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LSU Clkdomain Ready for verification.

This commit is contained in:
Jahanzaib-Rasheed 2020-09-23 09:43:30 +05:00
parent 080417afc1
commit 0a95ef12ce
1 changed files with 57 additions and 104 deletions
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119
src/main/scala/lsu/el2_lsu_clkdomain.scala
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@ -20,18 +20,18 @@ class el2_lsu_clkdomain extends Module {
val ldst_stbuf_reqvld_r = Input(Bool()) // allocating in to the store queue
val stbuf_reqvld_any = Input(Bool()) // stbuf is draining
val stbuf_reqvld_flushed_any = Input(Bool())// instruction going to stbuf is flushed
val stbuf_reqvld_flushed_any = Input(Bool()) // instruction going to stbuf is flushed
val lsu_busreq_r = Input(Bool()) // busreq in r
val lsu_bus_buffer_pend_any = Input(Bool())// bus buffer has a pending bus entry
val lsu_bus_buffer_empty_any = Input(Bool())// external bus buffer is empty
val lsu_bus_buffer_pend_any = Input(Bool()) // bus buffer has a pending bus entry
val lsu_bus_buffer_empty_any = Input(Bool()) // external bus buffer is empty
val lsu_stbuf_empty_any = Input(Bool()) // stbuf is empty
val lsu_bus_clk_en = Input(Bool()) // bus clock enable
val lsu_p = new el2_lsu_pkt_t // lsu packet in decode
val lsu_pkt_d = new el2_lsu_pkt_t // lsu packet in d
val lsu_pkt_m = new el2_lsu_pkt_t // lsu packet in m
val lsu_pkt_r = new el2_lsu_pkt_t // lsu packet in r
val lsu_p = Input(new el2_lsu_pkt_t) // lsu packet in decode
val lsu_pkt_d = Input(new el2_lsu_pkt_t) // lsu packet in d
val lsu_pkt_m = Input(new el2_lsu_pkt_t) // lsu packet in m
val lsu_pkt_r = Input(new el2_lsu_pkt_t) // lsu packet in r
// Outputs
val lsu_c1_m_clk = Output(Clock()) // m pipe single pulse clock
@ -54,92 +54,45 @@ class el2_lsu_clkdomain extends Module {
val scan_mode = Input(Bool())
})
val lsu_c1_d_clken = 0.U
val lsu_c1_m_clken = 0.U
val lsu_c1_r_clken = 0.U
val lsu_c2_m_clken = 0.U
val lsu_c2_r_clken = 0.U
val lsu_c1_d_clken_q = 0.U
val lsu_c1_m_clken_q = 0.U
val lsu_c1_r_clken_q = 0.U
val lsu_store_c1_m_clken = 0.U
val lsu_store_c1_r_clken = 0.U
val lsu_stbuf_c1_clken = 0.U
val lsu_bus_ibuf_c1_clken = 0.U
val lsu_bus_obuf_c1_clken = 0.U
val lsu_bus_buf_c1_clken = 0.U
val lsu_free_c1_clken = 0.U
val lsu_free_c1_clken_q = 0.U
val lsu_free_c2_clken = 0.U
//-------------------------------------------------------------------------------------------
// Clock Enable Logic
//-------------------------------------------------------------------------------------------
val lsu_c1_d_clken = lsu_p.valid | io.dma_dccm_req | io.clk_override
val lsu_c1_m_clken = lsu_pkt_d.valid | lsu_c1_d_clken_q | io.clk_override
val lsu_c1_r_clken = lsu_pkt_m.valid | lsu_c1_m_clken_q | io.clk_override
lsu_c1_d_clken := lsu_p.valid | io.dma_dccm_req | io.clk_override
lsu_c1_m_clken := lsu_pkt_d.valid | lsu_c1_d_clken_q | io.clk_override
