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authorJeremy Kerr <jk@ozlabs.org>2007-12-20 16:39:59 +0900
committerPaul Mackerras <paulus@samba.org>2007-12-21 19:46:20 +1100
commitd6ad39bc53521275d14fde86bfb94d9b2ddb7a08 (patch)
tree07dcc592b343395cb7fbfb3053aa21103fb94352 /include/asm-powerpc
parent8af30675c3e7b945bbaf6f57b724f246e56eb209 (diff)
[POWERPC] spufs: rework class 0 and 1 interrupt handling
Based on original patches from Arnd Bergmann <arnd.bergman@de.ibm.com>; and Luke Browning <lukebr@linux.vnet.ibm.com> Currently, spu contexts need to be loaded to the SPU in order to take class 0 and class 1 exceptions. This change makes the actual interrupt-handlers much simpler (ie, set the exception information in the context save area), and defers the handling code to the spufs_handle_class[01] functions, called from spufs_run_spu. This should improve the concurrency of the spu scheduling leading to greater SPU utilization when SPUs are overcommited. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc')
-rw-r--r--include/asm-powerpc/spu.h3
-rw-r--r--include/asm-powerpc/spu_csa.h2
2 files changed, 1 insertions, 4 deletions
diff --git a/include/asm-powerpc/spu.h b/include/asm-powerpc/spu.h
index 816e3dc1f66..277460476ae 100644
--- a/include/asm-powerpc/spu.h
+++ b/include/asm-powerpc/spu.h
@@ -146,7 +146,6 @@ struct spu {
void (* ibox_callback)(struct spu *spu);
void (* stop_callback)(struct spu *spu);
void (* mfc_callback)(struct spu *spu);
- void (* dma_callback)(struct spu *spu, int type);
char irq_c0[8];
char irq_c1[8];
@@ -197,8 +196,6 @@ struct cbe_spu_info {
extern struct cbe_spu_info cbe_spu_info[];
void spu_init_channels(struct spu *spu);
-int spu_irq_class_0_bottom(struct spu *spu);
-int spu_irq_class_1_bottom(struct spu *spu);
void spu_irq_setaffinity(struct spu *spu, int cpu);
void spu_setup_kernel_slbs(struct spu *spu, struct spu_lscsa *lscsa,
diff --git a/include/asm-powerpc/spu_csa.h b/include/asm-powerpc/spu_csa.h
index 34da5c68517..0ab6bff8607 100644
--- a/include/asm-powerpc/spu_csa.h
+++ b/include/asm-powerpc/spu_csa.h
@@ -254,7 +254,7 @@ struct spu_state {
u64 spu_chnldata_RW[32];
u32 spu_mailbox_data[4];
u32 pu_mailbox_data[1];
- u64 dar, dsisr;
+ u64 dar, dsisr, class_0_pending;
unsigned long suspend_time;
spinlock_t register_lock;
};