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authorTerje Bergstrom <tbergstrom@nvidia.com>2013-03-22 18:34:03 +0400
committerThierry Reding <thierry.reding@avionic-design.de>2013-04-22 14:32:43 +0400
commit6579324a41cc414009a601738b70a53d6376325c (patch)
tree61b3491351217d07ff75851c6d989bf02b213383 /drivers/gpu/host1x/syncpt.h
parent7ede0b0bf3e2595d40d6195b6fe4c4dcef438830 (diff)
downloadlinux-6579324a41cc414009a601738b70a53d6376325c.tar.xz
gpu: host1x: Add channel support
Add support for host1x client modules, and host1x channels to submit work to the clients. 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.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/host1x/syncpt.h b/drivers/gpu/host1x/syncpt.h
index 17c1616de100..c99806130f2e 100644
--- a/drivers/gpu/host1x/syncpt.h
+++ b/drivers/gpu/host1x/syncpt.h
@@ -27,6 +27,9 @@
struct host1x;
+/* Reserved for replacing an expired wait with a NOP */
+#define HOST1X_SYNCPT_RESERVED 0
+
struct host1x_syncpt {
int id;
atomic_t min_val;
@@ -146,6 +149,9 @@ static inline int host1x_syncpt_is_valid(struct host1x_syncpt *sp)
return sp->id < host1x_syncpt_nb_pts(sp->host);
}
+/* 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);