<html><body><p> <pre> Hi Angelo, On Tue, 2024-05-28 at 12:24 +0200, AngeloGioacchino Del Regno wrote: > Il 26/05/24 01:08, Jason-JH.Lin ha scritto: > > Add cmdq_pkt_logic_command to support math operation. > > > > cmdq_pkt_logic_command can append logic command to the CMDQ packet, > > ask GCE to execute a arithmetic calculate instruction, > > such as add, subtract, multiply, AND, OR and NOT, etc. > > > > Note that all arithmetic instructions are unsigned calculations. > > If there are any overflows, GCE will sent the invalid IRQ to notify > > CMDQ driver. > > > > Signed-off-by: Jason-JH.Lin <jason-jh.lin@mediatek.com> > > Signed-off-by: Hsiao Chien Sung <shawn.sung@mediatek.com> > > --- > > drivers/soc/mediatek/mtk-cmdq-helper.c | 36 > > ++++++++++++++++++++++ > > include/linux/soc/mediatek/mtk-cmdq.h | 42 > > ++++++++++++++++++++++++++ > > 2 files changed, 78 insertions(+) > > > > diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c > > b/drivers/soc/mediatek/mtk-cmdq-helper.c > > index 046522664dc1..42fae05f61a8 100644 > > --- a/drivers/soc/mediatek/mtk-cmdq-helper.c > > +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c > > @@ -15,10 +15,19 @@ > > /* dedicate the last GPR_R15 to assign the register address to be > > poll */ > > #define CMDQ_POLL_ADDR_GPR(15) > > #define CMDQ_EOC_IRQ_ENBIT(0) > > +#define CMDQ_IMMEDIATE_VALUE0 > > #define CMDQ_REG_TYPE1 > > #define CMDQ_JUMP_RELATIVE0 > > #define CMDQ_JUMP_ABSOLUTE1 > > > > +#define CMDQ_OPERAND_GET_IDX_VALUE(operand) \ > > +({ \ > > +struct cmdq_operand *op = operand; \ > > +op->reg ? op->idx : op->value; \ > > +}) > > I think this CMDQ_OPERAND_GET_IDX_VALUE would be better expressed as > a (inline?) > function instead... > Yes, I can change them to static inline function to pass their type directly. > static inline u16 cmdq_operand_get_idx_value(struct cmdq_operand *op) > { > return op->reg ? op->idx : op->value; > } > > and maybe the same for the other definition too.. > > static inline u16 cmdq_operand_type(struct cmdq_operand *op) > { > return op->reg ? CMDQ_REG_TYPE : CMDQ_IMMEDIATE_VALUE; > } > > but definitely the first one is what I don't like much, the second > one can pass. > You mean '#define CMDQ_OPERAND_GET_IDX_VALUE()' is the first one or 'static inline u16 cmdq_operand_get_idx_value()' is the first one? Regards, Jason-JH.Lin > Cheers, > Angelo > > > +#define CMDQ_OPERAND_TYPE(operand) \ > > +((operand)->reg ? CMDQ_REG_TYPE : CMDQ_IMMEDIATE_VALUE) > > + > > struct cmdq_instruction { > > union { > > u32 value; > > @@ -461,6 +470,33 @@ int cmdq_pkt_poll_addr(struct cmdq_pkt *pkt, > > dma_addr_t addr, u32 value, u32 mas > > } > > EXPORT_SYMBOL(cmdq_pkt_poll_addr); > > > > +int cmdq_pkt_logic_command(struct cmdq_pkt *pkt, u16 > > result_reg_idx, > > + struct cmdq_operand *left_operand, > > + enum cmdq_logic_op s_op, > > + struct cmdq_operand *right_operand) > > +{ > > +struct cmdq_instruction inst = { {0} }; > > +u32 left_idx_value; > > +u32 right_idx_value; > > + > > +if (!left_operand || !right_operand || s_op >= CMDQ_LOGIC_MAX) > > +return -EINVAL; > > + > > +left_idx_value = CMDQ_OPERAND_GET_IDX_VALUE(left_operand); > > +right_idx_value = CMDQ_OPERAND_GET_IDX_VALUE(right_operand); > > +inst.op = CMDQ_CODE_LOGIC; > > +inst.dst_t = CMDQ_REG_TYPE; > > +inst.src_t = CMDQ_OPERAND_TYPE(left_operand); > > +inst.arg_c_t = CMDQ_OPERAND_TYPE(right_operand); > > +inst.sop = s_op; > > +inst.reg_dst = result_reg_idx; > > +inst.src_reg = left_idx_value; > > +inst.arg_c = right_idx_value; > > + > > +return cmdq_pkt_append_command(pkt, inst); > > +} > > +EXPORT_SYMBOL(cmdq_pkt_logic_command); > > + > > int cmdq_pkt_assign(struct cmdq_pkt *pkt, u16 reg_idx, u32 value) > > { > > struct cmdq_instruction inst = {}; > > diff --git a/include/linux/soc/mediatek/mtk-cmdq.h > > b/include/linux/soc/mediatek/mtk-cmdq.h > > index d4a8e34505e6..5bee6f7fc400 100644 > > --- a/include/linux/soc/mediatek/mtk-cmdq.h > > +++ b/include/linux/soc/mediatek/mtk-cmdq.h > > @@ -25,6 +25,31 @@ > > > > struct cmdq_pkt; > > > > +enum cmdq_logic_op { > > +CMDQ_LOGIC_ASSIGN = 0, > > +CMDQ_LOGIC_ADD = 1, > > +CMDQ_LOGIC_SUBTRACT = 2, > > +CMDQ_LOGIC_MULTIPLY = 3, > > +CMDQ_LOGIC_XOR = 8, > > +CMDQ_LOGIC_NOT = 9, > > +CMDQ_LOGIC_OR = 10, > > +CMDQ_LOGIC_AND = 11, > > +CMDQ_LOGIC_LEFT_SHIFT = 12, > > +CMDQ_LOGIC_RIGHT_SHIFT = 13, > > +CMDQ_LOGIC_MAX, > > +}; > > + > > +struct cmdq_operand { > > +/* register type */ > > +bool reg; > > +union { > > +/* index */ > > +u16 idx; > > +/* value */ > > +u16 value; > > +}; > > +}; > > + > > struct cmdq_client_reg { > > u8 subsys; > > u16 offset; > > @@ -272,6 +297,23 @@ int cmdq_pkt_poll(struct cmdq_pkt *pkt, u8 > > subsys, > > int cmdq_pkt_poll_mask(struct cmdq_pkt *pkt, u8 subsys, > > u16 offset, u32 value, u32 mask); > > > > +/** > > + * cmdq_pkt_logic_command() - Append logic command to the CMDQ > > packet, ask GCE to > > + * execute an instruction that store the result > > of logic operation > > + * with left and right operand into > > result_reg_idx. > > + * @pkt:the CMDQ packet > > + * @result_reg_idx:SPR index that store operation result > > of left_operand and right_operand > > + * @left_operand:left operand > > + * @s_op:the logic operator enum > > + * @right_operand:right operand > > + * > > + * Return: 0 for success; else the error code is returned > > + */ > > +int cmdq_pkt_logic_command(struct cmdq_pkt *pkt, u16 > > result_reg_idx, > > + struct cmdq_operand *left_operand, > > + enum cmdq_logic_op s_op, > > + struct cmdq_operand *right_operand); > > + > > /** > > * cmdq_pkt_assign() - Append logic assign command to the CMDQ > > packet, ask GCE > > * to execute an instruction that set a > > constant value into > > > > </pre> </p></body></html><pre>************* MEDIATEK Confidentiality Notice ******************** The information contained in this e-mail message (including any attachments) may be confidential, proprietary, privileged, or otherwise exempt from disclosure under applicable laws. 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