1 files changed, 346 insertions, 0 deletions

diff --git a/src/gallium/winsys/drm/nouveau/nouveau_context.c b/src/gallium/winsys/drm/nouveau/nouveau_context.c
new file mode 100644
index 0000000000..74413c408f
--- /dev/null
+++ b/src/gallium/winsys/drm/nouveau/nouveau_context.c
@@ -0,0 +1,346 @@
+#include "main/glheader.h"
+#include "glapi/glthread.h"
+#include <GL/internal/glcore.h>
+#include "utils.h"
+
+#include "state_tracker/st_public.h"
+#include "state_tracker/st_context.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_context.h"
+#include "pipe/p_screen.h"
+
+#include "nouveau_context.h"
+#include "nouveau_dri.h"
+#include "nouveau_local.h"
+#include "nouveau_screen.h"
+#include "nouveau_winsys_pipe.h"
+
+#ifdef DEBUG
+static const struct dri_debug_control debug_control[] = {
+	{ "bo", DEBUG_BO },
+	{ NULL, 0 }
+};
+int __nouveau_debug = 0;
+#endif
+
+static void
+nouveau_channel_context_destroy(struct nouveau_channel_context *nvc)
+{
+	nouveau_grobj_free(&nvc->NvCtxSurf2D);
+	nouveau_grobj_free(&nvc->NvImageBlit);
+	nouveau_grobj_free(&nvc->NvGdiRect);
+	nouveau_grobj_free(&nvc->NvM2MF);
+	nouveau_grobj_free(&nvc->Nv2D);
+	nouveau_grobj_free(&nvc->NvSwzSurf);
+	nouveau_grobj_free(&nvc->NvSIFM);
+
+	nouveau_notifier_free(&nvc->sync_notifier);
+
+	nouveau_channel_free(&nvc->channel);
+
+	FREE(nvc);
+}
+
+static struct nouveau_channel_context *
+nouveau_channel_context_create(struct nouveau_device *dev)
+{
+	struct nouveau_channel_context *nvc;
+	int ret;
+
+	nvc = CALLOC_STRUCT(nouveau_channel_context);
+	if (!nvc)
+		return NULL;
+
+	if ((ret = nouveau_channel_alloc(dev, 0x8003d001, 0x8003d002,
+					 &nvc->channel))) {
+		NOUVEAU_ERR("Error creating GPU channel: %d\n", ret);
+		nouveau_channel_context_destroy(nvc);
+		return NULL;
+	}
+
+	nvc->next_handle = 0x80000000;
+
+	if ((ret = nouveau_notifier_alloc(nvc->channel, nvc->next_handle++, 1,
+					  &nvc->sync_notifier))) {
+		NOUVEAU_ERR("Error creating channel sync notifier: %d\n", ret);
+		nouveau_channel_context_destroy(nvc);
+		return NULL;
+	}
+
+	switch (dev->chipset & 0xf0) {
+	case 0x50:
+	case 0x80:
+	case 0x90:
+		ret = nouveau_surface_channel_create_nv50(nvc);
+		break;
+	default:
+		ret = nouveau_surface_channel_create_nv04(nvc);
+		break;
+	}
+
+	if (ret) {
+		NOUVEAU_ERR("Error initialising surface objects: %d\n", ret);
+		nouveau_channel_context_destroy(nvc);
+		return NULL;
+	}
+
+	return nvc;
+}
+
+GLboolean
+nouveau_context_create(const __GLcontextModes *glVis,
+		       __DRIcontextPrivate *driContextPriv,
+		       void *sharedContextPrivate)
+{
+	__DRIscreenPrivate *driScrnPriv = driContextPriv->driScreenPriv;
+	struct nouveau_screen  *nv_screen = driScrnPriv->private;
+	struct nouveau_context *nv = CALLOC_STRUCT(nouveau_context);
+	struct pipe_context *pipe = NULL;
+	struct st_context *st_share = NULL;
+	struct nouveau_channel_context *nvc = NULL;
+	struct nouveau_device *dev = nv_screen->device;
+	int i;
+
+	if (sharedContextPrivate) {
+		st_share = ((struct nouveau_context *)sharedContextPrivate)->st;
+	}
+
+	switch (dev->chipset & 0xf0) {
+	case 0x10:
+	case 0x20:
+		/* NV10 */
+	case 0x30:
+		/* NV30 */
+	case 0x40:
+	case 0x60:
+		/* NV40 */
+	case 0x50:
+	case 0x80:
+	case 0x90:
+		/* G80 */
+		break;
+	default:
+		NOUVEAU_ERR("Unsupported chipset: NV%02x\n", dev->chipset);
+		return GL_FALSE;
+	}
+
+	driContextPriv->driverPrivate = (void *)nv;
+	nv->nv_screen  = nv_screen;
+	nv->dri_screen = driScrnPriv;
+
+	{
+		struct nouveau_device_priv *nvdev = nouveau_device(dev);
+
+		nvdev->ctx  = driContextPriv->hHWContext;
+		nvdev->lock = (drmLock *)&driScrnPriv->pSAREA->lock;
+	}
+
+	driParseConfigFiles(&nv->dri_option_cache, &nv_screen->option_cache,
+			    nv->dri_screen->myNum, "nouveau");
+#ifdef DEBUG
+	__nouveau_debug = driParseDebugString(getenv("NOUVEAU_DEBUG"),
+					      debug_control);
+#endif
+
+	/*XXX: Hack up a fake region and buffer object for front buffer.
