[PATCH v3 2/2] xorg/nouveau: blacklist all pre NV30 cards

[Marcin Slusarz <marcin.slusarz@gmail.com>]

On Sun, Jun 05, 2011 at 09:54:31PM +0200, Maarten Maathuis wrote:
> On Sun, Jun 5, 2011 at 9:46 PM, Marcin Slusarz <marcin.slusarz@gmail.com> wrote:
> > On Sun, Jun 05, 2011 at 09:15:47PM +0200, Maarten Maathuis wrote:
> >> 2011/6/5 Stéphane Marchesin <stephane.marchesin@gmail.com>:
> >> > On Sun, Jun 5, 2011 at 12:06, Marcin Slusarz <marcin.slusarz@gmail.com> wrote:
> >> >> On Tue, May 17, 2011 at 12:20:14AM +0200, Marcin Slusarz wrote:
> >> >>> Bail out early in probe, so other driver can take control of the card.
> >> >>> Doing it in screen_create would be too late.
> >> >>> ---
> >> >>>  src/gallium/targets/xorg-nouveau/nouveau_xorg.c |   44 ++++++++++++++++++-----
> >> >>>  1 files changed, 35 insertions(+), 9 deletions(-)
> >> >>
> >> >> ping
> >> >>
> >> >
> >> > Why do you need a list of cards for that, as opposed to reading the reg?
> >> >
> >>
> >> I agree with Stephane, checking register 0 should work fine. First
> >> check for NV04/05, then for NV10-NV2F.
> >>
> >
> > I did it this way because I didn't have access to device file descriptor - it's created
> > somewhere near InitScreen and passed to nouveau_drm_screen_create - too late to
> > exit gracefully (something which I believe is a bug, but I couldn't track it).
> >
> > But now I see xf86-video-nouveau is in exactly the same situation - it opens fd
> > temporarily in PciProbe. I'll adapt its code to target/xorg-nouveau.
> 
> I was incorrect in saying that you should check registers yourself
> (which would require root), but opening the device should give you the
> chipset type.
> 

Yeah. New patch below.
Thanks!

---
From: Marcin Slusarz <marcin.slusarz@gmail.com>
Subject: [PATCH] xorg/nouveau: blacklist all pre NV30 cards

Bail out early in probe, so other driver (xf86-video-nouveau) can take control
of the card. Doing it in screen_create would be too late.
---
 src/gallium/targets/xorg-nouveau/Makefile       |    3 +
 src/gallium/targets/xorg-nouveau/nouveau_xorg.c |   63 +++++++++++++++++++---
 2 files changed, 57 insertions(+), 9 deletions(-)

diff --git a/src/gallium/targets/xorg-nouveau/Makefile b/src/gallium/targets/xorg-nouveau/Makefile
index 16ac954..755969c 100644
--- a/src/gallium/targets/xorg-nouveau/Makefile
+++ b/src/gallium/targets/xorg-nouveau/Makefile
@@ -23,4 +23,7 @@ DRIVER_PIPES = \
 DRIVER_LINKS = \
 	$(shell pkg-config --libs libdrm libdrm_nouveau)
 
+DRIVER_INCLUDES = \
+	$(shell pkg-config --cflags-only-I libdrm libdrm_nouveau xf86driproto)
+
 include ../Makefile.xorg
diff --git a/src/gallium/targets/xorg-nouveau/nouveau_xorg.c b/src/gallium/targets/xorg-nouveau/nouveau_xorg.c
index a25254a..43470a1 100644
--- a/src/gallium/targets/xorg-nouveau/nouveau_xorg.c
+++ b/src/gallium/targets/xorg-nouveau/nouveau_xorg.c
@@ -29,6 +29,9 @@
  */
 
 #include "../../state_trackers/xorg/xorg_winsys.h"
+#include <nouveau_drmif.h>
+#include <xorg/dri.h>
+#include <xf86drmMode.h>
 
 static void nouveau_xorg_identify(int flags);
 static Bool nouveau_xorg_pci_probe(DriverPtr driver, int entity_num,
@@ -38,16 +41,9 @@ static Bool nouveau_xorg_pci_probe(DriverPtr driver, int entity_num,
 static const struct pci_id_match nouveau_xorg_device_match[] = {
     { 0x10de, PCI_MATCH_ANY, PCI_MATCH_ANY, PCI_MATCH_ANY,
       0x00030000, 0x00ffffff, 0 },
-    { 0x12d2, PCI_MATCH_ANY, PCI_MATCH_ANY, PCI_MATCH_ANY,
-      0x00030000, 0x00ffffff, 0 },
     {0, 0, 0},
 };
 
-static SymTabRec nouveau_xorg_chipsets[] = {
-    {PCI_MATCH_ANY, "NVIDIA Graphics Device"},
-    {-1, NULL}
-};
-
 static PciChipsets nouveau_xorg_pci_devices[] = {
     {PCI_MATCH_ANY, PCI_MATCH_ANY, NULL},
     {-1, -1, NULL}
@@ -121,8 +117,7 @@ nouveau_xorg_setup(pointer module, pointer opts, int *errmaj, int *errmin)
 static void
 nouveau_xorg_identify(int flags)
 {
-    xf86PrintChipsets("nouveau2", "Driver for Modesetting Kernel Drivers",
-		      nouveau_xorg_chipsets);
+    xf86DrvMsg(0, X_INFO, "nouveau2: Gallium3D based 2D driver for NV30+ NVIDIA chipsets\n");
 }
 
 static Bool
@@ -131,6 +126,56 @@ nouveau_xorg_pci_probe(DriverPtr driver,
 {
     ScrnInfoPtr scrn = NULL;
     EntityInfoPtr entity;
+    struct nouveau_device *dev = NULL;
+    char *busid;
+    int chipset, ret;
+
+    if (device->vendor_id != 0x10DE)
+	return FALSE;
+
+    if (!xf86LoaderCheckSymbol("DRICreatePCIBusID")) {
+	xf86DrvMsg(-1, X_ERROR, "[drm] No DRICreatePCIBusID symbol\n");
+	return FALSE;
+    }
+    busid = DRICreatePCIBusID(device);
+
+    ret = nouveau_device_open(&dev, busid);
+    if (ret) {
+	xf86DrvMsg(-1, X_ERROR, "[drm] failed to open device\n");
+	free(busid);
+	return FALSE;
+    }
+
+    chipset = dev->chipset;
+    nouveau_device_close(&dev);
+
+    ret = drmCheckModesettingSupported(busid);
+    free(busid);
+    if (ret) {
+	xf86DrvMsg(-1, X_ERROR, "[drm] KMS not enabled\n");
+	return FALSE;
+    }
+
+    switch (chipset & 0xf0) {
+    case 0x00:
+    case 0x10:
+    case 0x20:
+	xf86DrvMsg(-1, X_NOTICE, "Too old chipset: NV%02x\n", chipset);
+	return FALSE;
+    case 0x30:
+    case 0x40:
+    case 0x60:
+    case 0x50:
+    case 0x80:
+    case 0x90:
+    case 0xa0:
+    case 0xc0:
+	xf86DrvMsg(-1, X_INFO, "Detected chipset: NV%02x\n", chipset);
+	break;
+    default:
+	xf86DrvMsg(-1, X_ERROR, "Unknown chipset: NV%02x\n", chipset);
+	return FALSE;
+    }
 
     scrn = xf86ConfigPciEntity(scrn, 0, entity_num, nouveau_xorg_pci_devices,
 			       NULL, NULL, NULL, NULL, NULL);
-- 
1.7.4.1


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