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path: root/drivers/gpu/drm/i915/intel_bios.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_bios.c')
-rw-r--r--drivers/gpu/drm/i915/intel_bios.c200
1 files changed, 102 insertions, 98 deletions
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 183e87e8ea31..5949750a35ee 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -452,24 +452,24 @@ parse_general_definitions(struct drm_i915_private *dev_priv,
}
}
-static const union child_device_config *
-child_device_ptr(const struct bdb_general_definitions *p_defs, int i)
+static const struct child_device_config *
+child_device_ptr(const struct bdb_general_definitions *defs, int i)
{
- return (const void *) &p_defs->devices[i * p_defs->child_dev_size];
+ return (const void *) &defs->devices[i * defs->child_dev_size];
}
static void
parse_sdvo_device_mapping(struct drm_i915_private *dev_priv,
const struct bdb_header *bdb)
{
- struct sdvo_device_mapping *p_mapping;
- const struct bdb_general_definitions *p_defs;
- const struct old_child_dev_config *child; /* legacy */
+ struct sdvo_device_mapping *mapping;
+ const struct bdb_general_definitions *defs;
+ const struct child_device_config *child;
int i, child_device_num, count;
u16 block_size;
- p_defs = find_section(bdb, BDB_GENERAL_DEFINITIONS);
- if (!p_defs) {
+ defs = find_section(bdb, BDB_GENERAL_DEFINITIONS);
+ if (!defs) {
DRM_DEBUG_KMS("No general definition block is found, unable to construct sdvo mapping.\n");
return;
}
@@ -479,18 +479,17 @@ parse_sdvo_device_mapping(struct drm_i915_private *dev_priv,
* device size matches that of the *legacy* child device config
* struct. Thus, SDVO mapping will be skipped for newer VBT.
*/
- if (p_defs->child_dev_size != sizeof(*child)) {
+ if (defs->child_dev_size != LEGACY_CHILD_DEVICE_CONFIG_SIZE) {
DRM_DEBUG_KMS("Unsupported child device size for SDVO mapping.\n");
return;
}
/* get the block size of general definitions */
- block_size = get_blocksize(p_defs);
+ block_size = get_blocksize(defs);
/* get the number of child device */
- child_device_num = (block_size - sizeof(*p_defs)) /
- p_defs->child_dev_size;
+ child_device_num = (block_size - sizeof(*defs)) / defs->child_dev_size;
count = 0;
for (i = 0; i < child_device_num; i++) {
- child = &child_device_ptr(p_defs, i)->old;
+ child = child_device_ptr(defs, i);
if (!child->device_type) {
/* skip the device block if device type is invalid */
continue;
@@ -514,20 +513,20 @@ parse_sdvo_device_mapping(struct drm_i915_private *dev_priv,
child->slave_addr,
(child->dvo_port == DEVICE_PORT_DVOB) ?
"SDVOB" : "SDVOC");
- p_mapping = &dev_priv->vbt.sdvo_mappings[child->dvo_port - 1];
- if (!p_mapping->initialized) {
- p_mapping->dvo_port = child->dvo_port;
- p_mapping->slave_addr = child->slave_addr;
- p_mapping->dvo_wiring = child->dvo_wiring;
- p_mapping->ddc_pin = child->ddc_pin;
- p_mapping->i2c_pin = child->i2c_pin;
- p_mapping->initialized = 1;
+ mapping = &dev_priv->vbt.sdvo_mappings[child->dvo_port - 1];
+ if (!mapping->initialized) {
+ mapping->dvo_port = child->dvo_port;
+ mapping->slave_addr = child->slave_addr;
+ mapping->dvo_wiring = child->dvo_wiring;
+ mapping->ddc_pin = child->ddc_pin;
+ mapping->i2c_pin = child->i2c_pin;
+ mapping->initialized = 1;
DRM_DEBUG_KMS("SDVO device: dvo=%x, addr=%x, wiring=%d, ddc_pin=%d, i2c_pin=%d\n",
- p_mapping->dvo_port,
- p_mapping->slave_addr,
- p_mapping->dvo_wiring,
- p_mapping->ddc_pin,
- p_mapping->i2c_pin);
+ mapping->dvo_port,
+ mapping->slave_addr,
+ mapping->dvo_wiring,
+ mapping->ddc_pin,
+ mapping->i2c_pin);
