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path: root/drivers/pci/quirks.c
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Diffstat (limited to 'drivers/pci/quirks.c')
-rw-r--r--drivers/pci/quirks.c286
1 files changed, 230 insertions, 56 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index c232729f5b1b..673683660b5c 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1634,6 +1634,7 @@ static void quirk_pcie_mch(struct pci_dev *pdev)
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_HUAWEI, 0x1610, quirk_pcie_mch);
/*
@@ -2156,7 +2157,7 @@ static void quirk_blacklist_vpd(struct pci_dev *dev)
{
if (dev->vpd) {
dev->vpd->len = 0;
- dev_warn(&dev->dev, FW_BUG "VPD access disabled\n");
+ dev_warn(&dev->dev, FW_BUG "disabling VPD access (can't determine size of non-standard VPD format)\n");
}
}
@@ -2173,6 +2174,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_LSI_LOGIC, 0x005d, quirk_blacklist_vpd);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_LSI_LOGIC, 0x005f, quirk_blacklist_vpd);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, PCI_ANY_ID,
quirk_blacklist_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_QLOGIC, 0x2261, quirk_blacklist_vpd);
/*
* For Broadcom 5706, 5708, 5709 rev. A nics, any read beyond the
@@ -2239,6 +2241,27 @@ DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_BROADCOM,
PCI_DEVICE_ID_TIGON3_5719,
quirk_brcm_5719_limit_mrrs);
+#ifdef CONFIG_PCIE_IPROC_PLATFORM
+static void quirk_paxc_bridge(struct pci_dev *pdev)
+{
+ /* The PCI config space is shared with the PAXC root port and the first
+ * Ethernet device. So, we need to workaround this by telling the PCI
+ * code that the bridge is not an Ethernet device.
+ */
+ if (pdev->hdr_type == PCI_HEADER_TYPE_BRIDGE)
+ pdev->class = PCI_CLASS_BRIDGE_PCI << 8;
+
+ /* MPSS is not being set properly (as it is currently 0). This is
+ * because that area of the PCI config space is hard coded to zero, and
+ * is not modifiable by firmware. Set this to 2 (e.g., 512 byte MPS)
+ * so that the MPS can be set to the real max value.
+ */
+ pdev->pcie_mpss = 2;
+}
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_BROADCOM, 0x16cd, quirk_paxc_bridge);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_BROADCOM, 0x16f0, quirk_paxc_bridge);
+#endif
+
/* Originally in EDAC sources for i82875P:
* Intel tells BIOS developers to hide device 6 which
* configures the overflow device access containing
@@ -3044,7 +3067,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0e0d, quirk_intel_ntb);
static ktime_t fixup_debug_start(struct pci_dev *dev,
void (*fn)(struct pci_dev *dev))
{
- ktime_t calltime = ktime_set(0, 0);
+ ktime_t calltime = 0;
dev_dbg(&dev->dev, "calling %pF\n", fn);
if (initcall_debug) {
@@ -3113,32 +3136,35 @@ static void quirk_remove_d3_delay(struct pci_dev *dev)
{
dev->d3_delay = 0;
}
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c00, quirk_remove_d3_delay);
+/* C600 Series devices do not need 10ms d3_delay */
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0412, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c00, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c0c, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c31, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3a, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3d, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c2d, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c20, quirk_remove_d3_delay);
+/* Lynxpoint-H PCH devices do not need 10ms d3_delay */
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c02, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c18, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c1c, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c20, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c22, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c26, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c2d, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c31, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3a, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3d, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c4e, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c02, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c22, quirk_remove_d3_delay);
/* Intel Cherrytrail devices do not need 10ms d3_delay */
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2280, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2298, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x229c, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b0, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b5, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b7, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b8, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22d8, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22dc, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b5, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b7, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2298, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x229c, quirk_remove_d3_delay);
+
/*
- * Some devices may pass our check in pci_intx_mask_supported if
+ * Some devices may pass our check in pci_intx_mask_supported() if
* PCI_COMMAND_INTX_DISABLE works though they actually do not properly
* support this feature.
*/
@@ -3146,53 +3172,139 @@ static void quirk_broken_intx_masking(struct pci_dev *dev)
{
dev->broken_intx_masking = 1;
}
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_CHELSIO, 0x0030,
- quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(0x1814, 0x0601, /* Ralink RT2800 802.11n PCI */
- quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x0030,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(0x1814, 0x0601, /* Ralink RT2800 802.11n PCI */
+ quirk_broken_intx_masking);
+
/*
* Realtek RTL8169 PCI Gigabit Ethernet Controller (rev 10)
* Subsystem: Realtek RTL8169/8110 Family PCI Gigabit Ethernet NIC
*
* RTL8110SC - Fails under PCI device assignment using DisINTx masking.
