nv30, nv40: unify nv[34]0_vbo.c

The files are identical, except for swtnl support which is commented
out on nv30 and restart being initialized on nv30 to avoid a compiler
warning.

1 files changed, 563 insertions, 0 deletions

diff --git a/src/gallium/drivers/nvfx/nvfx_vbo.c b/src/gallium/drivers/nvfx/nvfx_vbo.c
new file mode 100644
index 0000000000..9d501ef1da
--- /dev/null
+++ b/src/gallium/drivers/nvfx/nvfx_vbo.c
@@ -0,0 +1,563 @@
+#include "pipe/p_context.h"
+#include "pipe/p_state.h"
+#include "util/u_inlines.h"
+#include "util/u_format.h"
+
+#include "nvfx_context.h"
+#include "nvfx_state.h"
+
+#include "nouveau/nouveau_channel.h"
+#include "nouveau/nouveau_pushbuf.h"
+#include "nouveau/nouveau_util.h"
+
+#define FORCE_SWTNL 0
+
+static INLINE int
+nvfx_vbo_format_to_hw(enum pipe_format pipe, unsigned *fmt, unsigned *ncomp)
+{
+	switch (pipe) {
+	case PIPE_FORMAT_R32_FLOAT:
+	case PIPE_FORMAT_R32G32_FLOAT:
+	case PIPE_FORMAT_R32G32B32_FLOAT:
+	case PIPE_FORMAT_R32G32B32A32_FLOAT:
+		*fmt = NV34TCL_VTXFMT_TYPE_FLOAT;
+		break;
+	case PIPE_FORMAT_R8_UNORM:
+	case PIPE_FORMAT_R8G8_UNORM:
+	case PIPE_FORMAT_R8G8B8_UNORM:
+	case PIPE_FORMAT_R8G8B8A8_UNORM:
+		*fmt = NV34TCL_VTXFMT_TYPE_UBYTE;
+		break;
+	case PIPE_FORMAT_R16_SSCALED:
+	case PIPE_FORMAT_R16G16_SSCALED:
+	case PIPE_FORMAT_R16G16B16_SSCALED:
+	case PIPE_FORMAT_R16G16B16A16_SSCALED:
+		*fmt = NV34TCL_VTXFMT_TYPE_USHORT;
+		break;
+	default:
+		NOUVEAU_ERR("Unknown format %s\n", util_format_name(pipe));
+		return 1;
+	}
+
+	switch (pipe) {
+	case PIPE_FORMAT_R8_UNORM:
+	case PIPE_FORMAT_R32_FLOAT:
+	case PIPE_FORMAT_R16_SSCALED:
+		*ncomp = 1;
+		break;
+	case PIPE_FORMAT_R8G8_UNORM:
+	case PIPE_FORMAT_R32G32_FLOAT:
+	case PIPE_FORMAT_R16G16_SSCALED:
+		*ncomp = 2;
+		break;
+	case PIPE_FORMAT_R8G8B8_UNORM:
+	case PIPE_FORMAT_R32G32B32_FLOAT:
+	case PIPE_FORMAT_R16G16B16_SSCALED:
+		*ncomp = 3;
+		break;
+	case PIPE_FORMAT_R8G8B8A8_UNORM:
+	case PIPE_FORMAT_R32G32B32A32_FLOAT:
+	case PIPE_FORMAT_R16G16B16A16_SSCALED:
+		*ncomp = 4;
+		break;
+	default:
+		NOUVEAU_ERR("Unknown format %s\n", util_format_name(pipe));
+		return 1;
+	}
+
+	return 0;
+}
+
+static boolean
+nvfx_vbo_set_idxbuf(struct nvfx_context *nvfx, struct pipe_buffer *ib,
+		    unsigned ib_size)
+{
+	struct pipe_screen *pscreen = &nvfx->screen->base.base;
+	unsigned type;
+
+	if (!ib) {
+		nvfx->idxbuf = NULL;
+		nvfx->idxbuf_format = 0xdeadbeef;
+		return FALSE;
+	}
+
+	if (!pscreen->get_param(pscreen, NOUVEAU_CAP_HW_IDXBUF) || ib_size == 1)
+		return FALSE;
+
+	switch (ib_size) {
+	case 2:
+		type = NV34TCL_IDXBUF_FORMAT_TYPE_U16;
+		break;
+	case 4:
+		type = NV34TCL_IDXBUF_FORMAT_TYPE_U32;
+		break;
+	default:
+		return FALSE;
+	}
+
+	if (ib != nvfx->idxbuf ||
+	    type != nvfx->idxbuf_format) {
+		nvfx->dirty |= NVFX_NEW_ARRAYS;
+		nvfx->idxbuf = ib;
+		nvfx->idxbuf_format = type;
