r600g: add initial linestipple support.

It seems line loop stipple in hardware needs something I don't know, it might
need a proper geometry shader who knows.

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

diff --git a/src/gallium/drivers/r600/evergreen_hw_context.c b/src/gallium/drivers/r600/evergreen_hw_context.c
index 116fb4e..f7ed6ac 100644 (file)
--- a/src/gallium/drivers/r600/evergreen_hw_context.c
+++ b/src/gallium/drivers/r600/evergreen_hw_context.c
@@ -297,6 +297,7 @@ static const struct r600_reg evergreen_context_reg_list[] = {
        {R_028A00_PA_SU_POINT_SIZE, 0, 0, 0},
        {R_028A04_PA_SU_POINT_MINMAX, 0, 0, 0},
        {R_028A08_PA_SU_LINE_CNTL, 0, 0, 0},
+       {R_028A0C_PA_SC_LINE_STIPPLE, 0 ,0, 0},
        {R_028A10_VGT_OUTPUT_PATH_CNTL, 0, 0, 0},
        {R_028A14_VGT_HOS_CNTL, 0, 0, 0},
        {R_028A18_VGT_HOS_MAX_TESS_LEVEL, 0, 0, 0},
@@ -661,6 +662,7 @@ static const struct r600_reg cayman_context_reg_list[] = {
        {R_028A00_PA_SU_POINT_SIZE, 0, 0, 0},
        {R_028A04_PA_SU_POINT_MINMAX, 0, 0, 0},
        {R_028A08_PA_SU_LINE_CNTL, 0, 0, 0},
+       {R_028A0C_PA_SC_LINE_STIPPLE, 0 ,0, 0},
        {R_028A10_VGT_OUTPUT_PATH_CNTL, 0, 0, 0},
        {R_028A14_VGT_HOS_CNTL, 0, 0, 0},
        {R_028A18_VGT_HOS_MAX_TESS_LEVEL, 0, 0, 0},

diff --git a/src/gallium/drivers/r600/evergreen_state.c b/src/gallium/drivers/r600/evergreen_state.c
index c0b057c..fa5e5db 100644 (file)
--- a/src/gallium/drivers/r600/evergreen_state.c
+++ b/src/gallium/drivers/r600/evergreen_state.c
@@ -946,6 +946,17 @@ static void *evergreen_create_rs_state(struct pipe_context *ctx,
        tmp = (unsigned)state->line_width * 8;
        r600_pipe_state_add_reg(rstate, R_028A08_PA_SU_LINE_CNTL, S_028A08_WIDTH(tmp), 0xFFFFFFFF, NULL, 0);
 
+       if (state->line_stipple_enable) {
+               r600_pipe_state_add_reg(rstate, R_028A0C_PA_SC_LINE_STIPPLE,
+                                       S_028A0C_LINE_PATTERN(state->line_stipple_pattern) |
+                                       S_028A0C_REPEAT_COUNT(state->line_stipple_factor),
+                                       0x9FFFFFFF, NULL, 0);
+       }
+
+       r600_pipe_state_add_reg(rstate, R_028A48_PA_SC_MODE_CNTL_0,
+                               S_028A48_LINE_STIPPLE_ENABLE(state->line_stipple_enable),
+                               0xFFFFFFFF, NULL, 0);
+
        if (rctx->chip_class == CAYMAN) {
                r600_pipe_state_add_reg(rstate, CM_R_028BDC_PA_SC_LINE_CNTL, 0x00000400, 0xFFFFFFFF, NULL, 0);
                r600_pipe_state_add_reg(rstate, CM_R_028BE4_PA_SU_VTX_CNTL,
@@ -1692,7 +1703,6 @@ static void cayman_init_config(struct r600_pipe_context *rctx)
        r600_pipe_state_add_reg(rstate, R_008C14_SQ_GLOBAL_GPR_RESOURCE_MGMT_2, 0, 0xFFFFFFFF, NULL, 0);
        r600_pipe_state_add_reg(rstate, R_008D8C_SQ_DYN_GPR_CNTL_PS_FLUSH_REQ, (1 << 8), 0xFFFFFFFF, NULL, 0);
 
