From cfa4d8cc56853ec945956d182ecb4c99102b110a Mon Sep 17 00:00:00 2001 From: Alex Williamson Date: Wed, 2 Nov 2011 14:07:15 -0600 Subject: PCI: Fix PRI and PASID consistency These are extended capabilities, rename and move to proper group for consistency. Signed-off-by: Alex Williamson Signed-off-by: Jesse Barnes --- drivers/pci/ats.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) (limited to 'drivers/pci/ats.c') diff --git a/drivers/pci/ats.c b/drivers/pci/ats.c index b0dd08e6a9da..e11ebafaf774 100644 --- a/drivers/pci/ats.c +++ b/drivers/pci/ats.c @@ -175,7 +175,7 @@ int pci_enable_pri(struct pci_dev *pdev, u32 reqs) u32 max_requests; int pos; - pos = pci_find_ext_capability(pdev, PCI_PRI_CAP); + pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI); if (!pos) return -EINVAL; @@ -206,7 +206,7 @@ void pci_disable_pri(struct pci_dev *pdev) u16 control; int pos; - pos = pci_find_ext_capability(pdev, PCI_PRI_CAP); + pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI); if (!pos) return; @@ -227,7 +227,7 @@ bool pci_pri_enabled(struct pci_dev *pdev) u16 control; int pos; - pos = pci_find_ext_capability(pdev, PCI_PRI_CAP); + pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI); if (!pos) return false; @@ -249,7 +249,7 @@ int pci_reset_pri(struct pci_dev *pdev) u16 control; int pos; - pos = pci_find_ext_capability(pdev, PCI_PRI_CAP); + pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI); if (!pos) return -EINVAL; @@ -282,7 +282,7 @@ bool pci_pri_stopped(struct pci_dev *pdev) u16 control, status; int pos; - pos = pci_find_ext_capability(pdev, PCI_PRI_CAP); + pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI); if (!pos) return true; @@ -311,7 +311,7 @@ int pci_pri_status(struct pci_dev *pdev) u16 status, control; int pos; - pos = pci_find_ext_capability(pdev, PCI_PRI_CAP); + pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI); if (!pos) return -EINVAL; @@ -342,7 +342,7 @@ int pci_enable_pasid(struct pci_dev *pdev, int features) u16 control, supported; int pos; - pos = pci_find_ext_capability(pdev, PCI_PASID_CAP); + pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PASID); if (!pos) return -EINVAL; @@ -376,7 +376,7 @@ void pci_disable_pasid(struct pci_dev *pdev) u16 control = 0; int pos; - pos = pci_find_ext_capability(pdev, PCI_PASID_CAP); + pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PASID); if (!pos) return; @@ -400,7 +400,7 @@ int pci_pasid_features(struct pci_dev *pdev) u16 supported; int pos; - pos = pci_find_ext_capability(pdev, PCI_PASID_CAP); + pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PASID); if (!pos) return -EINVAL; @@ -426,7 +426,7 @@ int pci_max_pasids(struct pci_dev *pdev) u16 supported; int pos; - pos = pci_find_ext_capability(pdev, PCI_PASID_CAP); + pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PASID); if (!pos) return -EINVAL; -- cgit v1.2.3 From 1900ca132f53c3d51e6e6b94ea8912530223c63a Mon Sep 17 00:00:00 2001 From: "Hao, Xudong" Date: Sat, 17 Dec 2011 21:24:40 +0800 Subject: PCI: Enable ATS at the device state restore During S3 or S4 resume or PCI reset, ATS regs aren't restored correctly. This patch enables ATS at the device state restore if PCI device has ATS capability. Signed-off-by: Xudong Hao Signed-off-by: Xiantao Zhang Signed-off-by: Jesse Barnes --- drivers/pci/ats.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'drivers/pci/ats.c') diff --git a/drivers/pci/ats.c b/drivers/pci/ats.c index e11ebafaf774..a4a1b369853b 100644 --- a/drivers/pci/ats.c +++ b/drivers/pci/ats.c @@ -128,6 +128,23 @@ void pci_disable_ats(struct pci_dev *dev) } EXPORT_SYMBOL_GPL(pci_disable_ats); +void pci_restore_ats_state(struct pci_dev *dev) +{ + u16 ctrl; + + if (!pci_ats_enabled(dev)) + return; + if (!pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ATS)) + BUG(); + + ctrl = PCI_ATS_CTRL_ENABLE; + if (!dev->is_virtfn) + ctrl |= PCI_ATS_CTRL_STU(dev->ats->stu - PCI_ATS_MIN_STU); + + pci_write_config_word(dev, dev->ats->pos + PCI_ATS_CTRL, ctrl); +} +EXPORT_SYMBOL_GPL(pci_restore_ats_state); + /** * pci_ats_queue_depth - query the ATS Invalidate Queue Depth * @dev: the PCI device -- cgit v1.2.3