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Message-ID: <20240918100620.103536-4-angelogioacchino.delregno@collabora.com>
Date: Wed, 18 Sep 2024 12:06:20 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: linux-mediatek@...ts.infradead.org
Cc: matthias.bgg@...il.com,
angelogioacchino.delregno@...labora.com,
linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
kernel@...labora.com
Subject: [PATCH v1 3/3] soc: mediatek: mtk-cmdq: Move cmdq_instruction init to declaration
Move, where possible, the initialization of struct cmdq_instruction
variables to their declaration to compress the code.
While at it, also change an instance of open-coded mask to use the
GENMASK() macro instead, and instances of `ret = func(); return ret;`
to the equivalent (but shorter) `return func()`.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
drivers/soc/mediatek/mtk-cmdq-helper.c | 200 ++++++++++++-------------
1 file changed, 93 insertions(+), 107 deletions(-)
diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c
index 4ffd1a35df87..0b274b0fb44f 100644
--- a/drivers/soc/mediatek/mtk-cmdq-helper.c
+++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
@@ -191,13 +191,12 @@ static int cmdq_pkt_mask(struct cmdq_pkt *pkt, u32 mask)
int cmdq_pkt_write(struct cmdq_pkt *pkt, u8 subsys, u16 offset, u32 value)
{
- struct cmdq_instruction inst;
-
- inst.op = CMDQ_CODE_WRITE;
- inst.value = value;
- inst.offset = offset;
- inst.subsys = subsys;
-
+ struct cmdq_instruction inst = {
+ .op = CMDQ_CODE_WRITE,
+ .value = value,
+ .offset = offset,
+ .subsys = subsys
+ };
return cmdq_pkt_append_command(pkt, inst);
}
EXPORT_SYMBOL(cmdq_pkt_write);
@@ -208,30 +207,27 @@ int cmdq_pkt_write_mask(struct cmdq_pkt *pkt, u8 subsys,
u16 offset_mask = offset;
int err;
- if (mask != 0xffffffff) {
+ if (mask != GENMASK(31, 0)) {
err = cmdq_pkt_mask(pkt, mask);
if (err < 0)
return err;
offset_mask |= CMDQ_WRITE_ENABLE_MASK;
}
- err = cmdq_pkt_write(pkt, subsys, offset_mask, value);
-
- return err;
+ return cmdq_pkt_write(pkt, subsys, offset_mask, value);
}
EXPORT_SYMBOL(cmdq_pkt_write_mask);
int cmdq_pkt_read_s(struct cmdq_pkt *pkt, u16 high_addr_reg_idx, u16 addr_low,
u16 reg_idx)
{
- struct cmdq_instruction inst = {};
-
- inst.op = CMDQ_CODE_READ_S;
- inst.dst_t = CMDQ_REG_TYPE;
- inst.sop = high_addr_reg_idx;
- inst.reg_dst = reg_idx;
- inst.src_reg = addr_low;
-
+ struct cmdq_instruction inst = {
+ .op = CMDQ_CODE_READ_S,
+ .dst_t = CMDQ_REG_TYPE,
+ .sop = high_addr_reg_idx,
+ .reg_dst = reg_idx,
+ .src_reg = addr_low
+ };
return cmdq_pkt_append_command(pkt, inst);
}
EXPORT_SYMBOL(cmdq_pkt_read_s);
