02)");
dsdt_line(" {");
dsdt_line(" \"clock-frequency\", ");
dsdt_line(" IC0S");
dsdt_line(" }");
dsdt_line(" }");
dsdt_line(" })");
dsdt_line(" Method (FMCN, 0, Serialized)");
dsdt_line(" {");
dsdt_line(" Name (PKG, Package (0x03)");
dsdt_line(" {");
dsdt_line(" 0x64, ");
dsdt_line(" 0xD6, ");
dsdt_line(" 0x1C");
dsdt_line(" })");
dsdt_line(" Return (PKG)");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" Method (FPCN, 0, Serialized)");
dsdt_line(" {");
dsdt_line(" Name (PKG, Package (0x03)");
dsdt_line(" {");
dsdt_line(" 0x26, ");
dsdt_line(" 0x50, ");
dsdt_line(" 0x0C");
dsdt_line(" })");
dsdt_line(" Return (PKG)");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" Method (HSCN, 0, Serialized)");
dsdt_line(" {");
dsdt_line(" Name (PKG, Package (0x03)");
dsdt_line(" {");
dsdt_line(" 0x05, ");
dsdt_line(" 0x18, ");
dsdt_line(" 0x0C");
dsdt_line(" })");
dsdt_line(" Return (PKG)");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" Method (SSCN, 0, Serialized)");
dsdt_line(" {");
dsdt_line(" Name (PKG, Package (0x03)");
dsdt_line(" {");
dsdt_line(" 0x0244, ");
dsdt_line(" 0x02DA, ");
dsdt_line(" 0x1C");
dsdt_line(" })");
dsdt_line(" Return (PKG)");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" Method (_CRS, 0, NotSerialized)");
dsdt_line(" {");
dsdt_line(" Return (RBUF)");
dsdt_line(" }");
dsdt_line("");
/* CAM1 */
dsdt_line(" Device (CAM1)");
dsdt_line(" {");
dsdt_line(" Name (_ADR, Zero) // _ADR: Address");
dsdt_line(" Name (_HID, \"ADV7481A\") // _HID: Hardware ID");
dsdt_line(" Name (_CID, \"ADV7481A\") // _CID: Compatible ID");
dsdt_line(" Name (_UID, One) // _UID: Unique ID");
dsdt_line(" Method (_CRS, 0, Serialized)");
dsdt_line(" {");
dsdt_line(" Name (SBUF, ResourceTemplate ()");
dsdt_line(" {");
dsdt_line(" GpioIo (Exclusive, PullDefault, 0x0000, "
"0x0000, IoRestrictionInputOnly,");
dsdt_line(" \"\\\\_SB.GPO0\", 0x00, "
"ResourceConsumer, ,");
dsdt_line(" )");
dsdt_line(" { // Pin list");
dsdt_line(" 0x001E");
dsdt_line(" }");
dsdt_line(" I2cSerialBusV2 (0x0070, "
"ControllerInitiated, 0x00061A80,");
dsdt_line(" AddressingMode7Bit, "
"\"\\\\_SB.PCI0.I2C1\",");
dsdt_line(" 0x00, ResourceConsumer, , Exclusive,");
dsdt_line(" )");
dsdt_line(" })");
dsdt_line(" Return (SBUF)");
dsdt_line(" }");
dsdt_line(" Method (_DSM, 4, NotSerialized)");
dsdt_line(" {");
dsdt_line(" If ((Arg0 == ToUUID ("
"\"377ba76a-f390-4aff-ab38-9b1bf33a3015\")))");
dsdt_line(" {");
dsdt_line(" Return (\"ADV7481A\")");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" If ((Arg0 == ToUUID ("
"\"ea3b7bd8-e09b-4239-ad6e-ed525f3f26ab\")))");
dsdt_line(" {");
dsdt_line(" Return (0x40)");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" If ((Arg0 == ToUUID ("
"\"8dbe2651-70c1-4c6f-ac87-a37cb46e4af6\")))");
dsdt_line(" {");
dsdt_line(" Return (0xFF)");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" If ((Arg0 == ToUUID ("
"\"26257549-9271-4ca4-bb43-c4899d5a4881\")))");
dsdt_line(" {");
dsdt_line(" If (Arg2 == One)");
dsdt_line(" {");
dsdt_line(" Return (0x02)");
dsdt_line(" }");
dsdt_line(" If (Arg2 == 0x02)");
dsdt_line(" {");
dsdt_line(" Return (0x02001000)");
dsdt_line(" }");
dsdt_line(" If (Arg2 == 0x03)");
dsdt_line(" {");
dsdt_line(" Return (0x02000E01)");
dsdt_line(" }");
dsdt_line(" }");
dsdt_line(" Return (Zero)");
dsdt_line(" }");
dsdt_line(" }");
dsdt_line("");
/* CAM2 */
dsdt_line(" Device (CAM2)");
dsdt_line(" {");
dsdt_line(" Name (_ADR, Zero) // _ADR: Address");
