[Nouveau] [libdrm v3 12/14] nouveau: add support for newer kernel interfaces
Ben Skeggs
skeggsb at gmail.com
Wed Dec 16 15:21:08 PST 2015
From: Ben Skeggs <bskeggs at redhat.com>
v2.
- leave client-provided pointer unmodified on sclass_get() failure
Signed-off-by: Ben Skeggs <bskeggs at redhat.com>
---
nouveau/abi16.c | 3 +-
nouveau/nouveau.c | 159 +++++++++++++++++++++++++++++++++++++++++++++++++++---
2 files changed, 155 insertions(+), 7 deletions(-)
diff --git a/nouveau/abi16.c b/nouveau/abi16.c
index 46350b1..ee38c0c 100644
--- a/nouveau/abi16.c
+++ b/nouveau/abi16.c
@@ -244,7 +244,8 @@ abi16_object(struct nouveau_object *obj, int (**func)(struct nouveau_object *))
/* nouveau_object::length is (ab)used to determine whether the
* object is a legacy object (!=0), or a real NVIF object.
*/
- if ((parent->length != 0 && parent->oclass == NOUVEAU_DEVICE_CLASS)) {
+ if ((parent->length != 0 && parent->oclass == NOUVEAU_DEVICE_CLASS) ||
+ (parent->length == 0 && parent->oclass == NV_DEVICE)) {
if (obj->oclass == NOUVEAU_FIFO_CHANNEL_CLASS) {
struct nouveau_device *dev = (void *)parent;
if (dev->chipset < 0xc0)
diff --git a/nouveau/nouveau.c b/nouveau/nouveau.c
index fef338b..e113a8f 100644
--- a/nouveau/nouveau.c
+++ b/nouveau/nouveau.c
@@ -47,6 +47,7 @@
#include "nvif/class.h"
#include "nvif/cl0080.h"
+#include "nvif/ioctl.h"
#include "nvif/unpack.h"
#ifdef DEBUG
@@ -63,11 +64,67 @@ debug_init(char *args)
}
#endif
+static int
+nouveau_object_ioctl(struct nouveau_object *obj, void *data, uint32_t size)
+{
+ struct nouveau_drm *drm = nouveau_drm(obj);
+ union {
+ struct nvif_ioctl_v0 v0;
+ } *args = data;
+ uint32_t argc = size;
+ int ret = -ENOSYS;
+
+ if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) {
+ if (!obj->length) {
+ if (obj != &drm->client)
+ args->v0.object = (unsigned long)(void *)obj;
+ else
+ args->v0.object = 0;
+ args->v0.owner = NVIF_IOCTL_V0_OWNER_ANY;
+ args->v0.route = 0x00;
+ } else {
+ args->v0.route = 0xff;
+ args->v0.token = obj->handle;
+ }
+ } else
+ return ret;
+
+ return drmCommandWriteRead(drm->fd, DRM_NOUVEAU_NVIF, args, argc);
+}
+
int
nouveau_object_mthd(struct nouveau_object *obj,
uint32_t mthd, void *data, uint32_t size)
{
- return -ENODEV;
+ struct nouveau_drm *drm = nouveau_drm(obj);
+ struct {
+ struct nvif_ioctl_v0 ioctl;
+ struct nvif_ioctl_mthd_v0 mthd;
+ } *args;
+ uint32_t argc = sizeof(*args) + size;
+ uint8_t stack[128];
+ int ret;
+
+ if (!drm->nvif)
+ return -ENOSYS;
+
+ if (argc > sizeof(stack)) {
+ if (!(args = malloc(argc)))
+ return -ENOMEM;
+ } else {
+ args = (void *)stack;
+ }
+ args->ioctl.version = 0;
+ args->ioctl.type = NVIF_IOCTL_V0_MTHD;
+ args->mthd.version = 0;
+ args->mthd.method = mthd;
+
+ memcpy(args->mthd.data, data, size);
+ ret = nouveau_object_ioctl(obj, args, argc);
+ memcpy(data, args->mthd.data, size);
+ if (args != (void *)stack)
+ free(args);
+ return ret;
}
void
@@ -81,7 +138,50 @@ int
nouveau_object_sclass_get(struct nouveau_object *obj,
struct nouveau_sclass **psclass)
{
- return abi16_sclass(obj, psclass);
+ struct nouveau_drm *drm = nouveau_drm(obj);
+ struct {
+ struct nvif_ioctl_v0 ioctl;
+ struct nvif_ioctl_sclass_v0 sclass;
+ } *args = NULL;
+ struct nouveau_sclass *sclass;
+ int ret, cnt = 0, i;
+ uint32_t size;
+
+ if (!drm->nvif)
+ return abi16_sclass(obj, psclass);
+
+ while (1) {
+ size = sizeof(*args) + cnt * sizeof(args->sclass.oclass[0]);
+ if (!(args = malloc(size)))
+ return -ENOMEM;
+ args->ioctl.version = 0;
+ args->ioctl.type = NVIF_IOCTL_V0_SCLASS;
+ args->sclass.version = 0;
+ args->sclass.count = cnt;
+
+ ret = nouveau_object_ioctl(obj, args, size);
+ if (ret == 0 && args->sclass.count <= cnt)
