[Intel-gfx] [PATCH] Revert "HAX iommu/intel: Ignore igfx_off"

* [Intel-gfx] [PATCH] Revert "HAX iommu/intel: Ignore igfx_off"
@ 2022-09-14 20:35 Lucas De Marchi
  2022-09-14 21:14 ` [Intel-gfx] ✓ Fi.CI.BAT: success for " Patchwork
                   ` (2 more replies)
  0 siblings, 3 replies; 7+ messages in thread
From: Lucas De Marchi @ 2022-09-14 20:35 UTC (permalink / raw)
  To: intel-gfx; +Cc: Lucas De Marchi, Rodrigo Vivi

This reverts commit 58f44e349cfc10a4f2208fd806829c8fd046480b.

To be removed from the topic/core-for-CI branch. If CI's config is
setting that, it just shouldn't do it. Looking at a random current CI
execution, the command line is:

Command line: BOOT_IMAGE=/boot/drm_intel root=/dev/nvme0n1p2 \
	rootwait fsck.repair=yes nmi_watchdog=panic,auto panic=5 \
	softdog.soft_panic=5 drm.debug=0xe log_buf_len=1M trace_clock=global 3 \
	modprobe.blacklist=i915,snd_hda_intel ro

So it should be safe to remove this commit.

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
---
 drivers/iommu/intel/iommu.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index 598c9b86dfd8..1f2cd43cf9bc 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -323,6 +323,8 @@ static int __init intel_iommu_setup(char *str)
 			no_platform_optin = 1;
 			pr_info("IOMMU disabled\n");
 		} else if (!strncmp(str, "igfx_off", 8)) {
+			dmar_map_gfx = 0;
+			pr_info("Disable GFX device mapping\n");
 		} else if (!strncmp(str, "forcedac", 8)) {
 			pr_warn("intel_iommu=forcedac deprecated; use iommu.forcedac instead\n");
 			iommu_dma_forcedac = true;
-- 
2.37.3


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