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Diffstat (limited to 'src/gallium/winsys/svga/drm/vmw_screen_ioctl.c')
-rw-r--r--src/gallium/winsys/svga/drm/vmw_screen_ioctl.c529
1 files changed, 529 insertions, 0 deletions
diff --git a/src/gallium/winsys/svga/drm/vmw_screen_ioctl.c b/src/gallium/winsys/svga/drm/vmw_screen_ioctl.c
new file mode 100644
index 00000000000..5d81fa8c4a6
--- /dev/null
+++ b/src/gallium/winsys/svga/drm/vmw_screen_ioctl.c
@@ -0,0 +1,529 @@
+/**********************************************************
+ * Copyright 2009 VMware, Inc. All rights reserved.
+ *
+ * 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 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.
+ *
+ **********************************************************/
+
+/**
+ * @file
+ *
+ * Wrappers for DRM ioctl functionlaity used by the rest of the vmw
+ * drm winsys.
+ *
+ * Based on svgaicd_escape.c
+ */
+
+
+#include "svga_cmd.h"
+#include "util/u_memory.h"
+#include "util/u_math.h"
+#include "svgadump/svga_dump.h"
+#include "vmw_screen.h"
+#include "vmw_context.h"
+#include "xf86drm.h"
+#include "vmwgfx_drm.h"
+
+#include <sys/mman.h>
+#include <errno.h>
+#include <unistd.h>
+
+struct vmw_region
+{
+ SVGAGuestPtr ptr;
+ uint32_t handle;
+ uint64_t map_handle;
+ void *data;
+ uint32_t map_count;
+ int drm_fd;
+ uint32_t size;
+};
+
+/* XXX: This isn't a real hardware flag, but just a hack for kernel to
+ * know about primary surfaces. In newer versions of the kernel
+ * interface the driver uses a special field.
+ */
+#define SVGA3D_SURFACE_HINT_SCANOUT (1 << 9)
+
+static void
+vmw_check_last_cmd(struct vmw_winsys_screen *vws)
+{
+ static uint32_t buffer[16384];
+ struct drm_vmw_fifo_debug_arg arg;
+ int ret;
+
+ return;
+ memset(&arg, 0, sizeof(arg));
+ arg.debug_buffer = (unsigned long)buffer;
+ arg.debug_buffer_size = 65536;
+
+ ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_FIFO_DEBUG,
+ &arg, sizeof(arg));
+
+ if (ret) {
+ debug_printf("%s Ioctl error: \"%s\".\n", __FUNCTION__, strerror(-ret));
+ return;
+ }
+
+ if (arg.did_not_fit) {
+ debug_printf("%s Command did not fit completely.\n", __FUNCTION__);
+ }
+
+ svga_dump_commands(buffer, arg.used_size);
+}
+
+static void
+vmw_ioctl_fifo_unmap(struct vmw_winsys_screen *vws, void *mapping)
+{
+ VMW_FUNC;
+ (void)munmap(mapping, getpagesize());
+}
+
+
+static void *
+vmw_ioctl_fifo_map(struct vmw_winsys_screen *vws,
+ uint32_t fifo_offset )
+{
+ void *map;
+
+ VMW_FUNC;
+
+ map = mmap(NULL, getpagesize(), PROT_READ, MAP_SHARED,
+ vws->ioctl.drm_fd, fifo_offset);
+
+ if (map == MAP_FAILED) {
+ debug_printf("Map failed %s\n", strerror(errno));
+ return NULL;
+ }
+
+ vmw_printf("Fifo (min) is 0x%08x\n", ((uint32_t *) map)[SVGA_FIFO_MIN]);
+
+ return map;
+}
+
+uint32
+vmw_ioctl_context_create(struct vmw_winsys_screen *vws)
+{
+ struct drm_vmw_context_arg c_arg;
+ int ret;
+
+ VMW_FUNC;
+
+ ret = drmCommandRead(vws->ioctl.drm_fd, DRM_VMW_CREATE_CONTEXT,
+ &c_arg, sizeof(c_arg));
+
+ if (ret)
+ return -1;
+
+ vmw_check_last_cmd(vws);
+ vmw_printf("Context id is %d\n", c_arg.cid);
+
+ return c_arg.cid;
+}
+
+void
+vmw_ioctl_context_destroy(struct vmw_winsys_screen *vws, uint32 cid)
+{
+ struct drm_vmw_context_arg c_arg;
+
+ VMW_FUNC;
+
+ memset(&c_arg, 0, sizeof(c_arg));
+ c_arg.cid = cid;
+
+ (void)drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_UNREF_CONTEXT,
+ &c_arg, sizeof(c_arg));
