--- /dev/null
+/* mga_warp.c -- Matrox G200/G400 WARP engine management -*- linux-c -*-
+ * Created: Thu Jan 11 21:29:32 2001 by gareth@valinux.com
+ *
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * 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 (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
+ * VA LINUX SYSTEMS AND/OR ITS 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.
+ *
+ * Authors:
+ * Gareth Hughes <gareth@valinux.com>
+ */
+
+#include <linux/firmware.h>
+#include <linux/ihex.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+
+#include <drm/drmP.h>
+#include <drm/mga_drm.h>
+#include "mga_drv.h"
+
+#define FIRMWARE_G200 "matrox/g200_warp.fw"
+#define FIRMWARE_G400 "matrox/g400_warp.fw"
+
+MODULE_FIRMWARE(FIRMWARE_G200);
+MODULE_FIRMWARE(FIRMWARE_G400);
+
+#define MGA_WARP_CODE_ALIGN 256 /* in bytes */
+
+#define WARP_UCODE_SIZE(size) ALIGN(size, MGA_WARP_CODE_ALIGN)
+
+int mga_warp_install_microcode(drm_mga_private_t *dev_priv)
+{
+ unsigned char *vcbase = dev_priv->warp->handle;
+ unsigned long pcbase = dev_priv->warp->offset;
+ const char *firmware_name;
+ struct platform_device *pdev;
+ const struct firmware *fw = NULL;
+ const struct ihex_binrec *rec;
+ unsigned int size;
+ int n_pipes, where;
+ int rc = 0;
+
+ switch (dev_priv->chipset) {
+ case MGA_CARD_TYPE_G400:
+ case MGA_CARD_TYPE_G550:
+ firmware_name = FIRMWARE_G400;
+ n_pipes = MGA_MAX_G400_PIPES;
+ break;
+ case MGA_CARD_TYPE_G200:
+ firmware_name = FIRMWARE_G200;
+ n_pipes = MGA_MAX_G200_PIPES;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ pdev = platform_device_register_simple("mga_warp", 0, NULL, 0);
+ if (IS_ERR(pdev)) {
+ DRM_ERROR("mga: Failed to register microcode\n");
+ return PTR_ERR(pdev);
+ }
+ rc = request_ihex_firmware(&fw, firmware_name, &pdev->dev);
+ platform_device_unregister(pdev);
+ if (rc) {
+ DRM_ERROR("mga: Failed to load microcode \"%s\"\n",
+ firmware_name);
+ return rc;
+ }
+
+ size = 0;
+ where = 0;
+ for (rec = (const struct ihex_binrec *)fw->data;
+ rec;
+ rec = ihex_next_binrec(rec)) {
+ size += WARP_UCODE_SIZE(be16_to_cpu(rec->len));
+ where++;
+ }
+
+ if (where != n_pipes) {
+ DRM_ERROR("mga: Invalid microcode \"%s\"\n", firmware_name);
+ rc = -EINVAL;
+ goto out;
+ }
+ size = PAGE_ALIGN(size);
+ DRM_DEBUG("MGA ucode size = %d bytes\n", size);
+ if (size > dev_priv->warp->size) {
+ DRM_ERROR("microcode too large! (%u > %lu)\n",
+ size, dev_priv->warp->size);
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ memset(dev_priv->warp_pipe_phys, 0, sizeof(dev_priv->warp_pipe_phys));
+
+ where = 0;
+ for (rec = (const struct ihex_binrec *)fw->data;
+ rec;
+ rec = ihex_next_binrec(rec)) {
+ unsigned int src_size, dst_size;
+
+ DRM_DEBUG(" pcbase = 0x%08lx vcbase = %p\n", pcbase, vcbase);
+ dev_priv->warp_pipe_phys[where] = pcbase;
+ src_size = be16_to_cpu(rec->len);
+ dst_size = WARP_UCODE_SIZE(src_size);
+ memcpy(vcbase, rec->data, src_size);
+ pcbase += dst_size;
+ vcbase += dst_size;
+ where++;
+ }
+
+out:
+ release_firmware(fw);
+ return rc;
+}
+
+#define WMISC_EXPECTED (MGA_WUCODECACHE_ENABLE | MGA_WMASTER_ENABLE)
+
+int mga_warp_init(drm_mga_private_t *dev_priv)
+{
+ u32 wmisc;
+
+ /* FIXME: Get rid of these damned magic numbers...
+ */
+ switch (dev_priv->chipset) {
+ case MGA_CARD_TYPE_G400:
+ case MGA_CARD_TYPE_G550:
+ MGA_WRITE(MGA_WIADDR2, MGA_WMODE_SUSPEND);
+ MGA_WRITE(MGA_WGETMSB, 0x00000E00);
+ MGA_WRITE(MGA_WVRTXSZ, 0x00001807);
+ MGA_WRITE(MGA_WACCEPTSEQ, 0x18000000);
+ break;
+ case MGA_CARD_TYPE_G200:
+ MGA_WRITE(MGA_WIADDR, MGA_WMODE_SUSPEND);
+ MGA_WRITE(MGA_WGETMSB, 0x1606);
+ MGA_WRITE(MGA_WVRTXSZ, 7);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ MGA_WRITE(MGA_WMISC, (MGA_WUCODECACHE_ENABLE |
+ MGA_WMASTER_ENABLE | MGA_WCACHEFLUSH_ENABLE));
+ wmisc = MGA_READ(MGA_WMISC);
+ if (wmisc != WMISC_EXPECTED) {
+ DRM_ERROR("WARP engine config failed! 0x%x != 0x%x\n",
+ wmisc, WMISC_EXPECTED);
+ return -EINVAL;
+ }
+
+ return 0;
+}
Code Review / kvmfornfv.git / blobdiff