304424e17d
This makes nouveau recognise and report more kinds of PGRAPH errors, as well as prevent GPU lockups resulting from some of them. Lots of guesswork was involved and some part of this is probably incorrect. Some potential-lockuop situations are handled by just resetting a whole PGRAPH subunit, which doesn't sound like a "proper" solution, but seems to work just fine... for now. Signed-off-by: Marcin Kościelnicki <koriakin@0x04.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
33 lines
585 B
C
33 lines
585 B
C
#include "drmP.h"
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#include "drm.h"
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#include "nouveau_drv.h"
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#include "nouveau_drm.h"
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int
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nv50_fb_init(struct drm_device *dev)
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{
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/* This is needed to get meaningful information from 100c90
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* on traps. No idea what these values mean exactly. */
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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switch (dev_priv->chipset) {
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case 0x50:
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nv_wr32(dev, 0x100c90, 0x0707ff);
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break;
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case 0xa5:
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case 0xa8:
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nv_wr32(dev, 0x100c90, 0x0d0fff);
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break;
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default:
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nv_wr32(dev, 0x100c90, 0x1d07ff);
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break;
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}
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return 0;
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}
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void
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nv50_fb_takedown(struct drm_device *dev)
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{
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}
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