+	}
+
+	return TRUE;
+}
+
+static boolean
+nvfx_vbo_static_attrib(struct nvfx_context *nvfx, struct nouveau_stateobj *so,
+		       int attrib, struct pipe_vertex_element *ve,
+		       struct pipe_vertex_buffer *vb)
+{
+	struct pipe_screen *pscreen = nvfx->pipe.screen;
+	struct nouveau_grobj *eng3d = nvfx->screen->eng3d;
+	unsigned type, ncomp;
+	void *map;
+
+	if (nvfx_vbo_format_to_hw(ve->src_format, &type, &ncomp))
+		return FALSE;
+
+	map  = pipe_buffer_map(pscreen, vb->buffer, PIPE_BUFFER_USAGE_CPU_READ);
+	map += vb->buffer_offset + ve->src_offset;
+
+	switch (type) {
+	case NV34TCL_VTXFMT_TYPE_FLOAT:
+	{
+		float *v = map;
+
+		switch (ncomp) {
+		case 4:
+			so_method(so, eng3d, NV34TCL_VTX_ATTR_4F_X(attrib), 4);
+			so_data  (so, fui(v[0]));
+			so_data  (so, fui(v[1]));
+			so_data  (so, fui(v[2]));
+			so_data  (so, fui(v[3]));
+			break;
+		case 3:
+			so_method(so, eng3d, NV34TCL_VTX_ATTR_3F_X(attrib), 3);
+			so_data  (so, fui(v[0]));
+			so_data  (so, fui(v[1]));
+			so_data  (so, fui(v[2]));
+			break;
+		case 2:
+			so_method(so, eng3d, NV34TCL_VTX_ATTR_2F_X(attrib), 2);
+			so_data  (so, fui(v[0]));
+			so_data  (so, fui(v[1]));
+			break;
+		case 1:
+			so_method(so, eng3d, NV34TCL_VTX_ATTR_1F(attrib), 1);
+			so_data  (so, fui(v[0]));
+			break;
+		default:
+			pipe_buffer_unmap(pscreen, vb->buffer);
+			return FALSE;
+		}
+	}
+		break;
+	default:
+		pipe_buffer_unmap(pscreen, vb->buffer);
+		return FALSE;
+	}
+
+	pipe_buffer_unmap(pscreen, vb->buffer);
+	return TRUE;
+}
+
+void
+nvfx_draw_arrays(struct pipe_context *pipe,
+		 unsigned mode, unsigned start, unsigned count)
+{
+	struct nvfx_context *nvfx = nvfx_context(pipe);
+	struct nvfx_screen *screen = nvfx->screen;
+	struct nouveau_channel *chan = screen->base.channel;
+	struct nouveau_grobj *eng3d = screen->eng3d;
+	unsigned restart = 0;
+
+	nvfx_vbo_set_idxbuf(nvfx, NULL, 0);
+	if (FORCE_SWTNL || !nvfx_state_validate(nvfx)) {
+		nvfx_draw_elements_swtnl(pipe, NULL, 0,
+                                           mode, start, count);
+                return;
+	}
+
+	while (count) {
+		unsigned vc, nr;
+
+		nvfx_state_emit(nvfx);
+
+		vc = nouveau_vbuf_split(AVAIL_RING(chan), 6, 256,
+					mode, start, count, &restart);
+		if (!vc) {
+			FIRE_RING(chan);
+			continue;
+		}
+
+		BEGIN_RING(chan, eng3d, NV34TCL_VERTEX_BEGIN_END, 1);
+		OUT_RING  (chan, nvgl_primitive(mode));
+
+		nr = (vc & 0xff);
+		if (nr) {
+			BEGIN_RING(chan, eng3d, NV34TCL_VB_VERTEX_BATCH, 1);
+			OUT_RING  (chan, ((nr - 1) << 24) | start);
+			start += nr;
+		}
+
+		nr = vc >> 8;
+		while (nr) {
+			unsigned push = nr > 2047 ? 2047 : nr;
+
+			nr -= push;
+
+			BEGIN_RING_NI(chan, eng3d, NV34TCL_VB_VERTEX_BATCH, push);
+			while (push--) {
+				OUT_RING(chan, ((0x100 - 1) << 24) | start);
+				start += 0x100;
+			}
+		}
+
+		BEGIN_RING(chan, eng3d, NV34TCL_VERTEX_BEGIN_END, 1);
