[src/trunk]: src/sys/external/bsd/drm2/dist/drm/i915 Move hint setting nearer...

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/857baaeea787
branches:  trunk
changeset: 366184:857baaeea787
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Mon Aug 27 13:43:22 2018 +0000

description:
Move hint setting nearer to uvm_map for clarity.  CTASSERT page size.

Elsewhere this code says 4096, rather than PAGE_SIZE.  PAGE_SIZE is
the smallest unit that uvm_map accepts, so it had better match.

diffstat:

 sys/external/bsd/drm2/dist/drm/i915/i915_gem_render_state.c |  8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diffs (36 lines):

diff -r a19cd87bad31 -r 857baaeea787 sys/external/bsd/drm2/dist/drm/i915/i915_gem_render_state.c
--- a/sys/external/bsd/drm2/dist/drm/i915/i915_gem_render_state.c       Mon Aug 27 13:43:12 2018 +0000
+++ b/sys/external/bsd/drm2/dist/drm/i915/i915_gem_render_state.c       Mon Aug 27 13:43:22 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: i915_gem_render_state.c,v 1.6 2018/08/27 13:43:12 riastradh Exp $      */
+/*     $NetBSD: i915_gem_render_state.c,v 1.7 2018/08/27 13:43:22 riastradh Exp $      */
 
 /*
  * Copyright © 2014 Intel Corporation
@@ -28,7 +28,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: i915_gem_render_state.c,v 1.6 2018/08/27 13:43:12 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: i915_gem_render_state.c,v 1.7 2018/08/27 13:43:22 riastradh Exp $");
 
 #include "i915_drv.h"
 #include "intel_renderstate.h"
@@ -101,7 +101,7 @@
        const struct intel_renderstate_rodata *rodata = so->rodata;
        unsigned int i = 0, reloc_index = 0;
 #ifdef __NetBSD__
-       vaddr_t kva = 0;        /* hint */
+       vaddr_t kva;
 #else
        struct page *page;
 #endif
@@ -113,6 +113,8 @@
                return ret;
 
 #ifdef __NetBSD__
+       CTASSERT(PAGE_SIZE == 4096);
+       kva = 0;                /* hint */
        /* XXX errno NetBSD->Linux */
        ret = -uvm_map(kernel_map, &kva, PAGE_SIZE, so->obj->base.filp, 0,
            sizeof(*d), UVM_MAPFLAG(UVM_PROT_W, UVM_PROT_W, UVM_INH_NONE,