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From 6a6e78d8c19b1e88124f6349ec4db690c9653c2e Mon Sep 17 00:00:00 2001
From: Yongqiang Sun <yongqiang.sun@amd.com>
Date: Wed, 13 Feb 2019 10:35:43 -0500
Subject: [PATCH 1585/2940] drm/amd/display: Refactor reg_set and reg_update.
[Why]
Current reg update and reg set use same functions and
only delta is update reads reg value and call update function.
[How]
Refactor reg update and reg set functions.
1.Implement different functions for reg update and reg set.
2.Wrap same process to a help function, both reg update and
reg set will call it.
Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
---
drivers/gpu/drm/amd/display/dc/dc_helper.c | 52 +++++++++++++++----
.../amd/display/dc/dcn10/dcn10_link_encoder.c | 2 -
drivers/gpu/drm/amd/display/dc/dm_services.h | 9 ++--
.../gpu/drm/amd/display/dc/inc/reg_helper.h | 3 +-
4 files changed, 50 insertions(+), 16 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dc_helper.c b/drivers/gpu/drm/amd/display/dc/dc_helper.c
index 5ba53947ad17..0ac1b8364d14 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_helper.c
+++ b/drivers/gpu/drm/amd/display/dc/dc_helper.c
@@ -70,20 +70,16 @@ static inline void set_reg_field_value_masks(
field_value_mask->mask = field_value_mask->mask | mask;
}
-uint32_t generic_reg_update_ex(const struct dc_context *ctx,
- uint32_t addr, uint32_t reg_val, int n,
+static void set_reg_field_values(struct dc_reg_value_masks *field_value_mask,
+ uint32_t addr, int n,
uint8_t shift1, uint32_t mask1, uint32_t field_value1,
- ...)
+ va_list ap)
{
- struct dc_reg_value_masks field_value_mask = {0};
uint32_t shift, mask, field_value;
int i = 1;
- va_list ap;
- va_start(ap, field_value1);
-
/* gather all bits value/mask getting updated in this register */
- set_reg_field_value_masks(&field_value_mask,
+ set_reg_field_value_masks(field_value_mask,
field_value1, mask1, shift1);
while (i < n) {
@@ -91,10 +87,48 @@ uint32_t generic_reg_update_ex(const struct dc_context *ctx,
mask = va_arg(ap, uint32_t);
field_value = va_arg(ap, uint32_t);
- set_reg_field_value_masks(&field_value_mask,
+ set_reg_field_value_masks(field_value_mask,
field_value, mask, shift);
i++;
}
+}
+
+uint32_t generic_reg_update_ex(const struct dc_context *ctx,
+ uint32_t addr, int n,
+ uint8_t shift1, uint32_t mask1, uint32_t field_value1,
+ ...)
+{
+ struct dc_reg_value_masks field_value_mask = {0};
+ uint32_t reg_val;
+ va_list ap;
+
+ va_start(ap, field_value1);
+
+ set_reg_field_values(&field_value_mask, addr, n, shift1, mask1,
+ field_value1, ap);
+
+ va_end(ap);
+
+ /* mmio write directly */
+ reg_val = dm_read_reg(ctx, addr);
+ reg_val = (reg_val & ~field_value_mask.mask) | field_value_mask.value;
+ dm_write_reg(ctx, addr, reg_val);
+ return reg_val;
+}
+
+uint32_t generic_reg_set_ex(const struct dc_context *ctx,
+ uint32_t addr, uint32_t reg_val, int n,
+ uint8_t shift1, uint32_t mask1, uint32_t field_value1,
+ ...)
