freedreno: support either kgsl or msm

Split out common code and backend.  Current backend is for 'kgsl'
android driver, but a new backend will provide support for the
upstream msm drm/kms driver.

Signed-off-by: Rob Clark <robclark@freedesktop.org>

1 files changed, 264 insertions, 0 deletions

diff --git a/freedreno/kgsl/kgsl_pipe.c b/freedreno/kgsl/kgsl_pipe.c
new file mode 100644
index 00000000..f7ff7fe0
--- /dev/null
+++ b/freedreno/kgsl/kgsl_pipe.c
@@ -0,0 +1,264 @@
+/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
+
+/*
+ * Copyright (C) 2013 Rob Clark <robclark@freedesktop.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Authors:
+ *    Rob Clark <robclark@freedesktop.org>
+ */
+
+#include "kgsl_priv.h"
+
+
+static int kgsl_pipe_get_param(struct fd_pipe *pipe,
+		enum fd_param_id param, uint64_t *value)
+{
+	struct kgsl_pipe *kgsl_pipe = to_kgsl_pipe(pipe);
+	switch (param) {
+	case FD_DEVICE_ID:
+		*value = kgsl_pipe->devinfo.device_id;
+		return 0;
+	case FD_GPU_ID:
+		*value = kgsl_pipe->devinfo.gpu_id;
+		return 0;
+	case FD_GMEM_SIZE:
+		*value = kgsl_pipe->devinfo.gmem_sizebytes;
+		return 0;
+	default:
+		ERROR_MSG("invalid param id: %d", param);
+		return -1;
+	}
+}
+
+static int kgsl_pipe_wait(struct fd_pipe *pipe, uint32_t timestamp)
+{
+	struct kgsl_pipe *kgsl_pipe = to_kgsl_pipe(pipe);
+	struct kgsl_device_waittimestamp req = {
+			.timestamp = timestamp,
+			.timeout   = 5000,
+	};
+	int ret;
+
+	do {
+		ret = ioctl(kgsl_pipe->fd, IOCTL_KGSL_DEVICE_WAITTIMESTAMP, &req);
+	} while ((ret == -1) && ((errno == EINTR) || (errno == EAGAIN)));
+	if (ret)
+		ERROR_MSG("waittimestamp failed! %d (%s)", ret, strerror(errno));
+	else
+		kgsl_pipe_process_pending(kgsl_pipe, timestamp);
+	return ret;
+}
+
+int kgsl_pipe_timestamp(struct kgsl_pipe *kgsl_pipe, uint32_t *timestamp)
+{
+	struct kgsl_cmdstream_readtimestamp req = {
+			.type = KGSL_TIMESTAMP_RETIRED
+	};
+	int ret = ioctl(kgsl_pipe->fd, IOCTL_KGSL_CMDSTREAM_READTIMESTAMP, &req);
+	if (ret) {
+		ERROR_MSG("readtimestamp failed! %d (%s)",
+				ret, strerror(errno));
+		return ret;
+	}
+	*timestamp = req.timestamp;
+	return 0;
+}
+
+static void kgsl_pipe_destroy(struct fd_pipe *pipe)
+{
+	struct kgsl_pipe *kgsl_pipe = to_kgsl_pipe(pipe);
+	struct kgsl_drawctxt_destroy req = {
+			.drawctxt_id = kgsl_pipe->drawctxt_id,
+	};
+
+	if (kgsl_pipe->drawctxt_id)
+		ioctl(kgsl_pipe->fd, IOCTL_KGSL_DRAWCTXT_DESTROY, &req);
+
+	if (kgsl_pipe->fd)
+		close(kgsl_pipe->fd);
+
+	free(kgsl_pipe);
+}
+
+static struct fd_pipe_funcs funcs = {
+		.ringbuffer_new = kgsl_ringbuffer_new,
+		.get_param = kgsl_pipe_get_param,
+		.wait = kgsl_pipe_wait,
+		.destroy = kgsl_pipe_destroy,
+};
+
+int is_kgsl_pipe(struct fd_pipe *pipe)
+{
+	return pipe->funcs == &funcs;
+}
+
+/* add buffer to submit list when it is referenced in cmdstream: */
+void kgsl_pipe_add_submit(struct kgsl_pipe *kgsl_pipe,
+		struct kgsl_bo *kgsl_bo)
+{
+	struct fd_pipe *pipe = &kgsl_pipe->base;
+	struct fd_bo *bo = &kgsl_bo->base;
+	struct list_head *list = &kgsl_bo->list[pipe->id];
+	if (LIST_IS_EMPTY(list)) {
+		fd_bo_ref(bo);
+	} else {
+		list_del(list);
+	}
+	list_addtail(list, &kgsl_pipe->submit_list);
+}
+
+/* prepare buffers on submit list before flush: */
+void kgsl_pipe_pre_submit(struct kgsl_pipe *kgsl_pipe)
+{
+	struct fd_pipe *pipe = &kgsl_pipe->base;
+	struct kgsl_bo *kgsl_bo = NULL;
+
+	if (!kgsl_pipe->p3d)
+		kgsl_pipe->p3d = fd_pipe_new(pipe->dev, FD_PIPE_3D);
+
+	LIST_FOR_EACH_ENTRY(kgsl_bo, &kgsl_pipe->submit_list, list[pipe->id]) {
+		uint32_t timestamp = kgsl_bo_get_timestamp(kgsl_bo);
+		if (timestamp)
+			fd_pipe_wait(kgsl_pipe->p3d, timestamp);
