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| author | Terje Bergstrom <tbergstrom@nvidia.com> | 2013-03-22 15:34:02 +0100 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@avionic-design.de> | 2013-04-22 12:32:42 +0200 |
| commit | 7ede0b0bf3e2595d40d6195b6fe4c4dcef438830 (patch) | |
| tree | eb59a94a3892bd41ae810b1726f7e7ae9de96812 /drivers/gpu/host1x/syncpt.h | |
| parent | gpu: host1x: Add host1x driver (diff) | |
| download | linux-7ede0b0bf3e2595d40d6195b6fe4c4dcef438830.tar.xz linux-7ede0b0bf3e2595d40d6195b6fe4c4dcef438830.zip | |
gpu: host1x: Add syncpoint wait and interrupts
Add support for sync point interrupts, and sync point wait. Sync
point wait used interrupts for unblocking wait.
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Diffstat (limited to 'drivers/gpu/host1x/syncpt.h')
| -rw-r--r-- | drivers/gpu/host1x/syncpt.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/host1x/syncpt.h b/drivers/gpu/host1x/syncpt.h index efa2b6e659d6..17c1616de100 100644 --- a/drivers/gpu/host1x/syncpt.h +++ b/drivers/gpu/host1x/syncpt.h @@ -23,6 +23,8 @@ #include <linux/kernel.h> #include <linux/sched.h> +#include "intr.h" + struct host1x; struct host1x_syncpt { @@ -34,6 +36,9 @@ struct host1x_syncpt { int client_managed; struct host1x *host; struct device *dev; + + /* interrupt data */ + struct host1x_syncpt_intr intr; }; /* Initialize sync point array */ @@ -113,6 +118,9 @@ void host1x_syncpt_cpu_incr(struct host1x_syncpt *sp); /* Load current value from hardware to the shadow register. */ u32 host1x_syncpt_load(struct host1x_syncpt *sp); +/* Check if the given syncpoint value has already passed */ +bool host1x_syncpt_is_expired(struct host1x_syncpt *sp, u32 thresh); + /* Save host1x sync point state into shadow registers. */ void host1x_syncpt_save(struct host1x *host); @@ -128,6 +136,10 @@ void 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) { |