lsu_c1_r_clken := lsu_pkt_m.valid | lsu_c1_m_clken_q | io.clk_override
val lsu_c2_m_clken = lsu_c1_m_clken | lsu_c1_m_clken_q | io.clk_override
val lsu_c2_r_clken = lsu_c1_r_clken | lsu_c1_r_clken_q | io.clk_override
lsu_c2_m_clken := lsu_c1_m_clken | lsu_c1_m_clken_q | io.clk_override
lsu_c2_r_clken := lsu_c1_r_clken | lsu_c1_r_clken_q | io.clk_override
val lsu_store_c1_m_clken = ((lsu_c1_m_clken & lsu_pkt_d.store) | io.clk_override)
val lsu_store_c1_r_clken = ((lsu_c1_r_clken & lsu_pkt_m.store) | io.clk_override)
val lsu_stbuf_c1_clken = st_stbu_reqvld_r | io.stbuf_reqvld_any | io.stbuf_reqvld_flushed_any | io.clk_override
val lsu_bus_ibuf_c1_clken = io.lsu_busreq_r | io.clk_override
val lsu_bus_obuf_c1_clken = (io.lsu_bus_buffer_pend_any | io.lsu_busreq_r | io.clk_override) & io.lsu_bus_clk_en
val lsu_bus_buf_c1_clken = ~io.lsu_bus_buffer_empty_any | io.lsu_busreq_r | io.clk_override
lsu_store_c1_m_clken := ((lsu_c1_m_clken & lsu_pkt_d.store) | io.clk_override)
lsu_store_c1_r_clken := ((lsu_c1_r_clken & lsu_pkt_m.store) | io.clk_override)
lsu_stbuf_c1_clken := st_stbu_reqvld_r | io.stbuf_reqvld_any | io.stbuf_reqvld_flushed_any | io.clk_override
lsu_bus_ibuf_c1_clken := io.lsu_busreq_r | io.clk_override
lsu_bus_obuf_c1_clken := (io.lsu_bus_buffer_pend_any | io.lsu_busreq_r | io.clk_override) & io.lsu_bus_clk_en
lsu_bus_buf_c1_clken := ~io.lsu_bus_buffer_empty_any | io.lsu_busreq_r | io.clk_override
val lsu_free_c1_clken = (lsu_p.valid | lsu_pkt_d.valid | lsu_pkt_m.valid | lsu_pkt_r.valid) | ~io.lsu_bus_buffer_empty_any | ~io.lsu_stbuf_empty_any | io.clk_override
val lsu_free_c2_clken = lsu_free_c1_clken | lsu_free_c1_clken_q | io.clk_override
lsu_free_c1_clken := (lsu_p.valid | lsu_pkt_d.valid | lsu_pkt_m.valid | lsu_pkt_r.valid) | ~io.lsu_bus_buffer_empty_any | ~io.lsu_stbuf_empty_any | io.clk_override
lsu_free_c2_clken := lsu_free_c1_clken | lsu_free_c1_clken_q | io.clk_override
io.lsu_c1_m_clk := 0.U // m pipe single pulse clock
io.lsu_c1_r_clk := 0.U // r pipe single pulse clock
val lsu_free_c1_clken_q = withClock(free_clk)RegNext(lsu_free_c1_clken,0.U)
io.lsu_c2_m_clk := 0.U // m pipe double pulse clock
io.lsu_c2_r_clk := 0.U // r pipe double pulse clock
val tuple3( lsu_c1_d_clken_q, lsu_c1_m_clken_q, lsu_c1_r_clken_q) = withClock(lsu_free_c2_clk) {
RegNext(lsu_c1_d_clken, 0.U); RegNext(lsu_c1_m_clken, 0.U); RegNext(lsu_c1_r_clken, 0.U)
}
io.lsu_store_c1_m_clk := 0.U // store in m
io.lsu_store_c1_r_clk := 0.U // store in r
val lsu_c1m_cgc = Module(new rvclkhdr); lsu_c1m_cgc.io.en := lsu_c1_m_clken ; io.lsu_c1_m_clk := lsu_c1m_cgc.io.l1clk ;
val lsu_c1r_cgc = Module(new rvclkhdr); lsu_c1r_cgc.io.en := lsu_c1_r_clken ; io.lsu_c1_r_clk := lsu_c1r_cgc.io.l1clk ;
val lsu_c2m_cgc = Module(new rvclkhdr); lsu_c2m_cgc.io.en := lsu_c2_m_clken ; io.lsu_c2_m_clk := lsu_c2m_cgc.io.l1clk ;
