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authorMarcel Ziswiler <marcel.ziswiler@toradex.com>2020-05-19 23:01:26 +0200
committerMarcel Ziswiler <marcel.ziswiler@toradex.com>2020-05-19 23:37:01 +0200
commit2ae782ca839e0ee07de37122ddea362adff2e975 (patch)
treedf6b1a190760f51465122ca4c13492d5ac5984c6 /drivers/xen/pci.c
parent0a8ab17689e628c84a666195bfc6ab85d11cf057 (diff)
parent0661b3d6cfd774e28a2e2ba90a3d87479e5c399b (diff)
Merge tag 'v4.9.220' into 4.9-2.3.x-imx
This is the 4.9.220 stable release Conflicts: arch/arm/Kconfig.debug arch/arm/boot/dts/imx7s.dtsi arch/arm/mach-imx/common.h arch/arm/mach-imx/cpuidle-imx6q.c arch/arm/mach-imx/cpuidle-imx6sx.c arch/arm/mach-imx/suspend-imx6.S block/blk-core.c drivers/crypto/caam/caamalg.c drivers/crypto/mxs-dcp.c drivers/dma/imx-sdma.c drivers/gpu/drm/bridge/adv7511/adv7511_drv.c drivers/input/keyboard/imx_keypad.c drivers/input/keyboard/snvs_pwrkey.c drivers/mmc/host/sdhci.c drivers/net/can/flexcan.c drivers/net/ethernet/freescale/fec_main.c drivers/net/phy/phy_device.c drivers/net/wireless/ath/ath10k/pci.c drivers/tty/serial/imx.c drivers/usb/dwc3/gadget.c drivers/usb/host/xhci.c include/linux/blkdev.h include/linux/cpu.h include/linux/platform_data/dma-imx-sdma.h kernel/cpu.c net/wireless/util.c sound/soc/fsl/Kconfig sound/soc/fsl/fsl_esai.c sound/soc/fsl/fsl_sai.c sound/soc/fsl/imx-sgtl5000.c
Diffstat (limited to 'drivers/xen/pci.c')
-rw-r--r--drivers/xen/pci.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/xen/pci.c b/drivers/xen/pci.c
index 7494dbeb4409..db58aaa4dc59 100644
--- a/drivers/xen/pci.c
+++ b/drivers/xen/pci.c
@@ -29,6 +29,8 @@
#include "../pci/pci.h"
#ifdef CONFIG_PCI_MMCONFIG
#include <asm/pci_x86.h>
+
+static int xen_mcfg_late(void);
#endif
static bool __read_mostly pci_seg_supported = true;
@@ -40,7 +42,18 @@ static int xen_add_device(struct device *dev)
#ifdef CONFIG_PCI_IOV
struct pci_dev *physfn = pci_dev->physfn;
#endif
-
+#ifdef CONFIG_PCI_MMCONFIG
+ static bool pci_mcfg_reserved = false;
+ /*
+ * Reserve MCFG areas in Xen on first invocation due to this being
+ * potentially called from inside of acpi_init immediately after
+ * MCFG table has been finally parsed.
+ */
+ if (!pci_mcfg_reserved) {
+ xen_mcfg_late();
+ pci_mcfg_reserved = true;
+ }
+#endif
if (pci_seg_supported) {
struct {
struct physdev_pci_device_add add;
@@ -213,7 +226,7 @@ static int __init register_xen_pci_notifier(void)
arch_initcall(register_xen_pci_notifier);
#ifdef CONFIG_PCI_MMCONFIG
-static int __init xen_mcfg_late(void)
+static int xen_mcfg_late(void)
{
struct pci_mmcfg_region *cfg;
int rc;
@@ -252,8 +265,4 @@ static int __init xen_mcfg_late(void)
}
return 0;
}
-/*
- * Needs to be done after acpi_init which are subsys_initcall.
- */
-subsys_initcall_sync(xen_mcfg_late);
#endif