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nouveau: expose channel engine selection on kepler chipsets 

v2: Take Maarten Lankhorst's suggestion of nesting the struct to prevent
    sizeof() issues due to padding on older revisions.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
main
Ben Skeggs 2012-11-23 12:40:30 +10:00
parent 9e6f96a579
commit c41b494c47
4 changed files with 48 additions and 0 deletions
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28
nouveau/abi16.c
View File

@ -24,9 +24,11 @@
#include <stdlib.h>
#include <stdint.h>
#include <stddef.h>
#include "private.h"
int
abi16_chan_nv04(struct nouveau_object *obj)
{
@ -69,6 +71,32 @@ abi16_chan_nvc0(struct nouveau_object *obj)
return 0;
}
int
abi16_chan_nve0(struct nouveau_object *obj)
{
struct nouveau_device *dev = (struct nouveau_device *)obj->parent;
struct drm_nouveau_channel_alloc req = {};
struct nve0_fifo *nve0 = obj->data;
int ret;
if (obj->length > offsetof(struct nve0_fifo, engine)) {
req.fb_ctxdma_handle = 0xffffffff;
req.tt_ctxdma_handle = nve0->engine;
}
ret = drmCommandWriteRead(dev->fd, DRM_NOUVEAU_CHANNEL_ALLOC,
&req, sizeof(req));
if (ret)
return ret;
nve0->base.channel = req.channel;
nve0->base.pushbuf = req.pushbuf_domains;
nve0->notify = req.notifier_handle;
nve0->base.object->handle = req.channel;
nve0->base.object->length = sizeof(*nve0);
return 0;
}
int
abi16_engobj(struct nouveau_object *obj)
{

3
nouveau/nouveau.c
View File

@ -247,7 +247,10 @@ nouveau_object_new(struct nouveau_object *parent, uint64_t handle,
if (dev->chipset < 0xc0)
ret = abi16_chan_nv04(obj);
else
if (dev->chipset < 0xe0)
ret = abi16_chan_nvc0(obj);
else
ret = abi16_chan_nve0(obj);
}
break;
default:

16
nouveau/nouveau.h
View File

@ -41,6 +41,22 @@ struct nvc0_fifo {
uint32_t notify;
};
#define NVE0_FIFO_ENGINE_GR 0x00000001
#define NVE0_FIFO_ENGINE_VP 0x00000002
#define NVE0_FIFO_ENGINE_PPP 0x00000004
#define NVE0_FIFO_ENGINE_BSP 0x00000008
#define NVE0_FIFO_ENGINE_CE0 0x00000010
#define NVE0_FIFO_ENGINE_CE1 0x00000020
#define NVE0_FIFO_ENGINE_ENC 0x00000040
struct nve0_fifo {
struct {
struct nouveau_fifo base;
uint32_t notify;
};
uint32_t engine;
};
struct nv04_notify {
struct nouveau_object *object;
uint32_t offset;

1
nouveau/private.h
View File

@ -113,6 +113,7 @@ nouveau_device_open_existing(struct nouveau_device **, int, int, drm_context_t);
/* abi16.c */
int abi16_chan_nv04(struct nouveau_object *);
int abi16_chan_nvc0(struct nouveau_object *);
int abi16_chan_nve0(struct nouveau_object *);
int abi16_engobj(struct nouveau_object *);
int abi16_ntfy(struct nouveau_object *);
void abi16_bo_info(struct nouveau_bo *, struct drm_nouveau_gem_info *);