From: Ville Syrjala <ville.syrjala@linux.intel.com> To: intel-gfx@lists.freedesktop.org Cc: iommu@lists.linux-foundation.org, David Woodhouse <dwmw2@infradead.org> Subject: [PATCH 3/4] iommu/vt-d: Disable superpage for Skylake igfx Date: Fri, 9 Jul 2021 19:47:49 +0300 [thread overview] Message-ID: <20210709164750.9465-4-ville.syrjala@linux.intel.com> (raw) In-Reply-To: <20210709164750.9465-1-ville.syrjala@linux.intel.com> From: Ville Syrjälä <ville.syrjala@linux.intel.com> Skylake has known issues with VT-d superpage. Namely frame buffer compression (FBC) can't be safely used when superpage is enabled. Currently we're disabling FBC entirely when VT-d is active, but I think just disabling superpage would be better since FBC can save some power. TODO: might be nice to disable superpage only for the igfx iommu instead of both iommus TODO: would be nice to use the macros from include/drm/i915_pciids.h, but can't do that with DECLARE_PCI_FIXUP_HEADER() Cc: David Woodhouse <dwmw2@infradead.org> Cc: Lu Baolu <baolu.lu@linux.intel.com> Cc: iommu@lists.linux-foundation.org Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> --- drivers/iommu/intel/iommu.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index 40117f868761..14f951ca4799 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -5623,6 +5623,33 @@ static void quirk_iommu_nosp(struct pci_dev *dev) intel_iommu_superpage = 0; } +/* Skylake igfx has issues with superpage */ +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1906, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1913, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x190E, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1915, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1902, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x190A, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x190B, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1917, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1916, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1921, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x191E, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1912, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x191A, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x191B, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x191D, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1923, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1926, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1927, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x192A, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x192B, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x192D, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1932, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x193A, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x193B, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x193D, quirk_iommu_nosp); + /* Broxton igfx has issues with superpage */ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0A84, quirk_iommu_nosp); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1A84, quirk_iommu_nosp); -- 2.31.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
WARNING: multiple messages have this Message-ID (diff)
From: Ville Syrjala <ville.syrjala@linux.intel.com> To: intel-gfx@lists.freedesktop.org Cc: iommu@lists.linux-foundation.org, David Woodhouse <dwmw2@infradead.org>, Lu Baolu <baolu.lu@linux.intel.com> Subject: [Intel-gfx] [PATCH 3/4] iommu/vt-d: Disable superpage for Skylake igfx Date: Fri, 9 Jul 2021 19:47:49 +0300 [thread overview] Message-ID: <20210709164750.9465-4-ville.syrjala@linux.intel.com> (raw) In-Reply-To: <20210709164750.9465-1-ville.syrjala@linux.intel.com> From: Ville Syrjälä <ville.syrjala@linux.intel.com> Skylake has known issues with VT-d superpage. Namely frame buffer compression (FBC) can't be safely used when superpage is enabled. Currently we're disabling FBC entirely when VT-d is active, but I think just disabling superpage would be better since FBC can save some power. TODO: might be nice to disable superpage only for the igfx iommu instead of both iommus TODO: would be nice to use the macros from include/drm/i915_pciids.h, but can't do that with DECLARE_PCI_FIXUP_HEADER() Cc: David Woodhouse <dwmw2@infradead.org> Cc: Lu Baolu <baolu.lu@linux.intel.com> Cc: iommu@lists.linux-foundation.org Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> --- drivers/iommu/intel/iommu.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index 40117f868761..14f951ca4799 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -5623,6 +5623,33 @@ static void quirk_iommu_nosp(struct pci_dev *dev) intel_iommu_superpage = 0; } +/* Skylake igfx has issues with superpage */ +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1906, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1913, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x190E, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1915, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1902, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x190A, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x190B, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1917, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1916, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1921, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x191E, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1912, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x191A, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x191B, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x191D, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1923, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1926, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1927, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x192A, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x192B, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x192D, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1932, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x193A, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x193B, quirk_iommu_nosp); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x193D, quirk_iommu_nosp); + /* Broxton igfx has issues with superpage */ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0A84, quirk_iommu_nosp); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1A84, quirk_iommu_nosp); -- 2.31.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
next prev parent reply other threads:[~2021-07-09 16:48 UTC|newest] Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-07-09 16:47 [PATCH 0/4] iommu/vt-d: Disable igfx iommu superpage on bxt/skl/glk Ville Syrjala 2021-07-09 16:47 ` [Intel-gfx] " Ville Syrjala 2021-07-09 16:47 ` [PATCH 1/4] iommu/vt-d: Disable superpage for Geminilake igfx Ville Syrjala 2021-07-09 16:47 ` [Intel-gfx] " Ville Syrjala 2021-07-11 23:23 ` Lu Baolu 2021-07-11 23:23 ` [Intel-gfx] " Lu Baolu 2021-07-12 15:47 ` Ville Syrjälä 2021-07-12 15:47 ` [Intel-gfx] " Ville Syrjälä 2021-07-13 1:34 ` Lu Baolu 2021-07-13 1:34 ` [Intel-gfx] " Lu Baolu 2021-07-13 20:30 ` Ville Syrjälä 2021-07-13 20:30 ` [Intel-gfx] " Ville Syrjälä 2021-07-14 1:31 ` Lu Baolu 2021-07-14 1:31 ` [Intel-gfx] " Lu Baolu 2021-07-09 16:47 ` [PATCH 2/4] iommu/vt-d: Disable superpage for Broxton igfx Ville Syrjala 2021-07-09 16:47 ` [Intel-gfx] " Ville Syrjala 2021-07-09 16:47 ` Ville Syrjala [this message] 2021-07-09 16:47 ` [Intel-gfx] [PATCH 3/4] iommu/vt-d: Disable superpage for Skylake igfx Ville Syrjala 2021-07-09 16:47 ` [PATCH 4/4] drm/i915/fbc: Allow FBC + VT-d on SKL/BXT Ville Syrjala 2021-07-09 16:47 ` [Intel-gfx] " Ville Syrjala 2021-07-09 18:12 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for iommu/vt-d: Disable igfx iommu superpage on bxt/skl/glk Patchwork 2021-07-09 18:38 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork 2021-07-10 12:52 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork 2021-07-13 1:59 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for iommu/vt-d: Disable igfx iommu superpage on bxt/skl/glk (rev2) Patchwork
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