+ break;
+ cnt = args->sclass.count;
+ free(args);
+ if (ret != 0)
+ return ret;
+ }
+
+ if ((sclass = calloc(args->sclass.count, sizeof(*sclass)))) {
+ for (i = 0; i < args->sclass.count; i++) {
+ sclass[i].oclass = args->sclass.oclass[i].oclass;
+ sclass[i].minver = args->sclass.oclass[i].minver;
+ sclass[i].maxver = args->sclass.oclass[i].maxver;
+ }
+ *psclass = sclass;
+ ret = args->sclass.count;
+ } else {
+ ret = -ENOMEM;
+ }
+
+ free(args);
+ return ret;
}
int
@@ -114,12 +214,21 @@ nouveau_object_mclass(struct nouveau_object *obj,
static void
nouveau_object_fini(struct nouveau_object *obj)
{
+ struct {
+ struct nvif_ioctl_v0 ioctl;
+ struct nvif_ioctl_del del;
+ } args = {
+ .ioctl.type = NVIF_IOCTL_V0_DEL,
+ };
+
if (obj->data) {
abi16_delete(obj);
free(obj->data);
obj->data = NULL;
return;
}
+
+ nouveau_object_ioctl(obj, &args, sizeof(args));
}
static int
@@ -127,6 +236,12 @@ nouveau_object_init(struct nouveau_object *parent, uint32_t handle,
int32_t oclass, void *data, uint32_t size,
struct nouveau_object *obj)
{
+ struct nouveau_drm *drm = nouveau_drm(parent);
+ struct {
+ struct nvif_ioctl_v0 ioctl;
+ struct nvif_ioctl_new_v0 new;
+ } *args;
+ uint32_t argc = sizeof(*args) + size;
int (*func)(struct nouveau_object *);
int ret = -ENOSYS;
@@ -136,7 +251,22 @@ nouveau_object_init(struct nouveau_object *parent, uint32_t handle,
obj->length = 0;
obj->data = NULL;
- abi16_object(obj, &func);
+ if (!abi16_object(obj, &func) && drm->nvif) {
+ if (!(args = malloc(argc)))
+ return -ENOMEM;
+ args->ioctl.version = 0;
+ args->ioctl.type = NVIF_IOCTL_V0_NEW;
+ args->new.version = 0;
+ args->new.route = NVIF_IOCTL_V0_ROUTE_NVIF;
+ args->new.token = (unsigned long)(void *)obj;
+ args->new.object = (unsigned long)(void *)obj;
+ args->new.handle = handle;
+ args->new.oclass = oclass;
+ memcpy(args->new.data, data, size);
+ ret = nouveau_object_ioctl(parent, args, argc);
+ memcpy(data, args->new.data, size);
+ free(args);
+ } else
if (func) {
obj->length = size ? size : sizeof(struct nouveau_object *);
if (!(obj->data = malloc(obj->length)))
@@ -218,7 +348,7 @@ nouveau_drm_new(int fd, struct nouveau_drm **pdrm)
drm->version = (ver->version_major << 24) |
(ver->version_minor << 8) |
ver->version_patchlevel;
- drm->nvif = false;
+ drm->nvif = (drm->version >= 0x01000301);
drmFreeVersion(ver);
return 0;
}
@@ -238,9 +368,11 @@ int
nouveau_device_new(struct nouveau_object *parent, int32_t oclass,
void *data, uint32_t size, struct nouveau_device **pdev)
{
+ struct nv_device_info_v0 info = {};
union {
struct nv_device_v0 v0;
} *args = data;
+ uint32_t argc = size;
struct nouveau_drm *drm = nouveau_drm(parent);
struct nouveau_device_priv *nvdev;
struct nouveau_device *dev;
@@ -257,6 +389,22 @@ nouveau_device_new(struct nouveau_object *parent, int32_t oclass,
dev = *pdev = &nvdev->base;
dev->fd = -1;
+ if (drm->nvif) {
+ ret = nouveau_object_init(parent, 0, oclass, args, argc,
+ &dev->object);
+ if (ret)
+ goto done;
+
+ info.version = 0;
+
+ ret = nouveau_object_mthd(&dev->object, NV_DEVICE_V0_INFO,
+ &info, sizeof(info));
+ if (ret)
+ goto done;
+
+ nvdev->base.chipset = info.chipset;
+ nvdev->have_bo_usage = true;
+ } else
if (args->v0.device == ~0ULL) {
nvdev->base.object.parent = &drm->client;
nvdev->base.object.handle = ~0ULL;
@@ -333,8 +481,7 @@ nouveau_device_wrap(int fd, int close, struct nouveau_device **pdev)
nvdev = nouveau_device(*pdev);
nvdev->base.fd = drm->fd;
- nvdev->base.drm_version = drm->drm_version;
- nvdev->base.lib_version = drm->lib_version;
+ nvdev->base.drm_version = drm->version;
nvdev->close = close;
return 0;
}
--
2.6.4
More information about the Nouveau
mailing list