diff options
author | Thomas Hellstrom <thomas@tungstengraphics.com> | 2006-07-11 14:37:37 +0000 |
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committer | Thomas Hellstrom <thomas@tungstengraphics.com> | 2006-07-11 14:37:37 +0000 |
commit | 126673d62afad6da84e833daa644a352d88a5e37 (patch) | |
tree | 360d6186280ab586fe748bb9bccc7db298117841 /linux-core/r128_drv.c | |
parent | a392349691ec2aa3f83d8a9fc4a485e4dbef4bbe (diff) |
Keep hashed user tokens, with the following changes:
32-bit physical device addresses are mapped directly to user-tokens. No
duplicate maps are allowed, and the addresses are assumed to be outside
of the range 0x10000000 through 0x30000000. The user-token is identical
to the 32-bit physical start-address of the map.
64-bit physical device addressed are mapped to user-tokens in the range
0x10000000 to 0x30000000 with page-size increments. The user_token should
not be interpreted as an address.
Other map types, like upcoming TTM maps are mapped to user-tokens in the
range
0x10000000 to 0x30000000 with page-size increments. The user_token should
not be interpreted as an address.
This keeps compatibility with buggy drivers, while still implementing a
hashed map lookup. The SiS and via device driver major bumps are
reverted.
Diffstat (limited to 'linux-core/r128_drv.c')
0 files changed, 0 insertions, 0 deletions