[src/trunk]: src/sys/external/bsd/drm2/dist/drm/i915 bring in old drm changes

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

details:   https://anonhg.NetBSD.org/src/rev/a6df736c4412
branches:  trunk
changeset: 834785:a6df736c4412
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Mon Aug 27 06:07:58 2018 +0000

description:
bring in old drm changes
panic(XXX) out parts that need attention


Author: coypu <coypu%sdf.org@localhost>
Committer: Taylor R Campbell <riastradh%NetBSD.org@localhost>

diffstat:

 sys/external/bsd/drm2/dist/drm/i915/i915_gem.c         |  24 +++++++++++++++--
 sys/external/bsd/drm2/dist/drm/i915/i915_gem_context.c |  10 ++++++-
 2 files changed, 29 insertions(+), 5 deletions(-)

diffs (129 lines):

diff -r eb160e554af5 -r a6df736c4412 sys/external/bsd/drm2/dist/drm/i915/i915_gem.c
--- a/sys/external/bsd/drm2/dist/drm/i915/i915_gem.c    Mon Aug 27 06:07:44 2018 +0000
+++ b/sys/external/bsd/drm2/dist/drm/i915/i915_gem.c    Mon Aug 27 06:07:58 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: i915_gem.c,v 1.36 2018/08/27 04:58:23 riastradh Exp $  */
+/*     $NetBSD: i915_gem.c,v 1.37 2018/08/27 06:07:58 riastradh Exp $  */
 
 /*
  * Copyright © 2008-2015 Intel Corporation
@@ -28,7 +28,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: i915_gem.c,v 1.36 2018/08/27 04:58:23 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: i915_gem.c,v 1.37 2018/08/27 06:07:58 riastradh Exp $");
 
 #ifdef __NetBSD__
 #if 0                          /* XXX uvmhist option?  */
@@ -1945,8 +1945,11 @@
        if (args->flags & ~(I915_MMAP_WC))
                return -EINVAL;
 
+#if 0
+       /* XXX cpu_has_pat == CPUID_PAT, do we care to do this check */
        if (args->flags & I915_MMAP_WC && !cpu_has_pat)
                return -ENODEV;
+#endif
 
        obj = drm_gem_object_lookup(dev, file, args->handle);
        if (obj == NULL)
@@ -2602,6 +2605,9 @@
 static void
 i915_gem_object_invalidate(struct drm_i915_gem_object *obj)
 {
+#ifdef __NetBSD__
+       panic("XXX");
+#else
        struct address_space *mapping;
 
        switch (obj->madv) {
@@ -2616,6 +2622,7 @@
 
        mapping = file_inode(obj->base.filp)->i_mapping,
        invalidate_mapping_pages(mapping, 0, (loff_t)-1);
+#endif
 }
 
 #ifdef __NetBSD__
@@ -5034,6 +5041,9 @@
 
 static bool discard_backing_storage(struct drm_i915_gem_object *obj)
 {
+#ifdef __NetBSD__
+       panic("XXX");
+#else
        /* If we are the last user of the backing storage (be it shmemfs
         * pages or stolen etc), we know that the pages are going to be
         * immediately released. In this case, we can then skip copying
@@ -5054,6 +5064,7 @@
         * freeing the object.
         */
        return atomic_long_read(&obj->base.filp->f_count) == 1;
+#endif
 }
 
 void i915_gem_free_object(struct drm_gem_object *gem_obj)
@@ -5644,8 +5655,11 @@
        dev_priv->mm.interruptible = true;
 
        i915_gem_shrinker_init(dev_priv);
-
+#ifdef __NetBSD__
+       linux_mutex_init(&dev_priv->fb_tracking.lock);
+#else
        mutex_init(&dev_priv->fb_tracking.lock);
+#endif
 }
 
 void i915_gem_release(struct drm_device *dev, struct drm_file *file)
@@ -5842,6 +5856,9 @@
 i915_gem_object_create_from_data(struct drm_device *dev,
                                 const void *data, size_t size)
 {
+#ifdef __NetBSD__
+       panic("XXX");
+#else
        struct drm_i915_gem_object *obj;
        struct sg_table *sg;
        size_t bytes;
@@ -5875,4 +5892,5 @@
 fail:
        drm_gem_object_unreference(&obj->base);
        return ERR_PTR(ret);
+#endif
 }
diff -r eb160e554af5 -r a6df736c4412 sys/external/bsd/drm2/dist/drm/i915/i915_gem_context.c
--- a/sys/external/bsd/drm2/dist/drm/i915/i915_gem_context.c    Mon Aug 27 06:07:44 2018 +0000
+++ b/sys/external/bsd/drm2/dist/drm/i915/i915_gem_context.c    Mon Aug 27 06:07:58 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: i915_gem_context.c,v 1.7 2018/08/27 04:58:23 riastradh Exp $   */
+/*     $NetBSD: i915_gem_context.c,v 1.8 2018/08/27 06:07:58 riastradh Exp $   */
 
 /*
  * Copyright © 2011-2012 Intel Corporation
@@ -88,7 +88,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: i915_gem_context.c,v 1.7 2018/08/27 04:58:23 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: i915_gem_context.c,v 1.8 2018/08/27 06:07:58 riastradh Exp $");
 
 #include <linux/err.h>
 #include <drm/drmP.h>
@@ -966,9 +966,15 @@
        case I915_CONTEXT_PARAM_BAN_PERIOD:
                if (args->size)
                        ret = -EINVAL;
+#ifdef __NetBSD__
+               else if (args->value < ctx->hang_stats.ban_period_seconds &&
+                        !DRM_SUSER())
+                       ret = -EPERM;
+#else
                else if (args->value < ctx->hang_stats.ban_period_seconds &&
                         !capable(CAP_SYS_ADMIN))
                        ret = -EPERM;
+#endif
                else
                        ctx->hang_stats.ban_period_seconds = args->value;
                break;