summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/msm/msm_ringbuffer.h
diff options
context:
space:
mode:
authorThomas Gleixner2017-11-23 16:29:05 +0100
committerThomas Gleixner2017-11-23 16:29:05 +0100
commit866c9b94ef968445c52214b3748ecc52a8491bca (patch)
tree1fd073acb9be8e89e77b35c41e2964ac6feabee6 /drivers/gpu/drm/msm/msm_ringbuffer.h
parenttimekeeping: Remove CONFIG_GENERIC_TIME_VSYSCALL_OLD (diff)
parenttreewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts (diff)
downloadkernel-qcow2-linux-866c9b94ef968445c52214b3748ecc52a8491bca.tar.gz
kernel-qcow2-linux-866c9b94ef968445c52214b3748ecc52a8491bca.tar.xz
kernel-qcow2-linux-866c9b94ef968445c52214b3748ecc52a8491bca.zip
Merge tag 'for-linus-timers-conversion-final-v4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux into timers/urgent
Pull the last batch of manual timer conversions from Kees Cook: - final batch of "non trivial" timer conversions (multi-tree dependencies, things Coccinelle couldn't handle, etc). - treewide conversions via Coccinelle, in 4 steps: - DEFINE_TIMER() functions converted to struct timer_list * argument - init_timer() -> setup_timer() - setup_timer() -> timer_setup() - setup_timer() -> timer_setup() (with a single embedded structure) - deprecated timer API removals (init_timer(), setup_*timer()) - finalization of new API (remove global casts)
Diffstat (limited to 'drivers/gpu/drm/msm/msm_ringbuffer.h')
-rw-r--r--drivers/gpu/drm/msm/msm_ringbuffer.h33
1 files changed, 27 insertions, 6 deletions
diff --git a/drivers/gpu/drm/msm/msm_ringbuffer.h b/drivers/gpu/drm/msm/msm_ringbuffer.h
index 6e0e1049fa4f..cffce094aecb 100644
--- a/drivers/gpu/drm/msm/msm_ringbuffer.h
+++ b/drivers/gpu/drm/msm/msm_ringbuffer.h
@@ -20,14 +20,31 @@
#include "msm_drv.h"
+#define rbmemptr(ring, member) \
+ ((ring)->memptrs_iova + offsetof(struct msm_rbmemptrs, member))
+
+struct msm_rbmemptrs {
+ volatile uint32_t rptr;
+ volatile uint32_t fence;
+};
+
struct msm_ringbuffer {
struct msm_gpu *gpu;
- int size;
+ int id;
struct drm_gem_object *bo;
- uint32_t *start, *end, *cur;
+ uint32_t *start, *end, *cur, *next;
+ struct list_head submits;
+ uint64_t iova;
+ uint32_t seqno;
+ uint32_t hangcheck_fence;
+ struct msm_rbmemptrs *memptrs;
+ uint64_t memptrs_iova;
+ struct msm_fence_context *fctx;
+ spinlock_t lock;
};
-struct msm_ringbuffer *msm_ringbuffer_new(struct msm_gpu *gpu, int size);
+struct msm_ringbuffer *msm_ringbuffer_new(struct msm_gpu *gpu, int id,
+ void *memptrs, uint64_t memptrs_iova);
void msm_ringbuffer_destroy(struct msm_ringbuffer *ring);
/* ringbuffer helpers (the parts that are same for a3xx/a2xx/z180..) */
@@ -35,9 +52,13 @@ void msm_ringbuffer_destroy(struct msm_ringbuffer *ring);
static inline void
OUT_RING(struct msm_ringbuffer *ring, uint32_t data)
{
- if (ring->cur == ring->end)
- ring->cur = ring->start;
- *(ring->cur++) = data;
+ /*
+ * ring->next points to the current command being written - it won't be
+ * committed as ring->cur until the flush
+ */
+ if (ring->next == ring->end)
+ ring->next = ring->start;
+ *(ring->next++) = data;
}
#endif /* __MSM_RINGBUFFER_H__ */