diff options
Diffstat (limited to 'src/gallium/winsys/drm/nouveau/common/nouveau_context.c')
| -rw-r--r-- | src/gallium/winsys/drm/nouveau/common/nouveau_context.c | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/src/gallium/winsys/drm/nouveau/common/nouveau_context.c b/src/gallium/winsys/drm/nouveau/common/nouveau_context.c new file mode 100644 index 0000000000..2f245046d4 --- /dev/null +++ b/src/gallium/winsys/drm/nouveau/common/nouveau_context.c @@ -0,0 +1,262 @@ +#include <pipe/p_defines.h> +#include <pipe/p_context.h> +#include <pipe/p_screen.h> +#include <util/u_memory.h> +#include "nouveau_context.h" +#include "nouveau_dri.h" +#include "nouveau_local.h" +#include "nouveau_screen.h" +#include "nouveau_winsys_pipe.h" + +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; +} + +int +nouveau_context_init(struct nouveau_screen *nv_screen, + drm_context_t hHWContext, drmLock *sarea_lock, + struct nouveau_context *nv_share, + struct nouveau_context *nv) +{ + struct pipe_context *pipe = NULL; + struct nouveau_channel_context *nvc = NULL; + struct nouveau_device *dev = nv_screen->device; + int i; + + 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 1; + } + + nv->nv_screen = nv_screen; + + { + struct nouveau_device_priv *nvdev = nouveau_device(dev); + + nvdev->ctx = hHWContext; + nvdev->lock = sarea_lock; + } + + /*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 && nv_share) + nvc = nv_share->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 1; + } + 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 1; + break; + default: + if (nouveau_surface_init_nv04(nv)) + return 1; + 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 1; + } + } + + pipe->priv = nv; + + return 0; +} + +void +nouveau_context_cleanup(struct nouveau_context *nv) +{ + struct nouveau_channel_context *nvc = nv->nvc; + + assert(nv); + + 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; + } + } + + /* XXX: Who cleans up the pipe? */ +} + |