rendercopy/bdw: Fix the original implementation

For posterity, I've squashed these commits against Damien's request.

rendercopy/gen8: Fix the include guards

rendercopy/gen8: Update the 3DSTATE_MULTISAMPLE opcode

The opcode has changed in BDW.

rendercopy/gen8: Add the VF_TOPOLOGY state

The primitive type has moved out of the 3DPRIMITIVE to its own state,
VF_TOPOLOGY.

rendercopy/gen8: Fixup 3STATE_PS

Update the state to the latest BSpec, in particular the thread count was
using a wrong shift and we were missing kernel2 offset.

rendercopy/gen8: Update 3DSTATE_BASE_ADDRESS

This state has seen its fields moved around a bit, follow the BSpec.

rendercopy/gen8: Allocate 64 VUEs

The simulator screams at us if we try to allocate less than that.

rendercopy/gen8: Surface states have to be 64 bytes a aligned

rendercopy/gen8: Vertical/horizontal align 2 does not exist any more

So set them to 4. This should not matter with rendercopy (which is not
using compressed textures), but it makes the simulator moan.

rendercopy/gen8: Make sure the vertex buffer is 8 bytes aligned

rendercopy/gen8: Adjust 3DSTATE_VERTEX_BUFFERS for gen8

The address of the buffer is now on 48 bits. Also the size was computed
as offset + size where the field is really the size of the buffer
itself, not the end address.

rendercopy/gen8: Update the SF/SBE states for gen8

gen8 has a few changes around those states and a new ones RASTER and
SBE_SWIZ.

rendercopy/gen8: Add the PS_EXTRA and PS_BLEND states

rendercopy/gen8: Fix building with DEBUG_RENDERCOPY defined

The forward declaration was missing the final ';'. Let's move the whole
function at the top instead.

rendercopy/gen8: Update the PS and CONSTANT_PS states

rendercopy/gen8: Fix the red channel selection

Make it output red.

rendercopy/gen8: Update the write -1 shader

With the latest assembler changes from Haihao.

rendercopy/gen8: Remove blit.g8a

There is no diff between this file and blig.g7a. Remove it.

rendercopy/gen8: Fix the surface relocation offset

The surface base address is now at dwords 8/9 so the relocation has to
mirror the change.

rendercopy/gen8: Add the VF_INSTANCING state

Should work without, but doesn't hurt to add it.

rendercopy/gen8: Set the Attribule enable field in PS_EXTRA

When the SF is set up to output some attributes, the pixel shader also
have to be told there's attributes to care about.

rendercopy/gen8: Set the force bits to read URB offset/length

If we want to override the URB offset/length in the SBE state itself, we
need to set the force bits on (new in gen8)

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>

lib/gen8_render.h

@@ -1,5 +1,5 @@
-#ifndef GEN7_RENDER_H
-#define GEN7_RENDER_H
+#ifndef GEN8_RENDER_H
+#define GEN8_RENDER_H
 
 #include "gen6_render.h"
 
@@ -13,7 +13,16 @@
 #define GEN7_3DSTATE_DEPTH_BUFFER		GEN6_3D(3, 0, 0x05)
 #define GEN7_3DSTATE_STENCIL_BUFFER		GEN6_3D(3, 0, 0x06)
 #define GEN7_3DSTATE_HIER_DEPTH_BUFFER		GEN6_3D(3, 0, 0x07)
+#define GEN8_3DSTATE_MULTISAMPLE		GEN6_3D(3, 0, 0x0d)
+# define GEN8_3DSTATE_MULTISAMPLE_PIXEL_LOCATION_CENTER		(0 << 4)
+# define GEN8_3DSTATE_MULTISAMPLE_PIXEL_LOCATION_UPPER_LEFT	(1 << 4)
+# define GEN8_3DSTATE_MULTISAMPLE_NUMSAMPLES_1			(0 << 1)
+# define GEN8_3DSTATE_MULTISAMPLE_NUMSAMPLES_2			(1 << 1)
+# define GEN8_3DSTATE_MULTISAMPLE_NUMSAMPLES_4			(2 << 1)
+# define GEN8_3DSTATE_MULTISAMPLE_NUMSAMPLES_8			(3 << 1)
+# define GEN9_3DSTATE_MULTISAMPLE_NUMSAMPLES_16			(4 << 1)
 
