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disp: msm: sde: add system cache support for writeback

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Add support to enable writeback block to use system cache for writing
the output buffer. This is useful in cases where output is routed to
primary source pipes with 2-pass composition. The implementation is
modelled based on existing pipe based cache configuration.

Change-Id: I2b9a96c5b42eb5727d11ca0f337aeeb4e69362c9
Signed-off-by: Veera Sundaram Sankaran <veeras@codeaurora.org>
This commit is contained in:
Veera Sundaram Sankaran
2021-07-22 10:41:57 -07:00
parent 5464d726ba
commit 825bb55976
7 changed files with 128 additions and 67 deletions
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10
msm/sde/sde_hw_sspp.c
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@@ -1148,19 +1148,19 @@ static void sde_hw_sspp_setup_sys_cache(struct sde_hw_pipe *ctx,
val = SDE_REG_READ(&ctx->hw, SSPP_SYS_CACHE_MODE + idx);
if (cfg->flags & SSPP_SYS_CACHE_EN_FLAG)
if (cfg->flags & SYS_CACHE_EN_FLAG)
val = (val & ~BIT(15)) | ((cfg->rd_en & 0x1) << 15);
if (cfg->flags & SSPP_SYS_CACHE_SCID)
if (cfg->flags & SYS_CACHE_SCID)
val = (val & ~0x1F00) | ((cfg->rd_scid & 0x1f) << 8);
if (cfg->flags & SSPP_SYS_CACHE_OP_MODE)
if (cfg->flags & SYS_CACHE_OP_MODE)
val = (val & ~0xC0000) | ((cfg->op_mode & 0x3) << 18);
if (cfg->flags & SSPP_SYS_CACHE_OP_TYPE)
if (cfg->flags & SYS_CACHE_OP_TYPE)
val = (val & ~0xF) | ((cfg->rd_op_type & 0xf) << 0);
if (cfg->flags & SSPP_SYS_CACHE_NO_ALLOC)
if (cfg->flags & SYS_CACHE_NO_ALLOC)
val = (val & ~0x10) | ((cfg->rd_noallocate & 0x1) << 4);
SDE_REG_WRITE(&ctx->hw, SSPP_SYS_CACHE_MODE + idx, val);