*/
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_REALTEK, 0x8169,
- quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MELLANOX, PCI_ANY_ID,
- quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_REALTEK, 0x8169,
+ quirk_broken_intx_masking);
/*
* Intel i40e (XL710/X710) 10/20/40GbE NICs all have broken INTx masking,
* DisINTx can be set but the interrupt status bit is non-functional.
*/
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1572,
- quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1574,
- quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1580,
- quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1581,
- quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1583,
- quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1584,
- quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1585,
- quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1586,
- quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1587,
- quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1588,
- quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1589,
- quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x37d0,
- quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x37d1,
- quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x37d2,
- quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1572,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1574,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1580,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1581,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1583,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1584,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1585,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1586,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1587,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1588,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1589,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x37d0,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x37d1,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x37d2,
+ quirk_broken_intx_masking);
+
+static u16 mellanox_broken_intx_devs[] = {
+ PCI_DEVICE_ID_MELLANOX_HERMON_SDR,
+ PCI_DEVICE_ID_MELLANOX_HERMON_DDR,
+ PCI_DEVICE_ID_MELLANOX_HERMON_QDR,
+ PCI_DEVICE_ID_MELLANOX_HERMON_DDR_GEN2,
+ PCI_DEVICE_ID_MELLANOX_HERMON_QDR_GEN2,
+ PCI_DEVICE_ID_MELLANOX_HERMON_EN,
+ PCI_DEVICE_ID_MELLANOX_HERMON_EN_GEN2,
+ PCI_DEVICE_ID_MELLANOX_CONNECTX_EN,
+ PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_T_GEN2,
+ PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_GEN2,
+ PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_5_GEN2,
+ PCI_DEVICE_ID_MELLANOX_CONNECTX2,
+ PCI_DEVICE_ID_MELLANOX_CONNECTX3,
+ PCI_DEVICE_ID_MELLANOX_CONNECTX3_PRO,
+};
+
+#define CONNECTX_4_CURR_MAX_MINOR 99
+#define CONNECTX_4_INTX_SUPPORT_MINOR 14
+
+/*
+ * Check ConnectX-4/LX FW version to see if it supports legacy interrupts.
+ * If so, don't mark it as broken.
+ * FW minor > 99 means older FW version format and no INTx masking support.
+ * FW minor < 14 means new FW version format and no INTx masking support.
+ */
+static void mellanox_check_broken_intx_masking(struct pci_dev *pdev)
+{
+ __be32 __iomem *fw_ver;
+ u16 fw_major;
+ u16 fw_minor;
+ u16 fw_subminor;
+ u32 fw_maj_min;
+ u32 fw_sub_min;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(mellanox_broken_intx_devs); i++) {
+ if (pdev->device == mellanox_broken_intx_devs[i]) {
+ pdev->broken_intx_masking = 1;
+ return;
+ }
+ }
+
+ /* Getting here means Connect-IB cards and up. Connect-IB has no INTx
+ * support so shouldn't be checked further
+ */
+ if (pdev->device == PCI_DEVICE_ID_MELLANOX_CONNECTIB)
+ return;
+
+ if (pdev->device != PCI_DEVICE_ID_MELLANOX_CONNECTX4 &&
+ pdev->device != PCI_DEVICE_ID_MELLANOX_CONNECTX4_LX)
+ return;
+
+ /* For ConnectX-4 and ConnectX-4LX, need to check FW support */
+ if (pci_enable_device_mem(pdev)) {
+ dev_warn(&pdev->dev, "Can't enable device memory\n");
+ return;
+ }
+
+ fw_ver = ioremap(pci_resource_start(pdev, 0), 4);
+ if (!fw_ver) {
+ dev_warn(&pdev->dev, "Can't map ConnectX-4 initialization segment\n");
+ goto out;
+ }
+
+ /* Reading from resource space should be 32b aligned */
+ fw_maj_min = ioread32be(fw_ver);
+ fw_sub_min = ioread32be(fw_ver + 1);
+ fw_major = fw_maj_min & 0xffff;
+ fw_minor = fw_maj_min >> 16;
+ fw_subminor = fw_sub_min & 0xffff;
+ if (fw_minor > CONNECTX_4_CURR_MAX_MINOR ||
+ fw_minor < CONNECTX_4_INTX_SUPPORT_MINOR) {
+ dev_warn(&pdev->dev, "ConnectX-4: FW %u.%u.%u doesn't support INTx masking, disabling. Please upgrade FW to %d.14.1100 and up for INTx support\n",
+ fw_major, fw_minor, fw_subminor, pdev->device ==
+ PCI_DEVICE_ID_MELLANOX_CONNECTX4 ? 12 : 14);
+ pdev->broken_intx_masking = 1;
+ }
+
+ iounmap(fw_ver);
+
+out:
+ pci_disable_device(pdev);
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX, PCI_ANY_ID,
+ mellanox_check_broken_intx_masking);
static void quirk_no_bus_reset(struct pci_dev *dev)
{
@@ -3255,6 +3367,25 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_4C
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PORT_RIDGE,
quirk_thunderbolt_hotplug_msi);
+static void quirk_chelsio_extend_vpd(struct pci_dev *dev)
+{
+ pci_set_vpd_size(dev, 8192);
+}
+
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x20, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x21, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x22, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x23, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x24, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x25, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x26, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x30, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x31, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x32, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x35, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x36, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x37, quirk_chelsio_extend_vpd);
+
#ifdef CONFIG_ACPI
/*
* Apple: Shutdown Cactus Ridge Thunderbolt controller.