-       r600_pipe_state_add_reg(rstate, R_028A48_PA_SC_MODE_CNTL_0, 0x0, 0xFFFFFFFF, NULL, 0);
        r600_pipe_state_add_reg(rstate, R_028A4C_PA_SC_MODE_CNTL_1, 0x0, 0xFFFFFFFF, NULL, 0);
 
        r600_pipe_state_add_reg(rstate, R_028A10_VGT_OUTPUT_PATH_CNTL, 0x0, 0xFFFFFFFF, NULL, 0);
@@ -2115,7 +2125,6 @@ void evergreen_init_config(struct r600_pipe_context *rctx)
 
        r600_pipe_state_add_reg(rstate, R_008D8C_SQ_DYN_GPR_CNTL_PS_FLUSH_REQ, 0x0, 0xFFFFFFFF, NULL, 0);
 #endif
-       r600_pipe_state_add_reg(rstate, R_028A48_PA_SC_MODE_CNTL_0, 0x0, 0xFFFFFFFF, NULL, 0);
        r600_pipe_state_add_reg(rstate, R_028A4C_PA_SC_MODE_CNTL_1, 0x0, 0xFFFFFFFF, NULL, 0);
 
        r600_pipe_state_add_reg(rstate, R_028900_SQ_ESGS_RING_ITEMSIZE, 0x0, 0xFFFFFFFF, NULL, 0);

diff --git a/src/gallium/drivers/r600/evergreend.h b/src/gallium/drivers/r600/evergreend.h
index cd99e49..6baa2a7 100644 (file)
--- a/src/gallium/drivers/r600/evergreend.h
+++ b/src/gallium/drivers/r600/evergreend.h
@@ -729,6 +729,11 @@
 #define   S_028A00_WIDTH(x)                            (((x) & 0xFFFF) << 16)
 #define   G_028A00_WIDTH(x)                            (((x) >> 16) & 0xFFFF)
 #define   C_028A00_WIDTH                               0x0000FFFF
+#define R_028A0C_PA_SC_LINE_STIPPLE                  0x028A0C
+#define   S_028A0C_LINE_PATTERN(x)                     (((x) & 0xFFFF) << 0)
+#define   S_028A0C_REPEAT_COUNT(x)                     (((x) & 0xFF) << 16)
+#define   S_028A0C_PATTERN_BIT_ORDER(x)                (((x) & 0x1) << 28)
+#define   S_028A0C_AUTO_RESET_CNTL(x)                  (((x) & 0x3) << 29)
 #define R_028A40_VGT_GS_MODE                         0x028A40
 #define   S_028A40_MODE(x)                             (((x) & 0x3) << 0)
 #define   G_028A40_MODE(x)                             (((x) >> 0) & 0x3)
@@ -1706,6 +1711,7 @@
 #define R_028A38_VGT_GROUP_VECT_0_FMT_CNTL           0x00028A38
 #define R_028A3C_VGT_GROUP_VECT_1_FMT_CNTL           0x00028A3C
 #define R_028A48_PA_SC_MODE_CNTL_0                   0x00028A48
+#define   S_028A48_LINE_STIPPLE_ENABLE(x)              (((x) & 0x1) << 2)
 #define R_028A4C_PA_SC_MODE_CNTL_1                   0x00028A4C
 #define R_028A94_VGT_MULTI_PRIM_IB_RESET_EN          0x00028A94
 #define   S_028A94_RESET_EN(x)                         (((x) & 0x1) << 0)

diff --git a/src/gallium/drivers/r600/r600_state.c b/src/gallium/drivers/r600/r600_state.c
index 9b5fb35..e38d1c9 100644 (file)
--- a/src/gallium/drivers/r600/r600_state.c
+++ b/src/gallium/drivers/r600/r600_state.c
@@ -939,6 +939,7 @@ static void *r600_create_rs_state(struct pipe_context *ctx,
        unsigned tmp;
        unsigned prov_vtx = 1, polygon_dual_mode;
        unsigned clip_rule;
+       unsigned sc_mode_cntl;
 
        if (rs == NULL) {
                return NULL;
@@ -996,7 +997,21 @@ static void *r600_create_rs_state(struct pipe_context *ctx,
        tmp = (unsigned)state->line_width * 8;
        r600_pipe_state_add_reg(rstate, R_028A08_PA_SU_LINE_CNTL, S_028A08_WIDTH(tmp), 0xFFFFFFFF, NULL, 0);
 