+	 *     This will go away with TTM, replaced with a simple reference
+	 *     of the front buffer handle passed to us by the DDX.
+	 */
+	{
+		struct pipe_surface *fb_surf;
+		struct nouveau_pipe_buffer *fb_buf;
+		struct nouveau_bo_priv *fb_bo;
+
+		fb_bo = calloc(1, sizeof(struct nouveau_bo_priv));
+		fb_bo->drm.offset = nv_screen->front_offset;
+		fb_bo->drm.flags = NOUVEAU_MEM_FB;
+		fb_bo->drm.size = nv_screen->front_pitch * 
+				  nv_screen->front_height;
+		fb_bo->refcount = 1;
+		fb_bo->base.flags = NOUVEAU_BO_PIN | NOUVEAU_BO_VRAM;
+		fb_bo->base.offset = fb_bo->drm.offset;
+		fb_bo->base.handle = (unsigned long)fb_bo;
+		fb_bo->base.size = fb_bo->drm.size;
+		fb_bo->base.device = nv_screen->device;
+
+		fb_buf = calloc(1, sizeof(struct nouveau_pipe_buffer));
+		fb_buf->bo = &fb_bo->base;
+
+		fb_surf = calloc(1, sizeof(struct pipe_surface));
+		if (nv_screen->front_cpp == 2)
+			fb_surf->format = PIPE_FORMAT_R5G6B5_UNORM;
+		else
+			fb_surf->format = PIPE_FORMAT_A8R8G8B8_UNORM;
+		pf_get_block(fb_surf->format, &fb_surf->block);
+		fb_surf->width = nv_screen->front_pitch / nv_screen->front_cpp;
+		fb_surf->height = nv_screen->front_height;
+		fb_surf->stride = fb_surf->width * fb_surf->block.size;
+		fb_surf->refcount = 1;
+		fb_surf->buffer = &fb_buf->base;
+
+		nv->frontbuffer = fb_surf;
+	}
+
+	/* Attempt to share a single channel between multiple contexts from
+	 * a single process.