+
+ vmw_check_last_cmd(vws);
+}
+
+uint32
+vmw_ioctl_surface_create(struct vmw_winsys_screen *vws,
+ SVGA3dSurfaceFlags flags,
+ SVGA3dSurfaceFormat format,
+ SVGA3dSize size,
+ uint32_t numFaces, uint32_t numMipLevels)
+{
+ union drm_vmw_surface_create_arg s_arg;
+ struct drm_vmw_surface_create_req *req = &s_arg.req;
+ struct drm_vmw_surface_arg *rep = &s_arg.rep;
+ struct drm_vmw_size sizes[DRM_VMW_MAX_SURFACE_FACES*
+ DRM_VMW_MAX_MIP_LEVELS];
+ struct drm_vmw_size *cur_size;
+ uint32_t iFace;
+ uint32_t iMipLevel;
+ int ret;
+
+ vmw_printf("%s flags %d format %d\n", __FUNCTION__, flags, format);
+
+ memset(&s_arg, 0, sizeof(s_arg));
+ if (vws->use_old_scanout_flag &&
+ (flags & SVGA3D_SURFACE_HINT_SCANOUT)) {
+ req->flags = (uint32_t) flags;
+ req->scanout = false;
+ } else if (flags & SVGA3D_SURFACE_HINT_SCANOUT) {
+ req->flags = (uint32_t) (flags & ~SVGA3D_SURFACE_HINT_SCANOUT);
+ req->scanout = true;
+ } else {
+ req->flags = (uint32_t) flags;
+ req->scanout = false;
+ }
+ req->format = (uint32_t) format;
+ req->shareable = 1;
+
+ assert(numFaces * numMipLevels < DRM_VMW_MAX_SURFACE_FACES*
+ DRM_VMW_MAX_MIP_LEVELS);
+ cur_size = sizes;
+ for (iFace = 0; iFace < numFaces; ++iFace) {
+ SVGA3dSize mipSize = size;
+
+ req->mip_levels[iFace] = numMipLevels;
+ for (iMipLevel = 0; iMipLevel < numMipLevels; ++iMipLevel) {
+ cur_size->width = mipSize.width;
+ cur_size->height = mipSize.height;
+ cur_size->depth = mipSize.depth;
+ mipSize.width = MAX2(mipSize.width >> 1, 1);
+ mipSize.height = MAX2(mipSize.height >> 1, 1);
+ mipSize.depth = MAX2(mipSize.depth >> 1, 1);
+ cur_size++;
+ }
+ }
+ for (iFace = numFaces; iFace < SVGA3D_MAX_SURFACE_FACES; ++iFace) {
+ req->mip_levels[iFace] = 0;
+ }
+
+ req->size_addr = (unsigned long)&sizes;
+
+ ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_CREATE_SURFACE,
+ &s_arg, sizeof(s_arg));
+
+ if (ret)
+ return -1;
+
+ vmw_printf("Surface id is %d\n", rep->sid);
+ vmw_check_last_cmd(vws);
+
+ return rep->sid;
+}
+
+void
+vmw_ioctl_surface_destroy(struct vmw_winsys_screen *vws, uint32 sid)
+{
+ struct drm_vmw_surface_arg s_arg;
+
+ VMW_FUNC;
+
+ memset(&s_arg, 0, sizeof(s_arg));
+ s_arg.sid = sid;
+
+ (void)drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_UNREF_SURFACE,
+ &s_arg, sizeof(s_arg));
+ vmw_check_last_cmd(vws);
+
+}
+
+void
+vmw_ioctl_command(struct vmw_winsys_screen *vws, void *commands, uint32_t size,
+ uint32_t * pfence)
+{
+ struct drm_vmw_execbuf_arg arg;
+ struct drm_vmw_fence_rep rep;
+ int ret;
+
+#ifdef DEBUG
+ {
+ static boolean firsttime = TRUE;
+ static boolean debug = FALSE;
+ static boolean skip = FALSE;
+ if (firsttime) {
+ debug = debug_get_bool_option("SVGA_DUMP_CMD", FALSE);
+ skip = debug_get_bool_option("SVGA_SKIP_CMD", FALSE);
+ }
+ if (debug) {
+ VMW_FUNC;
+ svga_dump_commands(commands, size);
+ }
+ firsttime = FALSE;
+ if (skip) {
+ size = 0;
+ }
+ }
+#endif
+
+ memset(&arg, 0, sizeof(arg));
+ memset(&rep, 0, sizeof(rep));
+
+ rep.error = -EFAULT;
+ arg.fence_rep = (unsigned long)&rep;
+ arg.commands = (unsigned long)commands;
+ arg.command_size = size;
+
+ do {
+ ret = drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_EXECBUF, &arg, sizeof(arg));
+ } while(ret == -ERESTART);
+ if (ret) {
+ debug_printf("%s error %s.\n", __FUNCTION__, strerror(-ret));
+ }
+ if (rep.error) {
+
+ /*
+ * Kernel has synced and put the last fence sequence in the FIFO
+ * register.