-       r600_pipe_state_add_reg(rstate, R_028A0C_PA_SC_LINE_STIPPLE, 0x00000005, 0xFFFFFFFF, NULL, 0);
+       if (state->line_stipple_enable) {
+               r600_pipe_state_add_reg(rstate, R_028A0C_PA_SC_LINE_STIPPLE,
+                                       S_028A0C_LINE_PATTERN(state->line_stipple_pattern) |
+                                       S_028A0C_REPEAT_COUNT(state->line_stipple_factor),
+                                       0x9FFFFFFF, NULL, 0);
+       }
+
+       if (rctx->chip_class >= R700)
+               sc_mode_cntl = 0x514002;
+       else
+               sc_mode_cntl = 0x4102;
+       sc_mode_cntl |= S_028A4C_LINE_STIPPLE_ENABLE(state->line_stipple_enable);
+       
+       r600_pipe_state_add_reg(rstate, R_028A4C_PA_SC_MODE_CNTL, sc_mode_cntl,
+                               0xFFFFFFFF, NULL, 0);
        r600_pipe_state_add_reg(rstate, R_028A48_PA_SC_MPASS_PS_CNTL, 0x00000000, 0xFFFFFFFF, NULL, 0);
        r600_pipe_state_add_reg(rstate, R_028C00_PA_SC_LINE_CNTL, 0x00000400, 0xFFFFFFFF, NULL, 0);
 
@@ -1994,7 +2009,6 @@ void r600_init_config(struct r600_pipe_context *rctx)
                r600_pipe_state_add_reg(rstate, R_009830_DB_DEBUG, 0x00000000, 0xFFFFFFFF, NULL, 0);
                r600_pipe_state_add_reg(rstate, R_009838_DB_WATERMARKS, 0x00420204, 0xFFFFFFFF, NULL, 0);
                r600_pipe_state_add_reg(rstate, R_0286C8_SPI_THREAD_GROUPING, 0x00000000, 0xFFFFFFFF, NULL, 0);
-               r600_pipe_state_add_reg(rstate, R_028A4C_PA_SC_MODE_CNTL, 0x00514002, 0xFFFFFFFF, NULL, 0);
        } else {
                r600_pipe_state_add_reg(rstate, R_008D8C_SQ_DYN_GPR_CNTL_PS_FLUSH_REQ, 0x00000000, 0xFFFFFFFF, NULL, 0);
                r600_pipe_state_add_reg(rstate, R_009508_TA_CNTL_AUX,
@@ -2005,7 +2019,6 @@ void r600_init_config(struct r600_pipe_context *rctx)
                r600_pipe_state_add_reg(rstate, R_009830_DB_DEBUG, 0x82000000, 0xFFFFFFFF, NULL, 0);
                r600_pipe_state_add_reg(rstate, R_009838_DB_WATERMARKS, 0x01020204, 0xFFFFFFFF, NULL, 0);
                r600_pipe_state_add_reg(rstate, R_0286C8_SPI_THREAD_GROUPING, 0x00000001, 0xFFFFFFFF, NULL, 0);
-               r600_pipe_state_add_reg(rstate, R_028A4C_PA_SC_MODE_CNTL, 0x00004012, 0xFFFFFFFF, NULL, 0);
        }
        r600_pipe_state_add_reg(rstate, R_0288A8_SQ_ESGS_RING_ITEMSIZE, 0x00000000, 0xFFFFFFFF, NULL, 0);
        r600_pipe_state_add_reg(rstate, R_0288AC_SQ_GSVS_RING_ITEMSIZE, 0x00000000, 0xFFFFFFFF, NULL, 0);