val lsu_c2r_cgc = Module(new rvclkhdr); lsu_c2r_cgc.io.en := lsu_c2_r_clken ; io.lsu_c2_r_clk := lsu_c2r_cgc.io.l1clk ;
val lsu_store_c1m_cgc = Module(new rvclkhdr); lsu_store_c1m_cgc.io.en := lsu_store_c1_m_clken ; io.lsu_store_c1_m_clk := lsu_store_c1m_cgc.io.l1clk ;
val lsu_store_c1r_cgc = Module(new rvclkhdr); lsu_store_c1r_cgc.io.en := lsu_store_c1_r_clken ; io.lsu_store_c1_r_clk := lsu_store_c1r_cgc.io.l1clk ;
val lsu_stbuf_c1_cgc = Module(new rvclkhdr); lsu_stbuf_c1_cgc.io.en := lsu_stbuf_c1_clken ; io.lsu_stbuf_c1_clk := lsu_stbuf_c1_cgc.io.l1clk ;
val lsu_bus_ibuf_c1_cgc = Module(new rvclkhdr); lsu_bus_ibuf_c1_cgc.io.en := lsu_bus_ibuf_c1_clken; io.lsu_bus_ibuf_c1_clk := lsu_bus_ibuf_c1_cgc.io.l1clk;
val lsu_bus_obuf_c1_cgc = Module(new rvclkhdr); lsu_bus_obuf_c1_cgc.io.en := lsu_bus_obuf_c1_clken; io.lsu_bus_obuf_c1_clk := lsu_bus_obuf_c1_cgc.io.l1clk;
val lsu_bus_buf_c1_cgc = Module(new rvclkhdr); lsu_bus_buf_c1_cgc.io.en := lsu_bus_buf_c1_clken ; io.lsu_bus_buf_c1_clk := lsu_bus_buf_c1_cgc.io.l1clk ;
val lsu_busm_cgc = Module(new rvclkhdr); lsu_busm_cgc.io.en := lsu_bus_clk_en ; io.lsu_busm_clk := lsu_busm_cgc.io.l1clk ;
val lsu_free_cgc = Module(new rvclkhdr); lsu_free_cgc.io.en := lsu_free_c2_clken ; io.lsu_free_c2_clk := lsu_free_cgc.io.l1clk ;
io.lsu_stbuf_c1_clk := 0.U
io.lsu_bus_obuf_c1_clk := 0.U // ibuf clock
io.lsu_bus_ibuf_c1_clk := 0.U // ibuf clock
io.lsu_bus_buf_c1_clk := 0.U // ibuf clock
io.lsu_busm_clk := 0.U // bus clock
io.lsu_free_c2_clk := 0.U
/*0.U // Flops
rvdff #(1) lsu_free_c1_clkenff (.din(lsu_free_c1_clken), dout(lsu_free_c1_clken_q), clk(free_clk), *)
rvdff #(1) lsu_c1_d_clkenff (.din(lsu_c1_d_clken), dout(lsu_c1_d_clken_q), clk(lsu_free_c2_clk), *)
rvdff #(1) lsu_c1_m_clkenff (.din(lsu_c1_m_clken), dout(lsu_c1_m_clken_q), clk(lsu_free_c2_clk), *)
rvdff #(1) lsu_c1_r_clkenff (.din(lsu_c1_r_clken), dout(lsu_c1_r_clken_q), clk(lsu_free_c2_clk), *)
// Clock Headers
rvoclkhdr lsu_c1m_cgc ( .en(lsu_c1_m_clken), l1clk(lsu_c1_m_clk), * )
rvoclkhdr lsu_c1r_cgc ( .en(lsu_c1_r_clken), l1clk(lsu_c1_r_clk), * )
rvoclkhdr lsu_c2m_cgc ( .en(lsu_c2_m_clken), l1clk(lsu_c2_m_clk), * )
rvoclkhdr lsu_c2r_cgc ( .en(lsu_c2_r_clken), l1clk(lsu_c2_r_clk), * )
rvoclkhdr lsu_store_c1m_cgc (.en(lsu_store_c1_m_clken), l1clk(lsu_store_c1_m_clk), *)
rvoclkhdr lsu_store_c1r_cgc (.en(lsu_store_c1_r_clken), l1clk(lsu_store_c1_r_clk), *)
rvoclkhdr lsu_stbuf_c1_cgc ( .en(lsu_stbuf_c1_clken), l1clk(lsu_stbuf_c1_clk), * )
rvoclkhdr lsu_bus_ibuf_c1_cgc ( .en(lsu_bus_ibuf_c1_clken), l1clk(lsu_bus_ibuf_c1_clk), * )
rvclkhdr lsu_bus_obuf_c1_cgc ( .en(lsu_bus_obuf_c1_clken), l1clk(lsu_bus_obuf_c1_clk), * )
rvoclkhdr lsu_bus_buf_c1_cgc ( .en(lsu_bus_buf_c1_clken) =
val .l1clk(lsu_bus_buf_c1_clk), * )
rvclkhdr lsu_busm_cgc (.en(lsu_bus_clk_en), l1clk(lsu_busm_clk), *)
rvoclkhdr lsu_free_cgc (.en(lsu_free_c2_clken), l1clk(lsu_free_c2_clk), *)
*/
}