+{
+ struct dc_reg_value_masks field_value_mask = {0};
+ va_list ap;
+
+ va_start(ap, field_value1);
+
+ set_reg_field_values(&field_value_mask, addr, n, shift1, mask1,
+ field_value1, ap);
+
va_end(ap);
#ifdef CONFIG_DRM_AMD_DC_DMUB
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c
index a9db372688ff..0126a44ba012 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c
@@ -1304,7 +1304,6 @@ void dcn10_link_encoder_connect_dig_be_to_fe(
#define HPD_REG_UPDATE_N(reg_name, n, ...) \
generic_reg_update_ex(CTX, \
HPD_REG(reg_name), \
- HPD_REG_READ(reg_name), \
n, __VA_ARGS__)
#define HPD_REG_UPDATE(reg_name, field, val) \
@@ -1337,7 +1336,6 @@ void dcn10_link_encoder_disable_hpd(struct link_encoder *enc)
#define AUX_REG_UPDATE_N(reg_name, n, ...) \
generic_reg_update_ex(CTX, \
AUX_REG(reg_name), \
- AUX_REG_READ(reg_name), \
n, __VA_ARGS__)
#define AUX_REG_UPDATE(reg_name, field, val) \
diff --git a/drivers/gpu/drm/amd/display/dc/dm_services.h b/drivers/gpu/drm/amd/display/dc/dm_services.h
index 56832425a4d5..a62d53a1df31 100644
--- a/drivers/gpu/drm/amd/display/dc/dm_services.h
+++ b/drivers/gpu/drm/amd/display/dc/dm_services.h
@@ -144,10 +144,14 @@ static inline uint32_t set_reg_field_value_ex(
reg_name ## __ ## reg_field ## _MASK,\
reg_name ## __ ## reg_field ## __SHIFT)
-uint32_t generic_reg_update_ex(const struct dc_context *ctx,
+uint32_t generic_reg_set_ex(const struct dc_context *ctx,
uint32_t addr, uint32_t reg_val, int n,
uint8_t shift1, uint32_t mask1, uint32_t field_value1, ...);
+uint32_t generic_reg_update_ex(const struct dc_context *ctx,
+ uint32_t addr, int n,
+ uint8_t shift1, uint32_t mask1, uint32_t field_value1, ...);
+
#define FD(reg_field) reg_field ## __SHIFT, \
reg_field ## _MASK
@@ -172,11 +176,10 @@ unsigned int generic_reg_wait(const struct dc_context *ctx,
#define generic_reg_update_soc15(ctx, inst_offset, reg_name, n, ...)\
generic_reg_update_ex(ctx, DCE_BASE.instance[0].segment[mm##reg_name##_BASE_IDX] + mm##reg_name + inst_offset, \
- dm_read_reg_func(ctx, mm##reg_name + DCE_BASE.instance[0].segment[mm##reg_name##_BASE_IDX] + inst_offset, __func__), \
n, __VA_ARGS__)
#define generic_reg_set_soc15(ctx, inst_offset, reg_name, n, ...)\
- generic_reg_update_ex(ctx, DCE_BASE.instance[0].segment[mm##reg_name##_BASE_IDX] + mm##reg_name + inst_offset, 0, \
+ generic_reg_set_ex(ctx, DCE_BASE.instance[0].segment[mm##reg_name##_BASE_IDX] + mm##reg_name + inst_offset, 0, \
n, __VA_ARGS__)
#define get_reg_field_value_soc15(reg_value, block, reg_num, reg_name, reg_field)\
diff --git a/drivers/gpu/drm/amd/display/dc/inc/reg_helper.h b/drivers/gpu/drm/amd/display/dc/inc/reg_helper.h
index 6b808cb1895c..50b221f77a75 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/reg_helper.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/reg_helper.h
@@ -52,7 +52,7 @@
/* macro to set register fields. */
#define REG_SET_N(reg_name, n, initial_val, ...) \
- generic_reg_update_ex(CTX, \
+ generic_reg_set_ex(CTX, \
REG(reg_name), \
initial_val, \
n, __VA_ARGS__)
@@ -225,7 +225,6 @@
#define REG_UPDATE_N(reg_name, n, ...) \
generic_reg_update_ex(CTX, \
REG(reg_name), \
- REG_READ(reg_name), \
n, __VA_ARGS__)
#define REG_UPDATE(reg_name, field, val) \
--
2.17.1
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