dsdt_line(" Name (_HID, \"ADV7481B\") // _HID: Hardware ID");
dsdt_line(" Name (_CID, \"ADV7481B\") // _CID: Compatible ID");
dsdt_line(" Name (_UID, One) // _UID: Unique ID");
dsdt_line(" Method (_CRS, 0, Serialized)");
dsdt_line(" {");
dsdt_line(" Name (SBUF, ResourceTemplate ()");
dsdt_line(" {");
dsdt_line(" GpioIo (Exclusive, PullDefault, 0x0000, "
"0x0000, IoRestrictionInputOnly,");
dsdt_line(" \"\\\\_SB.GPO0\", 0x00, "
"ResourceConsumer, ,");
dsdt_line(" )");
dsdt_line(" { // Pin list");
dsdt_line(" 0x001E");
dsdt_line(" }");
dsdt_line(" I2cSerialBusV2 (0x0071, "
"ControllerInitiated, 0x00061A80,");
dsdt_line(" AddressingMode7Bit, "
"\"\\\\_SB.PCI0.I2C1\",");
dsdt_line(" 0x00, ResourceConsumer, , Exclusive,");
dsdt_line(" )");
dsdt_line(" })");
dsdt_line(" Return (SBUF)");
dsdt_line(" }");
dsdt_line(" Method (_DSM, 4, NotSerialized) ");
dsdt_line(" {");
dsdt_line(" If ((Arg0 == ToUUID ("
"\"377ba76a-f390-4aff-ab38-9b1bf33a3015\")))");
dsdt_line(" {");
dsdt_line(" Return (\"ADV7481B\")");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" If ((Arg0 == ToUUID ("
"\"ea3b7bd8-e09b-4239-ad6e-ed525f3f26ab\")))");
dsdt_line(" {");
dsdt_line(" Return (0x14)");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" If ((Arg0 == ToUUID ("
"\"8dbe2651-70c1-4c6f-ac87-a37cb46e4af6\")))");
dsdt_line(" {");
dsdt_line(" Return (0xFF)");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" If ((Arg0 == ToUUID ("
"\"26257549-9271-4ca4-bb43-c4899d5a4881\")))");
dsdt_line(" {");
dsdt_line(" If (Arg2 == One)");
dsdt_line(" {");
dsdt_line(" Return (0x02)");
dsdt_line(" }");
dsdt_line(" If (Arg2 == 0x02)");
dsdt_line(" {");
dsdt_line(" Return (0x02001000)");
dsdt_line(" }");
dsdt_line(" If (Arg2 == 0x03)");
dsdt_line(" {");
dsdt_line(" Return (0x02000E01)");
dsdt_line(" }");
dsdt_line(" }");
dsdt_line(" Return (Zero)");
dsdt_line(" }");
dsdt_line(" }");
dsdt_line("");
dsdt_line("}");
}
static void
write_dsdt_urt1(struct pci_vdev *dev)
{
pr_info("write virt-%x:%x.%x in dsdt for URT1 @ 00:18.0\n",
dev->bus,
dev->slot,
dev->func);
dsdt_line("Device (URT1)");
dsdt_line("{");
dsdt_line(" Name (_ADR, 0x%04X%04X)", dev->slot, dev->func);
dsdt_line(" Name (_DDN, \"Intel(R) HS-UART Controller #1\")");
dsdt_line(" Name (_UID, One)");
dsdt_line(" Name (RBUF, ResourceTemplate ()");
dsdt_line(" {");
dsdt_line(" })");
dsdt_line(" Method (_CRS, 0, NotSerialized)");
dsdt_line(" {");
dsdt_line(" Return (RBUF)");
dsdt_line(" }");
dsdt_line("}");
}
static void
write_dsdt_sdc(struct pci_vdev *dev)
{
pr_info("write SDC-%x:%x.%x in dsdt for SDC @ 00:1b.0\n",
dev->bus,
dev->slot,
dev->func);
dsdt_line("Device (SDC)");
dsdt_line("{");
dsdt_line(" Name (_ADR, 0x%04X%04X)", dev->slot, dev->func);
dsdt_line(" Name (_DDN, \"Intel(R) SD Card Controller\")");
dsdt_line(" Name (_UID, One)");
dsdt_line(" Method (_CRS, 0, NotSerialized)");
dsdt_line(" {");
dsdt_line(" Name (RBUF, ResourceTemplate ()");
dsdt_line(" {");
dsdt_line(" GpioInt (Edge, ActiveBoth, SharedAndWake, "
"PullNone, 0, ");
dsdt_line(" \"\\\\_SB_.PCI0.AGPI\", 0, ResourceConsumer, ,");
dsdt_line(" )");
dsdt_line(" { // Pin list");
dsdt_line(" 0");
dsdt_line(" }");
dsdt_line(" GpioIo (Exclusive, PullDefault, 0x0000, "
"0x0000, IoRestrictionInputOnly,");
dsdt_line(" \"\\\\_SB._PCI0.AGPI\", 0x00, "
"ResourceConsumer, ,");
dsdt_line(" )");
dsdt_line(" { // Pin list");
dsdt_line(" 0");
dsdt_line(" }");
dsdt_line(" })");
dsdt_line(" Return (RBUF)");
dsdt_line(" }");
