diff options
Diffstat (limited to 'kernel/drivers/gpu/drm/mga/mga_warp.c')
| -rw-r--r-- | kernel/drivers/gpu/drm/mga/mga_warp.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/mga/mga_warp.c b/kernel/drivers/gpu/drm/mga/mga_warp.c new file mode 100644 index 000000000..0b7635226 --- /dev/null +++ b/kernel/drivers/gpu/drm/mga/mga_warp.c @@ -0,0 +1,169 @@ +/* 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; +} |