diff options
Diffstat (limited to 'src/gallium/drivers/nouveau/nouveau_screen.c')
| -rw-r--r-- | src/gallium/drivers/nouveau/nouveau_screen.c | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/src/gallium/drivers/nouveau/nouveau_screen.c b/src/gallium/drivers/nouveau/nouveau_screen.c new file mode 100644 index 00000000000..e4cf91c005c --- /dev/null +++ b/src/gallium/drivers/nouveau/nouveau_screen.c @@ -0,0 +1,243 @@ +#include <pipe/p_defines.h> +#include <pipe/p_screen.h> +#include <pipe/p_state.h> + +#include <util/u_memory.h> + +#include <errno.h> + +#include "nouveau/nouveau_bo.h" +#include "nouveau_winsys.h" +#include "nouveau_screen.h" + +static const char * +nouveau_screen_get_name(struct pipe_screen *pscreen) +{ + struct nouveau_device *dev = nouveau_screen(pscreen)->device; + static char buffer[128]; + + snprintf(buffer, sizeof(buffer), "NV%02X", dev->chipset); + return buffer; +} + +static const char * +nouveau_screen_get_vendor(struct pipe_screen *pscreen) +{ + return "nouveau"; +} + +static struct pipe_buffer * +nouveau_screen_bo_skel(struct pipe_screen *pscreen, struct nouveau_bo *bo, + unsigned alignment, unsigned usage, unsigned size) +{ + struct pipe_buffer *pb; + + pb = CALLOC(1, sizeof(struct pipe_buffer)+sizeof(struct nouveau_bo *)); + if (!pb) { + nouveau_bo_ref(NULL, &bo); + return NULL; + } + + pipe_reference_init(&pb->reference, 1); + pb->screen = pscreen; + pb->alignment = alignment; + pb->usage = usage; + pb->size = size; + *(struct nouveau_bo **)(pb + 1) = bo; + return pb; +} + +static struct pipe_buffer * +nouveau_screen_bo_new(struct pipe_screen *pscreen, unsigned alignment, + unsigned usage, unsigned size) +{ + struct nouveau_device *dev = nouveau_screen(pscreen)->device; + struct nouveau_bo *bo = NULL; + uint32_t flags = NOUVEAU_BO_MAP; + int ret; + + if (usage & NOUVEAU_BUFFER_USAGE_TRANSFER) + flags |= NOUVEAU_BO_GART; + else + if (usage & PIPE_BUFFER_USAGE_VERTEX) { + if (pscreen->get_param(pscreen, NOUVEAU_CAP_HW_VTXBUF)) + flags |= NOUVEAU_BO_GART; + } else + if (usage & PIPE_BUFFER_USAGE_INDEX) { + if (pscreen->get_param(pscreen, NOUVEAU_CAP_HW_IDXBUF)) + 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; + + if (dev->chipset == 0x50 || dev->chipset >= 0x80) { + flags |= NOUVEAU_BO_TILED; + if (usage & NOUVEAU_BUFFER_USAGE_ZETA) + flags |= NOUVEAU_BO_ZTILE; + } + } + + ret = nouveau_bo_new(dev, flags, alignment, size, &bo); + if (ret) + return NULL; + + return nouveau_screen_bo_skel(pscreen, bo, alignment, usage, size); +} + +static struct pipe_buffer * +nouveau_screen_bo_user(struct pipe_screen *pscreen, void *ptr, unsigned bytes) +{ + struct nouveau_device *dev = nouveau_screen(pscreen)->device; + struct nouveau_bo *bo = NULL; + int ret; + + ret = nouveau_bo_user(dev, ptr, bytes, &bo); + if (ret) + return NULL; + + return nouveau_screen_bo_skel(pscreen, bo, 0, 0, bytes); +} + +static inline uint32_t +nouveau_screen_map_flags(unsigned pipe) +{ + uint32_t flags = 0; + + if (pipe & PIPE_BUFFER_USAGE_CPU_READ) + flags |= NOUVEAU_BO_RD; + if (pipe & PIPE_BUFFER_USAGE_CPU_WRITE) + flags |= NOUVEAU_BO_WR; + if (pipe & PIPE_BUFFER_USAGE_DISCARD) + flags |= NOUVEAU_BO_INVAL; + if (pipe & PIPE_BUFFER_USAGE_DONTBLOCK) + flags |= NOUVEAU_BO_NOWAIT; + else + if (pipe & 0 /*PIPE_BUFFER_USAGE_UNSYNCHRONIZED*/) + flags |= NOUVEAU_BO_NOSYNC; + + return flags; +} + +static void * +nouveau_screen_bo_map(struct pipe_screen *pscreen, struct pipe_buffer *pb, + unsigned usage) +{ + struct nouveau_bo *bo = nouveau_bo(pb); + int ret; + + ret = nouveau_bo_map(bo, nouveau_screen_map_flags(usage)); + if (ret) { + debug_printf("map failed: %d\n", ret); + return NULL; + } + + return bo->map; +} + +static void * +nouveau_screen_bo_map_range(struct pipe_screen *pscreen, struct pipe_buffer *pb, + unsigned offset, unsigned length, unsigned usage) +{ + struct nouveau_bo *bo = nouveau_bo(pb); + uint32_t flags = nouveau_screen_map_flags(usage); + int ret; + + ret = nouveau_bo_map_range(bo, offset, length, flags); + if (ret) { + if (!(flags & NOUVEAU_BO_NOWAIT) || ret != -EBUSY) + debug_printf("map_range failed: %d\n", ret); + return NULL; + } + + return (char *)bo->map - offset; /* why gallium? why? */ +} + +static void +nouveau_screen_bo_map_flush(struct pipe_screen *pscreen, struct pipe_buffer *pb, + unsigned offset, unsigned length) +{ + struct nouveau_bo *bo = nouveau_bo(pb); + + nouveau_bo_map_flush(bo, offset, length); +} + +static void +nouveau_screen_bo_unmap(struct pipe_screen *pscreen, struct pipe_buffer *pb) +{ + struct nouveau_bo *bo = nouveau_bo(pb); + + nouveau_bo_unmap(bo); +} + +static void +nouveau_screen_bo_del(struct pipe_buffer *pb) +{ + struct nouveau_bo *bo = nouveau_bo(pb); + + nouveau_bo_ref(NULL, &bo); + FREE(pb); +} + +static void +nouveau_screen_fence_ref(struct pipe_screen *pscreen, + struct pipe_fence_handle **ptr, + struct pipe_fence_handle *pfence) +{ + *ptr = pfence; +} + +static int +nouveau_screen_fence_signalled(struct pipe_screen *screen, + struct pipe_fence_handle *pfence, + unsigned flags) +{ + return 0; +} + +static int +nouveau_screen_fence_finish(struct pipe_screen *screen, + struct pipe_fence_handle *pfence, + unsigned flags) +{ + return 0; +} + +int +nouveau_screen_init(struct nouveau_screen *screen, struct nouveau_device *dev) +{ + struct pipe_screen *pscreen = &screen->base; + int ret; + + ret = nouveau_channel_alloc(dev, 0xbeef0201, 0xbeef0202, + &screen->channel); + if (ret) + return ret; + screen->device = dev; + + pscreen->get_name = nouveau_screen_get_name; + pscreen->get_vendor = nouveau_screen_get_vendor; + + pscreen->buffer_create = nouveau_screen_bo_new; + pscreen->user_buffer_create = nouveau_screen_bo_user; + pscreen->buffer_map = nouveau_screen_bo_map; + pscreen->buffer_map_range = nouveau_screen_bo_map_range; + pscreen->buffer_flush_mapped_range = nouveau_screen_bo_map_flush; + pscreen->buffer_unmap = nouveau_screen_bo_unmap; + pscreen->buffer_destroy = nouveau_screen_bo_del; + + pscreen->fence_reference = nouveau_screen_fence_ref; + pscreen->fence_signalled = nouveau_screen_fence_signalled; + pscreen->fence_finish = nouveau_screen_fence_finish; + + return 0; +} + +void +nouveau_screen_fini(struct nouveau_screen *screen) +{ +} + |