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    SubjectRe: [PATCH] drm: fix compile failure by including <linux/swiotlb.h>
    Op 01-02-13 19:44, Chris Metcalf schreef:
    > On tile architecture (with "make allyesconfig") including
    > <linux/swiotlb.h> is required to call swiotlb_nr_tbl().
    I'll take your word for the need, since I lack the hardware to verify the failure. :-)
    Applying your patch doesn't seem to break compilation on x86 though, which is good enough for me.

    Acked-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
    > Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
    > ---
    > drivers/gpu/drm/nouveau/nouveau_bo.c | 1 +
    > drivers/gpu/drm/radeon/radeon_ttm.c | 1 +
    > 2 files changed, 2 insertions(+)
    >
    > diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
    > index 69d7b1d..1699a90 100644
    > --- a/drivers/gpu/drm/nouveau/nouveau_bo.c
    > +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
    > @@ -28,6 +28,7 @@
    > */
    >
    > #include <core/engine.h>
    > +#include <linux/swiotlb.h>
    >
    > #include <subdev/fb.h>
    > #include <subdev/vm.h>
    > diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
    > index 1d8ff2f..93f760e 100644
    > --- a/drivers/gpu/drm/radeon/radeon_ttm.c
    > +++ b/drivers/gpu/drm/radeon/radeon_ttm.c
    > @@ -38,6 +38,7 @@
    > #include <drm/radeon_drm.h>
    > #include <linux/seq_file.h>
    > #include <linux/slab.h>
    > +#include <linux/swiotlb.h>
    > #include "radeon_reg.h"
    > #include "radeon.h"
    >


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