diff options
| author | Abdiel Janulgue <[email protected]> | 2015-06-16 13:39:42 +0300 |
|---|---|---|
| committer | Daniel Vetter <[email protected]> | 2015-07-06 10:26:13 +0200 |
| commit | 6922528a04a810b2889e82a4dc17eab920379117 (patch) | |
| tree | 21be41faa6e6516a82a93c3fd07fed08882512d6 | |
| parent | 4c436d55b279bbc6b02aac02e7dc683fc09f884e (diff) | |
drm/i915: Enable resource streamer on Execlists
GEN8 and above uses Execlists by default instead of the legacy
ringbuffer for batch execution. This patch enables the resource
streamer bits when required.
Patch is based on the initial work by Minu Mathai <[email protected]>
This version also adds the required bits to enable GEN8 Resource
Streamer context save and restore for Execlists.
Cc: [email protected]
Signed-off-by: Abdiel Janulgue <[email protected]>
Reviewed-by: Arun Siluvery <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/i915/intel_lrc.c | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_lrc.h | 1 |
2 files changed, 7 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index 22e9f85f40e4..0160bec1e7ba 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -1426,7 +1426,10 @@ static int gen8_emit_bb_start(struct drm_i915_gem_request *req, return ret; /* FIXME(BDW): Address space and security selectors. */ - intel_logical_ring_emit(ringbuf, MI_BATCH_BUFFER_START_GEN8 | (ppgtt<<8)); + intel_logical_ring_emit(ringbuf, MI_BATCH_BUFFER_START_GEN8 | + (ppgtt<<8) | + (dispatch_flags & I915_DISPATCH_RS ? + MI_BATCH_RESOURCE_STREAMER : 0)); intel_logical_ring_emit(ringbuf, lower_32_bits(offset)); intel_logical_ring_emit(ringbuf, upper_32_bits(offset)); intel_logical_ring_emit(ringbuf, MI_NOOP); @@ -2019,7 +2022,8 @@ populate_lr_context(struct intel_context *ctx, struct drm_i915_gem_object *ctx_o reg_state[CTX_CONTEXT_CONTROL] = RING_CONTEXT_CONTROL(ring); reg_state[CTX_CONTEXT_CONTROL+1] = _MASKED_BIT_ENABLE(CTX_CTRL_INHIBIT_SYN_CTX_SWITCH | - CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT); + CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT | + CTX_CTRL_RS_CTX_ENABLE); reg_state[CTX_RING_HEAD] = RING_HEAD(ring->mmio_base); reg_state[CTX_RING_HEAD+1] = 0; reg_state[CTX_RING_TAIL] = RING_TAIL(ring->mmio_base); diff --git a/drivers/gpu/drm/i915/intel_lrc.h b/drivers/gpu/drm/i915/intel_lrc.h index f59940ac1cfc..d3dd3ac33aef 100644 --- a/drivers/gpu/drm/i915/intel_lrc.h +++ b/drivers/gpu/drm/i915/intel_lrc.h @@ -32,6 +32,7 @@ #define RING_CONTEXT_CONTROL(ring) ((ring)->mmio_base+0x244) #define CTX_CTRL_INHIBIT_SYN_CTX_SWITCH (1 << 3) #define CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT (1 << 0) +#define CTX_CTRL_RS_CTX_ENABLE (1 << 1) #define RING_CONTEXT_STATUS_BUF(ring) ((ring)->mmio_base+0x370) #define RING_CONTEXT_STATUS_PTR(ring) ((ring)->mmio_base+0x3a0) |