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gpu: host1x: Expose syncpt and channel functionality

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Expose the buffer objects, syncpoint and channel functionality in the
public public header so that drivers can use them.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding
2013-09-24 16:30:32 +02:00
parent 53fa7f7204
commit 35d747a81d
14 changed files with 211 additions and 254 deletions
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40
drivers/gpu/host1x/syncpt.h
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@@ -20,6 +20,7 @@
#define __HOST1X_SYNCPT_H
#include <linux/atomic.h>
#include <linux/host1x.h>
#include <linux/kernel.h>
#include <linux/sched.h>
@@ -50,25 +51,6 @@ int host1x_syncpt_init(struct host1x *host);
/* Free sync point array */
void host1x_syncpt_deinit(struct host1x *host);
/*
* Read max. It indicates how many operations there are in queue, either in
* channel or in a software thread.
* */
static inline u32 host1x_syncpt_read_max(struct host1x_syncpt *sp)
{
smp_rmb();
return (u32)atomic_read(&sp->max_val);
}
/*
* Read min, which is a shadow of the current sync point value in hardware.
*/
static inline u32 host1x_syncpt_read_min(struct host1x_syncpt *sp)
{
smp_rmb();
return (u32)atomic_read(&sp->min_val);
}
/* Return number of sync point supported. */
int host1x_syncpt_nb_pts(struct host1x *host);
@@ -112,9 +94,6 @@ static inline bool host1x_syncpt_idle(struct host1x_syncpt *sp)
return (min == max);
}
/* Return pointer to struct denoting sync point id. */
struct host1x_syncpt *host1x_syncpt_get(struct host1x *host, u32 id);
/* Load current value from hardware to the shadow register. */
u32 host1x_syncpt_load(struct host1x_syncpt *sp);
@@ -130,16 +109,9 @@ void host1x_syncpt_restore(struct host1x *host);
/* Read current wait base value into shadow register and return it. */
u32 host1x_syncpt_load_wait_base(struct host1x_syncpt *sp);
/* Request incrementing a sync point. */
int host1x_syncpt_incr(struct host1x_syncpt *sp);
/* Indicate future operations by incrementing the sync point max. */
u32 host1x_syncpt_incr_max(struct host1x_syncpt *sp, u32 incrs);
/* Wait until sync point reaches a threshold value, or a timeout. */
int host1x_syncpt_wait(struct host1x_syncpt *sp, u32 thresh,
long timeout, u32 *value);
/* Check if sync point id is valid. */
static inline int host1x_syncpt_is_valid(struct host1x_syncpt *sp)
{
@@ -149,14 +121,4 @@ static inline int host1x_syncpt_is_valid(struct host1x_syncpt *sp)
/* Patch a wait by replacing it with a wait for syncpt 0 value 0 */
int host1x_syncpt_patch_wait(struct host1x_syncpt *sp, void *patch_addr);
/* Return id of the sync point */
u32 host1x_syncpt_id(struct host1x_syncpt *sp);
/* Allocate a sync point for a device. */
struct host1x_syncpt *host1x_syncpt_request(struct device *dev,
bool client_managed);
/* Free a sync point. */
void host1x_syncpt_free(struct host1x_syncpt *sp);
#endif