Commit b0ee9e7f authored by Dave Airlie's avatar Dave Airlie

drm/fb: add support for tiled monitor configurations. (v2)

This adds fbdev/con support for tiled monitors, so that we
only set a mode on the correct half of the monitor, or
span the two halves if needed.

v2: remove unneeded ERROR, fix | vs ||
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 6f134d7b
...@@ -1000,19 +1000,21 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper, ...@@ -1000,19 +1000,21 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
crtc_count = 0; crtc_count = 0;
for (i = 0; i < fb_helper->crtc_count; i++) { for (i = 0; i < fb_helper->crtc_count; i++) {
struct drm_display_mode *desired_mode; struct drm_display_mode *desired_mode;
int x, y;
desired_mode = fb_helper->crtc_info[i].desired_mode; desired_mode = fb_helper->crtc_info[i].desired_mode;
x = fb_helper->crtc_info[i].x;
y = fb_helper->crtc_info[i].y;
if (desired_mode) { if (desired_mode) {
if (gamma_size == 0) if (gamma_size == 0)
gamma_size = fb_helper->crtc_info[i].mode_set.crtc->gamma_size; gamma_size = fb_helper->crtc_info[i].mode_set.crtc->gamma_size;
if (desired_mode->hdisplay < sizes.fb_width) if (desired_mode->hdisplay + x < sizes.fb_width)
sizes.fb_width = desired_mode->hdisplay; sizes.fb_width = desired_mode->hdisplay + x;
if (desired_mode->vdisplay < sizes.fb_height) if (desired_mode->vdisplay + y < sizes.fb_height)
sizes.fb_height = desired_mode->vdisplay; sizes.fb_height = desired_mode->vdisplay + y;
if (desired_mode->hdisplay > sizes.surface_width) if (desired_mode->hdisplay + x > sizes.surface_width)
sizes.surface_width = desired_mode->hdisplay; sizes.surface_width = desired_mode->hdisplay + x;
if (desired_mode->vdisplay > sizes.surface_height) if (desired_mode->vdisplay + y > sizes.surface_height)
sizes.surface_height = desired_mode->vdisplay; sizes.surface_height = desired_mode->vdisplay + y;
crtc_count++; crtc_count++;
} }
} }
...@@ -1312,6 +1314,7 @@ static void drm_enable_connectors(struct drm_fb_helper *fb_helper, ...@@ -1312,6 +1314,7 @@ static void drm_enable_connectors(struct drm_fb_helper *fb_helper,
static bool drm_target_cloned(struct drm_fb_helper *fb_helper, static bool drm_target_cloned(struct drm_fb_helper *fb_helper,
struct drm_display_mode **modes, struct drm_display_mode **modes,
struct drm_fb_offset *offsets,
bool *enabled, int width, int height) bool *enabled, int width, int height)
{ {
int count, i, j; int count, i, j;
...@@ -1383,27 +1386,88 @@ static bool drm_target_cloned(struct drm_fb_helper *fb_helper, ...@@ -1383,27 +1386,88 @@ static bool drm_target_cloned(struct drm_fb_helper *fb_helper,
return false; return false;
} }
static int drm_get_tile_offsets(struct drm_fb_helper *fb_helper,
struct drm_display_mode **modes,
struct drm_fb_offset *offsets,
int idx,
int h_idx, int v_idx)
{
struct drm_fb_helper_connector *fb_helper_conn;
int i;
int hoffset = 0, voffset = 0;
for (i = 0; i < fb_helper->connector_count; i++) {
fb_helper_conn = fb_helper->connector_info[i];
if (!fb_helper_conn->connector->has_tile)
continue;
if (!modes[i] && (h_idx || v_idx)) {
DRM_DEBUG_KMS("no modes for connector tiled %d %d\n", i,
fb_helper_conn->connector->base.id);
continue;
}
if (fb_helper_conn->connector->tile_h_loc < h_idx)
hoffset += modes[i]->hdisplay;
if (fb_helper_conn->connector->tile_v_loc < v_idx)
voffset += modes[i]->vdisplay;
}
offsets[idx].x = hoffset;
offsets[idx].y = voffset;
DRM_DEBUG_KMS("returned %d %d for %d %d\n", hoffset, voffset, h_idx, v_idx);
return 0;
}
static bool drm_target_preferred(struct drm_fb_helper *fb_helper, static bool drm_target_preferred(struct drm_fb_helper *fb_helper,