+ */
+
+ if (rep.error == -EFAULT)
+ rep.fence_seq = vws->ioctl.fifo_map[SVGA_FIFO_FENCE];
+
+ debug_printf("%s Fence error %s.\n", __FUNCTION__,
+ strerror(-rep.error));
+ }
+
+ vws->ioctl.last_fence = rep.fence_seq;
+
+ if (pfence)
+ *pfence = rep.fence_seq;
+ vmw_check_last_cmd(vws);
+
+}
+
+
+struct vmw_region *
+vmw_ioctl_region_create(struct vmw_winsys_screen *vws, uint32_t size)
+{
+ struct vmw_region *region;
+ union drm_vmw_alloc_dmabuf_arg arg;
+ struct drm_vmw_alloc_dmabuf_req *req = &arg.req;
+ struct drm_vmw_dmabuf_rep *rep = &arg.rep;
+ int ret;
+
+ vmw_printf("%s: size = %u\n", __FUNCTION__, size);
+
+ region = CALLOC_STRUCT(vmw_region);
+ if (!region)
+ goto out_err1;
+
+ memset(&arg, 0, sizeof(arg));
+ req->size = size;
+ do {
+ ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_ALLOC_DMABUF, &arg,
+ sizeof(arg));
+ } while (ret == -ERESTART);
+
+ if (ret) {
+ debug_printf("IOCTL failed %d: %s\n", ret, strerror(-ret));
+ goto out_err1;
+ }
+
+ region->ptr.gmrId = rep->cur_gmr_id;
+ region->ptr.offset = rep->cur_gmr_offset;
+ region->data = NULL;
+ region->handle = rep->handle;
+ region->map_handle = rep->map_handle;
+ region->map_count = 0;
+ region->size = size;
+ region->drm_fd = vws->ioctl.drm_fd;
+
+ vmw_printf(" gmrId = %u, offset = %u\n",
+ region->ptr.gmrId, region->ptr.offset);
+
+ return region;
+
+ out_err1:
+ FREE(region);
+ return NULL;
+}
+
+void
+vmw_ioctl_region_destroy(struct vmw_region *region)
+{
+ struct drm_vmw_unref_dmabuf_arg arg;
+
+ vmw_printf("%s: gmrId = %u, offset = %u\n", __FUNCTION__,
+ region->ptr.gmrId, region->ptr.offset);
+
+ if (region->data) {
+ munmap(region->data, region->size);
+ region->data = NULL;
+ }
+
+ memset(&arg, 0, sizeof(arg));
+ arg.handle = region->handle;
+ drmCommandWrite(region->drm_fd, DRM_VMW_UNREF_DMABUF, &arg, sizeof(arg));
+
+ FREE(region);
+}
+
+SVGAGuestPtr
+vmw_ioctl_region_ptr(struct vmw_region *region)
+{
+ return region->ptr;
+}
+
+void *
+vmw_ioctl_region_map(struct vmw_region *region)
+{
+ void *map;
+
+ vmw_printf("%s: gmrId = %u, offset = %u\n", __FUNCTION__,
+ region->ptr.gmrId, region->ptr.offset);
+
+ if (region->data == NULL) {
+ map = mmap(NULL, region->size, PROT_READ | PROT_WRITE, MAP_SHARED,
+ region->drm_fd, region->map_handle);
+ if (map == MAP_FAILED) {
+ debug_printf("%s: Map failed.\n", __FUNCTION__);
+ return NULL;
+ }
+
+ region->data = map;
+ }
+
+ ++region->map_count;
+
+ return region->data;
+}
+
+void
+vmw_ioctl_region_unmap(struct vmw_region *region)
+{
