drm/i915/gen9+: Add has_ipc flag in device info structure

New Isochronous Priority Control (IPC) capability is introduced in newer
GEN platforms. This patch adds a device info flag to indicate if platform
supports IPC. Patch also sets this flag in supported platforms.

Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170817134529.2839-7-mahesh1.kumar@intel.com

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 0df2b0f..63ca2ff 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -798,7 +798,8 @@ struct intel_csr {
        func(cursor_needs_physical); \
        func(hws_needs_physical); \
        func(overlay_needs_physical); \
-       func(supports_tv);
+       func(supports_tv); \
+       func(has_ipc);
 
 struct sseu_dev_info {
        u8 slice_mask;
@@ -3119,6 +3120,8 @@ intel_info(const struct drm_i915_private *dev_priv)
 #define HAS_RUNTIME_PM(dev_priv) ((dev_priv)->info.has_runtime_pm)
 #define HAS_64BIT_RELOC(dev_priv) ((dev_priv)->info.has_64bit_reloc)
 
+#define HAS_IPC(dev_priv)               ((dev_priv)->info.has_ipc)
+
 /*
  * For now, anything with a GuC requires uCode loading, and then supports
  * command submission once loaded. But these are logically independent

diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index e95baf3..129877b 100644 (file)
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -482,6 +482,7 @@ static const struct intel_device_info intel_skylake_gt4_info __initconst = {
        .has_full_48bit_ppgtt = 1, \
        .has_reset_engine = 1, \
        .has_snoop = true, \
+       .has_ipc = 1, \
        GEN_DEFAULT_PIPEOFFSETS, \
        IVB_CURSOR_OFFSETS, \
        BDW_COLORS
@@ -505,6 +506,7 @@ static const struct intel_device_info intel_geminilake_info __initconst = {
        .platform = INTEL_KABYLAKE, \
        .has_csr = 1, \
        .has_guc = 1, \
+       .has_ipc = 1, \
        .ddb_size = 896
 
 static const struct intel_device_info intel_kabylake_gt1_info __initconst = {
@@ -530,6 +532,7 @@ static const struct intel_device_info intel_kabylake_gt3_info __initconst = {
        .platform = INTEL_COFFEELAKE, \
        .has_csr = 1, \
        .has_guc = 1, \
+       .has_ipc = 1, \
        .ddb_size = 896
 
 static const struct intel_device_info intel_coffeelake_gt1_info __initconst = {
@@ -556,6 +559,7 @@ static const struct intel_device_info intel_cannonlake_gt2_info __initconst = {
        .gt = 2,
        .ddb_size = 1024,
        .has_csr = 1,
+       .has_ipc = 1,
        .color = { .degamma_lut_size = 0, .gamma_lut_size = 1024 }
 };