[PATCH 11/15] drm/radeon/kms: add cayman CS check support

[Alex Deucher]

Added to existing evergreen CS checker.

Signed-off-by: Alex Deucher <alexdeucher at gmail.com>
---
 drivers/gpu/drm/radeon/Makefile       |    2 +-
 drivers/gpu/drm/radeon/evergreen_cs.c |   55 +++++++++++++++++++++++++++++++--
 drivers/gpu/drm/radeon/evergreend.h   |    9 +++++
 3 files changed, 62 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile
index acdde40..3896ef8 100644
--- a/drivers/gpu/drm/radeon/Makefile
+++ b/drivers/gpu/drm/radeon/Makefile
@@ -53,7 +53,7 @@ $(obj)/rs600.o: $(obj)/rs600_reg_safe.h
 
 $(obj)/r600_cs.o: $(obj)/r600_reg_safe.h
 
-$(obj)/evergreen_cs.o: $(obj)/evergreen_reg_safe.h
+$(obj)/evergreen_cs.o: $(obj)/evergreen_reg_safe.h $(obj)/cayman_reg_safe.h
 
 radeon-y := radeon_drv.o radeon_cp.o radeon_state.o radeon_mem.o \
 	radeon_irq.o r300_cmdbuf.o r600_cp.o
diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c
index 345a75a..f7bd3ab 100644
--- a/drivers/gpu/drm/radeon/evergreen_cs.c
+++ b/drivers/gpu/drm/radeon/evergreen_cs.c
@@ -29,6 +29,7 @@
 #include "radeon.h"
 #include "evergreend.h"
 #include "evergreen_reg_safe.h"
+#include "cayman_reg_safe.h"
 
 static int evergreen_cs_packet_next_reloc(struct radeon_cs_parser *p,
 					  struct radeon_cs_reloc **cs_reloc);
@@ -425,18 +426,28 @@ static inline int evergreen_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u3
 {
 	struct evergreen_cs_track *track = (struct evergreen_cs_track *)p->track;
 	struct radeon_cs_reloc *reloc;
-	u32 last_reg = ARRAY_SIZE(evergreen_reg_safe_bm);
+	u32 last_reg;
 	u32 m, i, tmp, *ib;
 	int r;
 
+	if (p->rdev->family >= CHIP_CAYMAN)
+		last_reg = ARRAY_SIZE(cayman_reg_safe_bm);
+	else
+		last_reg = ARRAY_SIZE(evergreen_reg_safe_bm);
+
 	i = (reg >> 7);
 	if (i > last_reg) {
 		dev_warn(p->dev, "forbidden register 0x%08x at %d\n", reg, idx);
 		return -EINVAL;
 	}
 	m = 1 << ((reg >> 2) & 31);
-	if (!(evergreen_reg_safe_bm[i] & m))
-		return 0;
+	if (p->rdev->family >= CHIP_CAYMAN) {
+		if (!(cayman_reg_safe_bm[i] & m))
+			return 0;
+	} else {
+		if (!(evergreen_reg_safe_bm[i] & m))
+			return 0;
+	}
 	ib = p->ib->ptr;
 	switch (reg) {
 	/* force following reg to 0 in an attemp to disable out buffer
@@ -474,6 +485,20 @@ static inline int evergreen_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u3
 	case DB_DEPTH_CONTROL:
 		track->db_depth_control = radeon_get_ib_value(p, idx);
 		break;
+	case CAYMAN_DB_EQAA:
+		if (p->rdev->family < CHIP_CAYMAN) {
+			dev_warn(p->dev, "bad SET_CONTEXT_REG "
+				 "0x%04X\n", reg);
+			return -EINVAL;
+		}
+		break;
+	case CAYMAN_DB_DEPTH_INFO:
+		if (p->rdev->family < CHIP_CAYMAN) {
+			dev_warn(p->dev, "bad SET_CONTEXT_REG "
+				 "0x%04X\n", reg);
+			return -EINVAL;
+		}
+		break;
 	case DB_Z_INFO:
 		r = evergreen_cs_packet_next_reloc(p, &reloc);
 		if (r) {
@@ -559,9 +584,23 @@ static inline int evergreen_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u3
 		track->cb_shader_mask = radeon_get_ib_value(p, idx);
 		break;
 	case PA_SC_AA_CONFIG:
+		if (p->rdev->family >= CHIP_CAYMAN) {
+			dev_warn(p->dev, "bad SET_CONTEXT_REG "
+				 "0x%04X\n", reg);
+			return -EINVAL;
+		}
 		tmp = radeon_get_ib_value(p, idx) & MSAA_NUM_SAMPLES_MASK;
 		track->nsamples = 1 << tmp;
 		break;
+	case CAYMAN_PA_SC_AA_CONFIG:
+		if (p->rdev->family < CHIP_CAYMAN) {
+			dev_warn(p->dev, "bad SET_CONTEXT_REG "
+				 "0x%04X\n", reg);
+			return -EINVAL;
+		}
+		tmp = radeon_get_ib_value(p, idx) & CAYMAN_MSAA_NUM_SAMPLES_MASK;
+		track->nsamples = 1 << tmp;
+		break;
 	case CB_COLOR0_VIEW:
 	case CB_COLOR1_VIEW:
 	case CB_COLOR2_VIEW:
@@ -956,6 +995,16 @@ static int evergreen_packet3_check(struct radeon_cs_parser *p,
 			return -EINVAL;
 		}
 		break;
+	case CAYMAN_PACKET3_DEALLOC_STATE:
+		if (p->rdev->family < CHIP_CAYMAN) {
+			DRM_ERROR("bad PACKET3_DEALLOC_STATE\n");
+			return -EINVAL;
+		}
+		if (pkt->count) {
+			DRM_ERROR("bad INDEX_TYPE/NUM_INSTANCES/CLEAR_STATE\n");
+			return -EINVAL;
+		}
+		break;
 	case PACKET3_INDEX_BASE:
 		if (pkt->count != 1) {
 			DRM_ERROR("bad INDEX_BASE\n");
diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h
index eb4acf4..cd53b67 100644
--- a/drivers/gpu/drm/radeon/evergreend.h
+++ b/drivers/gpu/drm/radeon/evergreend.h
@@ -1093,5 +1093,14 @@
 #define SQ_TEX_RESOURCE_WORD6_0                         0x30018
 #define SQ_TEX_RESOURCE_WORD7_0                         0x3001c
 
+/* cayman 3D regs */
+#define CAYMAN_VGT_OFFCHIP_LDS_BASE			0x89B0
+#define CAYMAN_DB_EQAA					0x28804
+#define CAYMAN_DB_DEPTH_INFO				0x2803C
+#define CAYMAN_PA_SC_AA_CONFIG				0x28BE0
+#define         CAYMAN_MSAA_NUM_SAMPLES_SHIFT           0
+#define         CAYMAN_MSAA_NUM_SAMPLES_MASK            0x7
+/* cayman packet3 addition */
+#define	CAYMAN_PACKET3_DEALLOC_STATE			0x14
 
 #endif
-- 
1.7.1.1