+ vmw_printf("%s: gmrId = %u, offset = %u\n", __FUNCTION__,
+ region->ptr.gmrId, region->ptr.offset);
+ --region->map_count;
+}
+
+
+int
+vmw_ioctl_fence_signalled(struct vmw_winsys_screen *vws,
+ uint32_t fence)
+{
+ uint32_t expected;
+ uint32_t current;
+
+ assert(fence);
+ if(!fence)
+ return 0;
+
+ expected = fence;
+ current = vws->ioctl.fifo_map[SVGA_FIFO_FENCE];
+
+ if ((int32)(current - expected) >= 0)
+ return 0; /* fence passed */
+ else
+ return -1;
+}
+
+
+static void
+vmw_ioctl_sync(struct vmw_winsys_screen *vws,
+ uint32_t fence)
+{
+ uint32_t cur_fence;
+ struct drm_vmw_fence_wait_arg arg;
+ int ret;
+
+ vmw_printf("%s: fence = %lu\n", __FUNCTION__,
+ (unsigned long)fence);
+
+ cur_fence = vws->ioctl.fifo_map[SVGA_FIFO_FENCE];
+ vmw_printf("%s: Fence id read is 0x%08x\n", __FUNCTION__,
+ (unsigned int)cur_fence);
+
+ if ((cur_fence - fence) < (1 << 24))
+ return;
+
+ memset(&arg, 0, sizeof(arg));
+ arg.sequence = fence;
+
+ do {
+ ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_FENCE_WAIT, &arg,
+ sizeof(arg));
+ } while (ret == -ERESTART);
+}
+
+
+int
+vmw_ioctl_fence_finish(struct vmw_winsys_screen *vws,
+ uint32_t fence)
+{
+ assert(fence);
+
+ if(fence) {
+ if(vmw_ioctl_fence_signalled(vws, fence) != 0) {
+ vmw_ioctl_sync(vws, fence);
+ }
+ }
+
+ return 0;
+}
+
+
+boolean
+vmw_ioctl_init(struct vmw_winsys_screen *vws)
+{
+ struct drm_vmw_getparam_arg gp_arg;
+ int ret;
+
+ VMW_FUNC;
+
+ memset(&gp_arg, 0, sizeof(gp_arg));
+ gp_arg.param = DRM_VMW_PARAM_3D;
+ ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_GET_PARAM,
+ &gp_arg, sizeof(gp_arg));
+ if (ret || gp_arg.value == 0) {
+ debug_printf("No 3D enabled (%i, %s)\n", ret, strerror(-ret));
+ goto out_err1;
+ }
+
+ memset(&gp_arg, 0, sizeof(gp_arg));
+ gp_arg.param = DRM_VMW_PARAM_FIFO_OFFSET;
+ ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_GET_PARAM,
+ &gp_arg, sizeof(gp_arg));
+
+ if (ret) {
+ debug_printf("GET_PARAM on %d returned %d: %s\n",
+ vws->ioctl.drm_fd, ret, strerror(-ret));
+ goto out_err1;
+ }
+
+ vmw_printf("Offset to map is 0x%08llx\n",
+ (unsigned long long)gp_arg.value);
+
+ vws->ioctl.fifo_map = vmw_ioctl_fifo_map(vws, gp_arg.value);
+ if (vws->ioctl.fifo_map == NULL)
+ goto out_err1;
+
+ vmw_printf("%s OK\n", __FUNCTION__);
+ return TRUE;
+
+ out_err1:
+ debug_printf("%s Failed\n", __FUNCTION__);
+ return FALSE;
+}
+
+
+
+void
+vmw_ioctl_cleanup(struct vmw_winsys_screen *vws)
+{
+ VMW_FUNC;
+
+ vmw_ioctl_fifo_unmap(vws, (void *)vws->ioctl.fifo_map);
+}
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