struct drm_display_mode **modes, struct drm_display_mode **modes,
struct drm_fb_offset *offsets,
bool *enabled, int width, int height) bool *enabled, int width, int height)
{ {
struct drm_fb_helper_connector *fb_helper_conn; struct drm_fb_helper_connector *fb_helper_conn;
int i; int i;
uint64_t conn_configured = 0, mask;
int tile_pass = 0;
mask = (1 << fb_helper->connector_count) - 1;
retry:
for (i = 0; i < fb_helper->connector_count; i++) { for (i = 0; i < fb_helper->connector_count; i++) {
fb_helper_conn = fb_helper->connector_info[i]; fb_helper_conn = fb_helper->connector_info[i];
if (enabled[i] == false) if (conn_configured & (1 << i))
continue;
if (enabled[i] == false) {
conn_configured |= (1 << i);
continue;
}
/* first pass over all the untiled connectors */
if (tile_pass == 0 && fb_helper_conn->connector->has_tile)
continue; continue;
if (tile_pass == 1) {
if (fb_helper_conn->connector->tile_h_loc != 0 ||
fb_helper_conn->connector->tile_v_loc != 0)
continue;
} else {
if (fb_helper_conn->connector->tile_h_loc != tile_pass -1 &&
fb_helper_conn->connector->tile_v_loc != tile_pass - 1)
/* if this tile_pass doesn't cover any of the tiles - keep going */
continue;
/* find the tile offsets for this pass - need
to find all tiles left and above */
drm_get_tile_offsets(fb_helper, modes, offsets,
i, fb_helper_conn->connector->tile_h_loc, fb_helper_conn->connector->tile_v_loc);
}
DRM_DEBUG_KMS("looking for cmdline mode on connector %d\n", DRM_DEBUG_KMS("looking for cmdline mode on connector %d\n",
fb_helper_conn->connector->base.id); fb_helper_conn->connector->base.id);
/* got for command line mode first */ /* got for command line mode first */
modes[i] = drm_pick_cmdline_mode(fb_helper_conn, width, height); modes[i] = drm_pick_cmdline_mode(fb_helper_conn, width, height);
if (!modes[i]) { if (!modes[i]) {
DRM_DEBUG_KMS("looking for preferred mode on connector %d\n", DRM_DEBUG_KMS("looking for preferred mode on connector %d %d\n",
fb_helper_conn->connector->base.id); fb_helper_conn->connector->base.id, fb_helper_conn->connector->tile_group ? fb_helper_conn->connector->tile_group->id : 0);
modes[i] = drm_has_preferred_mode(fb_helper_conn, width, height); modes[i] = drm_has_preferred_mode(fb_helper_conn, width, height);
} }
/* No preferred modes, pick one off the list */ /* No preferred modes, pick one off the list */
...@@ -1413,6 +1477,12 @@ static bool drm_target_preferred(struct drm_fb_helper *fb_helper, ...@@ -1413,6 +1477,12 @@ static bool drm_target_preferred(struct drm_fb_helper *fb_helper,
} }
DRM_DEBUG_KMS("found mode %s\n", modes[i] ? modes[i]->name : DRM_DEBUG_KMS("found mode %s\n", modes[i] ? modes[i]->name :
"none"); "none");
conn_configured |= (1 << i);
}
if ((conn_configured & mask) != mask) {
tile_pass++;
goto retry;
} }
return true; return true;
} }
...@@ -1502,6 +1572,7 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper) ...@@ -1502,6 +1572,7 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper)
struct drm_device *dev = fb_helper->dev; struct drm_device *dev = fb_helper->dev;
struct drm_fb_helper_crtc **crtcs; struct drm_fb_helper_crtc **crtcs;
struct drm_display_mode **modes; struct drm_display_mode **modes;
struct drm_fb_offset *offsets;
struct drm_mode_set *modeset; struct drm_mode_set *modeset;
bool *enabled; bool *enabled;
int width, height; int width, height;
...@@ -1516,9 +1587,11 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper) ...@@ -1516,9 +1587,11 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper)
sizeof(struct drm_fb_helper_crtc *), GFP_KERNEL); sizeof(struct drm_fb_helper_crtc *), GFP_KERNEL);
