April 8, 2024 at 8:04 PM, "Ville Syrjala" <ville.syrj...@linux.intel.com mailto:ville.syrj...@linux.intel.com?to=%22Ville%20Syrjala%22%20%3Cville.syrjala%40linux.intel.com%3E > wrote:
> > From: Ville Syrjälä <ville.syrj...@linux.intel.com> > > __iowmb() isn't available on most architectures. Make > its use optional so that the driver can be built on > other architectures with COMPILE_TEST=y. > > Cc: Jyri Sarha <jyri.sa...@iki.fi> > Cc: Tomi Valkeinen <tomi.valkei...@ideasonboard.com> > Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com> Acked-by: Jyri Sarha <jyri.sa...@iki.fi> Thanks, Jyri > --- > drivers/gpu/drm/tilcdc/tilcdc_regs.h | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/gpu/drm/tilcdc/tilcdc_regs.h > b/drivers/gpu/drm/tilcdc/tilcdc_regs.h > index f90e2dc3457c..44e4ada30fba 100644 > --- a/drivers/gpu/drm/tilcdc/tilcdc_regs.h > +++ b/drivers/gpu/drm/tilcdc/tilcdc_regs.h > @@ -125,7 +125,9 @@ static inline void tilcdc_write64(struct drm_device *dev, > u32 reg, u64 data) > #if defined(iowrite64) !defined(iowrite64_is_nonatomic) > iowrite64(data, addr); > #else > +#ifdef __iowmb > __iowmb(); > +#endif > /* This compiles to strd (=64-bit write) on ARM7 */ > *(volatile u64 __force *)addr = __cpu_to_le64(data); > #endif > -- > 2.43.2 >
