1 files changed, 96 insertions, 0 deletions
diff --git a/src/gallium/winsys/drm/radeon/radeon_r300.c b/src/gallium/winsys/drm/radeon/radeon_r300.c
new file mode 100644
index 0000000000..8fe2375e34
--- /dev/null
+++ b/src/gallium/winsys/drm/radeon/radeon_r300.c
@@ -0,0 +1,96 @@
+/*
+ * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
+ *
+ * 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
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR SUPPLIERS 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. */
+
+#include "radeon_r300.h"
+
+static boolean radeon_r300_check_cs(struct radeon_cs* cs, int size)
+{
+    /* XXX check size here, lazy ass! */
+    return TRUE;
+}
+
+static void radeon_r300_write_cs_reloc(struct radeon_cs* cs,
+                                    struct pipe_buffer* pbuffer,
+                                    uint32_t rd,
+                                    uint32_t wd,
+                                    uint32_t flags)
+{
+    radeon_cs_write_reloc(cs, ((struct radeon_pipe_buffer*)pbuffer)->bo, rd, wd, flags);
+}
+
+static void radeon_r300_flush_cs(struct radeon_cs* cs)
+{
+    radeon_cs_emit(cs);
+    radeon_cs_erase(cs);
+}
+
+/* Helper function to do the ioctls needed for setup and init. */
+static void do_ioctls(struct r300_winsys* winsys, int fd)
+{
+    drm_radeon_getparam_t gp;
+    uint32_t target;
+    int retval;
+
+    /* XXX is this cast safe? */
+    gp.value = (int*)&target;
+
+    /* First, get PCI ID */
+    gp.param = RADEON_PARAM_DEVICE_ID;
+    retval = drmCommandWriteRead(fd, DRM_RADEON_GETPARAM, &gp, sizeof(gp));
+    if (retval) {
+        fprintf(stderr, "%s: Failed to get PCI ID, error number %d",
+                __FUNCTION__, retval);
+        exit(1);
+    }
+    winsys->pci_id = target;
+
+    /* Then, get the number of pixel pipes */
+    gp.param = RADEON_PARAM_NUM_GB_PIPES;
+    retval = drmCommandWriteRead(fd, DRM_RADEON_GETPARAM, &gp, sizeof(gp));
+    if (retval) {
+        fprintf(stderr, "%s: Failed to get GB pipe count, error number %d",
+                __FUNCTION__, retval);
+        exit(1);
+    }
+    winsys->gb_pipes = target;
+
+}
+
+struct r300_winsys* radeon_create_r300_winsys(int fd)
+{
+    struct r300_winsys* winsys = calloc(1, sizeof(struct r300_winsys));
+
+    do_ioctls(winsys, fd);
+
+    struct radeon_cs_manager* csm = radeon_cs_manager_gem_ctor(fd);
+
+    winsys->cs = radeon_cs_create(csm, 1024 * 64 / 4);
+
+    winsys->check_cs = radeon_r300_check_cs;
+    winsys->begin_cs = radeon_cs_begin;
+    winsys->write_cs_dword = radeon_cs_write_dword;
+    winsys->write_cs_reloc = radeon_r300_write_cs_reloc;
+    winsys->end_cs = radeon_cs_end;
+    winsys->flush_cs = radeon_r300_flush_cs;
+
+    return winsys;
+}