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authorTakashi Iwai <tiwai@suse.de>2020-03-30 14:43:00 +0300
committerTakashi Iwai <tiwai@suse.de>2020-03-30 14:43:00 +0300
commit3c22baeab40b2f8e75907cfd7aa69147d5343d2c (patch)
treee8300e52242ae3a9c7bfe6089ee7125324095e27 /drivers/iommu/amd_iommu_init.c
parentaa21c3d4b941739651e77747d2f7a20a6c1d87bc (diff)
parent1c521d7e62262793789845989edca57dea24eb7d (diff)
downloadlinux-3c22baeab40b2f8e75907cfd7aa69147d5343d2c.tar.xz
Merge tag 'asoc-v5.7' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v5.7 This is a very big update for the core since Morimoto-san has been rather busy continuing his refactorings to clean up a lot of the cruft that we have accumilated over the years. We've also gained several new drivers, including initial (but still not complete) parts of the Intel SoundWire support. - Lots of refactorings to modernize the code from Morimoto-san. - Conversion of SND_SOC_ALL_CODECS to use imply from Geert Uytterhoeven. - Continued refactoring and fixing of the Intel support. - Soundwire and more advanced clocking support for Realtek RT5682. - Support for amlogic GX, Meson 8, Meson 8B and T9015 DAC, Broadcom DSL/PON, Ingenic JZ4760 and JZ4770, Realtek RL6231, and TI TAS2563 and TLV320ADCX140.
Diffstat (limited to 'drivers/iommu/amd_iommu_init.c')
-rw-r--r--drivers/iommu/amd_iommu_init.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 2759a8d57b7f..6be3853a5d97 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -2523,6 +2523,7 @@ static int __init early_amd_iommu_init(void)
struct acpi_table_header *ivrs_base;
acpi_status status;
int i, remap_cache_sz, ret = 0;
+ u32 pci_id;
if (!amd_iommu_detected)
return -ENODEV;
@@ -2610,6 +2611,16 @@ static int __init early_amd_iommu_init(void)
if (ret)
goto out;
+ /* Disable IOMMU if there's Stoney Ridge graphics */
+ for (i = 0; i < 32; i++) {
+ pci_id = read_pci_config(0, i, 0, 0);
+ if ((pci_id & 0xffff) == 0x1002 && (pci_id >> 16) == 0x98e4) {
+ pr_info("Disable IOMMU on Stoney Ridge\n");
+ amd_iommu_disabled = true;
+ break;
+ }
+ }
+
/* Disable any previously enabled IOMMUs */
if (!is_kdump_kernel() || amd_iommu_disabled)
disable_iommus();
@@ -2718,7 +2729,7 @@ static int __init state_next(void)
ret = early_amd_iommu_init();
init_state = ret ? IOMMU_INIT_ERROR : IOMMU_ACPI_FINISHED;
if (init_state == IOMMU_ACPI_FINISHED && amd_iommu_disabled) {
- pr_info("AMD IOMMU disabled on kernel command-line\n");
+ pr_info("AMD IOMMU disabled\n");
init_state = IOMMU_CMDLINE_DISABLED;
ret = -EINVAL;
}