xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/radeon: 9800 SE has only one quadpipe

Browse Source 
Although these cards have 2 pipelines on the silicon only
the first passed the QA and the other should be disabled.

http://www.digital-daily.com/video/ati-radeon9800se/
http://www.rojakpot.com/showarticle.aspx?artno=101&pgno=1

agd5f: add some other SE cards as well; fix up kms

Signed-off-by: Tormod Volden <debian.tormod@gmail.com>
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Tormod Volden
2010-04-22 16:57:32 -04:00
committed by Dave Airlie
parent 9c950a43dd
commit 94f7bf6473
3 changed files with 15 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/radeon/r420.c
View File

@@ -58,6 +58,12 @@ void r420_pipes_init(struct radeon_device *rdev)
/* get max number of pipes */
gb_pipe_select = RREG32(0x402C);
num_pipes = ((gb_pipe_select >> 12) & 3) + 1;
/* SE chips have 1 pipe */
if ((rdev->pdev->device == 0x5e4c) ||
(rdev->pdev->device == 0x5e4f))
num_pipes = 1;
rdev->num_gb_pipes = num_pipes;
tmp = 0;
switch (num_pipes) {