+	}
+}
+
+/* process buffers on submit list after flush: */
+void kgsl_pipe_post_submit(struct kgsl_pipe *kgsl_pipe, uint32_t timestamp)
+{
+	struct fd_pipe *pipe = &kgsl_pipe->base;
+	struct kgsl_bo *kgsl_bo = NULL, *tmp;
+
+	LIST_FOR_EACH_ENTRY_SAFE(kgsl_bo, tmp, &kgsl_pipe->submit_list, list[pipe->id]) {
+		struct list_head *list = &kgsl_bo->list[pipe->id];
+		list_del(list);
+		kgsl_bo->timestamp[pipe->id] = timestamp;
+		list_addtail(list, &kgsl_pipe->pending_list);
+
+		kgsl_bo_set_timestamp(kgsl_bo, timestamp);
+	}
+
+	if (!kgsl_pipe_timestamp(kgsl_pipe, &timestamp))
+		kgsl_pipe_process_pending(kgsl_pipe, timestamp);
+}
+
+void kgsl_pipe_process_pending(struct kgsl_pipe *kgsl_pipe, uint32_t timestamp)
+{
+	struct fd_pipe *pipe = &kgsl_pipe->base;
+	struct kgsl_bo *kgsl_bo = NULL, *tmp;
+
+	LIST_FOR_EACH_ENTRY_SAFE(kgsl_bo, tmp, &kgsl_pipe->pending_list, list[pipe->id]) {
+		struct list_head *list = &kgsl_bo->list[pipe->id];
+		if (kgsl_bo->timestamp[pipe->id] > timestamp)
+			return;
+		list_delinit(list);
+		kgsl_bo->timestamp[pipe->id] = 0;
+		fd_bo_del(&kgsl_bo->base);
+	}
+}
+
+static int getprop(int fd, enum kgsl_property_type type,
+		void *value, int sizebytes)
+{
+	struct kgsl_device_getproperty req = {
+			.type = type,
+			.value = value,
+			.sizebytes = sizebytes,
+	};
+	return ioctl(fd, IOCTL_KGSL_DEVICE_GETPROPERTY, &req);
+}
+
+#define GETPROP(fd, prop, x) do { \
+	if (getprop((fd), KGSL_PROP_##prop, &(x), sizeof(x))) {     \
+		ERROR_MSG("failed to get property: " #prop);            \
+		goto fail;                                              \
+	} } while (0)
+
+
+struct fd_pipe * kgsl_pipe_new(struct fd_device *dev, enum fd_pipe_id id)
+{
+	static const char *paths[] = {
+			[FD_PIPE_3D] = "/dev/kgsl-3d0",
+			[FD_PIPE_2D] = "/dev/kgsl-2d0",
+	};
+	struct kgsl_drawctxt_create req = {
+			.flags = 0x2000, /* ??? */
+	};
+	struct kgsl_pipe *kgsl_pipe = NULL;
+	struct fd_pipe *pipe = NULL;
+	int ret, fd;
+
+	fd = open(paths[id], O_RDWR);
+	if (fd < 0) {
+		ERROR_MSG("could not open %s device: %d (%s)",
+				paths[id], fd, strerror(errno));
+		goto fail;
+	}
+
+	ret = ioctl(fd, IOCTL_KGSL_DRAWCTXT_CREATE, &req);
+	if (ret) {
+		ERROR_MSG("failed to allocate context: %d (%s)",
+				ret, strerror(errno));
+		goto fail;
+	}
+
+	kgsl_pipe = calloc(1, sizeof(*kgsl_pipe));
+	if (!kgsl_pipe) {
+		ERROR_MSG("allocation failed");
+		goto fail;
+	}
+
+	pipe = &kgsl_pipe->base;
+	pipe->funcs = &funcs;
+
+	kgsl_pipe->fd = fd;
+	kgsl_pipe->drawctxt_id = req.drawctxt_id;
+
+	list_inithead(&kgsl_pipe->submit_list);
+	list_inithead(&kgsl_pipe->pending_list);
+
+	GETPROP(fd, VERSION,     kgsl_pipe->version);
+	GETPROP(fd, DEVICE_INFO, kgsl_pipe->devinfo);
+
+	INFO_MSG("Pipe Info:");
+	INFO_MSG(" Device:          %s", paths[id]);
+	INFO_MSG(" Chip-id:         %d.%d.%d.%d",
+			(kgsl_pipe->devinfo.chip_id >> 24) & 0xff,
+			(kgsl_pipe->devinfo.chip_id >> 16) & 0xff,
+			(kgsl_pipe->devinfo.chip_id >>  8) & 0xff,
+			(kgsl_pipe->devinfo.chip_id >>  0) & 0xff);
+	INFO_MSG(" Device-id:       %d", kgsl_pipe->devinfo.device_id);
+	INFO_MSG(" GPU-id:          %d", kgsl_pipe->devinfo.gpu_id);
+	INFO_MSG(" MMU enabled:     %d", kgsl_pipe->devinfo.mmu_enabled);
+	INFO_MSG(" GMEM Base addr:  0x%08x", kgsl_pipe->devinfo.gmem_gpubaseaddr);
+	INFO_MSG(" GMEM size:       0x%08x", kgsl_pipe->devinfo.gmem_sizebytes);
+	INFO_MSG(" Driver version:  %d.%d",
+			kgsl_pipe->version.drv_major, kgsl_pipe->version.drv_minor);
+	INFO_MSG(" Device version:  %d.%d",
+			kgsl_pipe->version.dev_major, kgsl_pipe->version.dev_minor);
+
+	return pipe;
+fail:
+	if (pipe)
+		fd_pipe_del(pipe);
+	return NULL;
+}