diff options
Diffstat (limited to 'src/reg_dumper/stepping.c')
| -rw-r--r-- | src/reg_dumper/stepping.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/src/reg_dumper/stepping.c b/src/reg_dumper/stepping.c new file mode 100644 index 00000000..dd0cb427 --- /dev/null +++ b/src/reg_dumper/stepping.c @@ -0,0 +1,137 @@ +/* + * Copyright © 2007 Intel Corporation + * + * 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: + * Eric Anholt <eric@anholt.net> + * + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stdarg.h> +#include <pciaccess.h> +#include <err.h> +#include "common.h" + +int main(int argc, char **argv) +{ + struct pci_device *dev, *bridge; + int err; + uint8_t stepping; + char *step_desc = "??"; + + err = pci_system_init(); + if (err != 0) { + fprintf(stderr, "Couldn't initialize PCI system: %s\n", strerror(err)); + exit(1); + } + + /* Grab the graphics card */ + dev = pci_device_find_by_slot(0, 0, 2, 0); + if (dev == NULL) + errx(1, "Couldn't find graphics card"); + + err = pci_device_probe(dev); + if (err != 0) { + fprintf(stderr, "Couldn't probe graphics card: %s\n", strerror(err)); + exit(1); + } + + if (dev->vendor_id != 0x8086) + errx(1, "Graphics card is non-intel"); + + bridge = pci_device_find_by_slot(0, 0, 0, 0); + if (dev == NULL) + errx(1, "Couldn't bridge"); + + err = pci_device_cfg_read_u8(bridge, &stepping, 8); + if (err != 0) { + fprintf(stderr, "Couldn't read revision ID: %s\n", strerror(err)); + exit(1); + } + + switch (dev->device_id) { + case PCI_CHIP_I915_G: + if (stepping < 0x04) + step_desc = "<B1"; + else if (stepping == 0x04) + step_desc = "B1"; + else if (stepping == 0x0e) + step_desc = "C2"; + else if (stepping > 0x0e) + step_desc = ">C2"; + else + step_desc = ">B1 <C2"; + break; + case PCI_CHIP_I915_GM: + if (stepping < 0x03) + step_desc = "<B1"; + else if (stepping == 0x03) + step_desc = "B1/C0"; + else if (stepping == 0x04) + step_desc = "C1/C2"; + else + step_desc = ">C2"; + break; + case PCI_CHIP_I945_GM: + if (stepping < 0x03) + step_desc = "<A3"; + else if (stepping == 0x03) + step_desc = "A3"; + else + step_desc = ">A3"; + break; + case PCI_CHIP_I965_G: + case PCI_CHIP_I965_Q: + if (stepping < 0x02) + step_desc = "<C1"; + else if (stepping == 0x02) + step_desc = "C1/C2"; + else + step_desc = ">C2"; + break; + case PCI_CHIP_I965_GM: + if (stepping < 0x03) + step_desc = "<C0"; + else if (stepping == 0x03) + step_desc = "C0"; + else + step_desc = ">C0"; + break; + case PCI_CHIP_G35_G: + if (stepping < 0x03) + step_desc = "<E0"; + else if (stepping == 0x03) + step_desc = "E0"; + else + step_desc = ">E0"; + break; + } + + printf("Vendor: 0x%04x, Device: 0x%04x, Revision: 0x%02x (%s)\n", + dev->vendor_id, + dev->device_id, + stepping, + step_desc); + return 0; +} |