+		OUT_RING  (chan, 0);
+
+		count -= vc;
+		start = restart;
+	}
+
+	pipe->flush(pipe, 0, NULL);
+}
+
+static INLINE void
+nvfx_draw_elements_u08(struct nvfx_context *nvfx, void *ib,
+		       unsigned mode, unsigned start, unsigned count)
+{
+	struct nvfx_screen *screen = nvfx->screen;
+	struct nouveau_channel *chan = screen->base.channel;
+	struct nouveau_grobj *eng3d = screen->eng3d;
+
+	while (count) {
+		uint8_t *elts = (uint8_t *)ib + start;
+		unsigned vc, push, restart = 0;
+
+		nvfx_state_emit(nvfx);
+
+		vc = nouveau_vbuf_split(AVAIL_RING(chan), 6, 2,
+					mode, start, count, &restart);
+		if (vc == 0) {
+			FIRE_RING(chan);
+			continue;
+		}
+		count -= vc;
+
+		BEGIN_RING(chan, eng3d, NV34TCL_VERTEX_BEGIN_END, 1);
+		OUT_RING  (chan, nvgl_primitive(mode));
+
+		if (vc & 1) {
+			BEGIN_RING(chan, eng3d, NV34TCL_VB_ELEMENT_U32, 1);
+			OUT_RING  (chan, elts[0]);
+			elts++; vc--;
+		}
+
+		while (vc) {
+			unsigned i;
+
+			push = MIN2(vc, 2047 * 2);
+
+			BEGIN_RING_NI(chan, eng3d, NV34TCL_VB_ELEMENT_U16, push >> 1);
+			for (i = 0; i < push; i+=2)
+				OUT_RING(chan, (elts[i+1] << 16) | elts[i]);
+
+			vc -= push;
+			elts += push;
+		}
+
+		BEGIN_RING(chan, eng3d, NV34TCL_VERTEX_BEGIN_END, 1);
+		OUT_RING  (chan, 0);
+
+		start = restart;
+	}
+}
+
+static INLINE void
+nvfx_draw_elements_u16(struct nvfx_context *nvfx, void *ib,
+		       unsigned mode, unsigned start, unsigned count)
+{
+	struct nvfx_screen *screen = nvfx->screen;
+	struct nouveau_channel *chan = screen->base.channel;
+	struct nouveau_grobj *eng3d = screen->eng3d;
+
+	while (count) {
+		uint16_t *elts = (uint16_t *)ib + start;
+		unsigned vc, push, restart = 0;
+
+		nvfx_state_emit(nvfx);
+
+		vc = nouveau_vbuf_split(AVAIL_RING(chan), 6, 2,
+					mode, start, count, &restart);
+		if (vc == 0) {
+			FIRE_RING(chan);
+			continue;
+		}
+		count -= vc;
+
+		BEGIN_RING(chan, eng3d, NV34TCL_VERTEX_BEGIN_END, 1);
+		OUT_RING  (chan, nvgl_primitive(mode));
+
+		if (vc & 1) {
+			BEGIN_RING(chan, eng3d, NV34TCL_VB_ELEMENT_U32, 1);
+			OUT_RING  (chan, elts[0]);
+			elts++; vc--;
+		}
+
+		while (vc) {
+			unsigned i;
+
+			push = MIN2(vc, 2047 * 2);
+
+			BEGIN_RING_NI(chan, eng3d, NV34TCL_VB_ELEMENT_U16, push >> 1);
+			for (i = 0; i < push; i+=2)
+				OUT_RING(chan, (elts[i+1] << 16) | elts[i]);
+
+			vc -= push;
+			elts += push;
+		}
+
+		BEGIN_RING(chan, eng3d, NV34TCL_VERTEX_BEGIN_END, 1);
+		OUT_RING  (chan, 0);
+
+		start = restart;
+	}
+}
+
+static INLINE void
+nvfx_draw_elements_u32(struct nvfx_context *nvfx, void *ib,
+		       unsigned mode, unsigned start, unsigned count)
+{
+	struct nvfx_screen *screen = nvfx->screen;
+	struct nouveau_channel *chan = screen->base.channel;
+	struct nouveau_grobj *eng3d = screen->eng3d;
+
+	while (count) {
+		uint32_t *elts = (uint32_t *)ib + start;
+		unsigned vc, push, restart = 0;
