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| author | Akash Asthana <akashast@codeaurora.org> | 2020-06-23 13:38:50 +0300 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2020-06-25 07:49:00 +0300 |
| commit | 58ffbba6a39979baa22d2f7e69faeffa2d9c0641 (patch) | |
| tree | a748e8a0a8329492ef8cbe1ae924962d900229d7 /include/linux/qcom-geni-se.h | |
| parent | be24c6a71ecfbd9436ea1f496eb518a53e06368c (diff) | |
| download | linux-58ffbba6a39979baa22d2f7e69faeffa2d9c0641.tar.xz | |
soc: qcom: geni: Support for ICC voting
Add necessary macros and structure variables to support ICC BW
voting from individual SE drivers.
Signed-off-by: Akash Asthana <akashast@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Link: https://lore.kernel.org/r/1592908737-7068-2-git-send-email-akashast@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'include/linux/qcom-geni-se.h')
| -rw-r--r-- | include/linux/qcom-geni-se.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/include/linux/qcom-geni-se.h b/include/linux/qcom-geni-se.h index dd464943f717..80dbc01904d6 100644 --- a/include/linux/qcom-geni-se.h +++ b/include/linux/qcom-geni-se.h @@ -6,6 +6,8 @@ #ifndef _LINUX_QCOM_GENI_SE #define _LINUX_QCOM_GENI_SE +#include <linux/interconnect.h> + /* Transfer mode supported by GENI Serial Engines */ enum geni_se_xfer_mode { GENI_SE_INVALID, @@ -25,6 +27,17 @@ enum geni_se_protocol_type { struct geni_wrapper; struct clk; +enum geni_icc_path_index { + GENI_TO_CORE, + CPU_TO_GENI, + GENI_TO_DDR +}; + +struct geni_icc_path { + struct icc_path *path; + unsigned int avg_bw; +}; + /** * struct geni_se - GENI Serial Engine * @base: Base Address of the Serial Engine's register block @@ -33,6 +46,7 @@ struct clk; * @clk: Handle to the core serial engine clock * @num_clk_levels: Number of valid clock levels in clk_perf_tbl * @clk_perf_tbl: Table of clock frequency input to serial engine clock + * @icc_paths: Array of ICC paths for SE */ struct geni_se { void __iomem *base; @@ -41,6 +55,7 @@ struct geni_se { struct clk *clk; unsigned int num_clk_levels; unsigned long *clk_perf_tbl; + struct geni_icc_path icc_paths[3]; }; /* Common SE registers */ @@ -229,6 +244,21 @@ struct geni_se { #define GENI_SE_VERSION_MINOR(ver) ((ver & HW_VER_MINOR_MASK) >> HW_VER_MINOR_SHFT) #define GENI_SE_VERSION_STEP(ver) (ver & HW_VER_STEP_MASK) +/* + * Define bandwidth thresholds that cause the underlying Core 2X interconnect + * clock to run at the named frequency. These baseline values are recommended + * by the hardware team, and are not dynamically scaled with GENI bandwidth + * beyond basic on/off. + */ +#define CORE_2X_19_2_MHZ 960 +#define CORE_2X_50_MHZ 2500 +#define CORE_2X_100_MHZ 5000 +#define CORE_2X_150_MHZ 7500 +#define CORE_2X_200_MHZ 10000 +#define CORE_2X_236_MHZ 16383 + +#define GENI_DEFAULT_BW Bps_to_icc(1000) + #if IS_ENABLED(CONFIG_QCOM_GENI_SE) u32 geni_se_get_qup_hw_version(struct geni_se *se); @@ -416,5 +446,13 @@ int geni_se_rx_dma_prep(struct geni_se *se, void *buf, size_t len, void geni_se_tx_dma_unprep(struct geni_se *se, dma_addr_t iova, size_t len); void geni_se_rx_dma_unprep(struct geni_se *se, dma_addr_t iova, size_t len); + +int geni_icc_get(struct geni_se *se, const char *icc_ddr); + +int geni_icc_set_bw(struct geni_se *se); + +int geni_icc_enable(struct geni_se *se); + +int geni_icc_disable(struct geni_se *se); #endif #endif |