nv-tegra-mirror/linux-nv-oot
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nv-oot.git synced 2025-12-24 10:11:26 +03:00
Code Issues Packages Projects Releases Wiki Activity

gpu: host1x: Rewrite syncpoint interrupt handling

Browse Source 
Move from the old, complex intr handling code to a new implementation
based on dma_fences. While there is a fair bit of churn to get there,
the new implementation is much simpler and likely faster as well due
to allowing signaling directly from interrupt context.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Change-Id: I81c47fa1946679813f90e3fd8e1d1e9d6342143e
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2786635
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Mikko Perttunen
2021-09-07 19:15:08 +03:00
committed by Laxman Dewangan
parent 303267d828
commit 33a40367c0
9 changed files with 166 additions and 497 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/gpu/host1x/dev.h
View File

@@ -74,8 +74,7 @@ struct host1x_syncpt_ops {
};
struct host1x_intr_ops {
int (*init_host_sync)(struct host1x *host, u32 cpm,
void (*syncpt_thresh_work)(struct work_struct *work));
int (*init_host_sync)(struct host1x *host, u32 cpm);
void (*set_syncpt_threshold)(
struct host1x *host, unsigned int id, u32 thresh);
void (*enable_syncpt_intr)(struct host1x *host, unsigned int id);
@@ -125,6 +124,7 @@ struct host1x {
void __iomem *regs;
void __iomem *hv_regs; /* hypervisor region */
void __iomem *common_regs;
int syncpt_irq;
struct host1x_syncpt *syncpt;
struct host1x_syncpt_base *bases;
struct device *dev;
@@ -138,7 +138,6 @@ struct host1x {
dma_addr_t iova_end;
struct mutex intr_mutex;
int intr_syncpt_irq;
const struct host1x_syncpt_ops *syncpt_op;
const struct host1x_intr_ops *intr_op;
@@ -216,10 +215,9 @@ static inline void host1x_hw_syncpt_enable_protection(struct host1x *host)
return host->syncpt_op->enable_protection(host);
}
static inline int host1x_hw_intr_init_host_sync(struct host1x *host, u32 cpm,
void (*syncpt_thresh_work)(struct work_struct *))
static inline int host1x_hw_intr_init_host_sync(struct host1x *host, u32 cpm)
{
return host->intr_op->init_host_sync(host, cpm, syncpt_thresh_work);
return host->intr_op->init_host_sync(host, cpm);
}
static inline void host1x_hw_intr_set_syncpt_threshold(struct host1x *host,