Messages in this thread | | | Subject | Re: [PATCH 05/11] ASoC: amd: pte offset related dma driver changes | From | "Mukunda,Vijendar" <> | Date | Mon, 30 Apr 2018 13:49:56 +0530 |
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On Monday 30 April 2018 03:18 AM, Daniel Kurtz wrote: > On Thu, Apr 26, 2018 at 5:16 AM Vijendar Mukunda <Vijendar.Mukunda@amd.com> > wrote: > >> Added pte offset variable in audio_substream_data structure. >> Added Stoney related PTE offset macros in acp header file. >> Modified hw_params callback to assign the pte offset value >> based on asic_type. > >> Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com> >> --- >> sound/soc/amd/acp-pcm-dma.c | 26 +++++++++++++++++++------- >> sound/soc/amd/acp.h | 5 +++++ >> 2 files changed, 24 insertions(+), 7 deletions(-) > >> diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c >> index 5f34be1..cb22653 100644 >> --- a/sound/soc/amd/acp-pcm-dma.c >> +++ b/sound/soc/amd/acp-pcm-dma.c >> @@ -320,13 +320,11 @@ static void config_acp_dma(void __iomem *acp_mmio, >> struct audio_substream_data *rtd, >> u32 asic_type) >> { >> - u32 pte_offset, sram_bank; >> + u32 sram_bank; > >> - if (rtd->direction == SNDRV_PCM_STREAM_PLAYBACK) { >> - pte_offset = ACP_PLAYBACK_PTE_OFFSET; >> + if (rtd->direction == SNDRV_PCM_STREAM_PLAYBACK) >> sram_bank = ACP_SHARED_RAM_BANK_1_ADDRESS; >> - } else { >> - pte_offset = ACP_CAPTURE_PTE_OFFSET; >> + else { >> switch (asic_type) { >> case CHIP_STONEY: >> sram_bank = ACP_SHARED_RAM_BANK_3_ADDRESS; >> @@ -336,10 +334,10 @@ static void config_acp_dma(void __iomem *acp_mmio, >> } >> } >> acp_pte_config(acp_mmio, rtd->pg, rtd->num_of_pages, >> - pte_offset); >> + rtd->pte_offset); >> /* Configure System memory <-> ACP SRAM DMA descriptors */ >> set_acp_sysmem_dma_descriptors(acp_mmio, rtd->size, >> - rtd->direction, pte_offset, >> + rtd->direction, rtd->pte_offset, >> rtd->ch1, sram_bank, >> rtd->dma_dscr_idx_1, asic_type); >> /* Configure ACP SRAM <-> I2S DMA descriptors */ >> @@ -788,6 +786,13 @@ static int acp_dma_hw_params(struct > snd_pcm_substream *substream, >> } > >> if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { >> + switch (adata->asic_type) { >> + case CHIP_STONEY: >> + rtd->pte_offset = ACP_ST_PLAYBACK_PTE_OFFSET; >> + break; >> + default: >> + rtd->pte_offset = ACP_PLAYBACK_PTE_OFFSET; >> + } > > As in patch 2, I believe this would be better done in acp_dma_open(). > > Why does Stoney use a different PTE_OFFSET? Please answer this question in > the commit message. > > -Dan
We will modify commit message and post the fresh patch.
-Vijendar > >> rtd->ch1 = SYSRAM_TO_ACP_CH_NUM; >> rtd->ch2 = ACP_TO_I2S_DMA_CH_NUM; >> rtd->destination = TO_ACP_I2S_1; >> @@ -797,6 +802,13 @@ static int acp_dma_hw_params(struct > snd_pcm_substream *substream, >> mmACP_I2S_TRANSMIT_BYTE_CNT_HIGH; >> rtd->byte_cnt_low_reg_offset = > mmACP_I2S_TRANSMIT_BYTE_CNT_LOW; >> } else { >> + switch (adata->asic_type) { >> + case CHIP_STONEY: >> + rtd->pte_offset = ACP_ST_CAPTURE_PTE_OFFSET; >> + break; >> + default: >> + rtd->pte_offset = ACP_CAPTURE_PTE_OFFSET; >> + } >> rtd->ch1 = SYSRAM_TO_ACP_CH_NUM; >> rtd->ch2 = ACP_TO_I2S_DMA_CH_NUM; >> rtd->destination = FROM_ACP_I2S_1; >> diff --git a/sound/soc/amd/acp.h b/sound/soc/amd/acp.h >> index 82470bc..2f48d1d 100644 >> --- a/sound/soc/amd/acp.h >> +++ b/sound/soc/amd/acp.h >> @@ -10,6 +10,10 @@ >> #define ACP_PLAYBACK_PTE_OFFSET 10 >> #define ACP_CAPTURE_PTE_OFFSET 0 > >> +/* Playback and Capture Offset for Stoney */ >> +#define ACP_ST_PLAYBACK_PTE_OFFSET 0x04 >> +#define ACP_ST_CAPTURE_PTE_OFFSET 0x00 >> + >> #define ACP_GARLIC_CNTL_DEFAULT 0x00000FB4 >> #define ACP_ONION_CNTL_DEFAULT 0x00000FB4 > >> @@ -90,6 +94,7 @@ struct audio_substream_data { >> u16 destination; >> u16 dma_dscr_idx_1; >> u16 dma_dscr_idx_2; >> + u32 pte_offset; >> u32 byte_cnt_high_reg_offset; >> u32 byte_cnt_low_reg_offset; >> uint64_t size; >> -- >> 2.7.4
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