[PATCH v3 5/5] drm: Add decoding of DRM and KMS ioctls

Patrik Jakobsson
2015-07-01T12:53:06Z

This patch adds many of the DRM and KMS ioctls. The rest can be added as
needed.

* drm.c: Decode DRM_IOCTL_VERSION
* drm.c: Decode DRM_IOCTL_GET_UNIQUE
* drm.c: Decode DRM_IOCTL_GET_MAGIC
* drm.c: Decode DRM_IOCTL_WAIT_VBLANK
* drm.c: Decode DRM_IOCTL_MODE_GETRESOURCES
* drm.c: Decode DRM_IOCTL_MODE_GETCRTC
* drm.c: Decode DRM_IOCTL_MODE_SETCRTC
* drm.c: Decode DRM_IOCTL_MODE_CURSOR
* drm.c: Decode DRM_IOCTL_MODE_CURSOR2
* drm.c: Decode DRM_IOCTL_MODE_GETGAMMA
* drm.c: Decode DRM_IOCTL_MODE_SETGAMMA
* drm.c: Decode DRM_IOCTL_MODE_GETENCODER
* drm.c: Decode DRM_IOCTL_MODE_GETCONNECTOR
* drm.c: Decode DRM_IOCTL_MODE_GETPROPERTY
* drm.c: Decode DRM_IOCTL_MODE_SETPROPERTY
* drm.c: Decode DRM_IOCTL_MODE_GETPROPBLOB
* drm.c: Decode DRM_IOCTL_MODE_GETFB
* drm.c: Decode DRM_IOCTL_MODE_ADDFB
* drm.c: Decode DRM_IOCTL_MODE_RMFB
* drm.c: Decode DRM_IOCTL_MODE_PAGE_FLIP
* drm.c: Decode DRM_IOCTL_DIRTYFB
* drm.c: Decode DRM_IOCTL_CREATE_DUMB
* drm.c: Decode DRM_IOCTL_MAP_DUMB
* drm.c: Decode DRM_IOCTL_DESTROY_DUMB
* drm.c: Decode DRM_IOCTL_GEM_CLOSE

Signed-off-by: Patrik Jakobsson <patrik.jakobsson@linux.intel.com>
---
drm.c | 544 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 544 insertions(+)

diff --git a/drm.c b/drm.c
index 846ea4d..c1d54f4 100644
--- a/drm.c
+++ b/drm.c
@@ -104,6 +104,472 @@ int drm_decode_number(struct tcb *tcp, unsigned int arg)
return 0;
}

+static int drm_version(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_version ver;
+
+ if (exiting(tcp)) {
+ if (umove(tcp, arg, &ver))
+ return 0;
+
+ tprintf(", {version_major=%d, version_minor=%d, version_patchlevel=%d, "
+ "name_len=%lu, name=", ver.version_major,
+ ver.version_minor, ver.version_patchlevel,
+ ver.name_len);
+ printstr(tcp, (long)ver.name, ver.name_len);
+ tprintf(", date_len=%lu, date=", ver.date_len);
+ printstr(tcp, (long)ver.date, ver.date_len);
+ tprintf(", desc_len=%lu, desc=", ver.desc_len);
+ printstr(tcp, (long)ver.desc, ver.desc_len);
+ tprints("}");
+ }
+
+ return 1;
+}
+
+static int drm_get_unique(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_unique unique;
+
+ if (exiting(tcp)) {
+ if (umove(tcp, arg, &unique))
+ return 0;
+
+ tprintf(", {unique_len=%lu, unique=", unique.unique_len);
+ printstr(tcp, (long)unique.unique, unique.unique_len);
+ tprints("}");
+ }
+
+ return 1;
+}
+
+static int drm_get_magic(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_auth auth;
+
+ if (exiting(tcp)) {
+ if (umove(tcp, arg, &auth))
+ return 0;
+
+ tprintf(", {magic=%u}", auth.magic);
+ }
+
+ return 1;
+}
+
+static int drm_wait_vblank(struct tcb *tcp, const unsigned int code, long arg)
+{
+ union drm_wait_vblank vblank;
+
+ if (umove(tcp, arg, &vblank))
+ return 0;
+
+ if (entering(tcp)) {
+ tprintf(", {request={type=%u, sequence=%u, signal=%lu}",
+ vblank.request.type, vblank.request.sequence,
+ vblank.request.signal);
+ } else if (exiting(tcp)) {