+
+		nvfx_state_emit(nvfx);
+
+		vc = nouveau_vbuf_split(AVAIL_RING(chan), 5, 1,
+					mode, start, count, &restart);
+		if (vc == 0) {
+			FIRE_RING(chan);
+			continue;
+		}
+		count -= vc;
+
+		BEGIN_RING(chan, eng3d, NV34TCL_VERTEX_BEGIN_END, 1);
+		OUT_RING  (chan, nvgl_primitive(mode));
+
+		while (vc) {
+			push = MIN2(vc, 2047);
+
+			BEGIN_RING_NI(chan, eng3d, NV34TCL_VB_ELEMENT_U32, push);
+			OUT_RINGp    (chan, elts, push);
+
+			vc -= push;
+			elts += push;
+		}
+
+		BEGIN_RING(chan, eng3d, NV34TCL_VERTEX_BEGIN_END, 1);
+		OUT_RING  (chan, 0);
+
+		start = restart;
+	}
+}
+
+static void
+nvfx_draw_elements_inline(struct pipe_context *pipe,
+			  struct pipe_buffer *ib, unsigned ib_size,
+			  unsigned mode, unsigned start, unsigned count)
+{
+	struct nvfx_context *nvfx = nvfx_context(pipe);
+	struct pipe_screen *pscreen = pipe->screen;
+	void *map;
+
+	map = pipe_buffer_map(pscreen, ib, PIPE_BUFFER_USAGE_CPU_READ);
+	if (!ib) {
+		NOUVEAU_ERR("failed mapping ib\n");
+		return;
+	}
+
+	switch (ib_size) {
+	case 1:
+		nvfx_draw_elements_u08(nvfx, map, mode, start, count);
+		break;
+	case 2:
+		nvfx_draw_elements_u16(nvfx, map, mode, start, count);
+		break;
+	case 4:
+		nvfx_draw_elements_u32(nvfx, map, mode, start, count);
+		break;
+	default:
+		NOUVEAU_ERR("invalid idxbuf fmt %d\n", ib_size);
+		break;
+	}
+
+	pipe_buffer_unmap(pscreen, ib);
+}
+
+static void
+nvfx_draw_elements_vbo(struct pipe_context *pipe,
+		       unsigned mode, unsigned start, unsigned count)
+{
+	struct nvfx_context *nvfx = nvfx_context(pipe);
+	struct nvfx_screen *screen = nvfx->screen;
+	struct nouveau_channel *chan = screen->base.channel;
+	struct nouveau_grobj *eng3d = screen->eng3d;
+	unsigned restart = 0;
+
+	while (count) {
+		unsigned nr, vc;
+
+		nvfx_state_emit(nvfx);
+
+		vc = nouveau_vbuf_split(AVAIL_RING(chan), 6, 256,
+					mode, start, count, &restart);
+		if (!vc) {
+			FIRE_RING(chan);
+			continue;
+		}
+
+		BEGIN_RING(chan, eng3d, NV34TCL_VERTEX_BEGIN_END, 1);
+		OUT_RING  (chan, nvgl_primitive(mode));
+
+		nr = (vc & 0xff);
+		if (nr) {
+			BEGIN_RING(chan, eng3d, NV34TCL_VB_INDEX_BATCH, 1);
+			OUT_RING  (chan, ((nr - 1) << 24) | start);
+			start += nr;
+		}
+
+		nr = vc >> 8;
+		while (nr) {
+			unsigned push = nr > 2047 ? 2047 : nr;
+
+			nr -= push;
+
+			BEGIN_RING_NI(chan, eng3d, NV34TCL_VB_INDEX_BATCH, push);
+			while (push--) {
+				OUT_RING(chan, ((0x100 - 1) << 24) | start);
+				start += 0x100;
+			}
+		}
+
+		BEGIN_RING(chan, eng3d, NV34TCL_VERTEX_BEGIN_END, 1);
+		OUT_RING  (chan, 0);
+
+		count -= vc;
+		start = restart;
+	}
+}
+
+void
+nvfx_draw_elements(struct pipe_context *pipe,
+		   struct pipe_buffer *indexBuffer, unsigned indexSize,
+		   unsigned mode, unsigned start, unsigned count)
+{
+	struct nvfx_context *nvfx = nvfx_context(pipe);
+	boolean idxbuf;
+