} else {
DRM_DEBUG_KMS("Maybe one SDVO port is shared by "
"two SDVO device.\n");
@@ -577,7 +576,7 @@ parse_edp(struct drm_i915_private *dev_priv, const struct bdb_header *bdb)
{
const struct bdb_edp *edp;
const struct edp_power_seq *edp_pps;
- const struct edp_link_params *edp_link_params;
+ const struct edp_fast_link_params *edp_link_params;
int panel_type = dev_priv->vbt.panel_type;
edp = find_section(bdb, BDB_EDP);
@@ -601,7 +600,7 @@ parse_edp(struct drm_i915_private *dev_priv, const struct bdb_header *bdb)
/* Get the eDP sequencing and link info */
edp_pps = &edp->power_seqs[panel_type];
- edp_link_params = &edp->link_params[panel_type];
+ edp_link_params = &edp->fast_link_params[panel_type];
dev_priv->vbt.edp.pps = *edp_pps;
@@ -1113,7 +1112,7 @@ static void sanitize_aux_ch(struct drm_i915_private *dev_priv,
static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,
const struct bdb_header *bdb)
{
- union child_device_config *it, *child = NULL;
+ struct child_device_config *it, *child = NULL;
struct ddi_vbt_port_info *info = &dev_priv->vbt.ddi_port_info[port];
uint8_t hdmi_level_shift;
int i, j;
@@ -1141,7 +1140,7 @@ static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,
if (dvo_ports[port][j] == -1)
break;
- if (it->common.dvo_port == dvo_ports[port][j]) {
+ if (it->dvo_port == dvo_ports[port][j]) {
if (child) {
DRM_DEBUG_KMS("More than one child device for port %c in VBT, using the first.\n",
port_name(port));
@@ -1154,14 +1153,14 @@ static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,
if (!child)
return;
- aux_channel = child->common.aux_channel;
- ddc_pin = child->common.ddc_pin;
+ aux_channel = child->aux_channel;
+ ddc_pin = child->ddc_pin;
- is_dvi = child->common.device_type & DEVICE_TYPE_TMDS_DVI_SIGNALING;
- is_dp = child->common.device_type & DEVICE_TYPE_DISPLAYPORT_OUTPUT;
- is_crt = child->common.device_type & DEVICE_TYPE_ANALOG_OUTPUT;
- is_hdmi = is_dvi && (child->common.device_type & DEVICE_TYPE_NOT_HDMI_OUTPUT) == 0;
- is_edp = is_dp && (child->common.device_type & DEVICE_TYPE_INTERNAL_CONNECTOR);
+ is_dvi = child->device_type & DEVICE_TYPE_TMDS_DVI_SIGNALING;
+ is_dp = child->device_type & DEVICE_TYPE_DISPLAYPORT_OUTPUT;
+ is_crt = child->device_type & DEVICE_TYPE_ANALOG_OUTPUT;
+ is_hdmi = is_dvi && (child->device_type & DEVICE_TYPE_NOT_HDMI_OUTPUT) == 0;
+ is_edp = is_dp && (child->device_type & DEVICE_TYPE_INTERNAL_CONNECTOR);
info->supports_dvi = is_dvi;
info->supports_hdmi = is_hdmi;
@@ -1210,7 +1209,7 @@ static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,
if (bdb->version >= 158) {
/* The VBT HDMI level shift values match the table we have. */
- hdmi_level_shift = child->raw[7] & 0xF;
+ hdmi_level_shift = child->hdmi_level_shifter_value;
DRM_DEBUG_KMS("VBT HDMI level shift for port %c: %d\n",
port_name(port),
hdmi_level_shift);
@@ -1218,11 +1217,11 @@ static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,
}
/* Parse the I_boost config for SKL and above */
- if (bdb->version >= 196 && child->common.iboost) {
- info->dp_boost_level = translate_iboost(child->common.iboost_level & 0xF);
+ if (bdb->version >= 196 && child->iboost) {
+ info->dp_boost_level = translate_iboost(child->dp_iboost_level);
DRM_DEBUG_KMS("VBT (e)DP boost level for port %c: %d\n",
port_name(port), info->dp_boost_level);
- info->hdmi_boost_level = translate_iboost(child->common.iboost_level >> 4);
+ info->hdmi_boost_level = translate_iboost(child->hdmi_iboost_level);
DRM_DEBUG_KMS("VBT HDMI boost level for port %c: %d\n",
port_name(port), info->hdmi_boost_level);
}
