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* [PATCH v3 4/7] sound/radeon: Add quirk for broken 64-bit MSI
@ 2014-10-07  4:38 Benjamin Herrenschmidt
  2014-10-07 23:47 ` Alex Deucher
  0 siblings, 1 reply; 17+ messages in thread
From: Benjamin Herrenschmidt @ 2014-10-07  4:38 UTC (permalink / raw)
  To: Alex Deucher, Bjorn Helgaas
  Cc: linuxppc-dev, Dave Airlie, linux-pci, Anton Blanchard,
	Yijing Wang, Takashi Iwai, Brian King

From: Signed-off-by: Alex Deucher <alexdeucher@gmail.com>

A number of radeon cards have a HW limitation causing them to be
unable to generate the full 64-bit of address bits for MSIs. This
breaks MSIs on some platforms such as POWER machines.

We used to have a powerpc specific quirk to address that on a
single card, but this doesn't scale very well, this is better
put under control of the drivers who know precisely what a given
HW revision can do.

This moves the setting of the quirk flag to the audio driver.

While recent ASICs have that problem fixed, they don't seem to
be listed in the PCI IDs of the current driver, so let's quirk all
the ATI HDMI for now. The consequences are nil on x86 anyway.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: <stable@vger.kernel.org>
---
 sound/pci/hda/hda_intel.c | 96 +++++++++++++++++++++++++++++++++--------------
 sound/pci/hda/hda_priv.h  |  1 +
 2 files changed, 69 insertions(+), 28 deletions(-)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 99b367b..af38ed9 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1506,9 +1506,14 @@ static int azx_first_init(struct azx *chip)
 		return -ENXIO;
 	}
 
-	if (chip->msi)
+	if (chip->msi) {
+		if (chip->driver_caps & AZX_DCAPS_NO_MSI64) {
+			dev_dbg(card->dev, "Disabling 64bit MSI\n");
+			pci->no_64bit_msi = true;
+		}
 		if (pci_enable_msi(pci) < 0)
 			chip->msi = 0;
+	}
 
 	if (azx_acquire_irq(chip, 0) < 0)
 		return -EBUSY;
@@ -2070,58 +2075,93 @@ static const struct pci_device_id azx_ids[] = {
 	{ PCI_DEVICE(0x1022, 0x780d),
 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
 	/* ATI HDMI */
-	{ PCI_DEVICE(0x1002, 0x793b),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0x1314),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0x7919),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
+	{ PCI_DEVICE(0x1002, 0x7969),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
+	{ PCI_DEVICE(0x1002, 0x793b),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0x960f),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
+	{ PCI_DEVICE(0x1002, 0x9646),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0x970f),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0xaa00),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0xaa08),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0xaa10),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0xaa18),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0xaa20),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0xaa28),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0xaa30),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0xaa38),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0xaa40),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0xaa48),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0xaa50),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0xaa58),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0xaa60),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0xaa68),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0xaa80),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0xaa88),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0xaa90),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0xaa98),
-	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0x9902),
-	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0xaaa0),
-	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0xaaa8),
-	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	{ PCI_DEVICE(0x1002, 0xaab0),
-	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI },
+	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI |
+	  AZX_DCAPS_NO_MSI64 },
 	/* VIA VT8251/VT8237A */
 	{ PCI_DEVICE(0x1106, 0x3288),
 	  .driver_data = AZX_DRIVER_VIA | AZX_DCAPS_POSFIX_VIA },
diff --git a/sound/pci/hda/hda_priv.h b/sound/pci/hda/hda_priv.h
index 949cd43..5016014 100644
--- a/sound/pci/hda/hda_priv.h
+++ b/sound/pci/hda/hda_priv.h
@@ -171,6 +171,7 @@ enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
 #define AZX_DCAPS_PM_RUNTIME	(1 << 26)	/* runtime PM support */
 #define AZX_DCAPS_I915_POWERWELL (1 << 27)	/* HSW i915 powerwell support */
 #define AZX_DCAPS_CORBRP_SELF_CLEAR (1 << 28)	/* CORBRP clears itself after reset */
+#define AZX_DCAPS_NO_MSI64      (1 << 29)	/* Stick to 32-bit MSIs */
 
 /* HD Audio class code */
 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO	0x0403

^ permalink raw reply related	[flat|nested] 17+ messages in thread

end of thread, other threads:[~2014-11-13  5:19 UTC | newest]

Thread overview: 17+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-10-07  4:38 [PATCH v3 4/7] sound/radeon: Add quirk for broken 64-bit MSI Benjamin Herrenschmidt
2014-10-07 23:47 ` Alex Deucher
2014-10-07 23:49   ` Benjamin Herrenschmidt
2014-10-08  0:18     ` Alex Deucher
2014-10-08  5:28   ` Benjamin Herrenschmidt
2014-10-08  6:23     ` Alex Deucher
2014-10-08  6:59     ` Takashi Iwai
2014-10-13 20:11     ` Benjamin Herrenschmidt
2014-10-13 20:39       ` Alex Deucher
2014-10-13 20:46       ` Bjorn Helgaas
2014-10-15 22:19     ` Bjorn Helgaas
2014-10-15 22:55       ` Benjamin Herrenschmidt
2014-11-11 21:12         ` Bjorn Helgaas
2014-11-12  2:23           ` Michael Ellerman
2014-11-12  4:06             ` Benjamin Herrenschmidt
2014-11-12  4:09               ` Bjorn Helgaas
2014-11-13  5:19               ` Michael Ellerman

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