vc4: Add headers and .pc files for VC4 userspace development.

The headers were originally written in Mesa, imported to the kernel,
and improved upon in vc4-gpu-tools.  These come from the v-g-t copies
and will replace the Mesa and v-g-t copies, and hopefully be used from
new tests in igt, as well.

v2: Fix linking against libdrm_intel instead of libdrm.
v3: Drop Libs and Cflags since they'll be inherited from libdrm.
v4: Switch to Requires.private.  I was wrong about standard practice,
    apparently only Intel was doing plain Requires (sorry to all
    involved).

Signed-off-by: Eric Anholt <eric@anholt.net>

1 files changed, 274 insertions, 0 deletions

diff --git a/vc4/vc4_qpu_defines.h b/vc4/vc4_qpu_defines.h
new file mode 100644
index 000000000000..26fcf505fe43
--- /dev/null
+++ b/vc4/vc4_qpu_defines.h
@@ -0,0 +1,274 @@
+/*
+ * Copyright © 2014 Broadcom
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef VC4_QPU_DEFINES_H
+#define VC4_QPU_DEFINES_H
+
+enum qpu_op_add {
+        QPU_A_NOP,
+        QPU_A_FADD,
+        QPU_A_FSUB,
+        QPU_A_FMIN,
+        QPU_A_FMAX,
+        QPU_A_FMINABS,
+        QPU_A_FMAXABS,
+        QPU_A_FTOI,
+        QPU_A_ITOF,
+        QPU_A_ADD = 12,
+        QPU_A_SUB,
+        QPU_A_SHR,
+        QPU_A_ASR,
+        QPU_A_ROR,
+        QPU_A_SHL,
+        QPU_A_MIN,
+        QPU_A_MAX,
+        QPU_A_AND,
+        QPU_A_OR,
+        QPU_A_XOR,
+        QPU_A_NOT,
+        QPU_A_CLZ,
+        QPU_A_V8ADDS = 30,
+        QPU_A_V8SUBS = 31,
+};
+
+enum qpu_op_mul {
+        QPU_M_NOP,
+        QPU_M_FMUL,
+        QPU_M_MUL24,
+        QPU_M_V8MULD,
+        QPU_M_V8MIN,
+        QPU_M_V8MAX,
+        QPU_M_V8ADDS,
+        QPU_M_V8SUBS,
+};
+
+enum qpu_raddr {
+        QPU_R_FRAG_PAYLOAD_ZW = 15, /* W for A file, Z for B file */
+        /* 0-31 are the plain regfile a or b fields */
+        QPU_R_UNIF = 32,
+        QPU_R_VARY = 35,
+        QPU_R_ELEM_QPU = 38,
+        QPU_R_NOP,
+        QPU_R_XY_PIXEL_COORD = 41,
+        QPU_R_MS_REV_FLAGS = 42,
+        QPU_R_VPM = 48,
+        QPU_R_VPM_LD_BUSY,
+        QPU_R_VPM_LD_WAIT,
+        QPU_R_MUTEX_ACQUIRE,
+};
+
+enum qpu_waddr {
+        /* 0-31 are the plain regfile a or b fields */
+        QPU_W_ACC0 = 32, /* aka r0 */
+        QPU_W_ACC1,
+        QPU_W_ACC2,
+        QPU_W_ACC3,
+        QPU_W_TMU_NOSWAP,
+        QPU_W_ACC5,
+        QPU_W_HOST_INT,
+        QPU_W_NOP,
+        QPU_W_UNIFORMS_ADDRESS,
+        QPU_W_QUAD_XY, /* X for regfile a, Y for regfile b */
+        QPU_W_MS_FLAGS = 42,
+        QPU_W_REV_FLAG = 42,
+        QPU_W_TLB_STENCIL_SETUP = 43,
+        QPU_W_TLB_Z,
+        QPU_W_TLB_COLOR_MS,
+        QPU_W_TLB_COLOR_ALL,
+        QPU_W_TLB_ALPHA_MASK,
+        QPU_W_VPM,