modes = kcalloc(dev->mode_config.num_connector, modes = kcalloc(dev->mode_config.num_connector,
sizeof(struct drm_display_mode *), GFP_KERNEL); sizeof(struct drm_display_mode *), GFP_KERNEL);
offsets = kcalloc(dev->mode_config.num_connector,
sizeof(struct drm_fb_offset), GFP_KERNEL);
enabled = kcalloc(dev->mode_config.num_connector, enabled = kcalloc(dev->mode_config.num_connector,
sizeof(bool), GFP_KERNEL); sizeof(bool), GFP_KERNEL);
if (!crtcs || !modes || !enabled) { if (!crtcs || !modes || !enabled || !offsets) {
DRM_ERROR("Memory allocation failed\n"); DRM_ERROR("Memory allocation failed\n");
goto out; goto out;
} }
...@@ -1528,14 +1601,16 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper) ...@@ -1528,14 +1601,16 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper)
if (!(fb_helper->funcs->initial_config && if (!(fb_helper->funcs->initial_config &&
fb_helper->funcs->initial_config(fb_helper, crtcs, modes, fb_helper->funcs->initial_config(fb_helper, crtcs, modes,
offsets,
enabled, width, height))) { enabled, width, height))) {
memset(modes, 0, dev->mode_config.num_connector*sizeof(modes[0])); memset(modes, 0, dev->mode_config.num_connector*sizeof(modes[0]));
memset(crtcs, 0, dev->mode_config.num_connector*sizeof(crtcs[0])); memset(crtcs, 0, dev->mode_config.num_connector*sizeof(crtcs[0]));
memset(offsets, 0, dev->mode_config.num_connector*sizeof(offsets[0]));
if (!drm_target_cloned(fb_helper, if (!drm_target_cloned(fb_helper, modes, offsets,
modes, enabled, width, height) && enabled, width, height) &&
!drm_target_preferred(fb_helper, !drm_target_preferred(fb_helper, modes, offsets,
modes, enabled, width, height)) enabled, width, height))
DRM_ERROR("Unable to find initial modes\n"); DRM_ERROR("Unable to find initial modes\n");
DRM_DEBUG_KMS("picking CRTCs for %dx%d config\n", DRM_DEBUG_KMS("picking CRTCs for %dx%d config\n",
...@@ -1555,18 +1630,23 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper) ...@@ -1555,18 +1630,23 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper)
for (i = 0; i < fb_helper->connector_count; i++) { for (i = 0; i < fb_helper->connector_count; i++) {
struct drm_display_mode *mode = modes[i]; struct drm_display_mode *mode = modes[i];
struct drm_fb_helper_crtc *fb_crtc = crtcs[i]; struct drm_fb_helper_crtc *fb_crtc = crtcs[i];
struct drm_fb_offset *offset = &offsets[i];
modeset = &fb_crtc->mode_set; modeset = &fb_crtc->mode_set;
if (mode && fb_crtc) { if (mode && fb_crtc) {
DRM_DEBUG_KMS("desired mode %s set on crtc %d\n", DRM_DEBUG_KMS("desired mode %s set on crtc %d (%d,%d)\n",
mode->name, fb_crtc->mode_set.crtc->base.id); mode->name, fb_crtc->mode_set.crtc->base.id, offset->x, offset->y);
fb_crtc->desired_mode = mode; fb_crtc->desired_mode = mode;
fb_crtc->x = offset->x;
fb_crtc->y = offset->y;
if (modeset->mode) if (modeset->mode)
drm_mode_destroy(dev, modeset->mode); drm_mode_destroy(dev, modeset->mode);
modeset->mode = drm_mode_duplicate(dev, modeset->mode = drm_mode_duplicate(dev,
fb_crtc->desired_mode); fb_crtc->desired_mode);
modeset->connectors[modeset->num_connectors++] = fb_helper->connector_info[i]->connector; modeset->connectors[modeset->num_connectors++] = fb_helper->connector_info[i]->connector;
modeset->fb = fb_helper->fb; modeset->fb = fb_helper->fb;
modeset->x = offset->x;
modeset->y = offset->y;
} }
} }
...@@ -1583,6 +1663,7 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper) ...@@ -1583,6 +1663,7 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper)
out: out:
kfree(crtcs); kfree(crtcs);
kfree(modes); kfree(modes);
kfree(offsets);
kfree(enabled); kfree(enabled);
} }
......