@@ -239,14 +235,14 @@ EXPORT_SYMBOL(cmdq_pkt_read_s);
int cmdq_pkt_write_s(struct cmdq_pkt *pkt, u16 high_addr_reg_idx,
u16 addr_low, u16 src_reg_idx)
{
- struct cmdq_instruction inst = {};
-
- inst.op = CMDQ_CODE_WRITE_S;
- inst.src_t = CMDQ_REG_TYPE;
- inst.sop = high_addr_reg_idx;
- inst.offset = addr_low;
- inst.src_reg = src_reg_idx;
-
+ struct cmdq_instruction inst = {
+ .op = CMDQ_CODE_WRITE_S,
+ .mask = 0,
+ .src_t = CMDQ_REG_TYPE,
+ .sop = high_addr_reg_idx,
+ .offset = addr_low,
+ .src_reg = src_reg_idx
+ };
return cmdq_pkt_append_command(pkt, inst);
}
EXPORT_SYMBOL(cmdq_pkt_write_s);
@@ -254,20 +250,19 @@ EXPORT_SYMBOL(cmdq_pkt_write_s);
int cmdq_pkt_write_s_mask(struct cmdq_pkt *pkt, u16 high_addr_reg_idx,
u16 addr_low, u16 src_reg_idx, u32 mask)
{
- struct cmdq_instruction inst = {};
+ struct cmdq_instruction inst = {
+ .op = CMDQ_CODE_WRITE_S_MASK,
+ .src_t = CMDQ_REG_TYPE,
+ .sop = high_addr_reg_idx,
+ .offset = addr_low,
+ .src_reg = src_reg_idx,
+ };
int err;
err = cmdq_pkt_mask(pkt, mask);
if (err < 0)
return err;
- inst.mask = 0;
- inst.op = CMDQ_CODE_WRITE_S_MASK;
- inst.src_t = CMDQ_REG_TYPE;
- inst.sop = high_addr_reg_idx;
- inst.offset = addr_low;
- inst.src_reg = src_reg_idx;
-
return cmdq_pkt_append_command(pkt, inst);
}
EXPORT_SYMBOL(cmdq_pkt_write_s_mask);
@@ -275,13 +270,12 @@ EXPORT_SYMBOL(cmdq_pkt_write_s_mask);
int cmdq_pkt_write_s_value(struct cmdq_pkt *pkt, u8 high_addr_reg_idx,
u16 addr_low, u32 value)
{
- struct cmdq_instruction inst = {};
-
- inst.op = CMDQ_CODE_WRITE_S;
- inst.sop = high_addr_reg_idx;
- inst.offset = addr_low;
- inst.value = value;
-
+ struct cmdq_instruction inst = {
+ .op = CMDQ_CODE_WRITE_S,
+ .sop = high_addr_reg_idx,
+ .offset = addr_low,
+ .value = value
+ };
return cmdq_pkt_append_command(pkt, inst);
}
EXPORT_SYMBOL(cmdq_pkt_write_s_value);
@@ -289,18 +283,18 @@ EXPORT_SYMBOL(cmdq_pkt_write_s_value);
int cmdq_pkt_write_s_mask_value(struct cmdq_pkt *pkt, u8 high_addr_reg_idx,
u16 addr_low, u32 value, u32 mask)
{
- struct cmdq_instruction inst = {};
+ struct cmdq_instruction inst = {
+ .op = CMDQ_CODE_WRITE_S_MASK,
+ .sop = high_addr_reg_idx,
+ .offset = addr_low,
+ .value = value
+ };
int err;
err = cmdq_pkt_mask(pkt, mask);
if (err < 0)
return err;
- inst.op = CMDQ_CODE_WRITE_S_MASK;
- inst.sop = high_addr_reg_idx;
- inst.offset = addr_low;
- inst.value = value;
-
return cmdq_pkt_append_command(pkt, inst);
}
EXPORT_SYMBOL(cmdq_pkt_write_s_mask_value);
@@ -333,61 +327,61 @@ EXPORT_SYMBOL(cmdq_pkt_mem_move);
int cmdq_pkt_wfe(struct cmdq_pkt *pkt, u16 event, bool clear)
{
- struct cmdq_instruction inst = { {0} };
u32 clear_option = clear ? CMDQ_WFE_UPDATE : 0;