+	 */
+	nvc = nv_screen->nvc;
+	if (!nvc && st_share) {
+		struct nouveau_context *snv = st_share->pipe->priv;
+		if (snv) {
+			nvc = snv->nvc;
+		}
+	}
+
+	/*XXX: temporary - disable multi-context/single-channel on pre-NV4x */
+	switch (dev->chipset & 0xf0) {
+	case 0x40:
+	case 0x60:
+		/* NV40 class */
+	case 0x50:
+	case 0x80:
+	case 0x90:
+		/* G80 class */
+		break;
+	default:
+		nvc = NULL;
+		break;
+	}
+
+	if (!nvc) {
+		nvc = nouveau_channel_context_create(dev);
+		if (!nvc) {
+			NOUVEAU_ERR("Failed initialising GPU context\n");
+			return GL_FALSE;
+		}
+		nv_screen->nvc = nvc;
+	}
+
+	nvc->refcount++;
+	nv->nvc = nvc;
+
+	/* Find a free slot for a pipe context, allocate a new one if needed */
+	nv->pctx_id = -1;
+	for (i = 0; i < nvc->nr_pctx; i++) {
+		if (nvc->pctx[i] == NULL) {
+			nv->pctx_id = i;
+			break;
+		}
+	}
+
+	if (nv->pctx_id < 0) {
+		nv->pctx_id = nvc->nr_pctx++;
+		nvc->pctx =
+			realloc(nvc->pctx,
+				sizeof(struct pipe_context *) * nvc->nr_pctx);
+	}
+
+	/* Create pipe */
+	switch (dev->chipset & 0xf0) {
+	case 0x50:
+	case 0x80:
+	case 0x90:
+		if (nouveau_surface_init_nv50(nv))
+			return GL_FALSE;
+		break;
+	default:
+		if (nouveau_surface_init_nv04(nv))
+			return GL_FALSE;
+		break;
+	}
+
+	if (!getenv("NOUVEAU_FORCE_SOFTPIPE")) {
+		struct pipe_screen *pscreen;
+
+		pipe = nouveau_pipe_create(nv);
+		if (!pipe)
+			NOUVEAU_ERR("Couldn't create hw pipe\n");
+		pscreen = nvc->pscreen;
+
+		nv->cap.hw_vertex_buffer =
+			pscreen->get_param(pscreen, NOUVEAU_CAP_HW_VTXBUF);
+		nv->cap.hw_index_buffer =
+			pscreen->get_param(pscreen, NOUVEAU_CAP_HW_IDXBUF);
+	}
+
+	if (!pipe) {
+		NOUVEAU_MSG("Using softpipe\n");
+		pipe = nouveau_create_softpipe(nv);
+		if (!pipe) {
+			NOUVEAU_ERR("Error creating pipe, bailing\n");
+			return GL_FALSE;
+		}
+	}
+
+	pipe->priv = nv;
+	nv->st = st_create_context(pipe, glVis, st_share);
+	return GL_TRUE;
+}
+
+void
+nouveau_context_destroy(__DRIcontextPrivate *driContextPriv)
+{
+	struct nouveau_context *nv = driContextPriv->driverPrivate;
+	struct nouveau_channel_context *nvc = nv->nvc;
+
+	assert(nv);
+
+	st_finish(nv->st);
+	st_destroy_context(nv->st);
+
+	if (nv->pctx_id >= 0) {
+		nvc->pctx[nv->pctx_id] = NULL;
+		if (--nvc->refcount <= 0) {
+			nouveau_channel_context_destroy(nvc);
+			nv->nv_screen->nvc = NULL;
+		}
+	}
+
+	free(nv);
+}
+
+GLboolean
+nouveau_context_bind(__DRIcontextPrivate *driContextPriv,
+		     __DRIdrawablePrivate *driDrawPriv,
+		     __DRIdrawablePrivate *driReadPriv)
+{
+	struct nouveau_context *nv;
+	struct nouveau_framebuffer *draw, *read;
+
+	if (!driContextPriv) {
+		st_make_current(NULL, NULL, NULL);
+		return GL_TRUE;
+	}
+
+	nv = driContextPriv->driverPrivate;
+	draw = driDrawPriv->driverPrivate;
+	read = driReadPriv->driverPrivate;
+
+	st_make_current(nv->st, draw->stfb, read->stfb);
+
+	if ((nv->dri_drawable != driDrawPriv) ||
+	    (nv->last_stamp != driDrawPriv->lastStamp)) {
+		nv->dri_drawable = driDrawPriv;
+		st_resize_framebuffer(draw->stfb, driDrawPriv->w,
+				      driDrawPriv->h);
+		nv->last_stamp = driDrawPriv->lastStamp;
+	}
+
+	if (driDrawPriv != driReadPriv) {
+		st_resize_framebuffer(read->stfb, driReadPriv->w,
+				      driReadPriv->h);
+	}
+
+	return GL_TRUE;
+}
+
+GLboolean
+nouveau_context_unbind(__DRIcontextPrivate *driContextPriv)
+{
+	struct nouveau_context *nv = driContextPriv->driverPrivate;
+	(void)nv;
+
+	st_flush(nv->st, 0, NULL);
+	return GL_TRUE;
+}
+