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Simulate bus_space_read_8 with two bus_space_read_4 on 32-bit x86.

This commit is contained in:
riastradh 2018-08-27 16:15:34 +00:00
parent 33e7ea2ff1
commit 1d512dc35f
1 changed files with 9 additions and 2 deletions
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11
sys/external/bsd/drm2/dist/drm/i915/i915_vgpu.c vendored
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@ -1,4 +1,4 @@
/* $NetBSD: i915_vgpu.c,v 1.3 2018/08/27 07:16:10 riastradh Exp $ */
/* $NetBSD: i915_vgpu.c,v 1.4 2018/08/27 16:15:34 riastradh Exp $ */
/*
* Copyright(c) 2011-2015 Intel Corporation. All rights reserved.
@ -24,7 +24,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: i915_vgpu.c,v 1.3 2018/08/27 07:16:10 riastradh Exp $");
__KERNEL_RCSID(0, "$NetBSD: i915_vgpu.c,v 1.4 2018/08/27 16:15:34 riastradh Exp $");
#include "intel_drv.h"
#include "i915_vgpu.h"
@ -75,8 +75,15 @@ void i915_check_vgpu(struct drm_device *dev)
return;
#ifdef __NetBSD__
# ifdef _LP64
magic = bus_space_read_8(dev_priv->regs_bst, dev_priv->regs_bsh,
vgtif_reg(magic));
# else
magic = bus_space_read_4(dev_priv->regs_bst, dev_priv->regs_bsh,
vgtif_reg(magic));
magic |= (uint64_t)bus_space_read_4(dev_priv->regs_bst,
dev_priv->regs_bsh, vgtif_reg(magic) + 4) << 32;
# endif
#else
magic = readq(dev_priv->regs + vgtif_reg(magic));
#endif