drm/radeon: add basic zmask/hiz support (v4)

This interface allows userspace to request hyperz support, it probably
needs more locking, and really reporting that you can have hyperz is racy
since someone else might get it before you do.

v2: modify so we pass 0 valued packets to let DDX/r300c keep working.
also fixed incorrect 0x4f1c reference.

v3: fixup zb_bw_cntl so older drivers keep working

v4: add locking, fixup SC_HYPERZ_EN - patch stream to disable hiz

Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/radeon/reg_srcs/r300

@@ -187,7 +187,6 @@ r300 0x4f60
 0x4364 RS_INST_13
 0x4368 RS_INST_14
 0x436C RS_INST_15
-0x43A4 SC_HYPERZ_EN
 0x43A8 SC_EDGERULE
 0x43B0 SC_CLIP_0_A
 0x43B4 SC_CLIP_0_B
@@ -716,16 +715,4 @@ r300 0x4f60
 0x4F08 ZB_STENCILREFMASK
 0x4F14 ZB_ZTOP
 0x4F18 ZB_ZCACHE_CTLSTAT
-0x4F1C ZB_BW_CNTL
-0x4F28 ZB_DEPTHCLEARVALUE
-0x4F30 ZB_ZMASK_OFFSET
-0x4F34 ZB_ZMASK_PITCH
-0x4F38 ZB_ZMASK_WRINDEX
-0x4F3C ZB_ZMASK_DWORD
-0x4F40 ZB_ZMASK_RDINDEX
-0x4F44 ZB_HIZ_OFFSET
-0x4F48 ZB_HIZ_WRINDEX
-0x4F4C ZB_HIZ_DWORD
-0x4F50 ZB_HIZ_RDINDEX
-0x4F54 ZB_HIZ_PITCH
 0x4F58 ZB_ZPASS_DATA

drivers/gpu/drm/radeon/reg_srcs/r420

@@ -130,6 +130,7 @@ r420 0x4f60
 0x401C GB_SELECT
 0x4020 GB_AA_CONFIG
 0x4024 GB_FIFO_SIZE
+0x4028 GB_Z_PEQ_CONFIG
 0x4100 TX_INVALTAGS
 0x4200 GA_POINT_S0
 0x4204 GA_POINT_T0
@@ -187,7 +188,6 @@ r420 0x4f60
 0x4364 RS_INST_13
 0x4368 RS_INST_14
 0x436C RS_INST_15
-0x43A4 SC_HYPERZ_EN
 0x43A8 SC_EDGERULE
 0x43B0 SC_CLIP_0_A
 0x43B4 SC_CLIP_0_B
@@ -782,16 +782,4 @@ r420 0x4f60
 0x4F08 ZB_STENCILREFMASK
 0x4F14 ZB_ZTOP
 0x4F18 ZB_ZCACHE_CTLSTAT
-0x4F1C ZB_BW_CNTL
-0x4F28 ZB_DEPTHCLEARVALUE
-0x4F30 ZB_ZMASK_OFFSET
-0x4F34 ZB_ZMASK_PITCH
-0x4F38 ZB_ZMASK_WRINDEX
-0x4F3C ZB_ZMASK_DWORD
-0x4F40 ZB_ZMASK_RDINDEX
-0x4F44 ZB_HIZ_OFFSET
-0x4F48 ZB_HIZ_WRINDEX
-0x4F4C ZB_HIZ_DWORD
-0x4F50 ZB_HIZ_RDINDEX
-0x4F54 ZB_HIZ_PITCH
 0x4F58 ZB_ZPASS_DATA

drivers/gpu/drm/radeon/reg_srcs/rs600

@@ -187,7 +187,6 @@ rs600 0x6d40
 0x4364 RS_INST_13
 0x4368 RS_INST_14
 0x436C RS_INST_15
-0x43A4 SC_HYPERZ_EN
 0x43A8 SC_EDGERULE
 0x43B0 SC_CLIP_0_A
 0x43B4 SC_CLIP_0_B
@@ -782,16 +781,4 @@ rs600 0x6d40
 0x4F08 ZB_STENCILREFMASK
 0x4F14 ZB_ZTOP
 0x4F18 ZB_ZCACHE_CTLSTAT
-0x4F1C ZB_BW_CNTL
-0x4F28 ZB_DEPTHCLEARVALUE
-0x4F30 ZB_ZMASK_OFFSET
-0x4F34 ZB_ZMASK_PITCH
-0x4F38 ZB_ZMASK_WRINDEX
-0x4F3C ZB_ZMASK_DWORD
-0x4F40 ZB_ZMASK_RDINDEX
-0x4F44 ZB_HIZ_OFFSET
-0x4F48 ZB_HIZ_WRINDEX
-0x4F4C ZB_HIZ_DWORD
-0x4F50 ZB_HIZ_RDINDEX
-0x4F54 ZB_HIZ_PITCH
 0x4F58 ZB_ZPASS_DATA

drivers/gpu/drm/radeon/reg_srcs/rv515

@@ -235,7 +235,6 @@ rv515 0x6d40
 0x4354 RS_INST_13
 0x4358 RS_INST_14
 0x435C RS_INST_15
-0x43A4 SC_HYPERZ_EN
 0x43A8 SC_EDGERULE
 0x43B0 SC_CLIP_0_A
 0x43B4 SC_CLIP_0_B
@@ -479,17 +478,5 @@ rv515 0x6d40
 0x4F08 ZB_STENCILREFMASK
 0x4F14 ZB_ZTOP
 0x4F18 ZB_ZCACHE_CTLSTAT
-0x4F1C ZB_BW_CNTL
-0x4F28 ZB_DEPTHCLEARVALUE
-0x4F30 ZB_ZMASK_OFFSET
-0x4F34 ZB_ZMASK_PITCH
-0x4F38 ZB_ZMASK_WRINDEX
-0x4F3C ZB_ZMASK_DWORD
-0x4F40 ZB_ZMASK_RDINDEX
-0x4F44 ZB_HIZ_OFFSET
-0x4F48 ZB_HIZ_WRINDEX
-0x4F4C ZB_HIZ_DWORD
-0x4F50 ZB_HIZ_RDINDEX
-0x4F54 ZB_HIZ_PITCH
 0x4F58 ZB_ZPASS_DATA
 0x4FD4 ZB_STENCILREFMASK_BF