dsdt_line("}");
}
static void
write_dsdt_tsn(struct pci_vdev *dev, uint16_t device)
{
char device_name[4];
uint16_t pcs_id;
if (device == 0x4b32) {
strncpy(device_name, "GTSN", 4);
pcs_id = 0;
} else if (device == 0x4ba0) {
strncpy(device_name, "OTN0", 4);
pcs_id = 1;
} else if (device == 0x4bb0) {
strncpy(device_name, "OTN1", 4);
pcs_id = 2;
} else {
return;
}
pr_info("write TSN-%x:%x.%x in dsdt for TSN-%d\n", dev->bus, dev->slot, dev->func, pcs_id);
dsdt_line("");
dsdt_line("Device (%.4s)", device_name);
dsdt_line("{");
dsdt_line(" Name (_ADR, 0x%04X%04X)", dev->slot, dev->func); // _ADR: Address
dsdt_line(" OperationRegion (TSRT, PCI_Config, Zero, 0x0100)");
dsdt_line(" Field (TSRT, AnyAcc, NoLock, Preserve)");
dsdt_line(" {");
dsdt_line(" DVID, 16,");
dsdt_line(" Offset (0x10),");
dsdt_line(" TADL, 32,");
dsdt_line(" TADH, 32");
dsdt_line(" }");
dsdt_line("}");
dsdt_line("");
dsdt_line("Scope (_SB)");
dsdt_line("{");
dsdt_line(" Device (PCS%01X)", pcs_id);
dsdt_line(" {");
dsdt_line(" Name (_HID, \"INTC1033\")"); // _HID: Hardware ID
dsdt_line(" Name (_UID, Zero)"); // _UID: Unique ID
dsdt_line(" Method (_STA, 0, NotSerialized)"); // _STA: Status
dsdt_line(" {");
dsdt_line("");
dsdt_line(" Return (0x0F)");
dsdt_line(" }");
dsdt_line("");
dsdt_line(" Method (_CRS, 0, Serialized)"); // _CRS: Current Resource Settings
dsdt_line(" {");
dsdt_line(" Name (PCSR, ResourceTemplate ()");
dsdt_line(" {");
dsdt_line(" Memory32Fixed (ReadWrite,");
dsdt_line(" 0x00000000,"); // Address Base
dsdt_line(" 0x00000004,"); // Address Length
dsdt_line(" _Y55)");
dsdt_line(" Memory32Fixed (ReadWrite,");
dsdt_line(" 0x00000000,"); // Address Base
dsdt_line(" 0x00000004,"); // Address Length
dsdt_line(" _Y56)");
dsdt_line(" })");
dsdt_line(" CreateDWordField (PCSR, \\_SB.PCS%01X._CRS._Y55._BAS, MAL0)", pcs_id); // _BAS: Base Address
dsdt_line(" MAL0 = ((^^PCI0.%.4s.TADL & 0xFFFFF000) + 0x0200)", device_name);
dsdt_line(" CreateDWordField (PCSR, \\_SB.PCS%01X._CRS._Y56._BAS, MDL0)", pcs_id); // _BAS: Base Address
dsdt_line(" MDL0 = ((^^PCI0.%.4s.TADL & 0xFFFFF000) + 0x0204)", device_name);
dsdt_line(" Return (PCSR)"); /* \_SB_.PCS0._CRS.PCSR */
dsdt_line(" }");
dsdt_line(" }");
dsdt_line("}");
dsdt_line("");
}
static void
passthru_write_dsdt(struct pci_vdev *dev)
{
uint16_t vendor = 0, device = 0;
vendor = pci_get_cfgdata16(dev, PCIR_VENDOR);
if (vendor != 0x8086)
return;
device = pci_get_cfgdata16(dev, PCIR_DEVICE);
/* Provides ACPI extra info */
if (device == 0x5aaa)
/* XDCI @ 00:15.1 to enable ADB */
write_dsdt_xdci(dev);
else if (device == 0x5ab4)
/* HDAC @ 00:17.0 as codec */
write_dsdt_hdac(dev);
else if (device == 0x5a98)
/* HDAS @ 00:e.0 */
write_dsdt_hdas(dev);
else if (device == 0x5aac)
/* i2c @ 00:16.0 for ipu */
write_dsdt_ipu_i2c(dev);
else if (device == 0x5abc)
/* URT1 @ 00:18.0 for bluetooth*/
write_dsdt_urt1(dev);
else if (device == 0x5aca)
/* SDC @ 00:1b.0 */
write_dsdt_sdc(dev);
else if ((device == 0x4b32) || (device == 0x4ba0) || (device == 0x4bb0))
write_dsdt_tsn(dev, device);
}
struct pci_vdev_ops passthru = {
.class_name = "passthru",
.vdev_init = passthru_init,
.vdev_deinit = passthru_deinit,
.vdev_cfgwrite = passthru_cfgwrite,
.vdev_cfgread = passthru_cfgread,
.vdev_barwrite = passthru_write,
.vdev_barread = passthru_read,
.vdev_phys_access = passthru_bind_irq,
.vdev_write_dsdt = passthru_write_dsdt,
};
DEFINE_PCI_DEVTYPE(passthru);
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