nouveau: rewrite winsys in terms of drm_api, support dri2 state tracker

drm_api is a set of hooks used by the dri2 state tracker, this wraps our
dri1 code around the same set of hooks.

Currently the dri2 build will produce nouveau_dri2.so which you'll need
to install as nouveau_dri.so if you wish to try it.  The dri2 state
tracker doesn't make it easy for a driver to support both paths in the
same binary.

1 files changed, 0 insertions, 251 deletions

diff --git a/src/gallium/winsys/drm/nouveau/common/nouveau_winsys_pipe.c b/src/gallium/winsys/drm/nouveau/common/nouveau_winsys_pipe.c
deleted file mode 100644
index 24bbd4516f..0000000000
--- a/src/gallium/winsys/drm/nouveau/common/nouveau_winsys_pipe.c
+++ /dev/null
@@ -1,251 +0,0 @@
-#include "pipe/internal/p_winsys_screen.h"
-#include <pipe/p_defines.h>
-#include <pipe/p_inlines.h>
-#include <util/u_memory.h>
-#include "nouveau_context.h"
-#include "nouveau_local.h"
-#include "nouveau_screen.h"
-#include "nouveau_winsys_pipe.h"
-
-static const char *
-nouveau_get_name(struct pipe_winsys *pws)
-{
-	return "Nouveau/DRI";
-}
-
-static uint32_t
-nouveau_flags_from_usage(struct nouveau_context *nv, unsigned usage)
-{
-	struct nouveau_device *dev = nv->nv_screen->device;
-	uint32_t flags = NOUVEAU_BO_LOCAL;
-
-	if (usage & NOUVEAU_BUFFER_USAGE_TRANSFER)
-		flags |= NOUVEAU_BO_GART;
-
-	if (usage & PIPE_BUFFER_USAGE_PIXEL) {
-		if (usage & NOUVEAU_BUFFER_USAGE_TEXTURE)
-			flags |= NOUVEAU_BO_GART;
-		if (!(usage & PIPE_BUFFER_USAGE_CPU_READ_WRITE))
-			flags |= NOUVEAU_BO_VRAM;
-
-		switch (dev->chipset & 0xf0) {
-		case 0x50:
-		case 0x80:
-		case 0x90:
-			flags |= NOUVEAU_BO_TILED;
-			if (usage & NOUVEAU_BUFFER_USAGE_ZETA)
-				flags |= NOUVEAU_BO_ZTILE;
-			break;
-		default:
-			break;
-		}
-	}
-
-	if (usage & PIPE_BUFFER_USAGE_VERTEX) {
-		if (nv->cap.hw_vertex_buffer)
-			flags |= NOUVEAU_BO_GART;
-	}
-
-	if (usage & PIPE_BUFFER_USAGE_INDEX) {
-		if (nv->cap.hw_index_buffer)
-			flags |= NOUVEAU_BO_GART;
-	}
-
-	return flags;
-}
-
-static struct pipe_buffer *
-nouveau_pipe_bo_create(struct pipe_winsys *pws, unsigned alignment,
-		       unsigned usage, unsigned size)
-{
-	struct nouveau_pipe_winsys *nvpws = (struct nouveau_pipe_winsys *)pws;
-	struct nouveau_context *nv = nvpws->nv;
-	struct nouveau_device *dev = nv->nv_screen->device;
-	struct nouveau_pipe_buffer *nvbuf;
-	uint32_t flags;
-
-	nvbuf = CALLOC_STRUCT(nouveau_pipe_buffer);
-	if (!nvbuf)
-		return NULL;
-	pipe_reference_init(&nvbuf->base.reference, 1);
-	nvbuf->base.alignment = alignment;
-	nvbuf->base.usage = usage;
-	nvbuf->base.size = size;
-
-	flags = nouveau_flags_from_usage(nv, usage);
-
-	if (nouveau_bo_new(dev, flags, alignment, size, &nvbuf->bo)) {
-		FREE(nvbuf);
-		return NULL;
-	}
-
-	return &nvbuf->base;
-}
-
-static struct pipe_buffer *
-nouveau_pipe_bo_user_create(struct pipe_winsys *pws, void *ptr, unsigned bytes)
-{
-	struct nouveau_pipe_winsys *nvpws = (struct nouveau_pipe_winsys *)pws;
-	struct nouveau_device *dev = nvpws->nv->nv_screen->device;
-	struct nouveau_pipe_buffer *nvbuf;
-
-	nvbuf = CALLOC_STRUCT(nouveau_pipe_buffer);
-	if (!nvbuf)
-		return NULL;
-	pipe_reference_init(&nvbuf->base.reference, 1);
-	nvbuf->base.size = bytes;
-
-	if (nouveau_bo_user(dev, ptr, bytes, &nvbuf->bo)) {
-		FREE(nvbuf);
-		return NULL;
-	}
-
-	return &nvbuf->base;
-}
-
-static void
-nouveau_pipe_bo_del(struct pipe_buffer *buf)
-{
-	struct nouveau_pipe_buffer *nvbuf = nouveau_pipe_buffer(buf);
-
-	nouveau_bo_ref(NULL, &nvbuf->bo);
-	FREE(nvbuf);
-}
-
-static void *
-nouveau_pipe_bo_map(struct pipe_winsys *pws, struct pipe_buffer *buf,