+        QPU_W_VPMVCD_SETUP, /* LD for regfile a, ST for regfile b */
+        QPU_W_VPM_ADDR, /* LD for regfile a, ST for regfile b */
+        QPU_W_MUTEX_RELEASE,
+        QPU_W_SFU_RECIP,
+        QPU_W_SFU_RECIPSQRT,
+        QPU_W_SFU_EXP,
+        QPU_W_SFU_LOG,
+        QPU_W_TMU0_S,
+        QPU_W_TMU0_T,
+        QPU_W_TMU0_R,
+        QPU_W_TMU0_B,
+        QPU_W_TMU1_S,
+        QPU_W_TMU1_T,
+        QPU_W_TMU1_R,
+        QPU_W_TMU1_B,
+};
+
+enum qpu_sig_bits {
+        QPU_SIG_SW_BREAKPOINT,
+        QPU_SIG_NONE,
+        QPU_SIG_THREAD_SWITCH,
+        QPU_SIG_PROG_END,
+        QPU_SIG_WAIT_FOR_SCOREBOARD,
+        QPU_SIG_SCOREBOARD_UNLOCK,
+        QPU_SIG_LAST_THREAD_SWITCH,
+        QPU_SIG_COVERAGE_LOAD,
+        QPU_SIG_COLOR_LOAD,
+        QPU_SIG_COLOR_LOAD_END,
+        QPU_SIG_LOAD_TMU0,
+        QPU_SIG_LOAD_TMU1,
+        QPU_SIG_ALPHA_MASK_LOAD,
+        QPU_SIG_SMALL_IMM,
+        QPU_SIG_LOAD_IMM,
+        QPU_SIG_BRANCH
+};
+
+enum qpu_mux {
+        /* hardware mux values */
+        QPU_MUX_R0,
+        QPU_MUX_R1,
+        QPU_MUX_R2,
+        QPU_MUX_R3,
+        QPU_MUX_R4,
+        QPU_MUX_R5,
+        QPU_MUX_A,
+        QPU_MUX_B,
+
+        /**
+         * Non-hardware mux value, stores a small immediate field to be
+         * programmed into raddr_b in the qpu_reg.index.
+         */
+        QPU_MUX_SMALL_IMM,
+};
+
+enum qpu_cond {
+        QPU_COND_NEVER,
+        QPU_COND_ALWAYS,
+        QPU_COND_ZS,
+        QPU_COND_ZC,
+        QPU_COND_NS,
+        QPU_COND_NC,
+        QPU_COND_CS,
+        QPU_COND_CC,
+};
+
+enum qpu_pack_mul {
+        QPU_PACK_MUL_NOP,
+        QPU_PACK_MUL_8888 = 3, /* replicated to each 8 bits of the 32-bit dst. */
+        QPU_PACK_MUL_8A,
+        QPU_PACK_MUL_8B,
+        QPU_PACK_MUL_8C,
+        QPU_PACK_MUL_8D,
+};
+
+enum qpu_pack_a {
+        QPU_PACK_A_NOP,
+        /* convert to 16 bit float if float input, or to int16. */
+        QPU_PACK_A_16A,
+        QPU_PACK_A_16B,
+        /* replicated to each 8 bits of the 32-bit dst. */
+        QPU_PACK_A_8888,
+        /* Convert to 8-bit unsigned int. */
+        QPU_PACK_A_8A,
+        QPU_PACK_A_8B,
+        QPU_PACK_A_8C,
+        QPU_PACK_A_8D,
+
+        /* Saturating variants of the previous instructions. */
+        QPU_PACK_A_32_SAT, /* int-only */
+        QPU_PACK_A_16A_SAT, /* int or float */
+        QPU_PACK_A_16B_SAT,
+        QPU_PACK_A_8888_SAT,
+        QPU_PACK_A_8A_SAT,
+        QPU_PACK_A_8B_SAT,
+        QPU_PACK_A_8C_SAT,
+        QPU_PACK_A_8D_SAT,
+};
+
+enum qpu_unpack {
+        QPU_UNPACK_NOP,
+        QPU_UNPACK_16A,
+        QPU_UNPACK_16B,
+        QPU_UNPACK_8D_REP,
+        QPU_UNPACK_8A,
+        QPU_UNPACK_8B,
+        QPU_UNPACK_8C,
+        QPU_UNPACK_8D,
+};
+
+#define QPU_MASK(high, low) ((((uint64_t)1<<((high)-(low)+1))-1)<<(low))
+/* Using the GNU statement expression extension */
+#define QPU_SET_FIELD(value, field)                                       \
+        ({                                                                \
+                uint64_t fieldval = (uint64_t)(value) << field ## _SHIFT; \
+                assert((fieldval & ~ field ## _MASK) == 0);               \
+                fieldval & field ## _MASK;                                \
+         })
+
+#define QPU_GET_FIELD(word, field) ((uint32_t)(((word)  & field ## _MASK) >> field ## _SHIFT))
+
+#define QPU_UPDATE_FIELD(inst, value, field)                              \
+        (((inst) & ~(field ## _MASK)) | QPU_SET_FIELD(value, field))
+
+#define QPU_SIG_SHIFT                   60
+#define QPU_SIG_MASK                    QPU_MASK(63, 60)
+
+#define QPU_UNPACK_SHIFT                57
+#define QPU_UNPACK_MASK                 QPU_MASK(59, 57)
+
+/**
+ * If set, the pack field means PACK_MUL or R4 packing, instead of normal
+ * regfile a packing.
+ */
+#define QPU_PM                          ((uint64_t)1 << 56)
+
+#define QPU_PACK_SHIFT                  52
+#define QPU_PACK_MASK                   QPU_MASK(55, 52)
+
+#define QPU_COND_ADD_SHIFT              49
+#define QPU_COND_ADD_MASK               QPU_MASK(51, 49)
+#define QPU_COND_MUL_SHIFT              46
+#define QPU_COND_MUL_MASK               QPU_MASK(48, 46)
+
+#define QPU_SF                          ((uint64_t)1 << 45)
+
+#define QPU_WADDR_ADD_SHIFT             38
+#define QPU_WADDR_ADD_MASK              QPU_MASK(43, 38)
+#define QPU_WADDR_MUL_SHIFT             32
+#define QPU_WADDR_MUL_MASK              QPU_MASK(37, 32)
+
+#define QPU_OP_MUL_SHIFT                29
+#define QPU_OP_MUL_MASK                 QPU_MASK(31, 29)
+
+#define QPU_RADDR_A_SHIFT               18
+#define QPU_RADDR_A_MASK                QPU_MASK(23, 18)
+#define QPU_RADDR_B_SHIFT               12
+#define QPU_RADDR_B_MASK                QPU_MASK(17, 12)
+#define QPU_SMALL_IMM_SHIFT             12
+#define QPU_SMALL_IMM_MASK              QPU_MASK(17, 12)
+
+#define QPU_ADD_A_SHIFT                 9
+#define QPU_ADD_A_MASK                  QPU_MASK(11, 9)
+#define QPU_ADD_B_SHIFT                 6
+#define QPU_ADD_B_MASK                  QPU_MASK(8, 6)
+#define QPU_MUL_A_SHIFT                 3
+#define QPU_MUL_A_MASK                  QPU_MASK(5, 3)
+#define QPU_MUL_B_SHIFT                 0
+#define QPU_MUL_B_MASK                  QPU_MASK(2, 0)
+
+#define QPU_WS                          ((uint64_t)1 << 44)
+
+#define QPU_OP_ADD_SHIFT                24
+#define QPU_OP_ADD_MASK                 QPU_MASK(28, 24)
+
+#endif /* VC4_QPU_DEFINES_H */