+#define GEN8_3DSTATE_VF_INSTANCING		GEN6_3D(3, 0, 0x49)
 #define GEN7_3DSTATE_GS				GEN6_3D(3, 0, 0x11)
 #define GEN7_3DSTATE_CONSTANT_GS		GEN6_3D(3, 0, 0x16)
 #define GEN7_3DSTATE_CONSTANT_HS		GEN6_3D(3, 0, 0x19)
@@ -23,9 +32,24 @@
 #define GEN7_3DSTATE_DS				GEN6_3D(3, 0, 0x1d)
 #define GEN7_3DSTATE_STREAMOUT			GEN6_3D(3, 0, 0x1e)
 #define GEN7_3DSTATE_SBE			GEN6_3D(3, 0, 0x1f)
+# define GEN8_SBE_FORCE_URB_ENTRY_READ_LENGTH	(1 << 29)
+# define GEN8_SBE_FORCE_URB_ENTRY_READ_OFFSET	(1 << 28)
+# define GEN7_SBE_NUM_OUTPUTS_SHIFT             22
+# define GEN7_SBE_URB_ENTRY_READ_LENGTH_SHIFT   11
+# define GEN8_SBE_URB_ENTRY_READ_OFFSET_SHIFT   5
+#define GEN8_3DSTATE_SBE_SWIZ			GEN6_3D(3, 0, 0x51)
+#define GEN8_3DSTATE_RASTER			GEN6_3D(3, 0, 0x50)
+# define GEN8_RASTER_FRONT_WINDING_CCW			(1 << 21)
+# define GEN8_RASTER_CULL_NONE                          (1 << 16)
 #define GEN7_3DSTATE_PS				GEN6_3D(3, 0, 0x20)
 #define GEN7_3DSTATE_VIEWPORT_STATE_POINTERS_SF_CLIP	\
 						GEN6_3D(3, 0, 0x21)
+#define GEN8_3DSTATE_PS_BLEND			GEN6_3D(3, 0, 0x4d)
+# define GEN8_PS_BLEND_HAS_WRITEABLE_RT			(1 << 30)
+#define GEN8_3DSTATE_PS_EXTRA			GEN6_3D(3,0, 0x4f)
+# define GEN8_PSX_PIXEL_SHADER_VALID			(1 << 31)
+# define GEN8_PSX_ATTRIBUTE_ENABLE			(1 << 8)
+
 #define GEN7_3DSTATE_VIEWPORT_STATE_POINTERS_CC	GEN6_3D(3, 0, 0x23)
 #define GEN7_3DSTATE_BLEND_STATE_POINTERS	GEN6_3D(3, 0, 0x24)
 #define GEN7_3DSTATE_DS_STATE_POINTERS		GEN6_3D(3, 0, 0x25)
@@ -41,6 +65,8 @@
 #define GEN7_3DSTATE_SAMPLER_STATE_POINTERS_GS	GEN6_3D(3, 0, 0x2e)
 #define GEN7_3DSTATE_SAMPLER_STATE_POINTERS_PS	GEN6_3D(3, 0, 0x2f)
 
+#define GEN8_3DSTATE_VF_TOPOLOGY		GEN6_3D(3, 0, 0x4b)
+
 #define GEN7_3DSTATE_PUSH_CONSTANT_ALLOC_VS	GEN6_3D(3, 1, 0x12)
 #define GEN7_3DSTATE_PUSH_CONSTANT_ALLOC_HS	GEN6_3D(3, 1, 0x13)
 #define GEN7_3DSTATE_PUSH_CONSTANT_ALLOC_DS	GEN6_3D(3, 1, 0x14)
@@ -49,13 +75,11 @@
 
 /* Some random bits that we care about */
 #define GEN7_VB0_BUFFER_ADDR_MOD_EN		(1 << 14)
-#define GEN7_WM_DISPATCH_ENABLE			(1 << 29)
 #define GEN7_3DSTATE_PS_PERSPECTIVE_PIXEL_BARYCENTRIC (1 << 11)
 #define GEN7_3DSTATE_PS_ATTRIBUTE_ENABLED	 (1 << 10)
 
 /* Random shifts */
-#define GEN7_3DSTATE_WM_MAX_THREADS_SHIFT 24
-#define HSW_3DSTATE_WM_MAX_THREADS_SHIFT 23
+#define GEN8_3DSTATE_PS_MAX_THREADS_SHIFT 23
 
 /* Shamelessly ripped from mesa */
 struct gen8_surface_state