diff --git a/src/gallium/drivers/r600/r600_state_common.c b/src/gallium/drivers/r600/r600_state_common.c
index b81fba1..14a2ab0 100644 (file)
--- a/src/gallium/drivers/r600/r600_state_common.c
+++ b/src/gallium/drivers/r600/r600_state_common.c
@@ -534,7 +534,7 @@ void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *dinfo)
        struct pipe_draw_info info = *dinfo;
        struct r600_draw rdraw = {};
        struct pipe_index_buffer ib = {};
-       unsigned prim, mask;
+       unsigned prim, mask, ls_mask = 0;
 
        if (!info.count ||
            (info.indexed && !rctx->index_buffer.buffer) ||
@@ -599,6 +599,9 @@ void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *dinfo)
                r600_pipe_state_add_reg(&rctx->vgt, R_028A94_VGT_MULTI_PRIM_IB_RESET_EN, info.primitive_restart, 0xFFFFFFFF, NULL, 0);
                r600_pipe_state_add_reg(&rctx->vgt, R_03CFF0_SQ_VTX_BASE_VTX_LOC, 0, 0xFFFFFFFF, NULL, 0);
                r600_pipe_state_add_reg(&rctx->vgt, R_03CFF4_SQ_VTX_START_INST_LOC, info.start_instance, 0xFFFFFFFF, NULL, 0);
+               r600_pipe_state_add_reg(&rctx->vgt, R_028A0C_PA_SC_LINE_STIPPLE,
+                                       0,
+                                       S_028A0C_AUTO_RESET_CNTL(3), NULL, 0);
                r600_pipe_state_add_reg(&rctx->vgt, R_028814_PA_SU_SC_MODE_CNTL,
                                        0,
                                        S_028814_PROVOKING_VTX_LAST(1), NULL, 0);
@@ -614,6 +617,13 @@ void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *dinfo)
        r600_pipe_state_mod_reg(&rctx->vgt, info.primitive_restart);
        r600_pipe_state_mod_reg(&rctx->vgt, 0);
        r600_pipe_state_mod_reg(&rctx->vgt, info.start_instance);
+
+       if (prim == V_008958_DI_PT_LINELIST)
+               ls_mask = 1;
+       else if (prim == V_008958_DI_PT_LINESTRIP) 
+               ls_mask = 2;
+       r600_pipe_state_mod_reg(&rctx->vgt, S_028A0C_AUTO_RESET_CNTL(ls_mask));
+
        if (info.mode == PIPE_PRIM_QUADS || info.mode == PIPE_PRIM_QUAD_STRIP || info.mode == PIPE_PRIM_POLYGON) {
                r600_pipe_state_mod_reg(&rctx->vgt, S_028814_PROVOKING_VTX_LAST(1));
        }

diff --git a/src/gallium/drivers/r600/r600d.h b/src/gallium/drivers/r600/r600d.h
index 441c981..079cd72 100644 (file)
--- a/src/gallium/drivers/r600/r600d.h
+++ b/src/gallium/drivers/r600/r600d.h
@@ -779,6 +779,11 @@
 #define   S_028A00_WIDTH(x)                            (((x) & 0xFFFF) << 16)
 #define   G_028A00_WIDTH(x)                            (((x) >> 16) & 0xFFFF)
 #define   C_028A00_WIDTH                               0x0000FFFF
+#define R_028A0C_PA_SC_LINE_STIPPLE                  0x028A0C
+#define   S_028A0C_LINE_PATTERN(x)                     (((x) & 0xFFFF) << 0)
+#define   S_028A0C_REPEAT_COUNT(x)                     (((x) & 0xFF) << 16)
+#define   S_028A0C_PATTERN_BIT_ORDER(x)                (((x) & 0x1) << 28)
+#define   S_028A0C_AUTO_RESET_CNTL(x)                  (((x) & 0x3) << 29)
 #define R_028A40_VGT_GS_MODE                         0x028A40
 #define   S_028A40_MODE(x)                             (((x) & 0x3) << 0)
 #define   G_028A40_MODE(x)                             (((x) >> 0) & 0x3)