@@ -1250,15 +1249,15 @@ static void
parse_device_mapping(struct drm_i915_private *dev_priv,
const struct bdb_header *bdb)
{
- const struct bdb_general_definitions *p_defs;
- const union child_device_config *p_child;
- union child_device_config *child_dev_ptr;
+ const struct bdb_general_definitions *defs;
+ const struct child_device_config *child;
+ struct child_device_config *child_dev_ptr;
int i, child_device_num, count;
u8 expected_size;
u16 block_size;
- p_defs = find_section(bdb, BDB_GENERAL_DEFINITIONS);
- if (!p_defs) {
+ defs = find_section(bdb, BDB_GENERAL_DEFINITIONS);
+ if (!defs) {
DRM_DEBUG_KMS("No general definition block is found, no devices defined.\n");
return;
}
@@ -1267,41 +1266,39 @@ parse_device_mapping(struct drm_i915_private *dev_priv,
} else if (bdb->version < 111) {
expected_size = 27;
} else if (bdb->version < 195) {
- BUILD_BUG_ON(sizeof(struct old_child_dev_config) != 33);
- expected_size = sizeof(struct old_child_dev_config);
+ expected_size = LEGACY_CHILD_DEVICE_CONFIG_SIZE;
} else if (bdb->version == 195) {
expected_size = 37;
} else if (bdb->version <= 197) {
expected_size = 38;
} else {
expected_size = 38;
- BUILD_BUG_ON(sizeof(*p_child) < 38);
+ BUILD_BUG_ON(sizeof(*child) < 38);
DRM_DEBUG_DRIVER("Expected child device config size for VBT version %u not known; assuming %u\n",
bdb->version, expected_size);
}
/* Flag an error for unexpected size, but continue anyway. */
- if (p_defs->child_dev_size != expected_size)
+ if (defs->child_dev_size != expected_size)
DRM_ERROR("Unexpected child device config size %u (expected %u for VBT version %u)\n",
- p_defs->child_dev_size, expected_size, bdb->version);
+ defs->child_dev_size, expected_size, bdb->version);
/* The legacy sized child device config is the minimum we need. */
- if (p_defs->child_dev_size < sizeof(struct old_child_dev_config)) {
+ if (defs->child_dev_size < LEGACY_CHILD_DEVICE_CONFIG_SIZE) {
DRM_DEBUG_KMS("Child device config size %u is too small.\n",
- p_defs->child_dev_size);
+ defs->child_dev_size);
return;
}
/* get the block size of general definitions */
- block_size = get_blocksize(p_defs);
+ block_size = get_blocksize(defs);
/* get the number of child device */
- child_device_num = (block_size - sizeof(*p_defs)) /
- p_defs->child_dev_size;
+ child_device_num = (block_size - sizeof(*defs)) / defs->child_dev_size;
count = 0;
/* get the number of child device that is present */
for (i = 0; i < child_device_num; i++) {
- p_child = child_device_ptr(p_defs, i);
- if (!p_child->common.device_type) {
+ child = child_device_ptr(defs, i);
+ if (!child->device_type) {
/* skip the device block if device type is invalid */
continue;
}
@@ -1311,7 +1308,7 @@ parse_device_mapping(struct drm_i915_private *dev_priv,
DRM_DEBUG_KMS("no child dev is parsed from VBT\n");
return;
}
- dev_priv->vbt.child_dev = kcalloc(count, sizeof(*p_child), GFP_KERNEL);
+ dev_priv->vbt.child_dev = kcalloc(count, sizeof(*child), GFP_KERNEL);
if (!dev_priv->vbt.child_dev) {
DRM_DEBUG_KMS("No memory space for child device\n");
return;
@@ -1320,8 +1317,8 @@ parse_device_mapping(struct drm_i915_private *dev_priv,
dev_priv->vbt.child_dev_num = count;
count = 0;
for (i = 0; i < child_device_num; i++) {
- p_child = child_device_ptr(p_defs, i);
- if (!p_child->common.device_type) {
+ child = child_device_ptr(defs, i);
+ if (!child->device_type) {
/* skip the device block if device type is invalid */
continue;
}
@@ -1334,8 +1331,8 @@ parse_device_mapping(struct drm_i915_private *dev_priv,
* (child_dev_size) of the child device. Accessing the data must
* depend on VBT version.