@@ -3500,7 +3631,7 @@ static int __init pci_apply_final_quirks(void)
fs_initcall_sync(pci_apply_final_quirks);
/*
- * Followings are device-specific reset methods which can be used to
+ * Following are device-specific reset methods which can be used to
* reset a single function if other methods (e.g. FLR, PM D0->D3) are
* not available.
*/
@@ -4030,6 +4161,26 @@ static int pci_quirk_intel_pch_acs(struct pci_dev *dev, u16 acs_flags)
}
/*
+ * These QCOM root ports do provide ACS-like features to disable peer
+ * transactions and validate bus numbers in requests, but do not provide an
+ * actual PCIe ACS capability. Hardware supports source validation but it
+ * will report the issue as Completer Abort instead of ACS Violation.
+ * Hardware doesn't support peer-to-peer and each root port is a root
+ * complex with unique segment numbers. It is not possible for one root
+ * port to pass traffic to another root port. All PCIe transactions are
+ * terminated inside the root port.
+ */
+static int pci_quirk_qcom_rp_acs(struct pci_dev *dev, u16 acs_flags)
+{
+ u16 flags = (PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_UF | PCI_ACS_SV);
+ int ret = acs_flags & ~flags ? 0 : 1;
+
+ dev_info(&dev->dev, "Using QCOM ACS Quirk (%d)\n", ret);
+
+ return ret;
+}
+
+/*
* Sunrise Point PCH root ports implement ACS, but unfortunately as shown in
* the datasheet (Intel 100 Series Chipset Family PCH Datasheet, Vol. 2,
* 12.1.46, 12.1.47)[1] this chipset uses dwords for the ACS capability and
@@ -4044,15 +4195,35 @@ static int pci_quirk_intel_pch_acs(struct pci_dev *dev, u16 acs_flags)
*
* N.B. This doesn't fix what lspci shows.
*
+ * The 100 series chipset specification update includes this as errata #23[3].
+ *
+ * The 200 series chipset (Union Point) has the same bug according to the
+ * specification update (Intel 200 Series Chipset Family Platform Controller
+ * Hub, Specification Update, January 2017, Revision 001, Document# 335194-001,
+ * Errata 22)[4]. Per the datasheet[5], root port PCI Device IDs for this
+ * chipset include:
+ *
+ * 0xa290-0xa29f PCI Express Root port #{0-16}
+ * 0xa2e7-0xa2ee PCI Express Root port #{17-24}
+ *
* [1] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-datasheet-vol-2.html
* [2] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-datasheet-vol-1.html
+ * [3] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-spec-update.html
+ * [4] http://www.intel.com/content/www/us/en/chipsets/200-series-chipset-pch-spec-update.html
+ * [5] http://www.intel.com/content/www/us/en/chipsets/200-series-chipset-pch-datasheet-vol-1.html
*/
static bool pci_quirk_intel_spt_pch_acs_match(struct pci_dev *dev)
{
- return pci_is_pcie(dev) &&
- pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT &&
- ((dev->device & ~0xf) == 0xa110 ||
- (dev->device >= 0xa167 && dev->device <= 0xa16a));
+ if (!pci_is_pcie(dev) || pci_pcie_type(dev) != PCI_EXP_TYPE_ROOT_PORT)
+ return false;
+
+ switch (dev->device) {
+ case 0xa110 ... 0xa11f: case 0xa167 ... 0xa16a: /* Sunrise Point */
+ case 0xa290 ... 0xa29f: case 0xa2e7 ... 0xa2ee: /* Union Point */
+ return true;
+ }
+
+ return false;
}
#define INTEL_SPT_ACS_CTRL (PCI_ACS_CAP + 4)
@@ -4165,6 +4336,9 @@ static const struct pci_dev_acs_enabled {
/* I219 */
{ PCI_VENDOR_ID_INTEL, 0x15b7, pci_quirk_mf_endpoint_acs },
{ PCI_VENDOR_ID_INTEL, 0x15b8, pci_quirk_mf_endpoint_acs },
+ /* QCOM QDF2xxx root ports */
+ { 0x17cb, 0x400, pci_quirk_qcom_rp_acs },
+ { 0x17cb, 0x401, pci_quirk_qcom_rp_acs },
/* Intel PCH root ports */
{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_intel_pch_acs },
{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_intel_spt_pch_acs },