+ tprintf(", reply={type=%u, sequence=%u, tval_sec=%ld, tval_usec=%ld}}",
+ vblank.reply.type, vblank.reply.sequence,
+ vblank.reply.tval_sec, vblank.reply.tval_usec);
+ }
+
+ return 1;
+}
+
+static int drm_mode_get_resources(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_mode_card_res res;
+
+
+ if (exiting(tcp)) {
+ if (umove(tcp, arg, &res))
+ return 0;
+
+ tprintf(", {fb_id_ptr=%p, crtc_id_ptr=%p, connector_id_ptr=%p, "
+ "encoder_id_ptr=%p, count_fbs=%u, count_crtcs=%u, "
+ "count_connectors=%u, count_encoders=%u, min_width=%u, "
+ "max_width=%u, min_height=%u, max_height=%u}",
+ (void *)res.fb_id_ptr, (void *)res.crtc_id_ptr,
+ (void *)res.connector_id_ptr, (void *)res.encoder_id_ptr,
+ res.count_fbs, res.count_crtcs, res.count_connectors,
+ res.count_encoders, res.min_width, res.max_width,
+ res.min_height, res.max_height);
+ }
+
+ return 1;
+}
+
+static void drm_mode_print_modeinfo(struct drm_mode_modeinfo *info)
+{
+ tprintf("clock=%u, hdisplay=%hu, hsync_start=%hu, hsync_end=%hu, "
+ "htotal=%hu, hskew=%hu, vdisplay=%hu, vsync_start=%hu, "
+ "vsync_end=%hu, vtotal=%hu, vscan=%hu, vrefresh=%u, "
+ "flags=0x%x, type=%u, name=%s", info->clock, info->hdisplay,
+ info->hsync_start, info->hsync_end, info->htotal, info->hskew,
+ info->vdisplay, info->vsync_start, info->vsync_end,
+ info->vtotal, info->vscan, info->vrefresh, info->flags,
+ info->type, info->name);
+}
+
+static int drm_mode_get_crtc(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_mode_crtc crtc;
+
+ if (umove(tcp, arg, &crtc))
+ return 0;
+
+ if (entering(tcp)) {
+ tprintf(", {crtc_id=%u", crtc.crtc_id);
+ } else if (exiting(tcp)) {
+ tprintf(", set_connectors_ptr=%p, count_connectors=%u, "
+ "fb_id=%u, x=%u, y=%u, gamma_size=%u, mode_valid=%u, "
+ "mode={", (void *)crtc.set_connectors_ptr,
+ crtc.count_connectors, crtc.fb_id, crtc.x, crtc.y,
+ crtc.gamma_size, crtc.mode_valid);
+
+ drm_mode_print_modeinfo(&crtc.mode);
+ tprintf("}}");
+ }
+
+ return 1;
+}
+
+static int drm_mode_set_crtc(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_mode_crtc crtc;
+
+ if (entering(tcp)) {
+ if (umove(tcp, arg, &crtc))
+ return 0;
+
+ tprintf(", {set_connectors_ptr=%p, count_connectors=%u, "
+ "crtc_id=%u, fb_id=%u, x=%u, y=%u, gamma_size=%u, "
+ "mode_valid=%u, mode={", (void *)crtc.set_connectors_ptr,
+ crtc.count_connectors, crtc.crtc_id, crtc.fb_id, crtc.x,
+ crtc.y, crtc.gamma_size, crtc.mode_valid);
+
+ drm_mode_print_modeinfo(&crtc.mode);
+ tprintf("}}");
+ }
+
+ return 1;
+}
+
+static int drm_mode_cursor(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_mode_cursor cursor;
+
+
+ if (entering(tcp)) {
+ if (umove(tcp, arg, &cursor))
+ return 0;
+
+ tprintf(", {flags=0x%x, crtc_id=%u, x=%d, y=%d, width=%u, "
+ "height=%u, handle=%u}", cursor.flags, cursor.crtc_id,
+ cursor.x, cursor.y, cursor.width, cursor.height,
+ cursor.handle);
+ }
+
+ return 1;
+}
+
+static int drm_mode_cursor2(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_mode_cursor2 cursor;
+
+ if (entering(tcp)) {
+ if (umove(tcp, arg, &cursor))