...@@ -324,6 +324,7 @@ intel_fb_helper_crtc(struct drm_fb_helper *fb_helper, struct drm_crtc *crtc) ...@@ -324,6 +324,7 @@ intel_fb_helper_crtc(struct drm_fb_helper *fb_helper, struct drm_crtc *crtc)
static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper,
struct drm_fb_helper_crtc **crtcs, struct drm_fb_helper_crtc **crtcs,
struct drm_display_mode **modes, struct drm_display_mode **modes,
struct drm_fb_offset *offsets,
bool *enabled, int width, int height) bool *enabled, int width, int height)
{ {
struct drm_device *dev = fb_helper->dev; struct drm_device *dev = fb_helper->dev;
...@@ -332,6 +333,8 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, ...@@ -332,6 +333,8 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper,
bool fallback = true; bool fallback = true;
int num_connectors_enabled = 0; int num_connectors_enabled = 0;
int num_connectors_detected = 0; int num_connectors_detected = 0;
uint64_t conn_configured = 0, mask;
int pass = 0;
save_enabled = kcalloc(dev->mode_config.num_connector, sizeof(bool), save_enabled = kcalloc(dev->mode_config.num_connector, sizeof(bool),
GFP_KERNEL); GFP_KERNEL);
...@@ -339,7 +342,8 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, ...@@ -339,7 +342,8 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper,
return false; return false;
memcpy(save_enabled, enabled, dev->mode_config.num_connector); memcpy(save_enabled, enabled, dev->mode_config.num_connector);
mask = (1 << fb_helper->connector_count) - 1;
retry:
for (i = 0; i < fb_helper->connector_count; i++) { for (i = 0; i < fb_helper->connector_count; i++) {
struct drm_fb_helper_connector *fb_conn; struct drm_fb_helper_connector *fb_conn;
struct drm_connector *connector; struct drm_connector *connector;
...@@ -349,12 +353,19 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, ...@@ -349,12 +353,19 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper,
fb_conn = fb_helper->connector_info[i]; fb_conn = fb_helper->connector_info[i];
connector = fb_conn->connector; connector = fb_conn->connector;
if (conn_configured & (1 << i))
continue;
if (pass == 0 && !connector->has_tile)
continue;
if (connector->status == connector_status_connected) if (connector->status == connector_status_connected)
num_connectors_detected++; num_connectors_detected++;
if (!enabled[i]) { if (!enabled[i]) {
DRM_DEBUG_KMS("connector %s not enabled, skipping\n", DRM_DEBUG_KMS("connector %s not enabled, skipping\n",
connector->name); connector->name);
conn_configured |= (1 << i);
continue; continue;
} }
...@@ -373,6 +384,7 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, ...@@ -373,6 +384,7 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper,
DRM_DEBUG_KMS("connector %s has no encoder or crtc, skipping\n", DRM_DEBUG_KMS("connector %s has no encoder or crtc, skipping\n",
connector->name); connector->name);
enabled[i] = false; enabled[i] = false;
conn_configured |= (1 << i);
continue; continue;
} }
...@@ -400,8 +412,8 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, ...@@ -400,8 +412,8 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper,
/* try for preferred next */ /* try for preferred next */
if (!modes[i]) { if (!modes[i]) {
DRM_DEBUG_KMS("looking for preferred mode on connector %s\n", DRM_DEBUG_KMS("looking for preferred mode on connector %s %d\n",
connector->name); connector->name, connector->has_tile);
modes[i] = drm_has_preferred_mode(fb_conn, width, modes[i] = drm_has_preferred_mode(fb_conn, width,
height); height);
} }
...@@ -444,6 +456,12 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, ...@@ -444,6 +456,12 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper,
modes[i]->flags & DRM_MODE_FLAG_INTERLACE ? "i" :""); modes[i]->flags & DRM_MODE_FLAG_INTERLACE ? "i" :"");
fallback = false; fallback = false;
conn_configured |= (1 << i);
}
if ((conn_configured & mask) != mask) {
pass++;
goto retry;
} }
/* /*
......
...@@ -34,9 +34,14 @@ struct drm_fb_helper; ...@@ -34,9 +34,14 @@ struct drm_fb_helper;
#include <linux/kgdb.h> #include <linux/kgdb.h>
struct drm_fb_offset {
int x, y;
};
struct drm_fb_helper_crtc { struct drm_fb_helper_crtc {
struct drm_mode_set mode_set; struct drm_mode_set mode_set;
struct drm_display_mode *desired_mode; struct drm_display_mode *desired_mode;
int x, y;
}; };
struct drm_fb_helper_surface_size { struct drm_fb_helper_surface_size {
...@@ -72,6 +77,7 @@ struct drm_fb_helper_funcs { ...@@ -72,6 +77,7 @@ struct drm_fb_helper_funcs {
bool (*initial_config)(struct drm_fb_helper *fb_helper, bool (*initial_config)(struct drm_fb_helper *fb_helper,
struct drm_fb_helper_crtc **crtcs, struct drm_fb_helper_crtc **crtcs,
struct drm_display_mode **modes, struct drm_display_mode **modes,
struct drm_fb_offset *offsets,
bool *enabled, int width, int height); bool *enabled, int width, int height);
}; };
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment