From 35d747a81d7eb824bd0c3476cd0c564b52ad5353 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 24 Sep 2013 16:30:32 +0200 Subject: gpu: host1x: Expose syncpt and channel functionality Expose the buffer objects, syncpoint and channel functionality in the public public header so that drivers can use them. Signed-off-by: Thierry Reding --- drivers/gpu/host1x/syncpt.h | 40 +--------------------------------------- 1 file changed, 1 insertion(+), 39 deletions(-) (limited to 'drivers/gpu/host1x/syncpt.h') diff --git a/drivers/gpu/host1x/syncpt.h b/drivers/gpu/host1x/syncpt.h index 267c0b9d3647..4eb933a497fd 100644 --- a/drivers/gpu/host1x/syncpt.h +++ b/drivers/gpu/host1x/syncpt.h @@ -20,6 +20,7 @@ #define __HOST1X_SYNCPT_H #include +#include #include #include @@ -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 -- cgit v1.2.2 From f5a954fed9b3eb04973ede72c50c66157fa9e15b Mon Sep 17 00:00:00 2001 From: Arto Merilainen Date: Mon, 14 Oct 2013 15:21:53 +0300 Subject: gpu: host1x: Add syncpoint base support This patch adds support for hardware syncpoint bases. This creates a simple mechanism to stall the command FIFO until an operation is completed. Signed-off-by: Arto Merilainen Reviewed-by: Terje Bergstrom Signed-off-by: Thierry Reding --- drivers/gpu/host1x/syncpt.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/gpu/host1x/syncpt.h') diff --git a/drivers/gpu/host1x/syncpt.h b/drivers/gpu/host1x/syncpt.h index 4eb933a497fd..9056465ecd3f 100644 --- a/drivers/gpu/host1x/syncpt.h +++ b/drivers/gpu/host1x/syncpt.h @@ -31,6 +31,11 @@ struct host1x; /* Reserved for replacing an expired wait with a NOP */ #define HOST1X_SYNCPT_RESERVED 0 +struct host1x_syncpt_base { + unsigned int id; + bool requested; +}; + struct host1x_syncpt { int id; atomic_t min_val; @@ -40,6 +45,7 @@ struct host1x_syncpt { bool client_managed; struct host1x *host; struct device *dev; + struct host1x_syncpt_base *base; /* interrupt data */ struct host1x_syncpt_intr intr; -- cgit v1.2.2