+ return 0;
+
+ tprintf(", {flags=0x%x, crtc_id=%u, x=%d, y=%d, width=%u, "
+ "height=%u, handle=%u, hot_x=%d, hot_y=%d}",
+ cursor.flags, cursor.crtc_id, cursor.x, cursor.y,
+ cursor.width, cursor.height, cursor.handle,
+ cursor.hot_x, cursor.hot_y);
+ }
+
+ return 1;
+}
+
+static int drm_mode_get_gamma(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_mode_crtc_lut lut;
+
+
+ if (entering(tcp)) {
+ if (umove(tcp, arg, &lut))
+ return 0;
+
+ /* We don't print the entire table, just the pointers */
+ tprintf(", {crtc_id=%u, gamma_size=%u, red=%p, green=%p, "
+ "blue=%p}", lut.crtc_id, lut.gamma_size,
+ (void *)lut.red, (void *)lut.green, (void *)lut.blue);
+ }
+
+ return 1;
+}
+
+static int drm_mode_set_gamma(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_mode_crtc_lut lut;
+
+ if (entering(tcp)) {
+ if (umove(tcp, arg, &lut))
+ return 0;
+
+ /* We don't print the entire table, just the rgb pointers */
+ tprintf(", {crtc_id=%u, gamma_size=%u, red=%p, green=%p, "
+ "blue=%p}", lut.crtc_id, lut.gamma_size,
+ (void *)lut.red, (void *)lut.green, (void *)lut.blue);
+ }
+
+ return 1;
+}
+
+static int drm_mode_get_encoder(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_mode_get_encoder enc;
+
+ if (umove(tcp, arg, &enc))
+ return 0;
+
+ if (entering(tcp)) {
+ tprintf(", {encoder_id=%u", enc.encoder_id);
+ } else if (exiting(tcp)) {
+ /* TODO: Print name of encoder type */
+ tprintf(", encoder_type=%u, crtc_id=%u, possible_crtcs=0x%x, "
+ "possible_clones=0x%x}", enc.encoder_type,
+ enc.crtc_id, enc.possible_crtcs, enc.possible_clones);
+ }
+
+ return 1;
+}
+
+static int drm_mode_get_connector(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_mode_get_connector con;
+
+ if (umove(tcp, arg, &con))
+ return 0;
+
+ /* We could be very verbose here but keep is simple for now */
+ if (entering(tcp)) {
+ tprintf(", {connector_id=%u", con.connector_id);
+ } else if (exiting(tcp)) {
+ tprintf(", encoders_ptr=%p, modes_ptr=%p, props_ptr=%p, "
+ "prop_values_ptr=%p, count_modes=%u, count_props=%u, "
+ "count_encoders=%u, encoder_id=%u, connector_type=%u, "
+ "connector_type_id=%u, connection=%u, mm_width=%u, "
+ "mm_height=%u, subpixel=%u}", (void *)con.encoders_ptr,
+ (void *)con.modes_ptr, (void *)con.props_ptr,
+ (void *)con.prop_values_ptr, con.count_modes,
+ con.count_props, con.count_encoders, con.encoder_id,
+ con.connector_type, con.connector_type_id,
+ con.connection, con.mm_width, con.mm_height,
+ con.subpixel);
+ }
+
+ return 1;
+}
+
+static int drm_mode_get_property(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_mode_get_property prop;
+
+ if (umove(tcp, arg, &prop))
+ return 0;
+
+ if (entering(tcp)) {
+ tprintf(", {prop_id=%u", prop.prop_id);
+ } else if (exiting(tcp)) {
+ tprintf(", values_ptr=%p, enum_blob_ptr=%p, flags=0x%x, "
+ "name=%s, count_values=%u, count_enum_blobs=%u}",
+ (void *)prop.values_ptr, (void *)prop.enum_blob_ptr,
+ prop.flags, prop.name, prop.count_values,
+ prop.count_enum_blobs);
+ }
+
+ return 1;
+}
+
