diff options
| author | Marcin Kościelnicki | 2010-02-28 23:45:38 +0000 |
|---|---|---|
| committer | Ben Skeggs | 2010-03-10 16:06:57 +1000 |
| commit | 3bf777bf0ab112527cea103c3681934a9f41c03d (patch) | |
| tree | 2b17b620a31ea21f9427ec187411e2a28cfb84ab | |
| parent | c82b88d578847909797945824851a6a9a84f9c20 (diff) | |
drm/nv50: Make ctxprog wait until interrupt handler is done.
This will fix races between generated ctxprogs and interrupt handler.
Signed-off-by: Marcin Kościelnicki <koriakin@0x04.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv50_grctx.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_grctx.c b/drivers/gpu/drm/nouveau/nv50_grctx.c index d105fcd42ca0..9f909abfb5ab 100644 --- a/drivers/gpu/drm/nouveau/nv50_grctx.c +++ b/drivers/gpu/drm/nouveau/nv50_grctx.c @@ -64,6 +64,9 @@ #define CP_FLAG_ALWAYS ((2 * 32) + 13) #define CP_FLAG_ALWAYS_FALSE 0 #define CP_FLAG_ALWAYS_TRUE 1 +#define CP_FLAG_INTR ((2 * 32) + 15) +#define CP_FLAG_INTR_NOT_PENDING 0 +#define CP_FLAG_INTR_PENDING 1 #define CP_CTX 0x00100000 #define CP_CTX_COUNT 0x000f0000 @@ -214,6 +217,8 @@ nv50_grctx_init(struct nouveau_grctx *ctx) cp_name(ctx, cp_setup_save); cp_set (ctx, UNK1D, SET); cp_wait(ctx, STATUS, BUSY); + cp_wait(ctx, INTR, PENDING); + cp_bra (ctx, STATUS, BUSY, cp_setup_save); cp_set (ctx, UNK01, SET); cp_set (ctx, SWAP_DIRECTION, SAVE); |