+ struct cmdq_instruction inst = {
+ .op = CMDQ_CODE_WFE,
+ .value = CMDQ_WFE_OPTION | clear_option,
+ .event = event
+ };
if (unlikely(event >= CMDQ_MAX_EVENT))
return -EINVAL;
- inst.op = CMDQ_CODE_WFE;
- inst.value = CMDQ_WFE_OPTION | clear_option;
- inst.event = event;
-
return cmdq_pkt_append_command(pkt, inst);
}
EXPORT_SYMBOL(cmdq_pkt_wfe);
int cmdq_pkt_acquire_event(struct cmdq_pkt *pkt, u16 event)
{
- struct cmdq_instruction inst = {};
+ struct cmdq_instruction inst = {
+ .op = CMDQ_CODE_WFE,
+ .value = CMDQ_WFE_UPDATE | CMDQ_WFE_UPDATE_VALUE | CMDQ_WFE_WAIT,
+ .event = event
+ };
if (unlikely(event >= CMDQ_MAX_EVENT))
return -EINVAL;
- inst.op = CMDQ_CODE_WFE;
- inst.value = CMDQ_WFE_UPDATE | CMDQ_WFE_UPDATE_VALUE | CMDQ_WFE_WAIT;
- inst.event = event;
-
return cmdq_pkt_append_command(pkt, inst);
}
EXPORT_SYMBOL(cmdq_pkt_acquire_event);
int cmdq_pkt_clear_event(struct cmdq_pkt *pkt, u16 event)
{
- struct cmdq_instruction inst = { {0} };
+ struct cmdq_instruction inst = {
+ .op = CMDQ_CODE_WFE,
+ .value = CMDQ_WFE_UPDATE,
+ .event = event
+ };
if (unlikely(event >= CMDQ_MAX_EVENT))
return -EINVAL;
- inst.op = CMDQ_CODE_WFE;
- inst.value = CMDQ_WFE_UPDATE;
- inst.event = event;
-
return cmdq_pkt_append_command(pkt, inst);
}
EXPORT_SYMBOL(cmdq_pkt_clear_event);
int cmdq_pkt_set_event(struct cmdq_pkt *pkt, u16 event)
{
- struct cmdq_instruction inst = {};
+ struct cmdq_instruction inst = {
+ .op = CMDQ_CODE_WFE,
+ .value = CMDQ_WFE_UPDATE | CMDQ_WFE_UPDATE_VALUE,
+ .event = event
+ };
if (unlikely(event >= CMDQ_MAX_EVENT))
return -EINVAL;
- inst.op = CMDQ_CODE_WFE;
- inst.value = CMDQ_WFE_UPDATE | CMDQ_WFE_UPDATE_VALUE;
- inst.event = event;
-
return cmdq_pkt_append_command(pkt, inst);
}
EXPORT_SYMBOL(cmdq_pkt_set_event);
@@ -395,16 +389,13 @@ EXPORT_SYMBOL(cmdq_pkt_set_event);
int cmdq_pkt_poll(struct cmdq_pkt *pkt, u8 subsys,
u16 offset, u32 value)
{
- struct cmdq_instruction inst = { {0} };
- int err;
-
- inst.op = CMDQ_CODE_POLL;
- inst.value = value;
- inst.offset = offset;
- inst.subsys = subsys;
- err = cmdq_pkt_append_command(pkt, inst);
-
- return err;
+ struct cmdq_instruction inst = {
+ .op = CMDQ_CODE_POLL,
+ .value = value,
+ .offset = offset,
+ .subsys = subsys
+ };
+ return cmdq_pkt_append_command(pkt, inst);
}
EXPORT_SYMBOL(cmdq_pkt_poll);
@@ -418,9 +409,7 @@ int cmdq_pkt_poll_mask(struct cmdq_pkt *pkt, u8 subsys,
return err;
offset = offset | CMDQ_POLL_ENABLE_MASK;
- err = cmdq_pkt_poll(pkt, subsys, offset, value);
-
- return err;
+ return cmdq_pkt_poll(pkt, subsys, offset, value);
}
EXPORT_SYMBOL(cmdq_pkt_poll_mask);
