On 17/07/2015 19:13, Arun Siluvery wrote:
User space clients need to know when the pooled EU feature is present
and enabled on the hardware so that they can adapt work submissions.
Create a new device info flag for this purpose, and create a new GETPARAM
entry to allow user space to query its setting.
Set has_pooled_eu to true in the Broxton static device info - Broxton
supports the feature in hardware and the driver will enable it by
default.
Signed-off-by: Jeff McGee <jeff.mcgee@xxxxxxxxx>
Signed-off-by: Arun Siluvery <arun.siluvery@xxxxxxxxxxxxxxx>
---
Please ignore this patch, this is squashed with Patch4 "drm/i915:bxt:
Enable Pooled EU support" to keep all enabling changes in the same place
otherwise we would've announced support to userspace before enabling it
in kernel.
regards
Arun
drivers/gpu/drm/i915/i915_dma.c | 3 +++
drivers/gpu/drm/i915/i915_drv.c | 1 +
drivers/gpu/drm/i915/i915_drv.h | 5 ++++-
include/uapi/drm/i915_drm.h | 1 +
4 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 5e63076..6c31beb 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -170,6 +170,9 @@ static int i915_getparam(struct drm_device *dev, void *data,
case I915_PARAM_HAS_RESOURCE_STREAMER:
value = HAS_RESOURCE_STREAMER(dev);
break;
+ case I915_PARAM_HAS_POOLED_EU:
+ value = HAS_POOLED_EU(dev);
+ break;
default:
DRM_DEBUG("Unknown parameter %d\n", param->param);
return -EINVAL;
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index e44dc0d..213f74d 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -389,6 +389,7 @@ static const struct intel_device_info intel_broxton_info = {
.num_pipes = 3,
.has_ddi = 1,
.has_fbc = 1,
+ .has_pooled_eu = 1,
GEN_DEFAULT_PIPEOFFSETS,
IVB_CURSOR_OFFSETS,
};
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 768d1db..32850a8 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -775,7 +775,8 @@ struct intel_csr {
func(supports_tv) sep \
func(has_llc) sep \
func(has_ddi) sep \
- func(has_fpga_dbg)
+ func(has_fpga_dbg) sep \
+ func(has_pooled_eu)
#define DEFINE_FLAG(name) u8 name:1
#define SEP_SEMICOLON ;
@@ -2549,6 +2550,8 @@ struct drm_i915_cmd_table {
#define HAS_RESOURCE_STREAMER(dev) (IS_HASWELL(dev) || \
INTEL_INFO(dev)->gen >= 8)
+#define HAS_POOLED_EU(dev) (INTEL_INFO(dev)->has_pooled_eu)
+
#define INTEL_PCH_DEVICE_ID_MASK 0xff00
#define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
#define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h
index e7c29f1..9649577 100644
--- a/include/uapi/drm/i915_drm.h
+++ b/include/uapi/drm/i915_drm.h
@@ -356,6 +356,7 @@ typedef struct drm_i915_irq_wait {
#define I915_PARAM_EU_TOTAL 34
#define I915_PARAM_HAS_GPU_RESET 35
#define I915_PARAM_HAS_RESOURCE_STREAMER 36
+#define I915_PARAM_HAS_POOLED_EU 37
typedef struct drm_i915_getparam {
int param;
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