I managed to get my pci radeon working with an evil hack, a proper fix
is needed but after using the pcigart patch, I did in
programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/radeon_drv.h
#define COMMIT_RING() do { \
+ u32 test_read; \
+ test_read = RADEON_READ( RADEON_CP_RB_RPTR ); \
RADEON_WRITE( RADEON_CP_RB_WPTR, dev_priv->ring.tail ); \
} while (0)
it no longer locks up, a better place for this hack would probably be in
the define for RADEON_WRITE but it works just here for now.
Maybe someone can investigate why a read before this write prevents the
lockup I have occur without it.
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