-		    unsigned flags)
-{
-	struct nouveau_pipe_buffer *nvbuf = nouveau_pipe_buffer(buf);
-	uint32_t map_flags = 0;
-
-        if (flags & PIPE_BUFFER_USAGE_DONTBLOCK) {
-           /* Remove this when this code is modified to support DONTBLOCK 
-            */
-           return NULL;
-        }
-
-	if (flags & PIPE_BUFFER_USAGE_CPU_READ)
-		map_flags |= NOUVEAU_BO_RD;
-	if (flags & PIPE_BUFFER_USAGE_CPU_WRITE)
-		map_flags |= NOUVEAU_BO_WR;
-
-#if 0
-	if (flags & PIPE_BUFFER_USAGE_DISCARD &&
-	    !(flags & PIPE_BUFFER_USAGE_CPU_READ) &&
-	    nouveau_bo_busy(nvbuf->bo, map_flags)) {
-		struct nouveau_pipe_winsys *nvpws = (struct nouveau_pipe_winsys *)pws;
-		struct nouveau_context *nv = nvpws->nv;
-		struct nouveau_device *dev = nv->nv_screen->device;
-		struct nouveau_bo *rename;
-		uint32_t flags = nouveau_flags_from_usage(nv, buf->usage);
-
-		if (!nouveau_bo_new(dev, flags, buf->alignment, buf->size, &rename)) {
-			nouveau_bo_ref(NULL, &nvbuf->bo);
-			nvbuf->bo = rename;
-		}
-	}
-#endif
-
-	if (nouveau_bo_map(nvbuf->bo, map_flags))
-		return NULL;
-	return nvbuf->bo->map;
-}
-
-static void
-nouveau_pipe_bo_unmap(struct pipe_winsys *pws, struct pipe_buffer *buf)
-{
-	struct nouveau_pipe_buffer *nvbuf = nouveau_pipe_buffer(buf);
-
-	nouveau_bo_unmap(nvbuf->bo);
-}
-
-static void
-nouveau_pipe_fence_reference(struct pipe_winsys *ws,
-			     struct pipe_fence_handle **ptr,
-			     struct pipe_fence_handle *pfence)
-{
-	*ptr = pfence;
-}
-
-static int
-nouveau_pipe_fence_signalled(struct pipe_winsys *ws,
-			     struct pipe_fence_handle *pfence, unsigned flag)
-{
-	return 0;
-}
-
-static int
-nouveau_pipe_fence_finish(struct pipe_winsys *ws,
-			  struct pipe_fence_handle *pfence, unsigned flag)
-{
-	return 0;
-}
-
-struct pipe_surface *
-nouveau_surface_buffer_ref(struct nouveau_context *nv, struct pipe_buffer *pb,
-			   enum pipe_format format, int w, int h,
-			   unsigned pitch, struct pipe_texture **ppt)
-{
-	struct pipe_screen *pscreen = nv->nvc->pscreen;
-	struct pipe_texture tmpl, *pt;
-	struct pipe_surface *ps;
-
-	memset(&tmpl, 0, sizeof(tmpl));
-	tmpl.tex_usage = PIPE_TEXTURE_USAGE_DISPLAY_TARGET |
-			 NOUVEAU_TEXTURE_USAGE_LINEAR;
-	tmpl.target = PIPE_TEXTURE_2D;
-	tmpl.width[0] = w;
-	tmpl.height[0] = h;
-	tmpl.depth[0] = 1;
-	tmpl.format = format;
-	pf_get_block(tmpl.format, &tmpl.block);
-	tmpl.nblocksx[0] = pf_get_nblocksx(&tmpl.block, w);
-	tmpl.nblocksy[0] = pf_get_nblocksy(&tmpl.block, h);
-
-	pt = pscreen->texture_blanket(pscreen, &tmpl, &pitch, pb);
-	if (!pt)
-		return NULL;
-
-	ps = pscreen->get_tex_surface(pscreen, pt, 0, 0, 0,
-				      PIPE_BUFFER_USAGE_GPU_WRITE);
-
-	*ppt = pt;
-	return ps;
-}
-
-static void
-nouveau_destroy(struct pipe_winsys *pws)
-{
-	FREE(pws);
-}
-
-struct pipe_winsys *
-nouveau_create_pipe_winsys(struct nouveau_context *nv)
-{
-	struct nouveau_pipe_winsys *nvpws;
-	struct pipe_winsys *pws;
-
-	nvpws = CALLOC_STRUCT(nouveau_pipe_winsys);
-	if (!nvpws)
-		return NULL;
-	nvpws->nv = nv;
-	pws = &nvpws->pws;
-
-	pws->flush_frontbuffer = nouveau_flush_frontbuffer;
-
-	pws->buffer_create = nouveau_pipe_bo_create;
-	pws->buffer_destroy = nouveau_pipe_bo_del;
-	pws->user_buffer_create = nouveau_pipe_bo_user_create;
-	pws->buffer_map = nouveau_pipe_bo_map;
-	pws->buffer_unmap = nouveau_pipe_bo_unmap;
-
-	pws->fence_reference = nouveau_pipe_fence_reference;
-	pws->fence_signalled = nouveau_pipe_fence_signalled;
-	pws->fence_finish = nouveau_pipe_fence_finish;
-
-	pws->get_name = nouveau_get_name;
-	pws->destroy = nouveau_destroy;
-
-	return &nvpws->pws;
-}