| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.14 24/98] drm/nv4c/mc: disable msi | Date | Sun, 25 Jan 2015 10:06:42 -0800 |
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3.14-stable review patch. If anyone has any objections, please let me know.
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From: Ilia Mirkin <imirkin@alum.mit.edu>
commit 4761703bd04bbdf56396d264903cc5a1fdcb3c01 upstream.
Several users have, over time, reported issues with MSI on these IGPs. They're old, rarely available, and MSI doesn't provide such huge advantages on them. Just disable.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=87361 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=74492 Fixes: fa8c9ac72fe ("drm/nv4c/mc: nv4x igp's have a different msi rearm register") Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/gpu/drm/nouveau/core/subdev/mc/nv4c.c | 8 -------- 1 file changed, 8 deletions(-)
--- a/drivers/gpu/drm/nouveau/core/subdev/mc/nv4c.c +++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nv4c.c @@ -24,13 +24,6 @@ #include "nv04.h" -static void -nv4c_mc_msi_rearm(struct nouveau_mc *pmc) -{ - struct nv04_mc_priv *priv = (void *)pmc; - nv_wr08(priv, 0x088050, 0xff); -} - struct nouveau_oclass * nv4c_mc_oclass = &(struct nouveau_mc_oclass) { .base.handle = NV_SUBDEV(MC, 0x4c), @@ -41,5 +34,4 @@ nv4c_mc_oclass = &(struct nouveau_mc_ocl .fini = _nouveau_mc_fini, }, .intr = nv04_mc_intr, - .msi_rearm = nv4c_mc_msi_rearm, }.base;
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