*/
- memcpy(child_dev_ptr, p_child,
- min_t(size_t, p_defs->child_dev_size, sizeof(*p_child)));
+ memcpy(child_dev_ptr, child,
+ min_t(size_t, defs->child_dev_size, sizeof(*child)));
/*
* copied full block, now init values when they are not
@@ -1343,12 +1340,12 @@ parse_device_mapping(struct drm_i915_private *dev_priv,
*/
if (bdb->version < 196) {
/* Set default values for bits added from v196 */
- child_dev_ptr->common.iboost = 0;
- child_dev_ptr->common.hpd_invert = 0;
+ child_dev_ptr->iboost = 0;
+ child_dev_ptr->hpd_invert = 0;
}
if (bdb->version < 192)
- child_dev_ptr->common.lspcon = 0;
+ child_dev_ptr->lspcon = 0;
}
return;
}
@@ -1559,7 +1556,7 @@ out:
*/
bool intel_bios_is_tv_present(struct drm_i915_private *dev_priv)
{
- union child_device_config *p_child;
+ const struct child_device_config *child;
int i;
if (!dev_priv->vbt.int_tv_support)
@@ -1569,11 +1566,11 @@ bool intel_bios_is_tv_present(struct drm_i915_private *dev_priv)
return true;
for (i = 0; i < dev_priv->vbt.child_dev_num; i++) {
- p_child = dev_priv->vbt.child_dev + i;
+ child = dev_priv->vbt.child_dev + i;
/*
* If the device type is not TV, continue.
*/
- switch (p_child->old.device_type) {
+ switch (child->device_type) {
case DEVICE_TYPE_INT_TV:
case DEVICE_TYPE_TV:
case DEVICE_TYPE_TV_SVIDEO_COMPOSITE:
@@ -1584,7 +1581,7 @@ bool intel_bios_is_tv_present(struct drm_i915_private *dev_priv)
/* Only when the addin_offset is non-zero, it is regarded
* as present.
*/
- if (p_child->old.addin_offset)
+ if (child->addin_offset)
return true;
}
@@ -1601,14 +1598,14 @@ bool intel_bios_is_tv_present(struct drm_i915_private *dev_priv)
*/
bool intel_bios_is_lvds_present(struct drm_i915_private *dev_priv, u8 *i2c_pin)
{
+ const struct child_device_config *child;
int i;
if (!dev_priv->vbt.child_dev_num)
return true;
for (i = 0; i < dev_priv->vbt.child_dev_num; i++) {
- union child_device_config *uchild = dev_priv->vbt.child_dev + i;
- struct old_child_dev_config *child = &uchild->old;
+ child = dev_priv->vbt.child_dev + i;
/* If the device type is not LFP, continue.
* We have to check both the new identifiers as well as the
@@ -1650,6 +1647,7 @@ bool intel_bios_is_lvds_present(struct drm_i915_private *dev_priv, u8 *i2c_pin)
*/
bool intel_bios_is_port_present(struct drm_i915_private *dev_priv, enum port port)
{
+ const struct child_device_config *child;
static const struct {
u16 dp, hdmi;
} port_mapping[] = {
@@ -1668,12 +1666,12 @@ bool intel_bios_is_port_present(struct drm_i915_private *dev_priv, enum port por
return false;
for (i = 0; i < dev_priv->vbt.child_dev_num; i++) {
- const union child_device_config *p_child =
- &dev_priv->vbt.child_dev[i];
- if ((p_child->common.dvo_port == port_mapping[port].dp ||
- p_child->common.dvo_port == port_mapping[port].hdmi) &&
- (p_child->common.device_type & (DEVICE_TYPE_TMDS_DVI_SIGNALING |
- DEVICE_TYPE_DISPLAYPORT_OUTPUT)))
+ child = dev_priv->vbt.child_dev + i;
+
+ if ((child->dvo_port == port_mapping[port].dp ||
+ child->dvo_port == port_mapping[port].hdmi) &&
+ (child->device_type & (DEVICE_TYPE_TMDS_DVI_SIGNALING |
+ DEVICE_TYPE_DISPLAYPORT_OUTPUT)))
return true;
}
@@ -1689,7 +1687,7 @@ bool intel_bios_is_port_present(struct drm_i915_private *dev_priv, enum port por
*/
bool intel_bios_is_port_edp(struct drm_i915_private *dev_priv, enum port port)
{
- union child_device_config *p_child;
+ const struct child_device_config *child;
static const short port_mapping[] = {
[PORT_B] = DVO_PORT_DPB,
[PORT_C] = DVO_PORT_DPC,
@@ -1705,10 +1703,10 @@ bool intel_bios_is_port_edp(struct drm_i915_private *dev_priv, enum port port)
return false;
for (i = 0; i < dev_priv->vbt.child_dev_num; i++) {
- p_child = dev_priv->vbt.child_dev + i;
