[PATCH] drm/i915: Move device_info.has_snoop into the static tables

[Chris Wilson]

Currently we define any !llc machine as using snoop instead. However,
some platforms run into trouble using snoop that we would like to
disable, and to do so easily we want to be able to use the static
device_info tables.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/i915_pci.c          | 7 +++++++
 drivers/gpu/drm/i915/intel_device_info.c | 2 +-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index d05aab60c1fb..881b5d6708aa 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -63,6 +63,7 @@
 	.hws_needs_physical = 1, \
 	.unfenced_needs_alignment = 1, \
 	.ring_mask = RENDER_RING, \
+	.has_snoop = true, \
 	GEN_DEFAULT_PIPEOFFSETS, \
 	CURSOR_OFFSETS
 
@@ -95,6 +96,7 @@ static const struct intel_device_info intel_i865g_info __initconst = {
 	.gen = 3, .num_pipes = 2, \
 	.has_gmch_display = 1, \
 	.ring_mask = RENDER_RING, \
+	.has_snoop = true, \
 	GEN_DEFAULT_PIPEOFFSETS, \
 	CURSOR_OFFSETS
 
@@ -157,6 +159,7 @@ static const struct intel_device_info intel_pineview_info __initconst = {
 	.has_hotplug = 1, \
 	.has_gmch_display = 1, \
 	.ring_mask = RENDER_RING, \
+	.has_snoop = true, \
 	GEN_DEFAULT_PIPEOFFSETS, \
 	CURSOR_OFFSETS
 
@@ -197,6 +200,7 @@ static const struct intel_device_info intel_gm45_info __initconst = {
 	.has_hotplug = 1, \
 	.has_gmbus_irq = 1, \
 	.ring_mask = RENDER_RING | BSD_RING, \
+	.has_snoop = true, \
 	GEN_DEFAULT_PIPEOFFSETS, \
 	CURSOR_OFFSETS
 
@@ -320,6 +324,7 @@ static const struct intel_device_info intel_valleyview_info __initconst = {
 	.has_hotplug = 1,
 	.has_aliasing_ppgtt = 1,
 	.has_full_ppgtt = 1,
+	.has_snoop = true,
 	.ring_mask = RENDER_RING | BSD_RING | BLT_RING,
 	.display_mmio_offset = VLV_DISPLAY_BASE,
 	GEN_DEFAULT_PIPEOFFSETS,
@@ -411,6 +416,7 @@ static const struct intel_device_info intel_cherryview_info __initconst = {
 	.has_aliasing_ppgtt = 1,
 	.has_full_ppgtt = 1,
 	.has_reset_engine = 1,
+	.has_snoop = true,
 	.display_mmio_offset = VLV_DISPLAY_BASE,
 	GEN_CHV_PIPEOFFSETS,
 	CURSOR_OFFSETS,
@@ -473,6 +479,7 @@ static const struct intel_device_info intel_skylake_gt4_info __initconst = {
 	.has_full_ppgtt = 1, \
 	.has_full_48bit_ppgtt = 1, \
 	.has_reset_engine = 1, \
+	.has_snoop = true, \
 	GEN_DEFAULT_PIPEOFFSETS, \
 	IVB_CURSOR_OFFSETS, \
 	BDW_COLORS
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index 5f91ddc78c7a..50f78cf31139 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -412,7 +412,7 @@ void intel_device_info_runtime_init(struct drm_i915_private *dev_priv)
 	else if (INTEL_INFO(dev_priv)->gen >= 9)
 		gen9_sseu_info_init(dev_priv);
 
-	info->has_snoop = !info->has_llc;
+	GEM_BUG_ON(info->has_snoop != !info->has_llc);
 
 	DRM_DEBUG_DRIVER("slice mask: %04x\n", info->sseu.slice_mask);
 	DRM_DEBUG_DRIVER("slice total: %u\n", hweight8(info->sseu.slice_mask));
-- 
2.14.1