Doug / smarc-fsl-linux-kernel

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Commit 1c2f61d40b691789626489fa947a3e003c9a84be

Authored by David S. Miller
1 parent dc4ff585ff
Exists in master and in 7 other branches imx_3.0.35_4.1.0, imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga, smarc-l5.0.0_1.0.0-ga

sparc64: Don't hook up pcr_ops on spitfire chips. 

They can't be used for profiling and NMI watchdog currently
since they lack the counter overflow interrupt.

Signed-off-by: David S. Miller <davem@davemloft.net>

Showing 1 changed file with 6 additions and 1 deletions Side-by-side Diff

arch/sparc/kernel/pcr.c
Diff comments   View file @ 1c2f61d
... ... @@ -133,11 +133,16 @@
133 133  
134 134 case cheetah:
135 135 case cheetah_plus:
136   - case spitfire:
137 136 pcr_ops = &direct_pcr_ops;
138 137 pcr_enable = PCR_SUN4U_ENABLE;
139 138 break;
140 139  
  140 + case spitfire:
  141 + /* UltraSPARC-I/II and derivatives lack a profile
  142 + * counter overflow interrupt so we can't make use of
  143 + * their hardware currently.
  144 + */
  145 + /* fallthrough */
141 146 default:
142 147 err = -ENODEV;
143 148 goto out_unregister;