+ child = dev_priv->vbt.child_dev + i;
- if (p_child->common.dvo_port == port_mapping[port] &&
- (p_child->common.device_type & DEVICE_TYPE_eDP_BITS) ==
+ if (child->dvo_port == port_mapping[port] &&
+ (child->device_type & DEVICE_TYPE_eDP_BITS) ==
(DEVICE_TYPE_eDP & DEVICE_TYPE_eDP_BITS))
return true;
}
@@ -1716,7 +1714,7 @@ bool intel_bios_is_port_edp(struct drm_i915_private *dev_priv, enum port port)
return false;
}
-static bool child_dev_is_dp_dual_mode(const union child_device_config *p_child,
+static bool child_dev_is_dp_dual_mode(const struct child_device_config *child,
enum port port)
{
static const struct {
@@ -1735,16 +1733,16 @@ static bool child_dev_is_dp_dual_mode(const union child_device_config *p_child,
if (port == PORT_A || port >= ARRAY_SIZE(port_mapping))
return false;
- if ((p_child->common.device_type & DEVICE_TYPE_DP_DUAL_MODE_BITS) !=
+ if ((child->device_type & DEVICE_TYPE_DP_DUAL_MODE_BITS) !=
(DEVICE_TYPE_DP_DUAL_MODE & DEVICE_TYPE_DP_DUAL_MODE_BITS))
return false;
- if (p_child->common.dvo_port == port_mapping[port].dp)
+ if (child->dvo_port == port_mapping[port].dp)
return true;
/* Only accept a HDMI dvo_port as DP++ if it has an AUX channel */
- if (p_child->common.dvo_port == port_mapping[port].hdmi &&
- p_child->common.aux_channel != 0)
+ if (child->dvo_port == port_mapping[port].hdmi &&
+ child->aux_channel != 0)
return true;
return false;
@@ -1753,13 +1751,13 @@ static bool child_dev_is_dp_dual_mode(const union child_device_config *p_child,
bool intel_bios_is_port_dp_dual_mode(struct drm_i915_private *dev_priv,
enum port port)
{
+ const struct child_device_config *child;
int i;
for (i = 0; i < dev_priv->vbt.child_dev_num; i++) {
- const union child_device_config *p_child =
- &dev_priv->vbt.child_dev[i];
+ child = dev_priv->vbt.child_dev + i;
- if (child_dev_is_dp_dual_mode(p_child, port))
+ if (child_dev_is_dp_dual_mode(child, port))
return true;
}
@@ -1776,17 +1774,17 @@ bool intel_bios_is_port_dp_dual_mode(struct drm_i915_private *dev_priv,
bool intel_bios_is_dsi_present(struct drm_i915_private *dev_priv,
enum port *port)
{
- union child_device_config *p_child;
+ const struct child_device_config *child;
u8 dvo_port;
int i;
for (i = 0; i < dev_priv->vbt.child_dev_num; i++) {
- p_child = dev_priv->vbt.child_dev + i;
+ child = dev_priv->vbt.child_dev + i;
- if (!(p_child->common.device_type & DEVICE_TYPE_MIPI_OUTPUT))
+ if (!(child->device_type & DEVICE_TYPE_MIPI_OUTPUT))
continue;
- dvo_port = p_child->common.dvo_port;
+ dvo_port = child->dvo_port;
switch (dvo_port) {
case DVO_PORT_MIPIA:
@@ -1816,16 +1814,19 @@ bool
intel_bios_is_port_hpd_inverted(struct drm_i915_private *dev_priv,
enum port port)
{
+ const struct child_device_config *child;
int i;
if (WARN_ON_ONCE(!IS_GEN9_LP(dev_priv)))
return false;
for (i = 0; i < dev_priv->vbt.child_dev_num; i++) {
- if (!dev_priv->vbt.child_dev[i].common.hpd_invert)
+ child = dev_priv->vbt.child_dev + i;
+
+ if (!child->hpd_invert)
continue;
- switch (dev_priv->vbt.child_dev[i].common.dvo_port) {
+ switch (child->dvo_port) {
case DVO_PORT_DPA:
case DVO_PORT_HDMIA:
if (port == PORT_A)
@@ -1860,16 +1861,19 @@ bool
intel_bios_is_lspcon_present(struct drm_i915_private *dev_priv,
enum port port)
{
+ const struct child_device_config *child;
int i;
if (!HAS_LSPCON(dev_priv))
return false;
for (i = 0; i < dev_priv->vbt.child_dev_num; i++) {
- if (!dev_priv->vbt.child_dev[i].common.lspcon)
+ child = dev_priv->vbt.child_dev + i;
+
+ if (!child->lspcon)
continue;
- switch (dev_priv->vbt.child_dev[i].common.dvo_port) {
+ switch (child->dvo_port) {
case DVO_PORT_DPA:
case DVO_PORT_HDMIA:
if (port == PORT_A)
generated by cgit v1.2.3 (git 2.46.0) at 2025-11-08 23:22:01 +0000