+	idxbuf = nvfx_vbo_set_idxbuf(nvfx, indexBuffer, indexSize);
+	if (FORCE_SWTNL || !nvfx_state_validate(nvfx)) {
+		nvfx_draw_elements_swtnl(pipe, NULL, 0,
+                                           mode, start, count);
+		return;
+	}
+
+	if (idxbuf) {
+		nvfx_draw_elements_vbo(pipe, mode, start, count);
+	} else {
+		nvfx_draw_elements_inline(pipe, indexBuffer, indexSize,
+					  mode, start, count);
+	}
+
+	pipe->flush(pipe, 0, NULL);
+}
+
+static boolean
+nvfx_vbo_validate(struct nvfx_context *nvfx)
+{
+	struct nouveau_stateobj *vtxbuf, *vtxfmt, *sattr = NULL;
+	struct nouveau_grobj *eng3d = nvfx->screen->eng3d;
+	struct pipe_buffer *ib = nvfx->idxbuf;
+	unsigned ib_format = nvfx->idxbuf_format;
+	unsigned vb_flags = NOUVEAU_BO_VRAM | NOUVEAU_BO_GART | NOUVEAU_BO_RD;
+	int hw;
+
+	vtxbuf = so_new(3, 17, 18);
+	so_method(vtxbuf, eng3d, NV34TCL_VTXBUF_ADDRESS(0), nvfx->vtxelt->num_elements);
+	vtxfmt = so_new(1, 16, 0);
+	so_method(vtxfmt, eng3d, NV34TCL_VTXFMT(0), nvfx->vtxelt->num_elements);
+
+	for (hw = 0; hw < nvfx->vtxelt->num_elements; hw++) {
+		struct pipe_vertex_element *ve;
+		struct pipe_vertex_buffer *vb;
+		unsigned type, ncomp;
+
+		ve = &nvfx->vtxelt->pipe[hw];
+		vb = &nvfx->vtxbuf[ve->vertex_buffer_index];
+
+		if (!vb->stride) {
+			if (!sattr)
+				sattr = so_new(16, 16 * 4, 0);
+
+			if (nvfx_vbo_static_attrib(nvfx, sattr, hw, ve, vb)) {
+				so_data(vtxbuf, 0);
+				so_data(vtxfmt, NV34TCL_VTXFMT_TYPE_FLOAT);
+				continue;
+			}
+		}
+
+		if (nvfx_vbo_format_to_hw(ve->src_format, &type, &ncomp)) {
+			nvfx->fallback_swtnl |= NVFX_NEW_ARRAYS;
+			so_ref(NULL, &vtxbuf);
+			so_ref(NULL, &vtxfmt);
+			return FALSE;
+		}
+
+		so_reloc(vtxbuf, nouveau_bo(vb->buffer),
+				 vb->buffer_offset + ve->src_offset,
+				 vb_flags | NOUVEAU_BO_LOW | NOUVEAU_BO_OR,
+				 0, NV34TCL_VTXBUF_ADDRESS_DMA1);
+		so_data (vtxfmt, ((vb->stride << NV34TCL_VTXFMT_STRIDE_SHIFT) |
+				  (ncomp << NV34TCL_VTXFMT_SIZE_SHIFT) | type));
+	}
+
+	if (ib) {
+		struct nouveau_bo *bo = nouveau_bo(ib);
+
+		so_method(vtxbuf, eng3d, NV34TCL_IDXBUF_ADDRESS, 2);
+		so_reloc (vtxbuf, bo, 0, vb_flags | NOUVEAU_BO_LOW, 0, 0);
+		so_reloc (vtxbuf, bo, ib_format, vb_flags | NOUVEAU_BO_OR,
+				  0, NV34TCL_IDXBUF_FORMAT_DMA1);
+	}
+
+	so_method(vtxbuf, eng3d, 0x1710, 1);
+	so_data  (vtxbuf, 0);
+
+	so_ref(vtxbuf, &nvfx->state.hw[NVFX_STATE_VTXBUF]);
+	so_ref(NULL, &vtxbuf);
+	nvfx->state.dirty |= (1ULL << NVFX_STATE_VTXBUF);
+	so_ref(vtxfmt, &nvfx->state.hw[NVFX_STATE_VTXFMT]);
+	so_ref(NULL, &vtxfmt);
+	nvfx->state.dirty |= (1ULL << NVFX_STATE_VTXFMT);
+	so_ref(sattr, &nvfx->state.hw[NVFX_STATE_VTXATTR]);
+	so_ref(NULL, &sattr);
+	nvfx->state.dirty |= (1ULL << NVFX_STATE_VTXATTR);
+	return FALSE;
+}
+
+struct nvfx_state_entry nvfx_state_vbo = {
+	.validate = nvfx_vbo_validate,
+	.dirty = {
+		.pipe = NVFX_NEW_ARRAYS,
+		.hw = 0,
+	}
+};