+static int drm_mode_set_property(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_mode_connector_set_property prop;
+
+ if (entering(tcp)) {
+ if (umove(tcp, arg, &prop))
+ return 0;
+
+ tprintf(", {value=%Lu, prop_id=%u, connector_id=%u}",
+ prop.value, prop.prop_id, prop.connector_id);
+ }
+
+ return 1;
+}
+
+static int drm_mode_get_prop_blob(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_mode_get_blob blob;
+
+ if (umove(tcp, arg, &blob))
+ return 0;
+
+ if (entering(tcp)) {
+ tprintf(", {blob_id=%u", blob.blob_id);
+ } else if (exiting(tcp)) {
+ tprintf(", length=%u, data=%p}", blob.length,
+ (void *)blob.data);
+ }
+
+ return 1;
+}
+
+static int drm_mode_add_fb(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_mode_fb_cmd cmd;
+
+ if (umove(tcp, arg, &cmd))
+ return 0;
+
+ if (entering(tcp)) {
+ tprintf(", {width=%u, height=%u, pitch=%u, bpp=%u, depth=%u, "
+ "handle=%u", cmd.width, cmd.height, cmd.pitch,
+ cmd.bpp, cmd.depth, cmd.handle);
+ } else if (exiting(tcp)) {
+ tprintf(", fb_id=%u}", cmd.fb_id);
+ }
+
+ return 1;
+}
+
+static int drm_mode_get_fb(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_mode_fb_cmd cmd;
+
+ if (umove(tcp, arg, &cmd))
+ return 0;
+
+ if (entering(tcp)) {
+ tprintf(", {fb_id=%u", cmd.fb_id);
+ } else {
+ tprintf(", width=%u, height=%u, pitch=%u, bpp=%u, depth=%u, "
+ "handle=%u}", cmd.width, cmd.height, cmd.pitch,
+ cmd.bpp, cmd.depth, cmd.handle);
+ }
+
+ return 1;
+}
+
+static int drm_mode_rm_fb(struct tcb *tcp, const unsigned int code, long arg)
+{
+ unsigned int handle;
+
+
+ if (entering(tcp)) {
+ if (umove(tcp, arg, &handle))
+ return 0;
+
+ tprintf(", %u", handle);
+ }
+
+ return 1;
+}
+
+static int drm_mode_page_flip(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_mode_crtc_page_flip flip;
+
+ if (entering(tcp)) {
+ if (umove(tcp, arg, &flip))
+ return 0;
+
+ tprintf(", {crtc_id=%u, fb_id=%u, flags=0x%x, user_data=0x%Lx}",
+ flip.crtc_id, flip.fb_id, flip.flags, flip.user_data);
+ }
+
+ return 1;
+}
+
+static int drm_mode_dirty_fb(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_mode_fb_dirty_cmd cmd;
+
+
+ if (entering(tcp)) {
+ if (umove(tcp, arg, &cmd))
+ return 0;
+
+ tprintf(", {fb_id=%u, flags=0x%x, color=0x%x, num_clips=%u, "
+ "clips_ptr=%p}", cmd.fb_id, cmd.flags, cmd.color,
+ cmd.num_clips, (void *)cmd.clips_ptr);
+ }
+
+ return 1;
+}
+
+static int drm_mode_create_dumb(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_mode_create_dumb dumb;
+
+ if (umove(tcp, arg, &dumb))
+ return 0;
+
+ if (entering(tcp)) {
+ tprintf(", {width=%u, height=%u, bpp=%u, flags=0x%x",
+ dumb.width, dumb.height, dumb.bpp, dumb.flags);
+ } else if (exiting(tcp)) {
+ tprintf(", handle=%u, pitch=%u, size=%Lu}", dumb.handle,
+ dumb.pitch, dumb.size);
+ }
+
+ return 1;
+}
+
+static int drm_mode_map_dumb(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_mode_map_dumb dumb;
+
+ if (umove(tcp, arg, &dumb))
+ return 0;
+
+ if (entering(tcp)) {
+ tprintf(", {handle=%u", dumb.handle);
+ } else if (exiting(tcp)) {
