diff options
| author | Ben Widawsky <benjamin.widawsky@intel.com> | 2013-09-01 12:34:36 -0700 |
|---|---|---|
| committer | Ben Widawsky <benjamin.widawsky@intel.com> | 2013-09-03 15:31:14 -0700 |
| commit | 612252f3f9aaa67848f3f74b8a7237eb1fa72159 (patch) | |
| tree | 6030bd706c186d4c81bc9a8b9dc941560c0e43c1 | |
| parent | c6f9bdc66f9ed82c82c1e77bb8bbadc250648c6e (diff) | |
intel_gtt: Raw PTE dumper mode
./tools/intel_gtt -d | head
GTT offset | PTEs
--------------------------------------------------------
0x000000 | 0xe4005015 0xe2854015 0xe283e015 0xe283f015
0x004000 | 0xe28ba015 0xe28bb015 0xe28b6015 0xe28b7015
0x008000 | 0xe2828015 0xe2829015 0xe282a015 0xe282b015
0x00c000 | 0xe2928015 0xe2929015 0xe292a015 0xe292b015
0x010000 | 0xe2918015 0xe2919015 0xe291a015 0xe291b015
0x014000 | 0xe291c015 0xe291d015 0xe291e015 0xe291f015
0x018000 | 0xe2920015 0xe2921015 0xe2922015 0xe2923015
0x01c000 | 0xe2924015 0xe2925015 0xe2926015 0xe2927015
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
| -rw-r--r-- | tools/intel_gtt.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/tools/intel_gtt.c b/tools/intel_gtt.c index d13e29dd..1f1b8820 100644 --- a/tools/intel_gtt.c +++ b/tools/intel_gtt.c @@ -71,6 +71,25 @@ static uint64_t get_phys(uint32_t pt_offset) return (phys | pae) & ~0xfff; } +static void pte_dump(int size, uint32_t offset) { + int start; + /* Want to print 4 ptes at a time (4b PTE assumed). */ + if (size % 16) + size = (size + 16) & ~0xffff; + + + printf("GTT offset | PTEs\n"); + printf("--------------------------------------------------------\n"); + for (start = 0; start < size; start += KB(16)) { + printf(" 0x%06x | 0x%08x 0x%08x 0x%08x 0x%08x\n", + start, + INGTT(start + 0x0), + INGTT(start + 0x1000), + INGTT(start + 0x2000), + INGTT(start + 0x3000)); + } +} + int main(int argc, char **argv) { struct pci_device *pci_dev; @@ -118,6 +137,10 @@ int main(int argc, char **argv) } aper_size = pci_dev->regions[2].size; + if (argc > 1 && !strncmp("-d", argv[1], 2)) { + pte_dump(aper_size, 0); + return 0; + } for (start = 0; start < aper_size; start += KB(4)) { uint64_t start_phys = get_phys(start); |