@@ -474,11 +463,12 @@ int cmdq_pkt_logic_command(struct cmdq_pkt *pkt, u16 result_reg_idx,
enum cmdq_logic_op s_op,
struct cmdq_operand *right_operand)
{
- struct cmdq_instruction inst = { {0} };
+ struct cmdq_instruction inst;
if (unlikely(!left_operand || !right_operand || s_op >= CMDQ_LOGIC_MAX))
return -EINVAL;
+ inst.value = 0;
inst.op = CMDQ_CODE_LOGIC;
inst.dst_t = CMDQ_REG_TYPE;
inst.src_t = cmdq_operand_get_type(left_operand);
@@ -494,43 +484,43 @@ EXPORT_SYMBOL(cmdq_pkt_logic_command);
int cmdq_pkt_assign(struct cmdq_pkt *pkt, u16 reg_idx, u32 value)
{
- struct cmdq_instruction inst = {};
-
- inst.op = CMDQ_CODE_LOGIC;
- inst.dst_t = CMDQ_REG_TYPE;
- inst.reg_dst = reg_idx;
- inst.value = value;
+ struct cmdq_instruction inst = {
+ .op = CMDQ_CODE_LOGIC,
+ .dst_t = CMDQ_REG_TYPE,
+ .reg_dst = reg_idx,
+ .value = value
+ };
return cmdq_pkt_append_command(pkt, inst);
}
EXPORT_SYMBOL(cmdq_pkt_assign);
int cmdq_pkt_jump_abs(struct cmdq_pkt *pkt, dma_addr_t addr, u8 shift_pa)
{
- struct cmdq_instruction inst = {};
-
- inst.op = CMDQ_CODE_JUMP;
- inst.offset = CMDQ_JUMP_ABSOLUTE;
- inst.value = addr >> shift_pa;
+ struct cmdq_instruction inst = {
+ .op = CMDQ_CODE_JUMP,
+ .offset = CMDQ_JUMP_ABSOLUTE,
+ .value = addr >> shift_pa
+ };
return cmdq_pkt_append_command(pkt, inst);
}
EXPORT_SYMBOL(cmdq_pkt_jump_abs);
int cmdq_pkt_jump_rel(struct cmdq_pkt *pkt, s32 offset, u8 shift_pa)
{
- struct cmdq_instruction inst = { {0} };
-
- inst.op = CMDQ_CODE_JUMP;
- inst.value = (u32)offset >> shift_pa;
+ struct cmdq_instruction inst = {
+ .op = CMDQ_CODE_JUMP,
+ .value = (u32)offset >> shift_pa
+ };
return cmdq_pkt_append_command(pkt, inst);
}
EXPORT_SYMBOL(cmdq_pkt_jump_rel);
int cmdq_pkt_eoc(struct cmdq_pkt *pkt)
{
- struct cmdq_instruction inst = { {0} };
-
- inst.op = CMDQ_CODE_EOC;
- inst.value = CMDQ_EOC_IRQ_EN;
+ struct cmdq_instruction inst = {
+ .op = CMDQ_CODE_EOC,
+ .value = CMDQ_EOC_IRQ_EN
+ };
return cmdq_pkt_append_command(pkt, inst);
}
EXPORT_SYMBOL(cmdq_pkt_eoc);
@@ -541,9 +531,7 @@ int cmdq_pkt_finalize(struct cmdq_pkt *pkt)
int err;
/* insert EOC and generate IRQ for each command iteration */
- inst.op = CMDQ_CODE_EOC;
- inst.value = CMDQ_EOC_IRQ_EN;
- err = cmdq_pkt_append_command(pkt, inst);
+ err = cmdq_pkt_eoc(pkt);
if (err < 0)
return err;
@@ -551,9 +539,7 @@ int cmdq_pkt_finalize(struct cmdq_pkt *pkt)
inst.op = CMDQ_CODE_JUMP;
inst.value = CMDQ_JUMP_PASS >>
cmdq_get_shift_pa(((struct cmdq_client *)pkt->cl)->chan);
- err = cmdq_pkt_append_command(pkt, inst);
-
- return err;
+ return cmdq_pkt_append_command(pkt, inst);
}
EXPORT_SYMBOL(cmdq_pkt_finalize);
--
2.46.0
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