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| author | Philipp Zabel <p.zabel@pengutronix.de> | 2017-05-08 12:45:52 +0200 |
|---|---|---|
| committer | Philipp Zabel <p.zabel@pengutronix.de> | 2017-06-08 08:57:19 +0200 |
| commit | 93adc8b5705c14d16be382d43699d2ba71248a4b (patch) | |
| tree | 22324a2cf6b2948a903e609b80d7741aa88b3ae6 /drivers/gpu/ipu-v3/ipu-prv.h | |
| parent | e1e9733cd37908a9ba61e29154561f0c81420e06 (diff) | |
| download | blackbird-op-linux-93adc8b5705c14d16be382d43699d2ba71248a4b.tar.gz blackbird-op-linux-93adc8b5705c14d16be382d43699d2ba71248a4b.zip | |
gpu: ipu-v3: allocate ipuv3_channels as needed
Most of the 64 IPUv3 DMA channels are never used, some of them (channels
16, 30, 32, 34-39, and 53-63) are even marked as reserved.
Allocate the channel control structure only when a channel is actually
requested, replace the fixed size array with a list, and remove the
unused enabled and busy fields from the ipuv3_channel structure.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Diffstat (limited to 'drivers/gpu/ipu-v3/ipu-prv.h')
| -rw-r--r-- | drivers/gpu/ipu-v3/ipu-prv.h | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/gpu/ipu-v3/ipu-prv.h b/drivers/gpu/ipu-v3/ipu-prv.h index ca2a223a0d1e..b6e22d64159f 100644 --- a/drivers/gpu/ipu-v3/ipu-prv.h +++ b/drivers/gpu/ipu-v3/ipu-prv.h @@ -157,11 +157,8 @@ enum ipu_modules { struct ipuv3_channel { unsigned int num; - - bool enabled; - bool busy; - struct ipu_soc *ipu; + struct list_head list; }; struct ipu_cpmem; @@ -184,6 +181,7 @@ struct ipu_soc { enum ipuv3_type ipu_type; spinlock_t lock; struct mutex channel_lock; + struct list_head channels; void __iomem *cm_reg; void __iomem *idmac_reg; @@ -193,8 +191,6 @@ struct ipu_soc { struct clk *clk; - struct ipuv3_channel channel[64]; - int irq_sync; int irq_err; struct irq_domain *domain; |
