Thread (199 messages) 199 messages, 9 authors, 2020-10-28

Re: [dpdk-dev] [PATCH v6 1/8] eal/x86: introduce AVX 512-bit type

From: Medvedkin, Vladimir <hidden>
Date: 2020-07-13 11:44:34


On 13/07/2020 12:33, David Marchand wrote:
On Mon, Jul 13, 2020 at 1:11 PM Vladimir Medvedkin
[off-list ref] wrote:
quoted
New data type to manipulate 512 bit AVX values.

Signed-off-by: Vladimir Medvedkin <redacted>
Acked-by: Konstantin Ananyev <redacted>
---
  lib/librte_eal/x86/include/rte_vect.h | 19 +++++++++++++++++++
  1 file changed, 19 insertions(+)
diff --git a/lib/librte_eal/x86/include/rte_vect.h b/lib/librte_eal/x86/include/rte_vect.h
index df5a60762..30dcfd5e7 100644
--- a/lib/librte_eal/x86/include/rte_vect.h
+++ b/lib/librte_eal/x86/include/rte_vect.h
@@ -13,6 +13,7 @@

  #include <stdint.h>
  #include <rte_config.h>
+#include <rte_common.h>
  #include "generic/rte_vect.h"

  #if (defined(__ICC) || \
@@ -90,6 +91,24 @@ __extension__ ({                 \
  })
  #endif /* (defined(__ICC) && __ICC < 1210) */

+#ifdef __AVX512F__
+
+#define RTE_X86_ZMM_SIZE       (sizeof(__m512i))
+#define RTE_X86_ZMM_MASK       (ZMM_SIZE - 1)
Please fix:
#define RTE_X86_ZMM_MASK       (RTE_X86_ZMM_SIZE - 1)
Oh, thanks!
quoted
+
+typedef union __rte_x86_zmm {
+       __m512i  z;
+       ymm_t    y[RTE_X86_ZMM_SIZE / sizeof(ymm_t)];
+       xmm_t    x[RTE_X86_ZMM_SIZE / sizeof(xmm_t)];
+       uint8_t  u8[RTE_X86_ZMM_SIZE / sizeof(uint8_t)];
+       uint16_t u16[RTE_X86_ZMM_SIZE / sizeof(uint16_t)];
+       uint32_t u32[RTE_X86_ZMM_SIZE / sizeof(uint32_t)];
+       uint64_t u64[RTE_X86_ZMM_SIZE / sizeof(uint64_t)];
+       double   pd[RTE_X86_ZMM_SIZE / sizeof(double)];
+} __rte_aligned(RTE_X86_ZMM_SIZE) __rte_x86_zmm_t;
+
+#endif /* __AVX512F__ */
+
  #ifdef __cplusplus
  }
  #endif
--
2.17.1
-- 
Regards,
Vladimir
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