--- /dev/null
+From 67db87dc8284070adb15b3c02c1c31d5cf51c5d6 Mon Sep 17 00:00:00 2001
+From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+Date: Fri, 30 Jul 2021 23:27:15 +0300
+Subject: dmaengine: acpi: Avoid comparison GSI with Linux vIRQ
+
+From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+
+commit 67db87dc8284070adb15b3c02c1c31d5cf51c5d6 upstream.
+
+Currently the CRST parsing relies on the fact that on most of x86 devices
+the IRQ mapping is 1:1 with Linux vIRQ. However, it may be not true for
+some. Fix this by converting GSI to Linux vIRQ before checking it.
+
+Fixes: ee8209fd026b ("dma: acpi-dma: parse CSRT to extract additional resources")
+Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+Link: https://lore.kernel.org/r/20210730202715.24375-1-andriy.shevchenko@linux.intel.com
+Signed-off-by: Vinod Koul <vkoul@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/dma/acpi-dma.c | 10 +++++++---
+ 1 file changed, 7 insertions(+), 3 deletions(-)
+
+--- a/drivers/dma/acpi-dma.c
++++ b/drivers/dma/acpi-dma.c
+@@ -72,10 +72,14 @@ static int acpi_dma_parse_resource_group
+
+ si = (const struct acpi_csrt_shared_info *)&grp[1];
+
+- /* Match device by MMIO and IRQ */
++ /* Match device by MMIO */
+ if (si->mmio_base_low != lower_32_bits(mem) ||
+- si->mmio_base_high != upper_32_bits(mem) ||
+- si->gsi_interrupt != irq)
++ si->mmio_base_high != upper_32_bits(mem))
++ return 0;
++
++ /* Match device by Linux vIRQ */
++ ret = acpi_register_gsi(NULL, si->gsi_interrupt, si->interrupt_mode, si->interrupt_polarity);
++ if (ret != irq)
+ return 0;
+
+ dev_dbg(&adev->dev, "matches with %.4s%04X (rev %u)\n",