+ tprintf(", offset=%Lu}", dumb.offset);
+ }
+
+ return 1;
+}
+
+static int drm_mode_destroy_dumb(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_mode_destroy_dumb dumb;
+
+ if (entering(tcp)) {
+ if (umove(tcp, arg, &dumb))
+ return 0;
+
+ tprintf(", {handle=%u}", dumb.handle);
+ }
+
+ return 1;
+}
+
+static int drm_gem_close(struct tcb *tcp, const unsigned int code, long arg)
+{
+ struct drm_gem_close close;
+
+ if (entering(tcp)) {
+ if (umove(tcp, arg, &close))
+ return 0;
+
+ tprintf(", {handle=%u}", close.handle);
+ }
+
+ return 1;
+}
+
int drm_ioctl(struct tcb *tcp, const unsigned int code, long arg)
{
int ret = 0;
@@ -112,6 +578,84 @@ int drm_ioctl(struct tcb *tcp, const unsigned int code, long arg)
if (drm_is_priv(tcp->u_arg[1])) {
if (verbose(tcp) && drm_is_driver(tcp, "i915"))
ret = drm_i915_ioctl(tcp, code, arg);
+ } else {
+ switch (code) {
+ case DRM_IOCTL_VERSION:
+ ret = drm_version(tcp, code, arg);
+ break;
+ case DRM_IOCTL_GET_UNIQUE:
+ ret = drm_get_unique(tcp, code, arg);
+ break;
+ case DRM_IOCTL_GET_MAGIC:
+ ret = drm_get_magic(tcp, code, arg);
+ break;
+ case DRM_IOCTL_WAIT_VBLANK:
+ ret = drm_wait_vblank(tcp, code, arg);
+ break;
+ case DRM_IOCTL_MODE_GETRESOURCES:
+ ret = drm_mode_get_resources(tcp, code, arg);
+ break;
+ case DRM_IOCTL_MODE_GETCRTC:
+ ret = drm_mode_get_crtc(tcp, code, arg);
+ break;
+ case DRM_IOCTL_MODE_SETCRTC:
+ ret = drm_mode_set_crtc(tcp, code, arg);
+ break;
+ case DRM_IOCTL_MODE_CURSOR:
+ ret = drm_mode_cursor(tcp, code, arg);
+ break;
+ case DRM_IOCTL_MODE_CURSOR2:
+ ret = drm_mode_cursor2(tcp, code, arg);
+ break;
+ case DRM_IOCTL_MODE_GETGAMMA:
+ ret = drm_mode_get_gamma(tcp, code, arg);
+ break;
+ case DRM_IOCTL_MODE_SETGAMMA:
+ ret = drm_mode_set_gamma(tcp, code, arg);
+ break;
+ case DRM_IOCTL_MODE_GETENCODER:
+ ret = drm_mode_get_encoder(tcp, code, arg);
+ break;
+ case DRM_IOCTL_MODE_GETCONNECTOR:
+ ret = drm_mode_get_connector(tcp, code, arg);
+ break;
+ case DRM_IOCTL_MODE_GETPROPERTY:
+ ret = drm_mode_get_property(tcp, code, arg);
+ break;
+ case DRM_IOCTL_MODE_SETPROPERTY:
+ ret = drm_mode_set_property(tcp, code, arg);
+ break;
+ case DRM_IOCTL_MODE_GETPROPBLOB:
+ ret = drm_mode_get_prop_blob(tcp, code, arg);
+ break;
+ case DRM_IOCTL_MODE_GETFB:
+ ret = drm_mode_get_fb(tcp, code, arg);
+ break;
+ case DRM_IOCTL_MODE_ADDFB:
+ ret = drm_mode_add_fb(tcp, code, arg);
+ break;
+ case DRM_IOCTL_MODE_RMFB:
+ ret = drm_mode_rm_fb(tcp, code, arg);
+ break;
+ case DRM_IOCTL_MODE_PAGE_FLIP:
+ ret = drm_mode_page_flip(tcp, code, arg);
+ break;
+ case DRM_IOCTL_MODE_DIRTYFB:
+ ret = drm_mode_dirty_fb(tcp, code, arg);
+ break;
+ case DRM_IOCTL_MODE_CREATE_DUMB:
+ ret = drm_mode_create_dumb(tcp, code, arg);
+ break;
+ case DRM_IOCTL_MODE_MAP_DUMB:
+ ret = drm_mode_map_dumb(tcp, code, arg);
+ break;
+ case DRM_IOCTL_MODE_DESTROY_DUMB:
+ ret = drm_mode_destroy_dumb(tcp, code, arg);
+ break;
+ case DRM_IOCTL_GEM_CLOSE:
+ ret = drm_gem_close(tcp, code, arg);
+ break;
+ }
}

/* Free any allocated private data */
--
2.1.4