Use the CP to write data to memory.
Reviewed-by: Ken Wang Qingqing.Wang@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com --- tests/amdgpu/basic_tests.c | 125 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 125 insertions(+)
diff --git a/tests/amdgpu/basic_tests.c b/tests/amdgpu/basic_tests.c index 5804503..5c9debe 100644 --- a/tests/amdgpu/basic_tests.c +++ b/tests/amdgpu/basic_tests.c @@ -90,6 +90,117 @@ CU_TestInfo basic_tests[] = { #define GFX_COMPUTE_NOP 0xffff1000 #define SDMA_NOP 0x0
+/* PM4 */ +#define PACKET_TYPE0 0 +#define PACKET_TYPE1 1 +#define PACKET_TYPE2 2 +#define PACKET_TYPE3 3 + +#define CP_PACKET_GET_TYPE(h) (((h) >> 30) & 3) +#define CP_PACKET_GET_COUNT(h) (((h) >> 16) & 0x3FFF) +#define CP_PACKET0_GET_REG(h) ((h) & 0xFFFF) +#define CP_PACKET3_GET_OPCODE(h) (((h) >> 8) & 0xFF) +#define PACKET0(reg, n) ((PACKET_TYPE0 << 30) | \ + ((reg) & 0xFFFF) | \ + ((n) & 0x3FFF) << 16) +#define CP_PACKET2 0x80000000 +#define PACKET2_PAD_SHIFT 0 +#define PACKET2_PAD_MASK (0x3fffffff << 0) + +#define PACKET2(v) (CP_PACKET2 | REG_SET(PACKET2_PAD, (v))) + +#define PACKET3(op, n) ((PACKET_TYPE3 << 30) | \ + (((op) & 0xFF) << 8) | \ + ((n) & 0x3FFF) << 16) + +/* Packet 3 types */ +#define PACKET3_NOP 0x10 + +#define PACKET3_WRITE_DATA 0x37 +#define WRITE_DATA_DST_SEL(x) ((x) << 8) + /* 0 - register + * 1 - memory (sync - via GRBM) + * 2 - gl2 + * 3 - gds + * 4 - reserved + * 5 - memory (async - direct) + */ +#define WR_ONE_ADDR (1 << 16) +#define WR_CONFIRM (1 << 20) +#define WRITE_DATA_CACHE_POLICY(x) ((x) << 25) + /* 0 - LRU + * 1 - Stream + */ +#define WRITE_DATA_ENGINE_SEL(x) ((x) << 30) + /* 0 - me + * 1 - pfp + * 2 - ce + */ + +#define PACKET3_DMA_DATA 0x50 +/* 1. header + * 2. CONTROL + * 3. SRC_ADDR_LO or DATA [31:0] + * 4. SRC_ADDR_HI [31:0] + * 5. DST_ADDR_LO [31:0] + * 6. DST_ADDR_HI [7:0] + * 7. COMMAND [30:21] | BYTE_COUNT [20:0] + */ +/* CONTROL */ +# define PACKET3_DMA_DATA_ENGINE(x) ((x) << 0) + /* 0 - ME + * 1 - PFP + */ +# define PACKET3_DMA_DATA_SRC_CACHE_POLICY(x) ((x) << 13) + /* 0 - LRU + * 1 - Stream + * 2 - Bypass + */ +# define PACKET3_DMA_DATA_SRC_VOLATILE (1 << 15) +# define PACKET3_DMA_DATA_DST_SEL(x) ((x) << 20) + /* 0 - DST_ADDR using DAS + * 1 - GDS + * 3 - DST_ADDR using L2 + */ +# define PACKET3_DMA_DATA_DST_CACHE_POLICY(x) ((x) << 25) + /* 0 - LRU + * 1 - Stream + * 2 - Bypass + */ +# define PACKET3_DMA_DATA_DST_VOLATILE (1 << 27) +# define PACKET3_DMA_DATA_SRC_SEL(x) ((x) << 29) + /* 0 - SRC_ADDR using SAS + * 1 - GDS + * 2 - DATA + * 3 - SRC_ADDR using L2 + */ +# define PACKET3_DMA_DATA_CP_SYNC (1 << 31) +/* COMMAND */ +# define PACKET3_DMA_DATA_DIS_WC (1 << 21) +# define PACKET3_DMA_DATA_CMD_SRC_SWAP(x) ((x) << 22) + /* 0 - none + * 1 - 8 in 16 + * 2 - 8 in 32 + * 3 - 8 in 64 + */ +# define PACKET3_DMA_DATA_CMD_DST_SWAP(x) ((x) << 24) + /* 0 - none + * 1 - 8 in 16 + * 2 - 8 in 32 + * 3 - 8 in 64 + */ +# define PACKET3_DMA_DATA_CMD_SAS (1 << 26) + /* 0 - memory + * 1 - register + */ +# define PACKET3_DMA_DATA_CMD_DAS (1 << 27) + /* 0 - memory + * 1 - register + */ +# define PACKET3_DMA_DATA_CMD_SAIC (1 << 28) +# define PACKET3_DMA_DATA_CMD_DAIC (1 << 29) +# define PACKET3_DMA_DATA_CMD_RAW_WAIT (1 << 30) + int suite_basic_tests_init(void) { int r; @@ -338,8 +449,15 @@ static void amdgpu_command_submission_gfx_shared_ib(void) CU_ASSERT_EQUAL(r, 0); }
+static void amdgpu_command_submission_cp_write_data(void) +{ + amdgpu_command_submission_write_linear_helper(AMDGPU_HW_IP_GFX); +} + static void amdgpu_command_submission_gfx(void) { + /* write data using the CP */ + amdgpu_command_submission_cp_write_data(); /* separate IB buffers for multi-IB submission */ amdgpu_command_submission_gfx_separate_ibs(); /* shared IB buffer for multi-IB submission */ @@ -685,6 +803,13 @@ static void amdgpu_command_submission_write_linear_helper(unsigned ip_type) pm4[i++] = sdma_write_length; while(j++ < sdma_write_length) pm4[i++] = 0xdeadbeaf; + } else if (ip_type == AMDGPU_HW_IP_GFX) { + pm4[i++] = PACKET3(PACKET3_WRITE_DATA, 2 + sdma_write_length); + pm4[i++] = WRITE_DATA_DST_SEL(5) | WR_CONFIRM; + pm4[i++] = 0xfffffffc & bo_mc; + pm4[i++] = (0xffffffff00000000 & bo_mc) >> 32; + while(j++ < sdma_write_length) + pm4[i++] = 0xdeadbeaf; }
amdgpu_test_exec_cs_helper(context_handle,